Inclusion criteria (patients):
• Age 50-99
• English speaking
• Diagnosis of dementia or cognitive impairment or memory loss
• Clinical Dementia Rating (CDR) scale score between 0.5 and 2.0
• Actively involved caregiver
• Resides at home, assisted living facility, or long-term care facility Inclusion criteria (caregivers)
• English speaking
• Age 18 and older
• Contact with patient at least 1 time a week
• Has access to a working telephone Exclusion criteria (patients):
• Dementia due to cerebrovascular disease as primary cause
• History of head and neck cancer or other structural deformity that can affect swallowing
• Allergy to barium
• Currently breastfeed or pregnant or planning to become pregnant Exclusion criteria (caregivers):
• Lacks ability to give consent

• New-onset ischemic stroke 12 months prior
•chronic time frame;
• Right hand dominant
•affected arm;
• Mild to moderate unilateral upper extremity impairment or severe unilateral upper extremity impairment;
• No upper extremity injury or conditions that limited use prior to the stroke;
• Must be able to provide informed consent on their own behalf.
• Inability to competently participate in study procedures
• Concurrent upper extremity therapy, other neurological or psychiatric disorders

ADULTS
• Age 18-90
• Any participant undergoing sleep endoscopy as part of standard clinical care would be eligible. This entails physician concern for sleep-disordered breathing and corresponding questionnaire and/or polysomnogram results supporting a diagnosis of obstructive sleep apnea.
• Participants without apnea are eligible, provided they are undergoing tonsillectomy or bronchoscopy for either chronic tonsillitis or airway assessment without concern for history of sleep apnea.
• Women with childbearing potential will not be excluded, as the proposed experiment would have no potential ramifications on childbearing potential. CHILDREN
• Age 5-17
• Any patients undergoing sleep endoscopy as part of standard clinical care would be eligible.
• Participants undergoing either tonsillectomy for chronic tonsillitis or bronchoscopy for airway assessment.
• Women with childbearing potential will not be excluded, as the proposed experiment would have no potential ramifications on childbearing potential.
• Participant desire to avoid added anesthesia time.
• Inability to safely tolerate the added anesthesia time (about 5-10 minutes) for the experiment (as judged by either otolaryngologist or anesthesiologist).
• Pregnant women
• Vulnerable groups (i.e., prisoners, individuals lacking consent capacity, individuals unable to read the consent form).

Inclusion Criteria (Experimental Group):
• Stroke patients with persistent upper extremity (UE) deficits Inclusion Criteria (Control Group 1)
• Stroke patients without UE impairments
• Participants with risk factors for stroke
• healthy controls
• No known neurologic, psychiatric or developmental disability Inclusion Criteria (Control Group 2)
• Stroke patients with persistent upper extremity (UE) deficits
• Moderate upper extremity (dominant right hand affected) impairment (score of 1 or 2 on the motor sub-component of the NIH stroke scale (NIHSS) and ARAT score 20-45)
• No upper extremity injury or conditions that limited use prior to the stroke
• Pre-stroke independence with a Modified Rankin Score of 0 or 1, for the standard FES only intervention. Exclusion Criteria (for all participants):
• Allergic to electrode gel, surgical tape and metals
• Participants under treatment for infectious diseases or having apparent oral lesions or inflammation will be excluded from the study
• Women who are pregnant or may become pregnant during the course of the study will be excluded
• Participants with contraindications for MRI will be offered the opportunity to participate in the interventions study only (e.g. EEG-BCI-FES and behavioral testing) Exclusion Criteria (for healthy controls)
• Contraindications for MRI
• Allergic to electrode gel, surgical tape, and metals.

• Availability of an eligible haploidentical donor
• Hematologic malignancy or solid tumor
• Patients with more than one malignancy (hematologic or solid tumor) are eligible
• Patients with hematologic malignancy must have no HLA identical sibling or suitable unrelated donor OR time needed to find an acceptable unrelated donor match would likely result in disease progression such that the patient may become ineligible for any type of potentially curative transplant
• Relapsed or primary therapy-refractory AML with bone marrow blast < 20%
• High-risk refractory or relapsed ALL in patients for whom transplantation is deemed indicated (relapse occurring < 30 months from diagnosis, patients relapsing after previous allogeneic transplant, relapse after 2nd remission, primary induction failure or hypodiploidy)
• Relapsed Hodgkin lymphoma unable to achieve 2nd remission or Very Good Partial Response (VGPR) and therefore ineligible to receive autologous hematopoietic stem cell transplant (auto-HSCT)
• Hodgkin lymphoma relapsing after auto-HSCT
• Primary refractory or relapsed non-Hodgkin lymphoma unable to achieve 2nd remission or VGPR and therefore ineligible to receive auto-HSCT
• Non-Hodgkin lymphoma relapsing after auto-HSCT
• Myelodysplastic Syndrome/Myeloproliferative Syndrome Solid Tumor
• Patients with solid tumor must have failed or have been ineligible to receive auto-HSCT or if auto-HSCT would not offer > 20% chance of cure
• Neuroblastoma
• high risk with relapsed or refractory disease
• Soft tissue sarcomas (Rhabdomyosarcoma, Ewing sarcoma, Primitive Neuroectodermal Tumor or other high-risk extracranial solid tumors)
• Relapsed or primary refractory metastatic
• 1st complete remission, but very high-risk features (i.e., < 20% survival with conventional therapy)
• Osteosarcoma
• Failure to achieve Complete Response (CR) following initial therapy
• Relapsed with pulmonary or bone metastases and did not achieve a CR with surgery and/or chemotherapy
• Karnofsky (patients > 16 years) or Lansky (patients 16 years or older) performance score of ≥ 60
• Life expectancy of ≥ 3 months
• Patient must have fully recovered from acute toxic effects of all prior chemotherapy, immunotherapy, or radiotherapy prior to entering this study
• Study enrollment no earlier than 3 months after preceding HSCT
• Glomerular Filtration Rate (GFR) ≥ 60 ml/min/1.73m2
• Total bilirubin < 3 mg/dL
• ALT (alanine aminotransferase, SCPT) ≤ 5 x Upper LImit of Normal (ULN) for age
• Ejection fraction of > 40% by Multigated Acquisition Scan (MUGA) or echocardiogram
• No evidence of dyspnea at rest
• No supplemental oxygen requirement
• If measured, carbon monoxide diffusion capacity (DLCO) >50%
• No severe peripheral neuropathy, signs of leukoencephalopathy or active Central Nervous System (CNS) infection
• Patients with seizure disorders may be enrolled if seizures are well controlled on anticonvulsant therapy
• If of reproductive potential, negative pregnancy test and willing to use effective birth control method
• Informed consent from patient or legal guardian (if patient is minor) Inclusion Criteria for Donors:
• Donor must be 18 years of age minimum, 65 years of age maximum
• Donor must be in good general health as determined by evaluating medical provider
• Must meet donor criteria for human cells, tissues, and cellular and tissue-based products per Code of Federal Regulations 21 CFR 1271, subpart C. Specifically:
• Donor screening in accordance with 1271.75 indicates that the donor:
• Is free from risk factors for, and clinical evidence of, infection due to relevant communicable disease agents and diseases; and
• Is free from communicable disease risks associated with xenotransplantation; and
• The results of donor testing for relevant communicable disease agents in accordance with 1271.80 and 1271.85 are negative or nonreactive, except as provided in 1271.80(d)(1).
• Haploidentical by HLA-typing
• Preference will be given to donors who demonstrate KIR incompatibility with recipient HLA class I ligands defined as the donor expressing a KIR gene for which the corresponding HLA class I ligand is not expressed by the recipient.
• Negative testing for relevant communicable diseases:
• Hepatitis B surface antigen (HBsAg)
• Hepatitis B core antibody (Anti-HBc)
• Hepatitis C antibody (Anti-HCV)
• HIV 1 & 2 antibody (Anti-HIV-1, 2 plus O)
• HTLV I/II antibody (Anti-HTLV I/II)
• RPR (Syphilis TP)
• CMV (Capture CMV)
• MPX for: HepB (HBV-PCR), HepC (HCV-PCR), HIV (HIV-PCR)
• NAT for West Nile Virus (WNV-PCR)
• T. Cruzi
•EIA (Chagas)
• Pregnant or breast-feeding
• HIV infection
• Heart failure or uncontrolled cardiac rhythm disturbance
• Uncontrolled, Serious Active Infection
• Prior organ allograft
• Significant serious intercurrent illness unrelated to cancer or its treatment not covered by other exclusion criteria expected to significantly increase the risk of HSCT
• Any mental or physical condition, in the opinion of the PI (or PI designee), which could interfere with the ability of the subject (or the only parent or legal guardian available to care for the subject) to understand or adhere to the requirements of the study
• Enrollment in any other clinical study from screening up to Day 100 (unless PI judges such enrollment would not interfere with endpoints of this study) Exclusion Criteria for Donors:
• Lactating females
• Pregnant females

• Male and Female patients aged 18-80 presenting for carotid endarterectomy
• Patients not felt suitable for carotid endarterectomy and those with impaired decision-making capacity

• Female, post-menopausal
• Probable AD or MCI due to AD according to NIA-AA criteria
• Taking a stable dose of a cholinesterase inhibitor such as donepezil/Aricept and dosage likely to remain stable throughout the trial
• MOCA > 11 or blind MOCA > 8 (inclusive) at screening visit
• Hachinski score <5 supporting clinical judgment that dementia is not of vascular origin
• Fluent in English
• has a study partner / caregiver who interacts with the subject for at least 5 hours per week on average and can participate in evaluations
• Presence based on exam, history or MRI of significant brain disease other than AD such as schizophrenia, epilepsy, Parkinson's disease or large territory stroke
• Current substance abuse in accord with DSM V criteria
• Significantly depressed (Geriatric Depression Scale > 10)
• Physical or psychological MRI contraindications, or likely unable to tolerate neuroimaging
• Taking other medications known to affect serum sex hormone or gonadotropin concentrations such as estrogen and/or progesterone for hormone replacement therapy, goserelin or danazol
• Presence of significant systemic illness likely to interfere with participation in or completion of the study or to affect study results such as cancer within 5 years (other than non-melanoma skin cancer), autoimmune disease, recent myocardial infarction, signs/symptoms of organ failure based on history, ECG, screening laboratory and/or physical exams
• Receiving other investigational drugs within 30 days or 5 half-lives prior to randomization, whichever is longer

All Patients
• Previously confirmed (histologically or cytologically) pediatric solid tumor (e.g., neuroblastoma, sarcoma), lymphoma (including Hodgkin's lymphoma), or malignant brain tumors that are clinically or radiographically suspected to be relapsed, refractory, or recurrent for which there are no standard treatment options with curative potential. Note: patients with diffuse intrinsic pontine glioma (DIPG) may enroll without histological or cytological confirmation.
• ≥ 2 years of age and ≤ 25 years of age at time of consent/assent
• If ≥ age 16 years, Karnofsky performance status of ≥ 60. If < age 16 years, Lansky performance status ≥ 60
• Platelets ≥ 75,000/µL (last transfusion, if any, must be at least 1 week prior to study registration, and, unless deemed medically necessary, no transfusions are allowed between registration and dosing)
• Absolute neutrophil count ≥ 750/µL
• Hemoglobin ≥ 8 g/dL (last transfusion must be at least 1 week prior to study registration, and, unless deemed medically necessary, no transfusions are allowed between registration and dosing)
• Using the bedside Schwartz formula, estimated GFR (creatinine clearance) > 60 ml/min/1.73m2
• Alanine aminotransferase < 3 × ULN
• Bilirubin < 2 × ULN
• Patients who have undergone autologous or allogeneic bone marrow transplant must be at least 3 months from transplant.
• Patients enrolling at total dose levels > 30 millicurie (mCi)/m2 must have availability or ability to collect an autologous hematopoietic stem cell back-up product prior to CLR 131 administration. At minimum, 2 x 10^6/kg cryopreserved CD34+ cells must be available.
• Patient or his or her legal representative is judged by the Investigator to have the initiative and means to be compliant with the protocol. Patients with Pediatric Solid Tumor or Lymphoma
• At least 1 measurable lesion with longest diameter of at least 10 mm. Patients with a lesion(s) that are determined to be Metaiodobenzylguanidine (MIBG) or positron emission tomography (PET) positive may be enrolled at the investigator's discretion, even if not associated with a measurable lesion of at least 10 mm. Patients with neuroblastoma who have detectable disease may enroll provided they meet the requirements of the International Neuroblastoma Response Criteria.
• Patients with known brain metastases must have completed any radiotherapy or systemic treatments for brain metastases prior to enrollment; by investigator assessment be considered stable with no new signs or symptoms for at least 1 month, and on a stable dose of steroids (unchanged for three weeks prior to registration or on a steroid tapering regimen). Patients with Recurrent or Refractory Brain Tumors
• At least 1 measurable lesion with longest diameter of at least 10 mm on any imaging sequence.
• Patients with previously known neurological deficits must be clinically stable at time of enrollment and able to complete all study related procedures. Patients with documented or newly diagnosed neurological deficits will be enrolled at the investigator's discretion.
• If patient receives steroids for neurological symptom control, the dose must be stable (unchanged for three weeks prior to registration) or on a steroid tapering regimen. Initiation of steroids per routine care immediately prior to CLR 131 dosing is acceptable.
• Patients receiving active treatment for central nervous system metastases or those that are likely to require active treatment during anticipated participation in this trial. Patients with stable brain metastases treated with steroids may enroll at the investigator's discretion
• For solid tumor and lymphoma patients only, central nervous system involvement unless previously treated with surgery, systemic therapy, or radiotherapy with the patient neurologically stable. Patients with metastatic brain tumors that have been previously treated are allowed, provided the patient is neurologically stable (determined at the investigator's discretion).
• Antitumor therapy or investigational therapy, within 2 weeks of dosing. For certain types of radiation (craniospinal, total abdominal, whole lung [spot irradiation to skull-based metastases is not considered craniospinal radiation for the purposes of this study]), at least 3 months must have elapsed. No washout is required for palliative focal radiation. NOTE: Patients participating in non-interventional clinical trials (i.e., non-drug) are allowed to participate in this trial
• Patients previously treated with iodine-131 (131I)-MIBG who have already received a cumulative I-131 dose > 54 mCi/kg or who would exceed 54 mCi/kg by participating in this trial, are not eligible.

• Any participant with SMA who received onasemnogene abeparvovec-xioi gene replacement therapy in a Novartis Gene Therapies-sponsored clinical study
• Participant/parent/legal guardian willing and able to complete the informed consent process and comply with study procedures and visit schedule
• Parent/legal guardian unable or unwilling to participate in the long-term follow-up safety study

• Patients with SMA, genetically confirmed on or after 24 May 2018.
• Appropriate consent/assent has been obtained for participation in the registry
•Currently enrolled in an interventional clinical trial involving an investigational medicinal product to treat SMA. Note: Patients that are participating in a Compassionate Use Program (CUP) for AVXS-101 (Zolgensma) such as a Managed Access Program (MAP), an Expanded Access Program (EAP), Single Patient Investigational New Drug (IND) (SPI) or Named Patient Program (NPP) are eligible to enroll in the registry regardless of the date of genetic confirmation of SMA.

Major 1. Men and women 18 years of age or older. 2. 9 cohorts will be enrolled:
• Cohort A1 / Exon 14 NSCLC MET inhibitor naive in first line: Histologically or cytologically confirmed NSCLC with Exon 14 skipping mutations; all histologies; unresectable or metastatic disease (Stage 3b/4); treatment-naive subjects in first line; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort A2 / Exon 14 NSCLC
•MET inhibitor naïve: Histologically or cytologically confirmed NSCLC with Exon 14 skipping mutations; all histologies; unresectable or metastatic disease (Stage 3b/4); pretreated subjects refractory to or intolerant of standard therapies with no more than three lines of prior therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort B / Exon 14 NSCLC MET inhibitor experienced: ENROLLMENT COMPLETED
• Cohort C / MET amplification basket tumor types excluding primary CNS tumors: Any solid tumor type regardless of histology excluding primary CNS tumors, with MET amplification; unresectable or metastatic disease, refractory to or intolerant of standard therapies, or refused standard therapies, or if therapy was unavailable or unfeasible, with no more than 3 prior lines of therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort C1 / MET amplification and wild-type EGFR NSCLC: NSCLC regardless of histology, harboring MET amplification and wild-type EGFR; unresectable or metastatic disease, previously untreated or treated with no more than 3 prior lines of therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort C2 / EGFR positive NSCLC with acquired MET amplification (APL-101 Add-on Therapy): Unresectable or metastatic NSCLC regardless of histology, harboring EGFR activating mutations with acquired MET-Amplification as resistance mechanism to the EGFR-I; developed resistance to first-line EGFR-inhibitor therapy after an initial response (documented PR for at least 12 weeks); radiological documentation of disease progression per RECIST on first-line EGFR inhibitor therapy; currently on an EGFR-inhibitor therapy and agrees to receive APL-101 as an add-on therapy during the study; no history of interstitial lung disease (ILD)/pneumonitis, Grade ≥3 liver toxicity or QT prolongation with EGFR-I therapy; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort D / MET fusion basket tumor types excluding primary CNS tumors: any solid tumor type regardless of histology excluding primary CNS tumors; unresectable or metastatic disease, refractory to or intolerant of standard therapies, or refused standard therapies, or if therapy was unavailable or unfeasible, with no more than 3 prior lines of therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations
• Cohort E / Primary CNS tumors with MET alterations: subjects with primary CNS tumors who meet inclusion criteria of MET dysregulations defined as single or co-occurred MET fusion including PTPRZ1-MET (ZM) fusion, MET Exon 14 skipping mutations, or MET amplification; refractory to or intolerant of standard therapies, or refused standard therapies, or if therapy was unavailable or unfeasible, with no more than 3 prior lines of therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations; neurological symptoms controlled on a stable/decreasing dose of steroids for at least 2 weeks before C1D1
• Cohort F / Basket tumor types harboring wild-type MET with over-expression of HGF and MET: any solid tumor type regardless of histology harboring wild-type MET with overexpression of HGF and MET; Unresectable or metastatic disease, refractory to or intolerant of standard therapies, or refused standard therapies, or if therapy was unavailable or unfeasible, with no more than 3 prior lines of therapy in the unresectable or metastatic setting; not received any MET inhibitor and no known MET kinase inhibitor resistance mutations 3. Treated or untreated asymptomatic parenchymal CNS disease or leptomeningeal disease is allowed. 4. Presence of ≥1 measurable lesion (scan done ≤28 days of C1D1) to serve as target lesion according to relevant criteria 5. ECOG performance status of 0-1. For subjects with primary CNS tumors, KPS score ≥70. 6. Acceptable organ function 7. For all prior anticancer treatment, a duration of 30 days or 5 half-lives of the agents used, whichever is shorter, must have elapsed, and any encountered toxicity must have resolved to levels meeting all the other eligibility criteria prior to the first dose of study treatment. Palliative radiotherapy to non-target lesions should be completed within 2 weeks prior to APL-101 administration. 8. Adequate cardiac function 9. Women of child-bearing potential must have a negative serum or Beta-hCG at screening or evidence of surgical sterility or evidence of post-menopausal status 10. No planned major surgery within 4 weeks of first dose of APL-101 11. Expected survival (life expectancy) ≥ 3 months from C1D1 12. Provision of sample; e.g. archival or a fresh tumor biopsy sample (if safe and feasible) either from the primary or a metastatic site) or liquid biopsy sample (if tumor tissue is insufficient or lacking, and approved by the sponsor) is required for prospective central lab confirmation for study entry (subjects with previously confirmed molecular status by the Sponsor designated central lab or FDA approved NGS based MET testing may be exempted, subjected to Sponsor approval. Major 1. Hypersensitivity to APL-101, excipients of the drug product, or other components of the study treatment regimen. 2. Known actionable mutation/gene rearrangement of EGFR (except for NSCLC subjects in Cohort C and C-2), ALK, ROS1, RET, NTRK, KRAS, and BRAF. 3. Use or intended use of any other investigational product, including herbal medications, through Study Treatment Termination. 4. Active uncontrolled systemic bacterial, viral, or fungal infection or clinically significant, active disease process, which in the opinion of the investigator makes the risk: benefit unfavorable for the participation of the trial. 5. Life-threatening illness, significant organ system dysfunction or comorbid conditions, or other reasons that, in the investigator's opinion, could compromise the subject's safety or the integrity of the study outcomes, or interfere with the absorption or metabolism of APL-101. 6. Unstable angina or myocardial infarction within 1 year prior to first dose of APL-101, symptomatic or unstable arrhythmia requiring medical therapy, history of congenital prolonged QT syndrome, prolonged QT interval corrected by Fridericia formula (QTcF) at screening, or concurrent treatment with a medication that is a known risk for prolonging the QT interval. Chronic controlled atrial fibrillation is not excluded. 7. Historical seropositive results consistent with active infection for hepatitis C virus (HCV) or hepatitis B virus (HBV) with high viral loads not actively managed with antiviral therapy and human immunodeficiency virus (HIV) positive subjects who are not clinically stable or controlled on their medication (asymptomatic subjects with CD4+ T-cell (CD4+) counts ≥ 350 cells/μL and have not had an opportunistic infection within the past 12 months prior to first dose of APL-101 would be eligible for study entry. If history is unclear, relevant test(s) at Screening will be required to confirm eligibility. 8. Known significant mental illness or other conditions such as active alcohol or other substance abuse that, in the opinion of the investigator, predisposes the subject to high risk of noncompliance with the protocol treatment or assessments. 9. Unable to swallow orally administered medication whole. 10. Impairment of gastrointestinal function or gastrointestinal disease that may significantly alter drug absorption 11. Women who are breastfeeding 12. History of another malignancy within 3 years prior to C1D1. A subject with the following malignancies is allowed if considered cured or unlikely to recur within 3 years: 1. Carcinoma of the skin without melanomatous features. 2. Curatively treated cervical carcinoma in situ. 3. Bladder tumors considered superficial such as noninvasive (T1a) and carcinoma in situ (T1s), thyroid papillary cancer with prior treatment, prostate cancer which has been surgically or medically treated and not likely to recur within 3 years. 13. Subjects who are unable or unwilling to discontinue excluded medications (drugs with known QTc risk and known strong cytochrome P450 [CYP]3A4 inducer and/or strong inhibitors) for at least 5 half-lives prior to first dose of study drug. Subjects may qualify if such medication(s) can be safely replaced with alternate medications with less risk of drug-drug interaction. 14. Subjects with active COVID-19 infection. 15. Symptomatic and/or neurologically unstable CNS metastases, or who require an increase in steroid dose to control CNS disease. Subjects who have been receiving a stable steroid dose for at least 2 weeks prior to C1D1 may be allowed.

• Subjects with a PFO who have had an ischemic stroke within the last 547 days
• Atherosclerosis or other arteriopathy of the intracranial and extracranial vessels associated with a ≥ 50% lumen diameter supplying the involved lesion
• Intra-cardiac thrombus or tumor
• Documented evidence of venous thrombus in the vessels through which access to the PFO is gained
• Acute or recent (within 6 months prior to consent) myocardial infarction or unstable angina
• Left ventricular aneurysm or akinesis
• Mitral valve stenosis or severe mitral regurgitation requiring intervention irrespective of etiology
• Aortic valve stenosis (mean gradient >40 mmHg) or severe aortic valve regurgitation
• Mitral or aortic valve vegetation or prosthesis
• Aortic arch plaques protruding greater than 4mm into the aortic lumen
• Left ventricular dilated cardiomyopathy with depressed left ventricular ejection fraction (LVEF less than 35%)
• Subjects with other source of right to left shunts, including an atrial septal defect and/or fenestrated septum
• Chronic, persistent, or paroxysmal atrial fibrillation or atrial flutter
• Pregnancy at the time of implant
• Age less than 18 years or greater than 60 years at time of consent
• Active endocarditis or other untreated infections
• Organ failure (kidney, liver or lung) Kidney failure: Poor urine output of less than 1 cc/kg/hr with elevated BUN levels (above the normal reference range for the laboratory at the investigational site). Liver failure: Liver enzymes outside the normal reference range for the laboratory at the investigational site: poor liver function as assessed by elevated PT (above the normal reference range for the laboratory at the investigational site) and low total protein and albumin (below the normal reference range for the laboratory at the investigational site). Lung failure: Respiratory failure is retention of carbon dioxide more than 60 mmHg, poor oxygenation with oxygen tension less than 40 mmHg in room air or the need for assisted ventilation.
• Uncontrolled hypertension defined as sustained elevated systemic blood pressure to more than 160/90 mmHg with medications
• Uncontrolled diabetes defined as continued elevated glucose levels in spite of administration of insulin/levels of more than 200 mg with presence of glucose in the urine
• Diagnosis of lacunar infarct probably due to intrinsic small vessel as qualifying stroke event Definition: Ischemic stroke in the distribution of a single, small deep penetrating vessel in a patient with any of the following: 1) a history of hypertension (except in the first week post stroke); 2) history of diabetes mellitus; 3) Age >/= 50; or 4) MRI or CT shows leukoaraiosis greater than symmetric, well-defined periventricular caps or bands (European Task Force on Age-Related White Matter Changes rating scale score > 0)
• Arterial dissection as cause of stroke
• Subjects who test positive with one of the following hypercoagulable states; Anticardiolipin Ab of the IgG or IgM (≥30), Lupus anticoagulant, B2-glycoprotein-1 antibodies (≥30) or persistently elevated homocysteine (>20)
• Unable to take antiplatelet therapy
• Anatomy in which the AMPLATZERTM PFO Occluder device size required would interfere with intracardiac or intravascular structures such as valves or pulmonary veins
• Vasculature, through which access to the PFO is gained, is inadequate to accommodate the appropriate sheath size
• Malignancy or other illness where life expectancy is less than 2 years
• Subjects who will not be available for follow-up for the duration of the trial
• Inability to obtain Informed Consent from patient
• Index stroke of poor outcome (modified Rankin score greater than 3)

1. TIA with ABCD2 ≥4 or ischemic stroke, within the prior 14 days. 1. pre-event inability to perform all of own basic ADLs 2. unable to obtain informed consent from subject or legally authorized representative 3. incarcerated 4. known pregnancy 5. current mechanical ventilation (can enroll later if this resolves) or tracheostomy 6. current use of positive airway pressure, or use within one month prior to stroke 7. anatomical or dermatologic anomaly that makes use of CPAP interface unfeasible 8. severe bullous lung disease 9. history of prior spontaneous pneumothorax or current pneumothorax 10. hypotension requiring current treatment with pressors (can enroll later if this resolves) 11. other specific medical circumstances that conceivably, in the opinion of the site PI, could render the patient at risk of harm from use of CPAP 12. massive epistaxis or previous history of massive epistaxis 13. cranial surgery or head trauma within the past 6 months, with known or possible CSF leak or pneumocephalus 14. recent hemicraniectomy or suboccipital craniectomy (i.e. those whose bone has not yet been replaced), or any other recent bone removal procedure for relief of intracranial pressure 15. current receipt of oxygen supplementation >4 liters per minute 16. current contact, droplet, respiratory/airborne precautions

• B-ALL and MPAL patients must be enrolled on APEC14B1 and consented to eligibility studies (Part A) prior to treatment and enrollment on AALL1732. Note that central confirmation of MPAL diagnosis must occur within 22 days of enrollment for suspected MPAL patients. If not performed within this time frame, patients will be taken off protocol.
• APEC14B1 is not a requirement for B-LLy patients but for institutional compliance every patient should be offered participation in APEC14B1. B-LLy patients may directly enroll on AALL1732.
• Patients must be > 365 days and < 25 years of age
• White blood cell count (WBC) criteria for patients with B-ALL (within 7 days prior to the start of protocol-directed systemic therapy):
• Age 1-9.99 years: WBC >= 50,000/uL
• Age 10-24.99 years: Any WBC
• Age 1-9.99 years: WBC < 50,000/uL with:
• Testicular leukemia
• CNS leukemia (CNS3)
• Steroid pretreatment.
• White blood cell count (WBC) criteria for patients with MPAL (within 7 days prior to the start of protocol-directed systemic therapy):
• Age 1-24.99 years: any WBC NOTE: Patients enrolled as suspected MPAL but found on central confirmatory testing to have B-ALL must meet the B-ALL criteria above (age, WBC, extramedullary disease, steroid pretreatment) to switch to the B-ALL stratum before the end of induction.
• Patient has newly diagnosed B-ALL or MPAL (by World Health Organization [WHO] 2016 criteria) with >= 25% blasts on a bone marrow (BM) aspirate;
• OR If a BM aspirate is not obtained or is not diagnostic of acute leukemia, the diagnosis can be established by a pathologic diagnosis of acute leukemia on a BM biopsy;
• OR A complete blood count (CBC) documenting the presence of at least 1,000/uL circulating leukemic cells if a bone marrow aspirate or biopsy cannot be performed.
• Patient has newly diagnosed B-LLy Murphy stages III or IV.
• Patient has newly diagnosed B-LLy Murphy stages I or II with steroid pretreatment.
• Note: For B-LLy patients with tissue available for flow cytometry, the criterion for diagnosis should be analogous to B-ALL. For tissue processed by other means (i.e., paraffin blocks), the methodology and criteria for immunophenotypic analysis to establish the diagnosis of B-LLy defined by the submitting institution will be accepted.
• Central nervous system (CNS) status must be determined prior to enrollment based on a sample obtained prior to administration of any systemic or intrathecal chemotherapy, except for steroid pretreatment and cytoreduction. It is recommended that intrathecal cytarabine be administered at the time of the diagnostic lumbar puncture. This is usually done at the time of the diagnostic bone marrow or venous line placement to avoid a second lumbar puncture. This is allowed prior to enrollment. Systemic chemotherapy must begin within 72 hours of this intrathecal therapy.
• All patients and/or their parents or legal guardians must sign a written informed consent.
• All institutional, Food and Drug Administration (FDA), and NCI requirements for human studies must be met.
• Patients with Down syndrome are not eligible (patients with Down syndrome and B-ALL are eligible for AALL1731, regardless of NCI risk group).
• With the exception of steroid pretreatment and steroid cytoreduction or the administration of intrathecal cytarabine, patients must not have received any prior cytotoxic chemotherapy for the current diagnosis of B-ALL, MPAL, or B-LLy or for any cancer diagnosed prior to initiation of protocol therapy on AALL1732.
• Patients who have received > 72 hours of hydroxyurea within one week prior to start of systemic protocol therapy.
• Patients with B-ALL or MPAL who do not have sufficient diagnostic bone marrow submitted for APEC14B1 testing and who do not have a peripheral blood sample submitted containing > 1,000/uL circulating leukemia cells.
• Patients with acute undifferentiated leukemia (AUL) are not eligible.
• For Murphy stage III/IV B-LLy patients, or stage I/II patients with steroid pretreatment, the following additional exclusion criteria apply:
• T-lymphoblastic lymphoma.
• Morphologically unclassifiable lymphoma.
• Absence of both B-cell and T-cell phenotype markers in a case submitted as lymphoblastic lymphoma.
• Patients with known Charcot-Marie-Tooth disease.
• Patients with known MYC translocation associated with mature (Burkitt) B-cell ALL, regardless of blast immunophenotype.
• Patients requiring radiation at diagnosis.
• Female patients who are pregnant, since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential.
• Lactating women who plan to breastfeed their infants while on study and for 2 months after the last dose of inotuzumab ozogamicin.
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of study participation. For those patients randomized to inotuzumab ozogamicin, there is a minimum of 8 months after the last dose of inotuzumab ozogamicin for females and 5 months after the last dose of inotuzumab ozogamicin for males.

• Patient must have enrolled onto APEC1621SC and must have been given a treatment assignment to Molecular Analysis for Therapy Choice (MATCH) to APEC1621F based on the presence of an actionable mutation
• Patients must be >= than 12 months and =< 21 years of age at the time of study enrollment.
• Patients must have a body surface area >= 0.5 m^2 at enrollment
• Patients must have radiographically measurable disease at the time of study enrollment. Patients with neuroblastoma who do not have measurable disease but have iobenguane (MIBG) positive (+) evaluable disease are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on a standard MRI or CT
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or cerebrospinal fluid (CSF)
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
• Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age
• Note: Neurologic deficits in patients with CNS tumors must have been relatively stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• Patients must have fully recovered from the acute toxic effects of all prior anti-cancer therapy and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment; if after the required timeframe, the numerical eligibility criteria are met, e.g. blood count criteria, the patient is considered to have recovered adequately
• Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive: >= 21 days after the last dose of cytotoxic or myelosuppressive chemotherapy (42 days if prior nitrosourea)
• Anti-cancer agents not known to be myelosuppressive (e.g. not associated with reduced platelet or absolute neutrophil counts [ANC] counts): >= 7 days after the last dose of agent
• Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
• Corticosteroids: if used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g. pegfilgrastim) or 7 days for short-acting growth factor; for growth factors that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair and the study-assigned research coordinator
• Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
• Stem cell Infusions (with or without total body irradiation [TBI]):
• Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusion (DLI) or boost infusion: >= 84 days after infusion and no evidence of graft versus host disease (GVHD)
• Autologous stem cell infusion including boost infusion: >= 42 days
• Cellular therapy: >= 42 days after the completion of any type of cellular therapy (e.g. modified T cells, natural killer [NK] cells, dendritic cells, etc.)
• Radiation therapy (XRT)/external beam irradiation including protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial none marrow (BM) radiation
• Note: Radiation may not be delivered to "measurable disease" tumor site(s) being used to follow response to subprotocol treatment
• Radiopharmaceutical therapy (e.g., radiolabeled antibody, 131I-MIBG): >= 42 days after systemically administered radiopharmaceutical therapy
• Patients must not have received prior exposure to ensartinib; prior treatment with other ALK inhibitors is permitted given that at least 5 half-lives or 21 days have elapsed since therapy discontinuation, whichever is greater
• For patients with solid tumors without known bone marrow involvement:
• Peripheral absolute neutrophil count (ANC) >= 1000/mm^3 (within 7 days prior to enrollment)
• Platelet count >= 100,000/mm^3 (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment) (within 7 days prior to enrollment)
• Patients with known bone marrow metastatic disease will be eligible for study provided they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions); these patients will not be evaluable for hematologic toxicity
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 ml/min/1.73 m^2 (within 7 days prior to enrollment) or a serum creatinine based on age/gender as follows (within 7 days prior to enrollment):
• Age 1 to < 2 years: maximum serum creatinine 0.6 mg/dL for male and 0.6 mg/dL for female
• Age 2 to < 6 years: maximum serum creatinine 0.8 mg/dL for male and 0.8 mg/dL for female
• Age 6 to < 10 years: maximum serum creatinine 1 mg/dL for male and 1 mg/dL for female
• Age 10 to < 13 years: maximum serum creatinine 1.2 mg/dL for male and 1.2 mg/dL for female
• Age 13 to < 16 years: maximum serum creatinine 1.5 mg/dL for male and 1.4 mg/dL for female
• Age >= 16 years: maximum serum creatinine 1.7 mg/dL for male and 1.4 mg/dL for female
• Bilirubin (sum of conjugated + unconjugated) =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment)
• Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L (within 7 days prior to enrollment) (for the purpose of this study, the ULN for SGPT is 45 U/L)
• Serum albumin >= 2 g/dL (within 7 days prior to enrollment)
• Patients must be able to swallow intact capsules
• All patients and/or their parents or legally authorized representatives must sign a written informed consent; assent, when appropriate, will be obtained according to institutional guidelines
• Pregnant or breast-feeding women will not be entered on this study because there is currently no available information regarding human fetal or teratogenic toxicities; pregnancy tests must be obtained in girls who are post-menarchal; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method for the duration of study treatment and for one week after the last dose of ensartinib
• Concomitant medications
• Corticosteroids: patients receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are not eligible; if used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Investigational drugs: patients who are currently receiving another investigational drug are not eligible
• Anti-cancer agents: patients who are currently receiving other anti-cancer agents are not eligible
• Anti-GVHD agents post-transplant: patients who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post bone marrow transplant are not eligible for this trial
• CYP3A4 agents: patients who are currently receiving drugs that are strong inducers or strong inhibitors of CYP3A4 are not eligible; strong inducers or inhibitors of CYP3A4 should be avoided from 14 days prior to enrollment to the end of the study
• Note: CYP3A4 inducing anti-epileptic drugs and dexamethasone for CNS tumors or metastases, on a stable dose, are allowed
• Patients who have an uncontrolled infection are not eligible
• Patients who have received a prior solid organ transplantation are not eligible
• Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible

• PRIOR TO STEP 1 REGISTRATION:
• The patient must have a newly diagnosed unifocal intracranial meningioma, gross totally resected, and histologically confirmed as WHO grade II based upon pathology findings at the enrolling institution; WHO grade will be assigned according to WHO 2016 criteria
• Gross total resection (GTR) will be interpreted as modified Simpson grade 1-3 without gross residual dural-based or extradural tumor; GTR must be confirmed both by modified Simpson grade and by post-operative magnetic resonance imaging (MRI) findings
• Step 1 registration must occur within 180 days of the initial surgery; within this 180 day interval, a second surgery is permitted in order to achieve GTR, but even with a second surgery, step 1 registration must occur within 180 days of the initial resection
• For step 1 registration the operating neurosurgeon must provide the modified Simpson grade
• GTR must be confirmed on post-operative imaging following the most recent surgery; submission of both pre-operative and post-operative MRIs is required for patients; if a second surgery is performed, submission of post-operative MRI is required and pre-operative MRI is required only if obtained; all sequences obtained in the pre- and post-operative MR imaging are to be submitted to National Radiology Group (NRG) Oncology for study registration; imaging subsequent to enrollment must include pre and post gadolinium contrast-enhanced three-dimensional spoiled gradient (SPGR), magnetization-prepared rapid gradient echo (MP-RAGE), or turbo field echo (TFE) MRI scan and an axial T2 fluid attenuated inversion recovery (FLAIR) sequence; to yield acceptable image quality, the gadolinium contrast-enhanced three-dimensional SPGR, MP-RAGE, or TFE axial MRI scan should use the smallest possible axial slice thickness not exceeding 1.5 mm; the post-operative MRI must be completed within sufficient time to permit step 1 registration within 180 days of the initial resection; these same conditions apply in the setting of a second surgical procedure, although if a second surgery is completed, step 1 registration must still occur with 180 days of initial surgery; computed tomography (CT) imaging is not required, but may be obtained if desired clinically, for instance to assess calcifications or hyperostosis
• The patient or a legally authorized representative must provide study-specific informed consent prior to study entry
• If the patient is a primary English speaker, the patient must participate in the NCF and patient reported outcomes part of the study; if the patient is a primary French or Spanish speaker, the patient must participate in the patient reported outcomes part of the study
• NOTE: Central pathology review must occur between steps 1 and 2 of registration; once appropriate pathology specimens are received, central pathology review will occur within 15 days, and must confirm WHO grade II meningioma before the patient can proceed to step 2 registration and randomization
• PRIOR TO STEP 2 REGISTRATION:
• Histologically confirmed diagnosis of WHO grade II meningioma confirmed by central pathology review prior to step 2 registration
• History/physical examination, including neurologic examination within 60 days prior to step 2 registration
• Post-operative Zubrod performance status 0-1 within 60 days prior to step 2 registration
• If the patient is a woman is of childbearing potential, a serum pregnancy test, obtained within 14 days prior to step 2 registration, must be negative, and, if randomized to receive radiation therapy, the woman must agree to use contraception
• Optic nerve sheath meningioma, spinal or other extracranial meningioma, multiple meningiomas, hemangiopericytoma
• Definitive evidence of metastatic meningioma
• Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years (carcinoma in situ of the breast, oral cavity, cervix, melanoma in situ, or other non-invasive malignancies are permissible)
• Previous radiotherapy to the scalp, cranium, brain, or skull base and radiation-induced meningiomas
• Major medical illnesses or psychiatric impairments, which in the investigators opinion, will prevent administration or completion of the protocol therapy and/or preclude informed consent; these include, but are not restricted to:
• Unstable angina and/or congestive heart failure requiring hospitalization at the time of step 2 registration
• Transmural myocardial infarction within the last 6 months prior to step 2 registration
• Acute bacterial or fungal infection requiring intravenous antibiotics at the time of step 2 registration
• Chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of step 2 registration
• Type II neurofibromatosis (NF2)
• Ailments entailing substantial increases in sensitivity and side effect risk from radiation therapy (ataxia telangiectasia, Nijmegen breakage syndrome, and human immunodeficiency virus (HIV) with CD4 count < 200 cells/microliter); HIV testing is not required for eligibility for this protocol, and known HIV positive patients are eligible, provided they are under treatment with highly active antiretroviral therapy (HAART) and have a CD4 count >= 200 cells/microliter within 30 days prior to step 2 registration
• Inability to undergo MRI with and without contrast (e.g. claustrophobia, non-MRI compatible implant or foreign body, etc) or receive gadolinium; note that patients with severe claustrophobia are permitted on this study if they are willing and able to undergo MRI with adequate sedation or anesthesia
• Pregnancy and/or nursing females

• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients must be >= 12 months and =< 21 years of age at the time of study enrollment
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients with recurrent or refractory solid tumors, including non-Hodgkin lymphomas, histiocytoses (e.g. langerhans cell histiocytosis [LCH], juvenile xanthogranuloma [JXG], histiocytic sarcoma), and central nervous system (CNS) tumors are eligible; patients must have had histologic verification of malignancy at original diagnosis or relapse except in patients with intrinsic brain stem tumors, optic pathway gliomas, or patients with pineal tumors and elevations of cerebrospinal fluid (CSF) or serum tumor markers including alpha-fetoprotein or beta-human chorionic gonadotropin (HCG); in cases where patient enrolls prior to histologic confirmation of recurrent disease, patient is ineligible and should be withdrawn from study if histology fails to confirm recurrence; please note: Patients with Hodgkin lymphoma and plexiform neurofibroma are not eligible
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Tumor Testing Requirement: Tumor sample availability requirement for stage 1 of Pediatric MATCH (patients enrolled from start of study in July 2017 through 12/31/21); Patients must have an formalin-fixed paraffin-embedded (FFPE) tumor sample available for MATCH study testing from a biopsy or surgery that was performed at any point after initial tumor recurrence/progression, or be planned to have a procedure to obtain such a sample that is considered to be of potential benefit by the treating clinicians; a tumor sample from a clinically performed diagnostic (pre-treatment) biopsy will be acceptable for enrollment onto Pediatric MATCH only for children with high-grade gliomas of the brainstem (diffuse intrinsic pontine gliomas) or thalamus
• Please note: Samples that have been decalcified using standardly utilized acid-based decalcification methods are not generally suitable for MATCH study testing; the nucleic acids will have been degraded in the decalcification process
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Tumor molecular profiling report availability requirement for Stage 2 of Pediatric MATCH (patients enrolled starting 2022): In stage 2 of the study, no tumor samples will be submitted for centralized clinical tumor profiling; instead, a tumor molecular profiling report from a College of American Pathologists (CAP)/ Clinical Laboratory Improvements Amendments (CLIA)-approved testing laboratory must be submitted for review by the Molecular Review Committee (MRC)
• This molecular profiling must have been performed on a tumor sample that was obtained at any point after initial tumor recurrence/progression and must be accompanied by a pathology report for the same tumor specimen; a molecular profiling report for a diagnostic (pre-treatment) tumor sample will be acceptable for enrollment onto Pediatric MATCH only for children with high-grade gliomas of the brainstem (diffuse intrinsic pontine gliomas) or thalamus. In the event that molecular profiling reports are available from multiple timepoints, the most recent report should be prioritized for study submission
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age); note: neurologic deficits in patients with central nervous system (CNS) tumors must have been stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• ELIGIBILITY CRITERIA FOR ENROLLMENT ONTO APEC1621SC: Patients must have radiographically measurable disease; measurable disease based on imaging obtained less than or equal to 56 days prior to enrollment; patients with neuroblastoma who do not have measurable disease but have metaiodobenzylguanidine (MIBG) positive (+) evaluable disease are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on standard magnetic resonance imaging (MRI) or computed tomography (CT)
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or CSF
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for Response Evaluation Criteria in Solid Tumors (RECIST) 1.1
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: NOTE: patient does not need to meet all subprotocol criteria at time of enrollment onto the APEC1621SC screening protocol, but will need to meet all criteria prior to enrollment on any assigned treatment subprotocol. Patients must be enrolled onto a subprotocol within 2 weeks (14 days) of treatment assignment
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Karnofsky >= 50% for patients > 16 years of age and Lansky >= 50 for patients =< 16 years of age); Note: neurologic deficits in patients with CNS tumors must have been stable for at least 7 days prior to study enrollment; patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: At the time of treatment with subprotocol specified therapy, the patients must have radiographically measurable disease; patients with neuroblastoma who do not have measurable disease but have MIBG+ evaluable are eligible; measurable disease in patients with CNS involvement is defined as any lesion that is at minimum 10 mm in one dimension on standard MRI or CT
• Note: The following do not qualify as measurable disease:
• Malignant fluid collections (e.g., ascites, pleural effusions)
• Bone marrow infiltration except that detected by MIBG scan for neuroblastoma
• Lesions only detected by nuclear medicine studies (e.g., bone, gallium or positron emission tomography [PET] scans) except as noted for neuroblastoma
• Elevated tumor markers in plasma or CSF
• Previously radiated lesions that have not demonstrated clear progression post radiation
• Leptomeningeal lesions that do not meet the measurement requirements for RECIST 1.1
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: At the time of enrollment onto a subprotocol, the following general criteria for initiation of therapy will be required:
• Patients must have fully recovered from the acute toxic effects of all prior anticancer therapy and must meet the following minimum duration from prior anticancer directed therapy prior to enrollment to the subprotocol; if after the required timeframe, the numerical eligibility criteria are met, e.g. blood count criteria, the patient is considered to have recovered adequately
• Cytotoxic chemotherapy or other anticancer agents known to be myelosuppressive: for agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned research coordinator prior to enrollment >= 21 days after the last dose of cytotoxic or myelosuppressive chemotherapy (42 days if prior nitrosourea)
• Anticancer agents not known to be myelosuppressive (e.g. not associated with reduced platelet or absolute neutrophil counts [ANC]): >= 7 days after the last dose of agent; for agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned research coordinator prior to enrollment
• Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
• Corticosteroids: If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g. Neulasta) or 7 days for short-acting growth factor; for agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur; the duration of this interval must be discussed with the study chair and the study-assigned research coordinator
• Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
• Stem cell infusions (with or without total-body irradiation [TBI]):
• Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusion (DLI) or boost infusion: >= 84 days after infusion and no evidence of graft versus host disease (GVHD)
• Autologous stem cell infusion including boost infusion: >= 42 days
• Cellular therapy: >= 42 days after the completion of any type of cellular therapy (e.g. modified T cells, natural killer (NK) cells, dendritic cells, etc.)
• X-ray therapy (XRT)/External Beam Irradiation including Protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial bone marrow (BM) radiation; note: radiation may not be delivered to "measurable disease" tumor site(s) being used to follow response to subprotocol treatment
• Radiopharmaceutical therapy (e.g., radiolabeled antibody, 131I-MIBG): >= 42 days after systemically administered radiopharmaceutical therapy
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: For patients with solid tumors without known bone marrow involvement:
• Peripheral absolute neutrophil count (ANC) >= 1000/mm^3
• Platelet count >= 100,000/mm^3 (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment)
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Patients with known bone marrow metastatic disease will be eligible for study provided they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions); these patients will not be evaluable for hematologic toxicity
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 ml/min/1.73 m^2 or a serum creatinine based on age/gender as follows:
• Age: 1 to < 2 years; maximum serum creatinine (mg/dL): male 0.6; female 0.6
• Age: 2 to < 6 years; maximum serum creatinine (mg/dL): male 0.8; female 0.8
• Age: 6 to < 10 years; maximum serum creatinine (mg/dL): male 1; female 1
• Age: 10 to < 13 years; maximum serum creatinine (mg/dL): male 1.2; female 1.2
• Age: 13 to < 16 years; maximum serum creatinine (mg/dL): male 1.5; female 1.4
• Age: >= 16 years; maximum serum creatinine (mg/dL): male 1.7; female 1.4
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Bilirubin (sum of conjugated + unconjugated) =< 1.5 x upper limit of normal (ULN) for age
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Serum glutamate pyruvate transaminase (SGPT) (alanine transferase [ALT]) =< 135 U/L (for the purpose of this study, the ULN for SGPT is 45 U/L)
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Patients must be able to swallow intact capsules/tablets, unless otherwise specified in the subprotocol to which they are assigned
• GENERAL INCLUSION CRITERIA FOR SUBPROTOCOLS: Agent specific limitations on prior therapy will be included with specific treatment subprotocols
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Pregnant or breast-feeding women will not be entered on this study due to risks of fetal and teratogenic adverse events as seen in animal/human studies, or because there is currently no available information regarding human fetal or teratogenic toxicities; pregnancy tests must be obtained in females who are post-menarchal; males or females of reproductive potential may not participate unless they have agreed to use an effective contraceptive method
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Concomitant medications
• Corticosteroids: at the time of consent and enrollment to regimen specific subprotocols, patients receiving corticosteroids who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment to the subprotocol will not be eligible; if used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
• Investigational drugs: patients must meet criteria for prior therapy at the time of consent and enrollment to a subprotocol; other investigational agents may not be administered to patients while they are receiving study drug as part of a subprotocol
• Anticancer agents: patients must meet criteria for prior therapy at the time of consent and enrollment to a subprotocol; other investigational agents may not be administered to patients while they are receiving study drug as part of a subprotocol
• Anti-GVHD agents post-transplant: patients who are receiving cyclosporine, tacrolimus or other agents to prevent graft-versus-host disease post bone marrow transplant are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Patients who have an uncontrolled infection are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Patients who have had a prior solid organ transplant are not eligible
• GENERAL EXCLUSION CRITERIA FOR SUBPROTOCOLS: Additional agent specific criteria will be included with specific treatment subprotocols

• There is no age limit for the low risk stratum (stage I ovarian immature teratoma and stage I non-seminoma or seminoma malignant GCT [all sites])
• Standard risk 1: Patient must be < 11 years of age at enrollment
• Standard risk 2: Patients must be >= 11 and < 25 years of age at enrollment
• Patients enrolling on one of the low risk arms must be newly diagnosed with a stage I germ cell tumor; for the standard risk arms, patients must be newly diagnosed with metastatic germ cell tumor (stage II or higher); histologic confirmation of a primary extracranial germ cell tumor in any of the categories outlined below is required of all patients at enrollment except for those who were initially diagnosed with stage I non-seminoma malignant GCT and later recur during observation post surgery off study; for these patients, if elevated tumor markers rise to > 5 x upper limit of normal (ULN) on at least 2 measurements taken at least 1 week apart, a diagnostic biopsy is not required for enrollment
• Low risk stage I immature teratoma (IT); site: ovarian; stage: Children's Oncology Group (COG) stage I, Federation of Gynecology and Obstetrics (FIGO) stage IA and IB; grade: 2 or 3; histology: pure immature teratoma (may contain microscopic foci of yolk sac tumor), mixed immature and mature teratoma, (no pathological evidence of MGCT); tumor markers: alpha-FP =< 1,000 ng/mL, beta-HCG institutional normal; all ages
• Low risk stage I non-seminoma MGCT; site: ovarian, testicular, or extragonadal; stage: COG stage I, FIGO stage IA and IB, American Joint Committee on Cancer (AJCC) testicular stage IA, IB and IS; histology: must contain at least one of the following: yolk sac tumor, embryonal carcinoma, or choriocarcinoma (pure or mixed); all ages
• Low risk stage I seminoma-MGCT; site: testicular; stage: COG stage I; AJCC testicular stage IA IB, and IS; histology: must contain at least one of the following: may contain immature/mature teratoma; may NOT contain yolk sac tumor, embryonal carcinoma, or choriocarcinoma; all ages
• Standard risk 1 (SR1); site: ovarian, testicular, or extragonadal; stage: COG stage II-IV, FIGO stage IC, FIGO stage II-IV (International Germ Cell Consensus Classification [IGCCC] criteria DO NOT apply); histology: must contain at least one of the following: yolk sac tumor, embryonal carcinoma, or choriocarcinoma; age (years) < 11
• Standard risk 2 (SR2)
• Site: ovarian; stage: COG stage II and III, FIGO stage IC, II and III; histology: must contain at least one of the following: yolk sac tumor, embryonal carcinoma, or choriocarcinoma; age (years) >= 11 and < 25
• Site: testicular; stage: COG stage II-IV, AJCC stage II, III, IGCCC good risk; histology: must contain at least one of the following: yolk sac tumor, embryonal carcinoma, or choriocarcinoma; tumor markers: must be IGCCC good risk; post op: alpha-FP < 1,000 ng/mL, beta-HCG < 5,000 IU/mL and lactate dehydrogenase (LDH) < 3.0 x normal; age (years) >= 11 and < 25
• Site: extragonadal; stage: COG stage II; histology: must contain at least one of the following: yolk sac tumor, embryonal carcinoma, or choriocarcinoma; age (years) >= 11 and < 25
• Notes:
• IGCCC criteria only apply to SR2 patients with a testicular primary tumor
• Use post-op tumor marker levels to determine IGCCC risk group
• Stage 1 seminoma patients are not eligible for the standard risk arms of the study
• For the low risk stage I non-seminoma MGCT and the standard risk arms, components of yolk sac tumor, embryonal carcinoma, or choriocarcinoma can be mixed with other forms of GCT, such as seminoma or mature or immature teratoma; if yolk sac tumor is the only malignant component present, then it must be deemed by the pathologist to be greater than a "microscopic component" of yolk sac tumor
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, 2 or 3; use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age
• Organ function requirements apply ONLY to patients who will receive chemotherapy (SR1 and SR2 patients)
• Adequate renal function defined as:
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 (within 7 days prior to enrollment) OR
• A serum creatinine based on age/gender as follows (within 7 days prior to enrollment): (mg/dL)
• 1 month to < 6 months male: 0.4 female: 0.4
• 6 months to < 1 year male: 0.5 female: 0.5
• 1 to < 2 years male: 0.6 female: 0.6
• 2 to < 6 years male: 0.8 female: 0.8
• 6 to < 10 years male: 1 female: 1
• 10 to < 13 years male: 1.2 female: 1.2
• 13 to < 16 years: male: 1.5 female: 1.4
• >= 16 years male: 1.7 female: 1.4
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment)
• Serum glutamic-oxaloacetic transaminase (SGOT) (aspartate aminotransferase [AST]) or serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) < 2.5 x upper limit of normal (ULN) for age (for the purpose of this study, the ULN for SGPT is 45 U/L) (within 7 days prior to enrollment)
• Peripheral absolute neutrophil count (ANC) >= 1,000/mm^3 (within 7 days prior to enrollment) AND
• Platelet count >= 100,000/mm^3 (within 7 days prior to enrollment)
• Patients enrolling on the standard risk arms must be medically fit to receive protocol treatment and with no contraindications to protocol treatment
• Eligibility criteria to participate in the pilot study of the AYA-Hears instrument (patient reported outcomes [PROs] of ototoxicity) Note: participants in group 1 will not receive AGCT1531 protocol-directed therapy; all other AYA-HEARS patients must be enrolled on the AGCT1531 SR2 arm in order to participate
• >= 11 and < 25 years old at enrollment
• Able to fluently speak and read English
• Has received prior cisplatin- or carboplatin-based chemotherapy regimen for malignancy including diagnoses other than germ cell tumor
• Followed for cancer or survivorship care at one of the following institutions:
• Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center
• Dana Farber/Harvard Cancer Center
• Hospital for Sick Children
• Children's Hospital of Eastern Ontario
• Oregon Health and Science University
• Seattle Children's Hospital
• Yale University
• Patients with any diagnoses not listed including:
• Stage I testicular cancer patients who have undergone primary RPLND (retroperitoneal lymph node dissection)
• Pure dysgerminoma
• Pure mature teratoma
• Pure immature teratoma COG stage I, grade I
• Pure immature teratoma COG stage I, grade 2,3 with alpha-fetoprotein (AFP) >= 1000 ng/mL
• Pure immature teratoma COG stage II
•IV or FIGO stage IC to IV
• "Poor risk" GCT (age >= 11 years old and COG stage IV ovarian, COG stage III or IV EG, or IGCCC intermediate or poor risk testicular), or
• Primary central nervous system (CNS) germ cell tumor
• Germ cell tumor with somatic malignant transformation
• Spermatocytic seminoma
• Patients must have had no prior systemic therapy for the current cancer diagnosis
• Patients must have had no prior radiation therapy with the exception of CNS irradiation of brain metastases; (this exception only applies to SR1 patients; any patients over age 11 with distant metastases to brain [stage IV disease] would be considered poor risk and therefore not eligible for this trial)
• Patients with significant, pre-existing co-morbid respiratory disease that contraindicate the use of bleomycin are ineligible for the standard risk arms of the trial
• Female patients who are pregnant since fetal toxicities and teratogenic effects have been noted for several of the study drugs; a pregnancy test is required for female patients of childbearing potential; (this criteria applies ONLY to patients who will receive chemotherapy [SR1 and SR2 patients])
• Lactating females who plan to breastfeed their infants; (this criteria applies ONLY to patients who will receive chemotherapy [SR1 and SR2 patients])
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation; (this criteria applies ONLY to patients who will receive chemotherapy [SR1 and SR2 patients])

• Enrollment must occur within 6 months of initial disease presentation OR within 6 months of refractory disease, disease progression, disease recurrence, second or secondary malignancy, or post-mortem
• Patients previously enrolled on ACCRN07 are eligible to enroll on Tracking Outcome, Registry and Future Contact components of APEC14B1 any time after they reach age of majority
• Patients with a known or suspected neoplasm that occurs in the pediatric, adolescent or young adult populations are eligible for enrollment as follows:
• All cancer cases with an International Classification of Diseases for Oncology (ICD-O) histologic behavior code of one "1" (borderline), two "2" (carcinoma in situ) or three "3" (malignant)
• All neoplastic lesions of the central nervous system regardless of behavior, i.e., benign, borderline or malignant
• The following other benign/borderline conditions:
• Mesoblastic nephroma
• Teratomas (mature and immature types)
• Myeloproliferative diseases including transient myeloproliferative disease
• Langerhans cell histiocytosis
• Lymphoproliferative diseases
• Desmoid tumors
• Gonadal stromal cell tumors
• Neuroendocrine tumors including pheochromocytoma
• Melanocytic tumors, except clearly benign nevi
• Ganglioneuromas
• Subjects must be =< 25 years of age at time of original diagnosis, except for patients who are being screened specifically for eligibility onto a COG (or COG participating National Clinical Trials Network [NCTN]) therapeutic study, for which there is a higher upper age limit
• All patients or their parents or legally authorized representatives must sign a written informed consent and agree to participate in at least one component of the study; parents will be asked to sign a separate consent for their own biospecimen submission
• If patients or their parents or legally authorized representatives have not signed the Part A subject consent form at the time of a diagnostic bone marrow procedure, it is recommended that they initially provide consent for drawing extra bone marrow using the Consent for Collection of Additional Bone Marrow; consent using the Part A subject consent form must be provided prior to any other procedures for eligibility screening or banking under APEC14B1

• Stratum I
• Patients must be less than 18 years of age at the time of diagnosis.
• Patients must have histological verification of the diagnosis of Langerhans cell histiocytosis according to the criteria described in Section 6.1
• Signed informed consent form
• Stratum II
• Patients of Stratum I who have:
• Progressive disease (AD worse) in non-risk organs after 6 weeks (Initial Course
• AD intermediate or worse in non-risk organs or AD better in risk organs after 12 weeks (Initial Course 2)
• Disease progression (AD worse) in non-risk organs at any time during continuation treatment
• Active disease at the end of Stratum I treatment
• Disease reactivation in non-risk organs at any time after completion of Stratum I treatment
• Stratum III
• Patients from Stratum I who fulfill the following criteria:
• AD worse in risk organs after week 6 (after Initial Course 1), or AD worse or AD intermediate in risk organs after week 12 (after Initial Course 2).
• Presence of unequivocally severe organ dysfunction at the above mentioned evaluation points (hematological dysfunction, liver dysfunction, or both of them) as
• Hb <70 g/L (<7.0 g/dl) and/or transfusion dependency
• PLT <20 x109/L (20,000/μL) and/or transfusion dependency (both criteria have to be fulfilled) AND/OR
• Liver dysfunction (or digestive involvement with protein loss)
• Total protein <55 g/L or substitution dependency
• Albumin <25 g/L or substitution dependency (at least one of the two criteria to be fulfilled)
• Stratum IV
• Patients from Stratum I or Stratum III who fulfill the following criteria:
• AD worse in risk organs after week 6 (after Initial Course 1), or AD worse or AD intermediate in risk organs after week 12 (after Initial Course 2) of Stratum I OR
• AD worse after the 2nd and 3rd 2-CdA/Ara-C course, and those AD worse or AD intermediate after the 4th 2-CdA/Ara-C course of Stratum III AND
• Presence of unequivocally severe organ dysfunction at the above mentioned evaluation points (hematological dysfunction, liver dysfunction, or both of them) as defined in Table XI (see Section 10.3.1).
• Informed consent: All patients or their legal guardians (if the patient is <18 years of age) must sign an Ethics or institutional Review Board approved consent form indicating their awareness of the investigational nature and the risks of this study. When appropriate, younger patients will be included in all discussions in order to obtain assent.
• Adequate organ function: Patients should have adequate hepatic, renal, cardiac and pulmonary function to undergo reduced intensity HCT based upon local institutional guidelines, or at a minimum meet requirements noted in eligibility checklist Appendix A-VIII_1. However, significant hepatic and pulmonary dysfunction, if secondary to underlying LCH disease activity, will not exclude patients from protocol enrollment and should be discussed with the National PI Coordinator and the Coordinating Principal Investigator.
• Stratum V
• All patients with verified diagnosis of LCH and MRI findings consistent with ND-CNSLCH irrespective of previous treatments (also those not registered to other Strata ofLCH-IV).
• Patients with isolated tumorous CNS-LCH (including isolated DI with mass lesion in the hypothalamus-pituitary axis). In patients with already established diagnosis of LCH and radiologic finding of CNS lesions compatible with LCH, a biopsy of the lesion is not obligatory. In all other cases a biopsy of the lesion is needed for inclusion into the study
• Stratum VI -- Patients with newly diagnosed SS-LCH and localization other than "multifocal bone",isolated tumorous CNS lesion, or isolated "CNS-risk" lesion.
• Stratum VII -- All patients registered in LCH IV (regardless of treatment) as long as consent for longterm follow-up has not been withheld.
• Stratum I
• Pregnancy (patients of child-bearing age must be appropriately tested before chemotherapy)
• LCH-related permanent consequences (e.g. vertebra plana, sclerosing cholangitis, lung fibrosis, etc.) in the absence of active disease
• Prior systemic therapy
• Stratum II
• Patients with progressive disease in risk organs
• Permanent consequences (e.g. sclerosing cholangitis, lung fibrosis, etc.) without evidence of active LCH in the same organ or in any other locations
• No written consent of the patient or his/her parents or legal guardian
• Stratum III
• The presence of any of the following criteria will exclude the patient from the study:
• Isolated sclerosing cholangitis without evidence of active hepatic LCH as the only evidence of risk organ involvement.
• Inadequate renal function as defined by serum creatinine > 3x normal for age
• Stratum IV
• Pulmonary failure (requiring mechanical ventilation) not due to active LCH.
• Isolated liver sclerosis or pulmonary fibrosis, without active LCH.
• Uncontrolled active life-threatening infection.
• Decreased renal function with a GFR of less than 50ml/1.73m2/min.
• Pregnancy or active breast feeding
• Failure to provide signed informed consent
• Stratum VI
• Patients with SS-LCH who have an isolated tumorous CNS lesion (they are eligible for Stratum V),
• Patients with isolated "CNS-risk" or multifocal bone lesions (they are eligible for Stratum I, Group 2)

INCLUSION CRITERIA: 1. Diagnosis: Refractory or relapsed neuroblastoma with original diagnosis based on tumor histopathology or elevated urine catecholamines with typical tumor cells in the bone marrow, OR pheochromocytoma or paraganglioma (less than 12 years of age) not amenable to curative surgery. 2. Age ≥12 months and able to cooperate with radiation safety restrictions during therapy period with/without pharmacologic anxiolysis. 3. Disease status: Failure to respond to standard therapy (usually combination chemotherapy with or without radiation and surgery) or development of progressive disease at any time (any new lesion or an increase in size of >25% of a pre-existing lesion). Disease evaluation must be completed within 8 weeks of study entry. If possible, the disease evaluation should take place subsequent to any intervening therapy; if intervening therapy does occur, evaluations should be done as clinically indicated. If patient has received prior treatment with MIBG, they must have a response or stable disease after the most recent MIBG infusion. Patient may have PD after showing an initial response to MIBG therapy (at [or around] the day 35-63 post-MIBG therapy evaluation). 4. Stem cells: Patients must have a hematopoietic stem cell product available for re-infusion after 131I-MIBG treatment at doses of 12 mCi/kg. If no stem cells are available, then the dose of 131I-MIBG should be <12 mCi/kg. 5. Prior Therapy: Patients may enter this study with or without re-induction therapy for recurrent tumor. Patients must have fully recovered from the toxic effects of any prior therapy, meeting the following criteria: 1. At least 2 weeks should have elapsed since any anti-tumor therapy and the patient must meet certain hematologic criteria. 2. 3 months should have elapsed in the case of completing external beam radiation for total abdominal, whole lung, total body irradiation (spot irradiation to skull-based metastases is NOT a contraindication). Patients who receive localized emergency radiation to sites of life-threatening or function-threatening disease prior to or immediately after establishment of the definitive diagnosis are not contraindicated for treatment on this protocol. 3. Cytokine therapy (e.g. G-CSF, GM-CSF, IL-6, erythropoietin) must be discontinued a minimum of 24 hours prior to 131I-MIBG therapy. 4. Minimum of six weeks from previous 131I-MIBG therapy. 5. The lifetime cumulative injected activity should be evaluated by the Investigator on a case-by-case basis with special attention to any recovery from past 131I-MIBG dose(s). 6. For patients who received a stem cell infusion for a previous 131I-MIBG therapy but do NOT have remaining stored stem cells: i. If the stem cell reinfusion was protocol driven but not based upon the development of profound cytopenias (e.g. automatic stem cell reinfusion on Day 14), the patient is eligible for retreatment with MIBG at a dose <12 mCi/kg at the investigators discretion; ii. If the stem cell reinfusion was given based upon the development of profound cytopenias, decisions for re-treatment with 131I-MIBG will require a case-by-case evaluation by the Investigator. 6. Organ Function: 1. Liver function: Bilirubin ≤ 2x upper limit of normal; AST/ALT ≤ 10x upper limit of normal. 2. Kidney function: i. Serum Creatinine ≤ 2x upper limit of normal OR ii. 24-hr creatinine clearance OR GFR ≥ 60 ml/min/1.73m2. c. Hematologic Criteria: ANC ≥750/uL; Platelets ≥ 50,000/uL without transfusion if stem cells are not available (ANC ≥ 500 and any platelet count allowed if stem cells available). Patient must be off myeloid growth factors for at least 24 hours. If the patient has received prior treatment with MIBG, they may be thrombocytopenic, but requiring no more than 2 platelet transfusions per week to maintain counts above 20,000/uL. Hemoglobin must be ≥ 10gm/dL (transfusion allowed) regardless of stored stem cell availability. d. Normal lung function, as manifested by no dyspnea at rest or exercise intolerance, no oxygen requirement. e. No clinically significant cardiac dysfunction. 7. Signed informed consent/assent has been obtained. EXCLUSION CRITERIA: 1. Patients 12 years and older with iobenguane scan positive, unresectable, locally advanced or metastatic pheochromocytoma or paraganglioma and marketed product is available. 2. Patients eligible for the Phase II (OPTIMUM) trial. 3. Patients with disease of any major organ system that would compromise their ability to withstand therapy. Any significant organ impairment should be discussed with the Principal Investigator prior to patient entry. 4. Because of the teratogenic potential of the study medications, no patients who are pregnant or lactating will be allowed. Patients of childbearing potential, who are sexually active, must practice an effective method of birth control while participating on this study, to avoid possible damage to the fetus . [e.g. intrauterine device, double-barrier method (i.e., diaphragm, or a cervical cap) with intravaginal spermicidal foam, cream or gel], or male partner sterilization throughout the study]. 5. Patients who are on hemodialysis 6. Proteinuria, in the absence of urinary infection, within 4 weeks prior to the planned treatment date is a relative contraindication to receiving therapy for patients with pheochromocytoma/paraganglioma. Patients with pheochromocytoma/paraganglioma with any clinically significant proteinuria must have a 24-hr urine protein determination. If proteinuria is confirmed as being above the institutional upper limit of normal, the patient is ineligible for MIBG therapy. 7. Patients with active infections that meet grade 3-4 according to the current version of the NCI CTCAE. 8. Patients with known MIBG-avid parenchymal brain metastases are not eligible. (Patients with leptomeningeal or skull-based metastases are eligible.)

• ELIGIBILITY CRITERIA
•CASES
• Diagnosis of primary cancer at age 21 or younger, irrespective of current age
• No prior history of allogeneic (non-autologous) hematopoietic cell transplant
• Development of one of the following key adverse events at any time following initiation of cancer therapy:
• Cardiac dysfunction; please note: case enrollment has been closed due to achievement of target accrual
• Ischemic stroke (IS)
• Subsequent malignant neoplasm (SMN)
• Avascular necrosis (AVN); please note: case enrollment has been closed due to achievement of target accrual
• Submission of a blood specimen (or in certain cases a saliva specimen) to the Coordinating Center at the University of Alabama at Birmingham as per the requirements; please note: if a patient is currently receiving active cancer treatment, it is preferable to obtain the blood sample at a time when the patient's white blood cell (WBC) is > 2,000
• Written informed consent from the patient and/or the patient's legally authorized guardian
• In active follow up by a COG institution; active follow up will be defined as date of last visit or contact by a COG institution within the past 24 months; any type of contact, including contact specifically for participation in ALTE03N1, qualifies as active follow-up; please note: treatment on a COG (or legacy group) therapeutic protocol for the primary cancer is NOT required
• ELIGIBILITY CRITERIA
•CONTROLS
• CONTROL: Diagnosis of primary cancer at age 21 or younger, irrespective of current age
• CONTROLS: No prior history of allogeneic (non-autologous) hematopoietic cell transplant
• CONTROLS: No clinical evidence of any of the following key adverse events:
• Cardiac dysfunction (CD); please note: if a patient is currently receiving active cancer treatment, it is preferable to obtain the blood sample at a time when the patient's WBC is > 2,000
• Ischemic stroke (IS)
• Avascular necrosis (AVN)
• Subsequent malignant neoplasm (SMN)
• CONTROLS: Submission of a blood specimen (or in certain cases a saliva specimen) to the Coordinating Center Laboratory at the University of Alabama at Birmingham as per the requirements
• CONTROLS: Written informed consent from the patient and/or the patient's legally authorized guardian
• CONTROLS: In active follow up by a COG institution; active follow up will be defined as date of last visit or contact by a COG institution within the past 24 months; any type of contact, including contact specifically for participation in ALTE03N1, qualifies as active follow-up; please note: treatment on a COG (or legacy group) therapeutic protocol for the primary cancer is NOT required

• Patient or legally authorized representative provides written authorization and/or consent per institution and geographical requirements
• Patient has or is intended to receive or be treated with an eligible Medtronic product
• Patient within enrollment window relative to therapy initiation or meets criteria for retrospective enrollment
• Patient who is, or will be, inaccessible for follow-up
• Patient with exclusion criteria required by local law
• Patient is currently enrolled in or plans to enroll in any concurrent drug and/or device study that may confound results

• Participants receiving health care through the Oneida Health Council Program
• Participants deemed to be at high risk for stroke by modified Framingham assessment of medical history, including cerebral cardiovascular symptomatology, hypertension, diabetes, smoking, BMI
• Willingness to participate in the study, including two-year follow-up
• Controls will be selected using the same criteria with the exception that upon screening, they are not deemed to be at high risk for stroke.
• Presence of established dementia
• Inability to participate in physical and exercise programs due to preexisting disability
• Illiteracy
• Prior carotid procedure altering ultrasound finding
• Presence of medical condition precluding participation or follow-up over a two-year period of time.

Part 1: Inclusion criteria: 1. Males or females aged ≥ 50 years; 2. Body mass index (BMI) greater than 18.5 kg/m2 and less than 45 kg/m2; 3. Diagnosed with "Clinically Probable PD" according to the MDS clinical diagnostic criteria, with documented diagnosis of PD per treating physician's records within three years of the Screening visit. Disease severity according to modified Hoehn & Yahr stage ≤ 2; 4. Projected to not required to start dopaminergic therapy within 9 months from Baseline; Exclusion criteria: 1. Current, or within 60 days of Screening, use of any prescription, investigational, or over the counter medication for the symptomatic treatment of PD or to slow the progression of PD. Treatment with Monoamine Oxidase B (MAOB) inhibitors will be allowed if the dose is stable for at least 30 days prior to Screening and subjects agree to remain on it for the duration of the study; 2. Prior use of dopaminergic therapy (e.g., levodopa, dopamine agonist, amantadine) for 30 or more days any time in the past; 3. A diagnosis of a significant central or peripheral nervous system disease affecting the subject's cognition or motor function at any time, such as another neurodegenerative disorder, multiple sclerosis or stroke. This does not include transient neurological deficits such as transient ischemic attacks or migraine aura; 4. A diagnosis of a medical condition that could interfere with interpretation of the MDS-UPDRS during the trial (e.g., musculoskeletal disorders); 5. Contraindications to receiving an MRI; 6. Contraindications to receiving a DaT SPECT scan (e.g., hypersensitivity to the active substance, any of the excipients, or iodine) if a new DaT SPECT scan is required for the study; 7. Most recent DaT SPECT scan not compatible with PD (i.e., Scans Without Evidence of Dopaminergic Deficit [SWEDD]) based on a central reading by a study physician; 8. MRI of the brain performed after onset of PD suggestive of secondary Parkinsonism (e.g., subdural hematoma, normal pressure hydrocephalus, or infarcts of the basal ganglia); 9. Severe tremors as defined by a score of "severe" on any of the MDS-UPDRS Parts 2 or 3 tremor severity (not constancy) items; 10. Montreal cognitive assessment score < 25 11. History of any surgery on the brain itself including deep brain stimulation for PD (note this does not include surgeries on the skull that do not affect the brain, e.g., small meningioma removal); 12. History of hypersensitivity (e.g., bronchospasm, anaphylaxis, serious drug rash) to contents of the study drug or other tyrosine kinase inhibitors; 13. Recent use of medications that can cause Parkinsonism and suspicion of the investigator that it could have worsened the subject's Parkinsonism. This includes neuroleptics (e.g., olanzapine, risperidone, haloperidol), some anti-nausea medications (e.g., prochlorperizine, metoclopramide) and others (e.g., flunarizine, methyldopa) 14. Use of medications that affect the dopaminergic system within 60 days of Screening. This includes stimulants (e.g., methylphenidate, amphetamine derivatives, modafinil) and Monoamine Oxidase A (MAOA) inhibitors (e.g., phenelzine, and tranylcypromine). Note that antidepressants are acceptable as long as the subject has remained on them at a stable dose for over 60 days prior to Screening and plans to remain on them through the study; 15. Any malignant disease (other than basal cell carcinoma of the skin) with evidence of disease within the past 5 years and with the potential for recurrence Part 2: Inclusion criteria: 1. Subject has completed part 1 of the study. 2. Subject projected not to need dopaminergic treatment except for treatment with Monoamine Oxidase B (MAOB) inhibitors. MAOB inhibitors will be allowed if the patient was already taking the same during part 1 of the study. 3. Subject has received K0706/placebo, as appropriate, within 4 weeks prior to end of part 1 of the study. 4. Male subjects enrolled in the study should not father a child and are advised to prevent the passage of semen to their sexual partner during intercourse using an effective method, as judged by the Investigator, for the duration of the study and for 3 months after the last dose of study drug Exclusion criteria: 1. Clinically significant or unstable psychiatric or medical condition, vital sign, or laboratory abnormality that in the opinion of the investigator interferes with participation in the study 2. Any condition that in the opinion of the Investigator represents an obstacle for study conduct and/or represents a potential unacceptable risk for the subject. 3. Subject has any concurrent medical condition or uncontrolled, clinically significant systemic disease (e.g., renal failure, heart failure, hypertension, liver disease, diabetes, or anemia) that, in the opinion of the Investigator, could cause continued treatment to be detrimental to the subject

• Patients must be >= 2 years and =< 21 years at the time of enrollment
• Patients must have a body surface area (BSA) of >= 0.5 m^2 at enrollment
• Patients must have non-neurofibromatosis type 1 (non-NF1) low-grade glioma (LGG) without a BRAFV600E mutation as confirmed by Rapid Central Pathology and Molecular Screening Reviews performed on APEC14B1 (NCT02402244) and that has not been treated with any modality besides surgery. Note: Patients may be newly-diagnosed OR previously diagnosed, and there is no required time frame between biopsy/surgery and treatment initiation.
• Patients with residual tumor after resection or progressive tumor after initial diagnosis (with or without surgery) who have not received treatment (chemotherapy and/or radiation) are eligible
• Patients must have two-dimensional measurable tumor >= 1 cm^2 to be eligible
• Eligible histologies will include all tumors considered low-grade glioma or low-grade astrocytoma (World Health Organization [WHO] grade I and II) by 5th edition WHO classification of central nervous system (CNS) tumors with the exception of subependymal giant cell astrocytoma
• Patients with metastatic disease or multiple independent primary LGG are eligible
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 OR a serum creatinine based on age/gender as follows (performed within 7 days prior to enrollment):
• Age: Maximum Serum Creatinine (mg/dL)
• 2 to < 6 years: 0.8 mg/dL (male); 0.8 mg/dL (female)
• 6 to < 10 years: 1 mg/dL (male); 1 mg/dL (female)
• 10 to < 13 years: 1.2 mg/dL (male); 1.2 mg/dL (female)
• 13 to < 16 years: 1.5 mg/dL (male); 1.4 mg/dL (female)
• >= 16 years: 1.7 mg/dL (male); 1.4 mg/dL (female)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (performed within 7 days prior to enrollment) (children with a diagnosis of Gilbert's syndrome will be allowed on study regardless of their total and indirect [unconjugated] bilirubin levels as long as their direct [conjugated] bilirubin is < 3.1 mg/dL)
• Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L (performed within 7 days prior to enrollment). For the purpose of this study, the ULN for SGPT is 45 U/L
• Albumin >= 2 g/dL (performed within 7 days prior to enrollment)
• Left ventricular ejection fraction (LVEF) >= 53% (or institutional normal; if the LVEF result is given as a range of values, then the upper value of the range will be used) by echocardiogram (performed within 4 weeks prior to enrollment)
• Corrected QT (QTc) interval =< 450 msec by electrocardiography (EKG) (performed within 4 weeks prior to enrollment)
• Absolute neutrophil count >= 1,000/uL (unsupported) (performed within 7 days prior to enrollment)
• Platelets >= 100,000/uL (unsupported) (performed within 7 days prior to enrollment)
• Hemoglobin >= 8 g/dL (may be supported) (performed within 7 days prior to enrollment)
• Patients with a known seizure disorder should be stable and should not have experienced a significant increase in seizure frequency within 2 weeks prior to enrollment
• Patients 2-17 years of age must have a blood pressure that is =< 95th percentile for age, height, and gender at the time of enrollment (with or without the use of anti-hypertensive medications)
• Patients >= 18 years of age must have a blood pressure =< 130/80 mmHg at the time of enrollment (with or without the use of anti-hypertensive medications)
• Note for patients of all ages: Adequate blood pressure can be achieved using medication for the treatment of hypertension
• All patients must have ophthalmology toxicity assessments performed within 4 weeks prior to enrollment
• For all patients, a magnetic resonance imaging (MRI) of the brain (with orbital cuts for optic pathway tumors) and/or spine (depending on the site(s) of primary disease) with and without contrast must be performed within 4 weeks prior to enrollment
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age
• Patients must have the ability to swallow whole capsules
• All patients have signed an appropriate consent form and Health Insurance Portability and Accountability Act (HIPAA) authorization form (if applicable)
• All patients and/or their parents or legal guardians must sign a written informed consent
• All patients have been consented and enrolled on APEC14B1 (NCT02402244) followed by enrollment on the ACNS1833 Pre-Enrollment Eligibility Screening (Step 0) on the same day to complete the Rapid Central Review
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met
• Patients must not have received any prior tumor-directed therapy including chemotherapy, radiation therapy, immunotherapy, or bone marrow transplant. Prior surgical intervention is permitted
• Patients with a concurrent malignancy or history of treatment (other than surgery) for another tumor within the last year are ineligible
• Patients with diffuse intrinsic pontine tumors as seen on MRI (> 2/3 of pons involvement on imaging) are not eligible even if biopsy reveals grade I/II histology
• Patients may not be receiving any other investigational agents
• Patients with any serious medical or psychiatric illness/condition, including substance use disorders or ophthalmological conditions, likely in the judgment of the investigator to interfere or limit compliance with study requirements/treatment
• Patients who, in the opinion of the investigator, are not able to comply with the study procedures are not eligible
• Female patients who are pregnant are not eligible since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential
• Lactating females who plan to breastfeed their infants are not eligible
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation and for 12 weeks after stopping study therapy are not eligible.
• Note: Women of child-bearing potential and males with sexual partners who are pregnant or who could become pregnant (i.e., women of child-bearing potential) should use effective methods of contraception for the duration of the study and for 12 weeks after stopping study therapy to avoid pregnancy and/or potential adverse effects on the developing embryo
• Known genetic disorder that increases risk for coronary artery disease. Note: The presence of dyslipidemia in a family with a history of myocardial infarction is not in itself an exclusion unless there is a known genetic disorder documented
• Symptomatic heart failure
• New York Health Association (NYHA) class II-IV prior or current cardiomyopathy
• Severe valvular heart disease
• History of atrial fibrillation
• Current or past history of central serous retinopathy
• Current or past history of retinal vein occlusion or retinal detachment
• Patients with uncontrolled glaucoma
• If checking pressure is clinically indicated, patients with intraocular pressure (IOP) > 22 mmHg or ULN adjusted by age are not eligible
• Supplementation with vitamin E greater than 100% of the daily recommended dose. Any multivitamin containing vitamin E must be stopped prior to study enrollment even if less than 100% of the daily recommended dosing for vitamin E
• Surgery within 2 weeks prior to enrollment, with the exception of surgical biopsy, placement of a vascular access device or cerebral spinal fluid (CSF) diverting procedure such as endoscopic third ventriculostomy (ETV) and ventriculoperitoneal (VP) shunt.
• Note: Patients must have healed from any prior surgery
• Patients who have an uncontrolled infection are not eligible

• Patients must be >= 2 years and =< 21 years at the time of enrollment
• Patients must have a body surface area (BSA) of >= 0.5 m^2 at enrollment
• Patients must have neurofibromatosis type 1 (NF1) based on clinical criteria and/or germline genetic testing
• Patients must be newly diagnosed or have previously diagnosed NF-1 associated LGG that has not been treated with any modality other than surgery
• For patients with optic pathway gliomas (OPGs):
• Newly-diagnosed patients with OPG are eligible if there are neurologic symptoms (including visual dysfunction, as defined below) or other exam findings associated with the tumor
• Previously-diagnosed patients with OPG are eligible if they have new or worsening neurologic symptoms (including visual dysfunction, as defined below) or have tumor growth
• For both newly-diagnosed and previously-diagnosed OPG, the patient may be eligible, irrespective of whether there has been tumor growth or other neurological symptoms or worsening, if they meet at least one of the following visual criteria:
• Visual worsening, defined as worsening of visual acuity (VA) or visual fields (VF) documented within the past year (by examination or history); OR
• Significant visual dysfunction (defined as VA worse than normal for age by 0.6 logMAR [20/80, 6/24, or 2.5/10] or more in one or both eyes)
• For patients with LGG in other locations (i.e., not OPGs):
• Newly-diagnosed patients with LGG are eligible if there are neurologic symptoms or other exam findings associated with the tumor
• NOTE: Newly-diagnosed patients with LGG without associated neurologic symptoms or exam findings are not eligible
• Previously-diagnosed patients with LGG are eligible if they have new or worsening neurologic symptoms or have tumor growth
• Although not required, if a biopsy/tumor resection is performed, eligible histologies will include all tumors considered LGG or low-grade astrocytoma (World Health Organization [WHO] grade I and II) by 5th edition WHO classification of central nervous system (CNS) tumors with the exception of subependymal giant cell astrocytoma
• Patients must have two-dimensional measurable tumor >= 1 cm^2
• Patients with metastatic disease or multiple independent primary LGGs are allowed on study
• Creatinine clearance or radioisotope glomerular filtration Rate (GFR) >= 70 mL/min/1.73 m^2 OR a serum creatinine based on age/gender (within 7 days prior to enrollment) as follows:
• Age; maximum serum creatinine (mg/dL)
• 2 to < 6 years; 0.8 (male) and 0.8 (female)
• 6 to < 10 years; 1 (male) and 1 (female)
• 10 to < 13 years; 1.2 (male) and 1.2 (female)
• 13 to < 16 years; 1.5 (male) and 1.4 (female)
• >= 16 years; 1.7 (male) and 1.4 (female)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment) (children with a diagnosis of Gilbert's syndrome will be allowed on study regardless of their total and indirect [unconjugated] bilirubin levels as long as their direct [conjugated] bilirubin is < 3.1 mg/dL)
• Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 3 x upper limit of normal (ULN) = 135 U/L (within 7 days prior to enrollment). For the purpose of this study, the ULN for SGPT is 45 U/L
• Albumin >= 2 g/dL (within 7 days prior to enrollment)
• Left ventricular ejection fraction (LVEF) >= 53% (or institutional normal; if the LVEF result is given as a range of values, then the upper value of the range will be used) by echocardiogram (within 4 weeks prior to enrollment)
• Corrected QT (QTc) interval =< 450 msec by electrocardiography (EKG) (within 4 weeks prior to enrollment)
• Absolute neutrophil count >= 1,000/uL (unsupported) (within 7 days prior to enrollment)
• Platelets >= 100,000/uL (unsupported) (within 7 days prior to enrollment)
• Hemoglobin >= 8 g/dL (may be supported) (within 7 days prior to enrollment)
• Patients with a known seizure disorder should be stable and should have not experienced a significant increase in seizure frequency within 2 weeks prior to enrollment
• Patients 2-17 years of age must have a blood pressure that is =< 95th percentile for age, height, and gender at the time of enrollment. Patients >= 18 years of age must have a blood pressure =< 130/80 mmHg at the time of enrollment (with or without the use of antihypertensive medications).
• Note: Adequate blood pressure can be achieved using medication for the treatment of hypertension
• All patients must have ophthalmology toxicity assessments performed within 4 weeks prior to enrollment
• For all patients, an MRI of the brain (with orbital cuts for optic pathway tumors) and/or spine (depending on the site(s) of primary disease) with and without contrast must be performed within 4 weeks prior to enrollment
• For patients who undergo a surgery on the target tumor (not required), a pre- and post-operative* MRI of the brain (with orbital cuts for optic pathway tumors) or spine (depending on the site(s) of primary disease) with and without contrast must also be performed within 4 weeks prior to enrollment
• The post-operative MRIs should be performed ideally within 48 hours after surgery if possible
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age
• Patients must have the ability to swallow whole capsules
• Patients must have receptive and expressive language skills in English or Spanish to complete the quality of life (QOL) and neurocognitive assessments
• All patients and/or their parents or legal guardians must sign a written informed consent.
• All institutional, Food and Drug Administration (FDA), and National Cancer Institute (NCI) requirements for human studies must be met.
• Patients must not have received any prior tumor-directed therapy including chemotherapy, radiation therapy, immunotherapy, or bone marrow transplant. Prior surgical intervention is permitted
• Patients with a concurrent malignancy or history of treatment (other than surgery) for another tumor within the last year are ineligible
• Patients may not be receiving any other investigational agents
• Patients with any serious medical or psychiatric illness/ condition, including substance use disorders likely in the judgement of the investigator to interfere or limit compliance with study requirements/treatment are not eligible
• Patients who, in the opinion of the investigator, are not able to comply with the study procedures are not eligible
• Female patients who are pregnant are not eligible since fetal toxicities and teratogenic effects have been noted for several of the study drugs. A pregnancy test is required for female patients of childbearing potential
• Lactating females who plan to breastfeed their infants are not eligible
• Sexually active patients of reproductive potential who have not agreed to use an effective contraceptive method for the duration of their study participation and for 12 weeks after stopping study therapy are not eligible
• Note: Women of child-bearing potential and males with sexual partners who are pregnant or who could become pregnant (i.e., women of child-bearing potential) should use effective methods of contraception for the duration of the study and for 12 weeks after stopping study therapy to avoid pregnancy and/or potential adverse effects on the developing embryo
• Cardiac conditions:
• Known genetic disorder that increases risk for coronary artery disease. Note: The presence of dyslipidemia in a family with a history of myocardial infarction is not in itself an exclusion unless there is a known genetic disorder documented
• Symptomatic heart failure
• New York Heart Association (NYHA) class II-IV prior or current cardiomyopathy
• Severe valvular heart disease
• History of atrial fibrillation
• Ophthalmologic conditions:
• Current or past history of central serous retinopathy
• Current or past history of retinal vein occlusion or retinal detachment
• Patients with uncontrolled glaucoma
• If checking pressure is clinically indicated, patients with intraocular pressure (IOP) > 22 mmHg or ULN adjusted by age are not eligible
• Ophthalmological findings secondary to long-standing optic pathway glioma (such as visual loss, optic nerve pallor, or strabismus) or longstanding orbito-temporal plexiform neurofibroma (PN), such as visual loss, strabismus) will NOT be considered a significant abnormality for the purposes of the study
• Treatments and/or medications patient is receiving that would make her/him ineligible, such as:
• Supplementation with vitamin E greater than 100% of the daily recommended dose. Any multivitamin containing vitamin E must be stopped prior to study enrollment even if less than 100% of the daily recommended dosing for vitamin E
• Surgery within 2 weeks prior to enrollment, with the exception of surgical placement for vascular access or cerebrospinal fluid (CSF) diverting procedures such as endoscopic third ventriculostomy (ETV) and ventriculo-peritoneal (VP) shunt.
• Note: Patients must have healed from any prior surgery prior to enrollment
• Patients who have an uncontrolled infection are not eligible

• PRE-ENROLLMENT ELIGIBILITY SCREENING: Patients must be =< 25 years of age at the time of enrollment on APEC14B1 Part A CNS/HGG pre-enrollment eligibility screening.
• Note: This required age range applies to the pre-enrollment eligibility screening for all HGG patients. Individual treatment protocols may have different age criteria.
• PRE-ENROLLMENT ELIGIBILITY SCREENING: Patient is suspected of having localized newly-diagnosed HGG, excluding metastatic disease.
• PRE-ENROLLMENT ELIGIBILITY SCREENING: Patient and/or their parents or legal guardians have signed informed consent for eligibility screening on APEC14B1 Part A.
• PRE-ENROLLMENT ELIGIBILITY SCREENING: The specimens obtained at the time of diagnostic biopsy or surgery must be submitted through APEC14B1 as soon as possible (ASAP), preferably within 5 calendar days of the procedure.
• Please note: See the APEC14B1 Manual of Procedures for a full list of detailed instructions for submitting required materials and for shipping details.
• Patients must be >= 3 years and =< 25 years of age at the time of enrollment.
• Patients must have eligibility confirmed by Rapid Central Pathology and Molecular Screening Reviews performed on APEC14B1
• Newly diagnosed high-grade glioma with BRAF^V600-mutation
• Results for H3 K27M by immunohistochemistry (IHC) or sequencing
• Histologically confirmed high-grade glioma (World Health Organization [WHO] grade III or IV) including but not limited to: anaplastic astrocytoma (AA), anaplastic pleomorphic xanthoastrocytoma (aPXA), anaplastic gangliogliomas (aGG), glioblastoma (GB), and high-grade astrocytoma, not otherwise specified (NOS).
• Patients must have had histologic verification of a high-grade glioma diagnosis. CSF cytology by lumbar puncture must be done if clinically indicated and determined to be safe prior to study enrollment. If cytology proves positive, the patient would be considered to have metastatic disease and would, therefore, be ineligible.
• A pre- and post-operative brain MRI with and without contrast and a baseline spine MRI with contrast must be obtained prior to enrollment. The requirement for a post-operative MRI is waived for patients who undergo biopsy only. If the spine MRI is positive, the patient would be considered to have metastatic disease and would be ineligible.
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1, or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age.
• Peripheral absolute neutrophil count (ANC) >= 1000/uL (within 7 days prior to enrollment).
• Platelet count >= 100,000/uL (transfusion independent) (within 7 days prior to enrollment).
• Hemoglobin >= 8.0 g/dL (may receive red blood cell [RBC] transfusions) (within 7 days prior to enrollment).
• Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 (within 7 days prior to enrollment) or
• A serum creatinine based on age/gender as follows (within 7 days prior to enrollment):
• Age 3 to < 6 years (Male 0.8 mg/dL, Female 0.8 mg/dL)
• Age 6 to < 10 years (Male 1 mg/dL, Female 1 mg/dL)
• Age 10 to < 13 years (Male 1.2 mg/dL, Female 1.2 mg/dL)
• Age 13 to < 16 years (Male 1.5 mg/dL, Female 1.4 mg/dL)
• Age >= 16 years (Male 1.7 mg/dL, Female 1.4 mg/dL)
• Total bilirubin =< 1.5 x upper limit of normal (ULN) for age (within 7 days prior to enrollment), and
• Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L (within 7 days prior to enrollment). For the purpose of this study, the ULN for SGPT is 45 U/L.
• Patients with a seizure disorder may be enrolled if their seizures are well controlled while on non-enzyme inducing anticonvulsants permitted on this study.
• All patients and/or their parents or legal guardians must sign a written informed consent
• Patients must be enrolled and protocol therapy must be projected to begin no later than 31 days after definitive surgery (day 0). If a biopsy only was performed, the biopsy date will be considered the date of definitive surgery. For patients who have a biopsy or incomplete resection at diagnosis followed by additional surgery, the date of the last resection will be considered the date of definitive surgery.
• Patients with intrinsic brainstem or primary spinal cord tumors will be excluded.
• Patients with metastatic disease (defined as neuraxis dissemination either by imaging or by cytology) will be excluded.
• Patients must not have received any prior tumor-directed therapy including chemotherapy, radiation therapy, immunotherapy, or bone marrow transplant for the treatment of HGG other than surgical intervention and/or corticosteroids.
• Previous treatment with dabrafenib or another RAF inhibitor, trametinib or another MEK inhibitor, or an ERK inhibitor.
• Patients with a history of a malignancy with confirmed activating RAS mutation.
• History of allergic reactions attributed to compounds of similar chemical or biologic composition to dabrafenib, trametinib, and their excipients.
• Uncontrolled medical conditions (e.g., diabetes mellitus, hypertension, liver disease, or uncontrolled infection), psychological, familial, sociological, or geographical conditions that do not permit compliance with the protocol; or unwillingness or inability to follow the procedures required in the protocol.
• Presence of active gastrointestinal (GI) disease or other condition (e.g., small bowel or large bowel resection) that will interfere significantly with the absorption of drugs.
• History of hepatitis B virus, or hepatitis C virus infection (patients with laboratory evidence of cleared hepatitis B virus and/or hepatitis C virus may be enrolled).
• History or current diagnosis of cardiac disease indicating significant risk of safety for patients participating in the study such as uncontrolled or significant cardiac disease, including any of the following:
• Recent myocardial infarction (within the last 6 months);
• Uncontrolled congestive heart failure;
• Unstable angina (within last 6 months);
• Clinically significant (symptomatic) or known, uncontrolled cardiac arrhythmias (e.g., sustained ventricular tachycardia, and clinically significant second or third degree atrioventricular [AV] block without a pacemaker) except sinus arrhythmia within the past 24 weeks prior to the first dose of study treatment;
• Coronary angioplasty or stenting (within last 6 months);
• Intra-cardiac defibrillators;
• Abnormal cardiac valve morphology (>= grade 2) documented by echocardiogram.
• Patients with a history or current evidence of retinal vein occlusion (RVO) or central serous retinopathy (CSR), or predisposing factors to RVO or CSR (e.g., uncontrolled glaucoma or ocular hypertension).
• Patients with presence of interstitial lung disease or pneumonitis.
• Female patients who are pregnant are ineligible since there is yet no available information regarding human fetal or teratogenic toxicities.
• Lactating females are not eligible unless they have agreed not to breastfeed their infants for the duration of the study and for 4 months following discontinuation of study therapy.
• Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained.
• Sexually active patients of reproductive potential (male or female) are not eligible unless they have agreed to use an effective contraceptive method for the duration of their study participation and for 4 months following discontinuation of study therapy. Male patients (including those who have had a vasectomy) taking dabrafenib and trametinib combination therapy must use a condom during intercourse while on study and for 16 weeks after stopping treatment, and should not father a child during these periods. Women of childbearing potential should use effective non-hormonal contraception during therapy and for 4 weeks following discontinuation of dabrafenib and at least 4 months following the last dose of trametinib in patients taking combination therapy. Women should be advised that dabrafenib may decrease the efficacy of hormonal contraceptives and an alternate method of contraception, such as barrier methods, should be used.

1. Participant is able and willing to provide informed consent (≥18 years), or informed consent is obtained by the parent or legal guardian for minor participants, with the minor providing age appropriate assent, according to local law and regulations; 2. Life expectancy ≥ 12 weeks; 3. Known high-risk neuroblastoma OR previously intermediate-risk neuroblastoma that has relapsed or progressed to high-risk, with failure to achieve complete response with standard therapy (defined as at least 4 cycles of aggressive multi-drug induction chemotherapy with or without radiation and surgery, or according to a standard high-risk treatment/neuroblastoma protocol), OR who are medically ineligible to receive standard treatment OR who are intolerant to standard treatment; 4. Adequate recovery from acute toxic effects of any prior therapy, as deemed by the Investigator or treating Sub-Investigator; 5. Adequate liver function as defined by the following laboratory values obtained within 28 days prior to administration of 64Cu-SARTATE: Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3.0 x upper limit of normal (ULN); 6. Adequate renal function; 7. Adequate laboratory parameters: Absolute neutrophil count > 1.0 x 10 9/L; Platelet count > 50 x 10 9/L; Total bilirubin <1.5 x ULN; 8. Karnofsky or Lansky performance status ≥50; 9. All participants must have a hematopoietic stem cell product available (minimum CD34+ cell dose is ≥2 x 10 6 cells/kg); 10. Sexually active participants of reproductive potential must practice an effective method of birth control while participating on this study, to avoid possible damage to the fetus. Abstinence is considered acceptable; 11. 64Cu-SARTATE uptake on the 4 hour scan (SUVmax) of any lesion equal to or higher than that of the liver in order to move on to the therapy phase of the study. 1. Participants with disease of any major organ system that would compromise their ability to tolerate therapy, as deemed by the Investigator or treating Sub-Investigator; 2. Any other active malignancy, or a history of prior malignancy within the past 3 years; 3. History of cardiac failure as evidenced by: dyspnea at rest, exercise intolerance, oxygen requirement, clinically significant cardiac dysfunction; 4. Planned administration of chemotherapy, anti-cancer cytokine therapy, immunotherapy or radiotherapy within 2 weeks prior to the administration of 64Cu-SARTATE; 5. Administration of therapeutic dose of 131I-MIBG within 8 weeks prior to the administration of 64Cu-SARTATE; 6. External beam radiation therapy (EBRT) to both kidneys or a single functioning kidney within 12 months prior to the administration of 64Cu-SARTATE; 7. Administration of any investigational agents within 21 days prior to administration of 64Cu-SARTATE; 8. Treatment with long acting somatostatin analogues (administered within 28 days prior to the administration of 64Cu-SARTATE), or short acting somatostatin analogues (administered within 24 hours prior to the administration of 64Cu-SARTATE); 9. Known sensitivity or allergy to somatostatin analogues; 10. Previous peptide receptor radionuclide therapy (PRRT); 11. Female participants who are pregnant or lactating; 12. Participants who are on hemodialysis; 13. QTc interval ≥ 0.45 seconds as measured by Screening ECG; 14. Participants with uncontrolled infection(s); 15. Any medical condition which the Investigator feels may interfere with the procedures or evaluations of the study; 16. Participants 12 months and younger will be excluded from cohorts where the planned single or cumulative administered activity is modelled to deliver a radiation dose to the marrow that exceeds 2 Gy.

Inclusion criteria: Participants must meet all of the following criteria to be included in this study: 1. Male or female, age 55 to 80 years inclusive at the time of informed consent, with a plasma biomarker result that is predictive of intermediate or elevated brain amyloid at Screening or known before Screening to have elevated or intermediate amyloid according to previous PET, cerebrospinal fluid (CSF), or plasma testing • Those 55 to 64 must have 1 of the following additional risk factors, given the relatively low rates of amyloid positivity less than (<) 65 years, before screening:
• First degree relative diagnosed with dementia onset before age 75, or
• Known to possess at least 1 apolipoprotein E4 variant (APOE4) allele, or
• Known before screening to have elevated brain amyloid according to previous plasma biomarker results, PET imaging, or CSF testing 2. Global Clinical Dementia Rating (CDR) score of 0 at screening 3. Mini Mental State Examination score greater than or equal to (>=) 27 (with educational adjustments) at screening. 4. Wechsler Memory Scale-Revised Logical Memory subscale II (WMS-R LM II) score at screening of >=6 5. A45 Trial: Elevated brain amyloid pathology by amyloid PET: defined as approximately greater than (>) 40 Centiloids on screening scan A3 Trial: Intermediate levels of brain amyloid pathology by amyloid PET: defined as approximately 20 to 40 Centiloids on screening scan 6. Has a study partner that is willing to participate as a source of information and has approximately weekly contact with the participant (contact can be in-person, via telephone or electronic communication). The study partner must have sufficient contact such that the investigator feels the study partner can provide meaningful information about the participant's daily function 7. Provide written (or electronic, if allowed per country-specific regulations) informed consent 8. Willing and able to comply with all aspects of the protocol For extension phase : 1. Completed the Core Study, or meet the following progression criteria during the Core Study:
• Two consecutive CDR visits with Global Scores > zero when measured at least 6 months apart within the Core Study
• The principal investigator's confirmation that the participant has clinically declined consistent progression to EAD 2. Must continue to have a study partner who is willing and able to provide follow-up information on the participant throughout the course of the Extension Phase. The study partner must provide separate written informed consent for the Extension Phase. Study partners must continue to have sufficient contact such that the investigator feels the study partner can provide meaningful information about the participant's daily functions 3. Provide written informed consent for the Extension Phase. If a participant lacks capacity to consent in the investigator's opinion, the participant's assent should be obtained, if required and in accordance with local laws, regulations, and customs, plus the written informed consent of a legal representative (capacity to consent and the definition of a legal representative should be determined in accordance with applicable local laws and regulations). In countries where local laws, regulations, and customs do not permit participants who lack capacity to consent to participate in this study (example, Spain), they will not be enrolled 4. Willing and able to comply with all aspects of the protocol Exclusion criteria: Participants who meet any of the following criteria will be excluded from this study: 1. Females who are breastfeeding or pregnant at screening or baseline 2. Females of childbearing potential who: • Within 28 days before study entry, did not use a highly effective method of contraception For sites outside of Europe, it is permissible that if a highly effective method of contraception is not appropriate or acceptable to the participant, then the participant must agree to use a medically acceptable method of contraception 3. History of transient ischemic attacks (TIA), stroke, or seizures within 12 months of screening 4. Current or history within the past 2 years of psychiatric diagnosis or symptoms that, in the opinion of the investigator, could interfere with study procedures 5. Contraindications to 3 Tesla magnetic resonance imaging (MRI) scanning, including cardiac pacemaker/defibrillator, ferromagnetic metal implants (example, in-skull and cardiac devices other than those approved as safe for use in MRI scanners), or exhibit other significant pathological findings on brain MRI at Screening 6. Hypersensitivity to any monoclonal antibody treatment 7. Any immunological disease which is not adequately controlled, or which requires treatment with immunoglobulins, systemic monoclonal antibodies (or derivatives of monoclonal antibodies), systemic immunosuppressants, or plasmapheresis during the study 8. Bleeding disorder that is not under adequate control (including a platelet count <50,000 or international normalized ratio [INR] >1.5) at screening 9. Results of laboratory tests conducted during screening that are outside the following limits:
• Thyroid stimulating hormone (TSH) above normal range
• Abnormally low (below lower limit of normal [LLN]) serum vitamin B12 levels for the testing laboratory (if participant is taking vitamin B12 injections, level should be at or above the LLN for the testing laboratory). A low vitamin B12 is exclusionary, unless the required follow-up labs (homocysteine and methylmalonic acid [MMA]) indicate that it is not physiologically significant 10. Known to be human immunodeficiency virus (HIV) positive 11. Any other clinically significant abnormalities that in the opinion of the investigator require further investigation or treatment or may interfere with study procedures or safety 12. Malignant neoplasms within 3 years of screening (except for basal or squamous cell carcinoma in situ of the skin, or localized prostate cancer in male participants with treatment cycles completed at least 6 months before screening). Participants who had malignant neoplasms but who have had at least 3 years of documented uninterrupted remission before screening need not be excluded 13. Answer "yes" to Columbia-Suicide Severity Rating Scale (C-SSRS) suicidal ideation Type 4 or 5, or any suicidal behavior assessment within 6 months before screening, at screening, or at baseline, or has been hospitalized or treated for suicidal behavior in the past 5 years before screening 14. Known or suspected history of drug or alcohol abuse or dependence within 2 years before screening or a positive urine drug test at screening. Participants who test positive for benzodiazepines, opioids, or tetrahydrocannabinol (THC) in urine drug testing need not be excluded unless in the clinical opinion of the investigator this is due to potential drug abuse 15. Taking prohibited medications 16. Participation in a clinical study involving:
• Any anti-amyloid plaque lowering immunotherapy (example, therapeutic monoclonal antibody or active anti-amyloid vaccine) at any time, unless it can be documented that the participant was randomized to placebo or never received study drug
• Any immunoglobulin therapy, or vaccine within 6 months before Screening, unless it can be documented that the participant was randomized to placebo or never received study drug
• Lecanemab
• Any new chemical entities or investigational drug for AD within 6 months before randomization unless it can be documented that the participant received only placebo
• Any other investigational medication or device study in the 8 weeks or 5 half-lives (whichever is longer) of the medication before randomization unless it can be documented that the participant was in a placebo treatment arm 17. Planned surgery during the pre-randomization phase or within 3 months of randomization, which requires general anesthesia For extension phase: 1. Discontinued from the Core Study or from study treatment 2. Under study drug interruption due to ARIA or other AE at the time of transition to the extension phase