Patients who meet the following inclusion criteria will be eligible for enrollment in the study: 1. Age between 18 and 60 years, inclusive. 2. Diagnosis of relapsing forms of MS, to include RRMS and active SPMS, diagnosed with McDonald Criteria 2005, 2010, and/or 2017 (1-3) 3. EDSS 0
•5.5 (Functional system changes in cerebral (or mental) functions and in bowel and bladder functions not used in determining EDSS for protocol eligibility). 4. Has had a minimum of 12 months of continuous natalizumab therapy (300 mg/d), including patients receiving extended interval dosing of natalizumab (e.g., less frequently than every-4-week infusion). 5. Negative history for any relapses at least 28 days prior to enrollment. 6. Weighing between 40 kilograms or more. 7. Female subjects of childbearing potential must use effective methods of contraception to prevent pregnancy for 4 weeks before initiation of cladribine tablets and must agree to continue to practice adequate contraception for at least 6 months after the last dose. Women using systemically acting hormonal contraceptives should add a barrier method during cladribine treatment and for at least 4 weeks after the last dose in each treatment year. 8. Female subjects must not be pregnant; female subjects must not be lactating or breast-feeding at least 10 days after the last dose. 9. Male subjects must be willing to use a condom during dosing and for six months after the last dose. Alternatively, their female partner must use another form of contraception (such as an intra-uterine device [IUD], barrier method with spermicide, or hormonal contraceptive [e.g., implant, injectable, patch or oral]) during dosing and for six months after last dose. 10. Understands and is capable of following through with study protocol requirements and assessments. 11. Willing to provide voluntary and informed consent based on the Health Insurance Portability and Accountability Act (HIPPA). Patients who meet any of the following exclusion criteria will not be eligible for enrollment in the study: 1. Natalizumab failure based on clinician's discretion. 2. Not active progressive MS (4). 3. A diagnosis of PML or any suspicion of PML. 4. A diagnosis of Clinically Isolated Syndrome 5. Known hypersensitivity to cladribine. 6. Any prior exposure to cladribine. 7. Lymphocyte count not within normal limits of the local, hospital laboratory. 8. Previous or current exposure to mitoxantrone, azathioprine, methotrexate, cyclophosphamide, myelosuppressive treatments, total lymphoid irradiation. 9. Receiving oral or systemic corticosteroid treatments within the 28 days prior to enrollment. 10. Receiving cytokine base treatment, Intra Venous Immuno Globulin (IVIG) or Plasma pheresis, 3 months prior to enrollment in the study. 11. Having platelet count or neutrophil count below the lower limit of the normal range within the 28 days prior to enrollment in the study. 12. Positive for HIV, or positive hepatitis C antibody test or hepatitis B surface antigen test and/or core antibody test for IgG and/or IgM. 13. History of tuberculosis (TB), presence of active tuberculosis, or latent tuberculosis as detected by local standard of practice like imaging (e.g., chest X-ray, chest CT scan, MRI) and/or positive QuantiFERON-TB Gold test and/or skin test and/or clinical examination or has had latent TB disease at any time in the past. 14. Immunocompromised subjects, including subjects currently receiving immunosuppressive or myelosuppressive therapy with, e.g., monoclonal antibodies, methotrexate, cyclophosphamide, cyclosporine or azathioprine, or chronic use of corticosteroids. 15. Active malignancy or history of malignancy. 16. Received a live vaccine within 6 weeks prior to cladribine tablet administration or intends to receive a live vaccination during the trial. After the last dose of cladribine tablets, the subject should avoid live vaccine as long as the subject's white blood cell counts are not within normal limits. 17. Allergy or hypersensitivity to gadolinium and/or any other contraindication to perform an MRI. 18. Has any renal condition that would preclude the administration of gadolinium (e.g. acute or chronic severe renal insufficiency (GFR < 30 mL/min/1.73m2) -

• Have a clinical diagnosis of SLE at least 24 weeks prior to screening.
• Have documentation of having met at least 4 of 11 Revised Criteria for Classification of Systemic Lupus Erythematosus according to the 1997 Update of the 1982 American College of Rheumatology (ACR) criteria for classification of SLE prior to randomization.
• Have a positive antinuclear antibody (ANA) (titer ≥1:80) and/or a positive anti-double-stranded deoxyribonucleic acid (dsDNA), and/or a positive anti-Smith (anti-Sm) as assessed by a central laboratory during screening.
• Have a total Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) score ≥6 during screening.
• Have a clinical SLEDAI-2K score ≥4 at randomization.
• Have active arthritis and/or active rash.
• Have severe active lupus nephritis.
• Have active central nervous system (CNS) lupus.
• Have a history or presence of cardiovascular, respiratory, hepatic, gastrointestinal, endocrine, hematological, neurological, or neuropsychiatric disorders or any other serious and/or unstable illness that, in the opinion of the investigator, could constitute an unacceptable risk when taking investigational product or interfere with the interpretation of data.
• Have a current or recent clinically serious viral, bacterial, fungal, or parasitic infection.

• completion of the EPITOPE study
• Generalized dermatologic disease (for example, active atopic dermatitis, uncontrolled generalized active eczema, ichthyosis vulgaris) extending widely on the skin and especially on the back or arms with no intact zones to apply the Viaskin patches.
• Diagnosis of asthma that evolved to severe, unstable or uncontrolled asthma

1. Between 15 and 49 years of age, inclusive, at Visit 1. 2. Anti-nuclear antibody (ANA) titer of 1:80, or greater, as determined by immunofluorescence assay (IFA). 3. Participants must have at least one (but not three or more) additional clinical or laboratory criterion from the 2012 Systemic Lupus International Collaborating Clinics (SLICC) classification criteria. 4. Written informed consent (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study. 1. The subject meets the 2012 SLICC classification criteria for SLE at Visit 1 (i.e., ANA plus 3 other criteria, or ANA plus biopsy-proven lupus nephritis). 2. The subject has been diagnosed with another autoimmune disorder, other than autoimmune thyroid conditions. 3. The subject has fibromyalgia, based on clinical history and exam. 4. The subject has previously been or is currently being treated with oral antimalarial agents including hydroxychloroquine, chloroquine, or quinacrine. 5. The subject is currently or has been treated with immunosuppressive, immune modifying, or cytotoxic medications as listed in Section 7.2. 6. Use of any investigational agent within the preceding 12 months. 7. History of primary immunodeficiency. 8. Active bacterial, viral, fungal, or opportunistic infection. 9. Evidence of infection with human immunodeficiency virus (HIV), Hepatitis B, or Hepatitis C. 10. Concomitant malignancy or history of malignancy with the exception of adequately treated basal or squamous cell carcinoma of the skin, or carcinoma in situ of the cervix. 11. The subject has significant findings on ophthalmological examination that, in the opinion of the examining Ophthalmologist, prevent safe use of hydroxychloroquine. 12. The subject has other contraindications to treatment with hydroxychloroquine including pre-existing ocular disease, hepatic impairment, psoriasis, porphyria, or allergy to the drug or class. 13. Co-morbidities requiring systemic corticosteroid therapy greater than 10 mg of prednisone per day, or equivalent, or a change in corticosteroid dose within the 3 months prior to Visit 1. 14. Starting, stopping, or changing the dose of over the counter or prescription non-steroidal anti-inflammatory drugs (NSAIDs) in the three months prior to Visit 1. 15. Pregnant, breastfeeding, or unwilling to practice birth control during participation in the study. 16. Presence of a condition or abnormality that in the opinion of the Investigator would compromise the safety of the patient or the quality of the data. 17. Inability to comply with the study visit schedule and procedures.

Key
• Diagnosis of ISN/RPS 2003 Class III or IV LN as evidenced by renal biopsy performed within 6 months. Participants may co-exhibit Class V disease in addition to either Class III or Class IV disease
• Urine protein to creatinine ratio greater than or equal to (>/=) 1 on a 24-hour collection
• Other inclusion criteria may apply Key
• Pregnancy or breastfeeding
• Severe renal impairment or the need for dialysis or renal transplantation
• Receipt of an excluded therapy, including any anti-CD20 therapy less than 9 months prior to screening or during screening; or cyclophosphamide, tacrolimus, ciclosporin, or voclosporin during the 2 months prior to screening or during screening
• Significant or uncontrolled medical disease which, in the investigator's opinion, would preclude patient participation
• Known active infection of any kind or recent major episode of infection
• Intolerance or contraindication to study therapies
• Other exclusion criteria may apply

Key
• Prior participation in an Aimmune AR101 clinical study or any future clinical study that identifies ARC008 as a follow-on study option in the protocol
• Written informed consent and/or assent from subjects/guardians as appropriate
• Use of effective birth control by sexually active female subjects of childbearing potential Key
• Did not complete a minimum of 3 months of AR101 maintenance therapy if the subject was assigned to AR101 in the parent study
• Early discontinuation from the parent study
• In subjects treated with AR101 in the parent study requiring a food challenge, failure to successfully consume at least 300 mg single dose of peanut protein at parent study's exit food challenge

• Age < 1 year at the time of surgery
• Undergoing heart surgery with CPB as part of standard clinical care
• Availability and willingness of the parent/legally authorized representative to provide written informed consent
• < 37 weeks adjusted gestational age at time of surgery
• Any oral or intravenous steroid treatment within two days of surgery
• Any patient receiving any of the following medications within 2 days of surgery: Amphoteracin B, aminoglutethimide, anticholesterases, warfarin, P450 3A4 inducers including (but not limited to) carbamazepine, phenobarbital, phenytoin, rifampin, bosentan and nafcillin or P450 3A4 inhibitors including (but not limited to) clarithromycin, voriconazole, itraconazole, ketoconazole, ciprofloxacin, diltiazem, fluconazole, erythromycin and verapamil.
• Infection contraindicating steroid use
• Preoperative mechanical circulatory support or active resuscitation at the time of randomization
• Emergent surgery precluding steroid administration 8-12 hours before surgery

1. Orthotopic heart transplantation 2. Age < 21 years at time of transplant 3. Stable immunosuppression at the time of randomization with no contraindication to everolimus, tacrolimus, or mycophenolate mofetil 4. Planned follow-up at a study site for the 30 month duration of the study. 5. Subject or legal adult representative capable of providing informed consent (in general, assent will be sought for children aged 12 years or older). 1. Multi-organ transplant (e.g. heart-lung or heart-liver). 2. Known hypersensitivity to everolimus, sirolimus, tacrolimus or mycophenolate mofetil (MMF), or to components of the drug products. 3. Patients on maintenance corticosteroid therapy exceeding a dose equivalent of prednisone 0.1 mg/kg/day at randomization. 4. High-risk for rejection defined as active rejection, recurrent (≥ 2 episodes of grade 2R rejection) cellular rejection, recurrent rejection (≥ 2 episodes of any grade) with hemodynamic compromise, steroid-resistant rejection or unresolved antibody-mediated rejection during the first 6 months post-heart transplant 5. Graft dysfunction (LVEF <40% or wedge pressure >22 mmHg or cardiac index <2.2 L/min/m2) 6. Stage 4 or 5 CKD (eGFR <30 ml/min/1.73 m2) or moderate proteinuria (urine protein to urine creatinine ratio >0.5 mg/mg). 7. Active infection requiring hospitalization or treatment dose medical therapy. 8. Patients with ongoing wound healing problems, clinically significant wound infection requiring continued therapy or other severe surgical complication in the opinion of the Site Principal Investigator. 9. Fasting Serum Cholesterol ≥300 mg/dL OR greater than or equal to 7.75 mmol/L, AND fasting triglycerides ≥2.5x the upper limit of normal (ULN). Note: In case one or both of these thresholds are exceeded, the patient can only be included after initiation of appropriate lipid lowering medication, and reduction of serum cholesterol and triglyceride levels to below exclusion ranges is confirmed. 10. Uncontrolled diabetes mellitus. 11. Diagnosis of post-transplant lymphoproliferative disorder (PTLD) during the first 6 months post-heart transplant. 12. History of non-adherence to medical regimens. 13. Patients who are treated with drugs that are strong inducers or inhibitors of cytochrome P450 3A4 (CYP3A4) and cannot discontinue the treatment 14. Patients who are pregnant or breast-feeding or intend to get pregnant during the study period.

Individuals who meet all of the following criteria are eligible for enrollment as study participants: 1. Participant and/or parent/legal guardian must be able to understand and provide informed consent and/or assent, as applicable; 2. Peanut allergic: participant must meet all of the following criteria to minimize the chance that the participant will develop natural tolerance to peanut over the course of the study: 1. Positive skin prick test (SPT) defined as ≥4 mm wheal greater than saline control) to peanut, 2. Positive peanut immunoglobulin E (IgE), ≥6 kUA/L, at Screening or within three months of Screening, determined by ImmunoCap, and 3. Positive double-blind placebo-controlled food challenge (DBPCFC), defined as experiencing dose-limiting symptoms at a single dose of ≤100 mg of peanut protein. 3. Allergic to at least two of the six other foods (milk, egg, wheat, cashew, hazelnut, walnut): each participant must meet all of the following criteria for at least two of the six other foods to minimize the chance that the participant will develop natural tolerance to at least two of the six other foods over the course of the study: 1. Positive SPT (≥4 mm wheal) to food, 2. Positive food specific IgE (≥6 kUA/L) at Screening or within three months of Screening, determined by ImmunoCap, and 3. Positive DBPCFC, defined as experiencing dose-limiting symptoms at a single dose of ≤300 mg of food protein. 4. With body weight (as measured at Screening) and total serum IgE level (as measured within three months of Screening) suitable for omalizumab dosing; 5. If female of child-bearing potential, must have a negative urine or serum pregnancy test; 6. For women of childbearing potential, must agree to,during the treatment period and for 60 days after the last dose of study drug:
• remain abstinent (refrain from heterosexual intercourse), or
• use acceptable contraceptive methods (barrier methods, or
• oral, injected, or implanted hormonal methods of contraception, or
• other forms of hormonal contraception that have comparable efficacy). 7. Plan to remain in the study area of an OUtMATCH clinical research unit (CRU) during the trial; and 8. Be willing to be trained on the proper use of an epinephrine autoinjector for the duration of the study. Individuals who meet any of the following criteria are not eligible for enrollment as study participants: 1. Inability or unwillingness of a participant and/or parent/legal guardian to give written informed consent and/or assent or comply with the study protocol; 2. Clinically significant laboratory abnormalities at Screening; 3. Dose-limiting symptoms to the placebo portion of the Screening DBPCFC; 4. Sensitivity or suspected/known allergy to any ingredients (including excipients) of the
• active or placebo oral food challenge (OFC) material,
• multi-allergen oral immunotherapy (OIT), or
• drugs related to omalizumab (e.g., monoclonal antibodies, polyclonal gamma globulin).
• Note: Guidance for determination of sensitivity to excipients will be detailed in the study's Manual of Procedures (MOP). 5. Poorly controlled atopic dermatitis (AD) at Screening, per the Principal Investigator's PI's) discretion; 6. Poorly controlled or severe asthma/wheezing at Screening, defined by at least one of the following criteria: 1. Global Initiative for Asthma (GINA) criteria regarding asthma control latest guidelines, 2. History of two or more systemic corticosteroid courses within six months of Screening or one course of systemic corticosteroids within three months of Screening to treat asthma/wheezing, 3. Prior intubation/mechanical ventilation for asthma/wheezing, 4. One hospitalization or Emergency Department (ED) visit for asthma/wheezing within six months of Screening, 5. Forced expiratory volume in one second (FEV1) <80 percent of predicted or FEV1/forced vital capacity (FVC) <75 percent, with or without controller medications (only for participants who are aged seven years or older and are able to perform spirometry), or 6. Inhaled corticosteroid (ICS) dosing of >500 mcg daily fluticasone (or equivalent ICS based on the National Institutes of Health, National Heart, Lung, and Blood Institute (NHLBI) dosing chart). 7. History of severe anaphylaxis to participant-specific foods that will be used in this study, defined as neurological compromise or requiring intubation; 8. Treatment with a burst of oral, intramuscular (IM), or intravenous (IV) steroids of more than two days for an indication other than asthma/wheezing within 30 days of Screening; 9. Currently receiving oral, intramuscular, or intravenous corticosteroids, tricyclic antidepressants, or beta-blockers (oral or topical); 10. Past or current history of eosinophilic gastrointestinal (GI) disease within three years of Screening; 11. Past or current history of cancer, or currently being investigated for possible cancer; 12. Previous adverse reaction to omalizumab; 13. Past or current history of any immunotherapy to any of the foods being treated in this study (e.g., OIT, sublingual immunotherapy [SLIT], EPIT) within 6 months of Screening; 14. Treatment with monoclonal antibody therapy, such as omalizumab (Xolair®), dupilumab (Dupixent®), benralizumab (Fasenra™), mepolizumab (Nucala®), reslizumab (Cinqair®), or other immunomodulatory therapy within six months of Screening; 15. Currently on "build-up phase" of inhalant allergen immunotherapy (i.e., has not reached maintenance dosing). Note: Individuals tolerating maintenance allergen immunotherapy can be enrolled; 16. Inability to discontinue antihistamines for the minimum wash-out periods required for SPTs,or OFCs; 17. Current participation in another therapeutic or interventional clinical trial or participation within 90 days of Screening; 18. Use of investigational drugs within 24 weeks of Screening; 19. Pregnant or breastfeeding, or intending to become pregnant during the study or within 60 days after the last dose of omalizumab or placebo for omalizumab; 20. Has a first-degree relative already enrolled in the study; or 21. Past or current medical problems (e.g., severe latex allergy), history of other chronic diseases (other than asthma/wheezing, AD, or rhinitis) requiring therapy (e.g., heart disease, diabetes), findings from physical assessment, or abnormalities in clinical laboratory testing that are not listed above, which, in the opinion of the PI, may:
• pose additional risks from participation in the study,
• may interfere with the participant's ability to comply with study requirements, or
• may impact the quality or interpretation of the data obtained from the study.

• Have signed the current approved informed consent form. Participants under 18 years of age (in the Netherlands and other applicable regions, participants under 16 years of age) will sign an approved informed assent form and must also have a signed parental/legal guardian consent.
• Have a genotype-confirmed mutation of chemokine (C-X-C motif) receptor 4 (CXCR4) consistent with WHIM phenotype.
• Agree to use a highly effective form of contraception.
• Be willing and able to comply with the protocol.
• Have confirmed ANC ≤400 cells/µL during screening, obtained while participant has no clinical evidence of infection. Inclusion Criteria for the Open-Label Period:
• Completed the Randomized Period; or
• Granted Early Release from the Randomized Period.
• Has known systemic hypersensitivity to the mavorixafor drug substance, its inactive ingredients, or the placebo.
• Is pregnant or breastfeeding.
• Has any medical or personal condition, which in the opinion of the Investigator may potentially compromise the safety or compliance of the participant or may preclude the participant's successful completion of the clinical study. Exclusion Criteria for the Open-Label Period:
• Participants who experience any treatment-limiting toxicity (TLT) will be excluded from participating in the Open-Label Period.

• Study participant must be ≥16 years of age
• Study participants who have moderate to severe disease activity due to either persisting active SLE or due to an acute worsening of SLE in the scope of frequent flaring/relapsing-remitting systemic lupus erythematosus (SLE) despite stable standard of care (SOC) medication defined as: 1. Diagnosed with SLE at least 24 weeks before the Screening Visit (Visit 1) study entry by a qualified physician 2. Classified by 2019 SLE European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) classification criteria for SLE 3. With serological evidence for SLE at Screening as demonstrated by at least 1 of the following: i) Evidence for anti-dsDNA (in central laboratory at Screening) ii) Either complement C3 < lower limit of normal (LLN) OR complement C4 • British Isles Lupus Assessment Group Disease Activity Index 2004 (BILAG 2004) Grade B in ≥2 organ systems and/or a BILAG 2004 Grade A in ≥1 organ systems at Screening and Baseline Visit AND
• Systemic Lupus Erythematosus Disease Activity Index 2000 (SLEDAI-2K) ≥6 at Screening Visit AND
• SLEDAI-2K without labs ≥4 at Baseline Visit e. Receiving the following SOC medication at stable dose:
• Antimalarial treatment in combination with corticosteroids and/or immunosuppressants or as stand-alone treatment if justified OR Treatment with corticosteroids and/or immunosuppressants if anti-malarial treatment is not possible

Exclusion Criteria:

- Study participant has any medical or psychiatric condition (including conditions due to neuropsychiatric systemic lupus erythematosus (SLE)) that, in the opinion of the Investigator, could jeopardize or would compromise the study participant's ability to participate in this study. This includes study participants with a life threatening condition
• Study participant has a history of an anaphylactic reaction to parenteral administration of contrast agents, human or murine proteins, or monoclonal antibodies
• Study participant has a history of malignancy, except the following treated cancers: cervical carcinoma in situ, basal cell carcinoma, or dermatological squamous cell carcinoma
• Study participant has an increased risk for thromboembolic events due to an ongoing heart disease or due to a medical device, including but not limited to vascular graft, valvular heart disease, atrial fibrillation, or a heart rhythm disorder
• Study participant has evidence of human immunodeficiency virus (HIV) infection, agammaglobulinemias, T-cell deficiencies, or human T-cell lymphotropic virus-1 infection
• Study participant had a reactivated latent or opportunistic infection within 12 weeks prior to the first study medication infusion (Visit 2), or is currently receiving suppressive therapy for an opportunistic infection
• Study participants who have received live/live attenuated vaccines within 6 weeks prior to the first study medication infusion
• Study participant has clinically significant active or latent infection
• Study participant has a mixed connective tissue disease, scleroderma, and/or overlap syndrome of these diseases with SLE
• Study participant takes any protocol defined prohibited concomitant medication
• Study participant has previously been randomized within this study or participant has previously been assigned to treatment with dapirolizumab pegol (DZP) in a study evaluating DZP
• Study participant has participated in another study of an IMP within the previous 12 weeks or 5 half-lives of the investigational medicinal product (IMP) whatever is longer or is currently participating in another study of an IMP
• Study participant has chronic kidney failure stage 4, manifested by estimated glomerular filtration rate <30mL/min/1.73m2, or serum creatinine >2.5 mg/dL, or participant has proteinuria >3 g/day, or protein: creatinine ratio >340 mg/mmol at the Screening Visit

• Written informed consent from participant's parent/guardian.
• Age 12-48 months of either sex, any race, any ethnicity.
• A peanut allergy diagnosis with a convincing clinical history of peanut allergy and a serum peanut-specific IgE [UniCAP] > 0.35 kUA/L AND a positive skin prick test to peanut (>3 mm than the negative control) OR are sensitized to peanut (based on a serum IgE [UniCAP] to peanut of > 5 kUA/L) AND a positive skin prick test to peanut (> 3 mm than the negative control) and no known history of ingestion of peanut.
• A positive DBPCFC to 1000 mg of peanut at enrollment.
• History of severe anaphylaxis to peanut, defined as hypoxia, hypotension, or neurologic compromise (cyanosis or SpO2 < 92% at any stage, hypotension, confusion, collapse or loss of consciousness).
• Participation in any interventional study for the treatment of food allergy in the past 6 months.
• Known oat, wheat, or glycerin allergy.
• Eosinophilic or other inflammatory (e.g. celiac) gastrointestinal disease.
• Severe asthma (2007 NHLBI Criteria Steps 5 or 6
•Appendix 2).
• Inability to discontinue antihistamines for skin testing and DBPCFCs.
• Use of omalizumab or other non-traditional forms of allergen immunotherapy (e.g., oral or sublingual) or immunomodulator therapy (not including corticosteroids) or biologic therapy within the past year.
• Use of beta-blockers (oral), angiotensin-converting enzyme (ACE) inhibitors, angiotensin-receptor blockers (ARB) or calcium channel blockers.
• Significant medical condition (e.g., liver, kidney, gastrointestinal, cardiovascular, hematologic, or pulmonary disease) which would make the subject unsuitable for induction of food reactions.

• Diagnosis of gMG [Myasthenia Gravis Foundation of America (MGFA) Class II-IVa] at Screening
• Positive serology for acetylcholine receptor (AChR) autoantibodies
• QMG score ≥ 12 at Screening and Randomization
• No change in corticosteroid dose for at least 30 days prior to Randomization or anticipated to occur during the 12-week Treatment Period
• No change in immunosuppressive therapy, including dose, for at least 30 days prior to Randomization or anticipated to occur during the 12-week Treatment Period
• Thymectomy within 6 months prior to Randomization or scheduled to occur during the 12 week Treatment Period
• History of meningococcal disease
• Current or recent systemic infection within 2 weeks prior to Randomization or infection requiring intravenous (IV) antibiotics within 4 weeks prior to Randomization

• Patients must have histologically confirmed malignancy that is radiologically evaluable and metastatic or unresectable. Eligible tumor types include solid tumors and malignancies in which there is known evidence of clinical activity for single agent PD-1 or PD-L1 antibodies. Nivolumab is Food and Drug Administration (FDA)-approved for the treatment of melanoma, non-small cell lung cancer (NSCLC), Merkel cell cancer, bladder cancer, renal cell carcinoma (RCC), gastric cancer, hepatocellular carcinoma (HCC), cervical cancer, head and neck cancer, Hodgkin lymphoma (HL), metastatic small cell lung cancer (SCLC), and any solid tumor with microsatellite instability (MSI)-high status confirmed. Patients with HL are eligible but must follow standard response criteria. Additional tumor types may be eligible on a case by case basis upon discussion with principal investigator (PI)
• Patients who have previously received other forms of immunotherapy (high-dose [HD] IL-2, IFN, CTLA-4) are allowed. Patients must not have received cytokine immunotherapy for at least 4 weeks before nivolumab administration. Patients who have received prior anti-CTLA4 will be allowed and the washout period is 6 weeks
• Age >= 18 years; children are excluded from this study but may be eligible for future pediatric phase 1 combination trials
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 (Karnofsky >= 60)
• Life expectancy of greater than 12 weeks
• Leukocytes >= 2,000/mcL
• Absolute neutrophil count >= 1,500/mcL
• Platelets >= 100,000/mcL
• Total bilirubin =< 1.5 x institutional upper limit of normal (ULN)
• Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 2.5 x institutional ULN unless the patient has dermatomyositis and in the opinion of the investigator the elevation is due to diabetes mellitus (DM)
• Creatinine ULN OR glomerular filtration rate (GFR) >= 30 mL/min (if using the Cockcroft-Gault formula)
• Human immunodeficiency virus (HIV)-infected patients on effective antiretroviral therapy with undetectable viral load within 6 months are eligible for this trial
• If evidence of chronic hepatitis B virus (HBV) infection, HBV viral load must be undetectable on suppressive therapy if indicated
• If history of hepatitis C virus (HCV) infection, must be treated with undetectable HCV viral load
• Patients with treated brain metastases are eligible if there is no evidence of progression for at least 4 weeks after central nervous system (CNS)-directed treatment, as ascertained by clinical examination and brain imaging (magnetic resonance imaging [MRI] or computed tomography [CT] scan) during the screening period. Patients with new or progressive brain metastases (active brain metastases) or leptomeningeal disease are eligible if the treating physician determines that immediate CNS specific treatment is not required and is unlikely to be required for at least 4 weeks (or scheduled assessment after the first cycle of treatment), and a risk-benefit analysis (discussion) by the patient and the investigator favors participation in the clinical trial
• The effects of nivolumab on the developing human fetus are unknown. For this reason, women of child-bearing potential (WOCBP) and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. WOCBP receiving nivolumab will be instructed to adhere to contraception for a period of 5 months after the last dose of investigational product. Men receiving nivolumab and who are sexually active with WOCBP will be instructed to adhere to contraception for a period of 7 months after the last dose of investigational product. Women of childbearing potential must have a negative serum or urine pregnancy test (minimum sensitivity 25 IU/L or equivalent units of human chorionic gonadotropin [HCG]) within 24 hours prior to the start of nivolumab. Women must not be breastfeeding. Women who are not of childbearing potential (i.e., who are postmenopausal or surgically sterile as well as azoospermic men) do not require contraception. WOCBP is defined as any female who has experienced menarche and who has not undergone surgical sterilization (hysterectomy or bilateral oophorectomy) or who is not postmenopausal. Menopause is defined clinically as 12 months of amenorrhea in a woman over 45 in the absence of other biological or physiological causes. In addition, women under the age of 55 must have a documented serum follicle stimulating hormone (FSH) level less than 40 mIU/mL. These durations have been calculated using the upper limit of the half-life for nivolumab (25 days) and are based on the protocol requirement that WOCBP use contraception for 5 half-lives plus 30 days, and men who are sexually active with WOCBP use contraception for 5 half-lives plus 90 days. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she (or the participating partner) should inform the treating physician immediately
• Ability to understand and the willingness to sign a written informed consent document
• Patients who have had chemotherapy or radiotherapy within 4 weeks (6 weeks for nitrosoureas or mitomycin C) prior to entering the study or those who have not recovered from adverse events (AEs) due to agents administered more than 4 weeks earlier have not resolved or stabilized. Palliative (limited-field) radiation therapy (RT) is permitted, if all of the following criteria are met:
• Repeat imaging demonstrates no new sites of bone metastases
• The lesion being considered for palliative radiation is not a target lesion
• Patients with prior therapy with an anti-PD-1 or anti-PD-L1
• Patients with prior allogeneic hematologic transplant
• Patients who are receiving any other investigational agents
• Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
• Patients who have had evidence of active or acute diverticulitis, intra-abdominal abscess, gastrointestinal (GI) bleeding, obstruction, and abdominal carcinomatosis which are known risk factors for bowel perforation should be evaluated for the potential need for additional treatment before coming on study. For the IBD (UC and CD) cohort, an endoscopic assessment, disease activity index, and disease specific inclusion/exclusion criteria will substitute for these factors in determining eligibility with the exception of abdominal carcinomatosis, which should prompt further evaluation

• Diagnosed with RRMS per revised McDonald criteria (2017) with an EDSS score ≤ 6.5 at screening
• Neurologically stable with no evidence of relapse within the 28 days before signing the informed consent form (ICF)
• Either not currently receiving disease modifying MS therapy, or currently using fumarate drugs (dimethyl fumarate or diroximel fumarate)
• Patients must use a highly effective method of birth control or are sterile or postmenopausal as confirmed by study Investigator
• Patient has signed and understands the ICF
• Diagnosis of primary progressive MS or secondary progressive MS
• Uncontrolled or significant medical conditions (including active infection or chronic hepatitis) which, in the opinion of the Investigator, preclude participation
• Patients treated with glatiramer acetate, parenteral steroids or adrenocorticotropic hormone, β-interferon, plasma exchange, fingolimod, ozanimod, or siponimod within the 3 months prior to first dose
• Patients treated with cytotoxic agents (including, but not limited to, cladribine, mitoxantrone, cyclophosphamide, azathioprine, and methotrexate), laquinimod, teriflunomide, or IV gamma globulin within 12 months prior to first dose
• Patients treated with monoclonal antibody therapy (including natalizumab, daclizumab, rituximab, ofatumumab, and ocrelizumab) within 24 months prior to first dose
• Patients previously treated with alemtuzumab, total lymphoid irradiation, mesenchymal stem cell or hematopoietic stem cell transplantation, or tolerance-inducing therapies for MS
• Contraindication to or inability to undergo gadolinium-enhanced magnetic resonance imaging (MRI) scan
• Use of any investigational drug or experimental procedure within previous 6 months that would interfere with the assessment of ANK-700
• Patients who are pregnant or breastfeeding

• Subjects who completed the PEPITES study.
• Generalized dermatologic disease (for example, active atopic dermatitis, uncontrolled generalized active eczema, ichthyosis vulgaris) extending widely on the skin and especially on the back or arms with no intact zones to apply the Viaskin patches.
• Diagnosis of asthma that evolved to severe, unstable or uncontrolled asthma.

• 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: 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: 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
• 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 central nervous system (CNS) involvement is defined as tumor that is measurable in two perpendicular diameters on magnetic resonance imaging (MRI) and visible on more than one slice
• 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 8 weeks (56 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 tumor that is measurable in two perpendicular diameters on MRI and visible on more than one slice
• 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, 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

Key
• Male or female from 1-3 years of age;
• Physician-diagnosed peanut allergy;
• Peanut-specific IgE level > 0.7 kU/L;
• Positive peanut SPT with a largest wheal diameter ≥ 6 mm;
• Positive DBPCFC at ≤ 300 mg peanut protein; Key
• Uncontrolled asthma;
• History of severe anaphylaxis to peanut;
• Prior immunotherapy to any food or other immunotherapy;
• Generalized severe dermatologic disease;

Inclusion Criteria Each prospective participant must meet ALL of the following inclusion criteria in order to be eligible for this study:
• Signed written informed consent granted prior to initiation of any study-specific procedures
• For the dose escalation cohorts, relapsed or refractory (R/R) participants with a diagnosis of B-cell Non-Hodgkin's lymphoma (NHL), chronic lymphocytic leukemia (CLL)/ small lymphocytic lymphoma (SLL) and Waldenstrom macroglobulinemia (WM) who have received at least two prior systemic therapies . Participants must have failed or are intolerant to standard therapies and cannot be a candidate for standard salvage regimens. Participants with low grade lymphoma must be progressing and requiring treatment
• For the expansion cohorts, the following criteria must be met:
• Cohort A: R/R CLL/SLL participants with at least 2 prior systemic therapies and previously treated with a covalent Bruton's tyrosine kinase inhibitor (BTKi) who must have a documented Bruton's tyrosine kinase (BTK) mutation on C481 residue
• Cohort B: R/R CLL/SLL participants who have failed or were intolerant to a BTKi with documentation of the absence of BTK mutation on C481 residue. In this study, intolerance to standard therapy is defined as having experienced a grade 3 or higher adverse event that was caused by the standard therapy and resulted in treatment discontinuation
• Cohort C: Richter's transformation (RT) participants who have failed at least one prior therapy
• Cohort D: Follicular Lymphoma (FL) participants who have failed at least 2 prior systemic therapies and are histology grade 1, 2, or 3A
• Cohort E: Mantle Cell Lymphoma (MCL) participants who have failed at least 2 prior systemic therapies
• Cohort F: Marginal Zone Lymphoma (MZL) participants who have failed at least 2 prior systemic therapies
• Cohort G: High-grade B-cell lymphoma participants who have failed at least 2 prior systemic therapies and have known MYC and BCL2 and/or BCL6 translocations
• Cohort H: WM participants who have failed at least 2 prior systemic therapies
• Disease status requirement:
• For CLL participanst symptomatic disease that mandates treatment (Hallek et al. 2018)
• For B-cell NHL participants, measurable disease by imaging scan
• For WM, serum immunoglobulin M (IgM) with a minimum IgM level of ≥ 2 times the upper limit of normal (ULN)
• Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
• Good organ function
• Creatinine clearance of ≥ 60 mL/min as estimated by the Cockcroft-Gault equation or by 24-hour urine collection
• Total bilirubin ≤ 1.5 x institutional ULN (total bilirubin of ≤ 3 x institutional ULN in participants with documented Gilbert's syndrome)
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 2.5 × institutional ULN
• Platelet count ≥ 50,000/µL
• Absolute neutrophil count (ANC) ≥ 1000/µL
• Hemoglobin (Hgb) ≥ 8.0 g/dL, stable for ≥ 1 week.
• For men and women of child-bearing potential, willing to use adequate contraception (e.g., latex condom, cervical cap, diaphragm, abstinence, etc.) for the entire duration of the study
• Female participants of child-bearing potential must have a negative serum pregnancy test within 14 days of the first day of drug dosing
• Ability to swallow oral medications without difficulty Exclusion Criteria Potential participants who meet ANY of the following exclusion criteria are not eligible for enrollment into this study:
• Had immunotherapy, radiotherapy, radioimmunotherapy, biological therapy, chemotherapy, or treatment with an investigational product within 5 half-lives or four weeks (whichever is shorter) prior to treatment initiation, or oral therapy within 5 half-lives or one week (whichever is shorter) prior to treatment initiation
• Transformation of follicular lymphoma (FL) to a more aggressive subtype of lymphoma or grade 3b FL
• Participants currently being treated with the following drugs:
• cytochrome P 450 (CYP) 2C9 substrates with a narrow therapeutic index (such as warfarin, phenytoin)
• CYP 2C8 substrates with a narrow therapeutic index (such as paclitaxel)
• CYP 2C19 substrates with a narrow therapeutic index (such as S-mephenytoin)
• CYP 2D6 substrates with a narrow therapeutic index (such as thioridazine, pimozide)
• P-gp substrates with a narrow therapeutic index (such as digoxin) Note: A washout period of at least 5 times the half-life after the last dose of any of the above treatments is required for a participant to be eligible for study enrollment
• Prior allogeneic bone marrow transplant
• Active central nervous system (CNS) involvement
• Pregnant or breast-feeding women
• Has significant, ongoing co-morbid conditions which would preclude safe delivery of the study drug
• Uncontrolled illness including but not limited to ongoing or active infection, symptomatic congestive heart failure (New York Heart Association [NYHA] Class III or IV heart failure), unstable angina pectoris, cardiac arrhythmia, cardiac infarction in the past six months, and psychiatric illness that would limit compliance with study requirements
• QT corrected (QTc) prolongation (defined as a QTc > 450 msecs) or other significant electrocardiogram (ECG) abnormalities including 2nd degree atrioventricular (AV) block type II, 3rd degree AV block, or bradycardia (ventricular rate less than 50 beats/min). If the screening ECG has a QTc > 450 msecs, the ECG can be submitted for a centralized, cardiologic evaluation.
• Active human immunodeficiency virus (HIV) infection, Hepatitis B, or Hepatitis C infection.
• Other medical or psychiatric illness or organ dysfunction which, in the opinion of the Investigator, would either compromise the participant's safety or interfere with the evaluation of the safety of the study agent
• History of prior cancer within < 1 year, except for basal cell or squamous cell carcinoma of the skin, cervical cancer in situ or other in situ carcinomas

1. Infants with SCID, either typical or leaky or Omenn syndrome. 1. Typical SCID is defined as either of the following
• Absence or very low number of T cells (CD3+ T cells <300/microliter AND no or very low T cell function (<10% of lower limit of normal) as measured by response to phytohemagglutinin OR
• Presence of maternally derived T cells 2. Leaky SCID is defined as the following • Absence of maternally derived T cells • AND either one or both of the following (i, ii): i) <50% of lower limit of normal T cell function as measured by response to PHA OR <30% of lower limit of normal T cell function as measured by response to CD3 ii) Absent or <10% of lower limit of normal proliferative responses to candida and tetanus toxoid antigens (must document post vaccination or exposure for this criterion to apply) • AND at least two of the following (i through iii): i) CD3 T cells < 1500/microliter ii) >80% of CD3+ or CD4+ T cells are CD45RO+ AND/OR >80% of CD3+ or CD4+ T cells are CD62L negative AND/OR >50% of CD3+ or CD4+ T cells express HLA-DR (at < 4 years of age) AND/OR are oligoclonal T iii) Low TRECs and/or the percentage of CD4+/45RA+/CD31+ or CD4+/45RA+/CD62L+ cells is below the lower level of normal. 3. Omenn syndrome • Generalized skin rash
• Maternal lymphocytes tested for and not detected.
• >80% of CD3+ or CD4+ T cells are CD45RO+ AND/OR >80% of CD3+ or CD4+ T cells are CD62L negative AND/OR >50% of CD3+ or CD4+ T cells express HLA-DR (<2 years of age)
• Absent or low (up to 30% lower limit of normal (LLN)) T cell proliferation to antigens (Candida, tetanus) to which the patient has been exposed IF: Proliferation to antigen was not performed, but at least 4 of the following 8 supportive criteria, at least one of which must be among those marked with an asterisk (*) below are present, the patient is eligible as Omenn Syndrome. 1. Hepatomegaly 2. Splenomegaly 3. Lymphadenopathy 4. Elevated IgE 5. Elevated absolute eosinophil count 6. *Oligoclonal T cells measured by CDR3 length or flow cytometry (upload report) 7. *Proliferation to PHA is reduced to < 50% of lower limit of normal (LLN) or SI < 30 8. *Low TRECs and/or percentage of CD4+/RA+ CD31+ or CD4+/RA+ CD62L+ cells below the lower level of normal 2. Documented mutation in one of the following SCID-related genes a. Cytokine receptor defects (IL2RG, JAK3) b. T cell receptor rearrangement defects (RAG1, RAG2) 3. No available genotypically matched related donor (sibling) 4. Availability of a suitable donor and graft source 1. Haploidentical related mobilized peripheral blood cells 2. 9/10 or 10/10 allele matched (HLA-A, -B, -C, -DRB1, -DQB1) volunteer unrelated donor mobilized peripheral blood cells 5. Age 0 to 2 years at enrollment Note: to ensure appropriate hepatic metabolism, age at time of busulfan start: For IL2RG/JAK3: 8 weeks For RAG1/RAG2: 12 weeks 6. Adequate organ function defined as: 1. Cardiac: Left ventricular ejection fraction (LVEF) at rest ≥ 40% or, shortening fraction (SF) ≥ 26% by echocardiogram. 2. Hepatic: Total bilirubin < 3.0 x the upper limit of normal (ULN) for age (patients who have been diagnosed with Gilbert's Disease are allowed to exceed this limit) and AST and ALT < 5.0 x ULN for age. 3. Renal: GFR estimated by the updated Schwartz formula ≥ 90 mL/min/1.73 m2. If the estimated GFR is < 90 mL/min/1.73 m2, then renal function must be measured by 24-hour creatinine clearance or nuclear GFR, and must be > 50 mL/min/1.73 m2. 4. Pulmonary No need for supplemental oxygen and O2 saturation > 92% on room air at sea level (with lower levels allowed at higher elevations per established center standard of care). 1. Presence of any serious life-threatening or opportunistic infection at time of enrollment and prior to the initiation of the preparative regimen. Serious infections as defined below that occur after enrollment must be reported immediately to the Study Coordinating Center, and enrollment will be put on hold until the infection resolves. Ideally enrolled subjects will not have had any infection. If patients have experienced infections, these must have resolved by the following definitions: a. Bacterial i. Positive culture from a sterile site (e.g. blood, CSF, etc.): Repeat culture(s) from same site must be negative and patient has completed appropriate course of antibacterial therapy (typically at least 10 days). ii. Tissue-based clinical infection (e.g. cellulitis): Complete resolution of clinical signs (e.g. erythema, tenderness, etc.) and patient has completed appropriate course of antibacterial therapy (typically at least 10 days). iii. Pneumonia, organism not identified by bronchoalveolar lavage: Complete resolution of clinical signs (e.g. tachypnea, oxygen requirement, etc.) and patient has completed appropriate course of antibacterial therapy (typically at least 10 days). If possible, radiographic resolution should also be demonstrated. b. Fungal i. Positive culture from a sterile site (e.g. blood, CSF, etc.): Repeat culture(s) from same site is negative and patient has completed appropriate course of antifungal therapy (typically at least 14 days). The patient may be continued on antifungal prophylaxis following completion of the treatment course. c. Pneumocystis i. Complete resolution of clinical signs (e.g. tachypnea, oxygen requirement, etc.) and patient has completed appropriate course of therapy (typically at least 21 days). If possible, radiographic resolution should also be demonstrated. The patient may be continued on prophylaxis following completion of the treatment course. d. Viral i. Viral PCRs from previously documented sites (blood, nasopharynx, CSF) must be re-tested and are negative. ii. If re-sampling a site is not clinically feasible (i.e. BAL fluid): Complete resolution of clinical signs (e.g. tachypnea, oxygen requirement, etc.). If possible, radiographic resolution should also be demonstrated. 2. Patients with HIV or HTLV I/II infection will be excluded.

1. Have a relapsing form of multiple sclerosis (RMS; to include RRMS or active secondary progressive MS) 2. Have had an inadequate response to, or are unable to tolerate, an alternate drug indicated for the treatment of MS 3. Are willing and able to receive at least 2 lumbar punctures 4. Capable of giving signed informed consent 1. Have any contraindication for lumbar puncture or any other comorbid conditions that preclude participation 2. Are infected with human immunodeficiency virus (HIV) 3. Have active chronic infections (e.g. hepatitis or tuberculosis) 4. Have been previously treated with cladribine 5. Have previously been treated with ocrelizumab, alemtuzumab, rituximab, or daclizumab 6. Have received treatment with natalizumab during the last 6 months 7. Are currently receiving immunosuppressive or myelosuppressive therapy, e.g., methotrexate, cyclophosphamide, cyclosporine or azathioprine, or chronic treatment with systemic corticosteroids 8. Have moderate or severe hepatic or renal impairment 9. Are pregnant or unwilling or unable to use effective contraception during cladribine tablets dosing and for 6 months after the last dose in each treatment course 10. Are intending to breastfeed on a cladribine tablet treatment day and/or during the 10 days after the last cladribine tablet dose.

• Diagnosed with cutaneous lupus erythematosus and/or systemic lupus erythematosus by clinical, laboratory, and histopathological findings
• Ability to speak and read English or Spanish at a 6th grade reading level (a translator will be available with additional consent forms in Spanish)
• Ability to give written informed consent
• Less than 18 years of age, since the characteristics of the disease in these subjects could be very different
• Due to a medication, in which its discontinuation results in the resolution of cutaneous lupus, since the characteristics of the disease in these subjects could be very different
• Medical conditions who do not warrant a skin biopsy
• Unable to give written, informed consent or undergo a skin biopsy and/or venipuncture for any other reason

Strata A, B, and C (Part 1
•Retrospective Study)-
• Individuals with Severe Combined Immune Deficiency (SCID) diagnosis who: --were treated at a location participating in this consortium from 1968 until present, and --are not enrolled in RDCRN PIDTC-6901 (ClinicalTrials.gov ID: NCT01186913).
• Subjects who received HCT/GT/ERT prior to the present date are eligible for the retrospective study. The enrollment criteria for subjects who died prior to definitive therapy are the same as for Strata A, B and C. Stratum A, Typical SCID:
• Individuals who meet the following inclusion criteria and who received HCT are eligible for enrollment into Stratum A of the study:
• Absence or very low number of T cells (CD3 T cells < 300/microliter), and no or very low T cell function (< 10% of lower limit of normal) as measured by response to phytohemagglutinin (PHA) or cells of maternal origin present.
• If maternal cells are present but the patient does not meet criteria for very low T cell function as defined, the assigned reviewers for the potential subject, and if necessary, the full PID-SCID RP will review the laboratory report to determine if criteria of maternal engraftment are met for Protocol 6902.
• Laboratory report of testing for maternal engraftment is required, for evaluation by the PID-SCID RP. Stratum B, Leaky SCID, Omenn Syndrome, Reticular Dysgenesis: Individuals who meet the following criteria are eligible for enrollment into Stratum B of the study: Leaky SCID-
• Maternal lymphocytes tested for and not detected and,
• Either one or both of the following (a,b): a) < 50% of lower limit of normal T cell function (as measured by response to PHA OR < 50% of lower limit of normal T cell function as measured by response to CD3/CD28 antibody, b) Absent or < 30% lower limit of normal proliferative responses to candida and tetanus toxoid antigens postvaccination or exposure,
• AND at least one of the following (a through e): 1. Reduced number of CD3 T cells, 2. > 80% of CD3+ or CD4 T cells are CD45RO+,
• AND/OR >80% of CD3+ or CD4+ T cells are,CD62L negative,
• AND/OR >50% of CD3+ or CD4+ T cells express HLA-DR (at < 4 years of age),
• AND/OR are oligoclonal T cells. c) Hypomorphic mutation in IL2RG in a male, or homozygous hypomorphic mutation or compound heterozygosity with at least one hypomorphic mutation in an autosomal SCID-causing gene. d) Low TRECs and/or the percentage of CD4+/45RA+/CD31+ or CD4+/45RA+/CD62L+ cells is below the lower limit of normal. e) Functional testing in vitro supporting impaired, but not absent, activity of the mutant protein,
• AND does not meet criteria for Omenn Syndrome,
• AND does not have known selective loss of lymphocytes, Ataxia- Telangiectasia, or congenital heart defect associated with lymphopenia, unless a SCID genotype is also present. Omenn Syndrome (OS):
• Generalized skin rash,
• Maternal engraftment tested for and not detected,
• Absent or low (up to 30% of normal) T cell proliferation to antigens to which the patient has been exposed.
• If the proliferation to antigen was not performed, but at least 4 of the following 10 supportive criteria, at least one of which must be among those marked with an asterisk (*) are present, the patient is eligible: hepatomegaly; splenomegaly; lymphadenopathy; elevated IgE; elevated absolute eosinophil count; *oligoclonal T cells measured by CDR3 length or flow cytometry >80% of CD4+ T cells are CD45RO+ ;*proliferation to PHA is reduced <50% of lower limit of normal or SI <30; *proliferative response in mixed leukocyte reaction is reduced to increment cpm < 20% or SI <20; hypomorphic mutation to SCID causing gene; low TRECs and/or percentage of CD 4+/ RA+/CD31+; or CD4+/RA+/CD62L+ cells below the lower limit of normal. Reticular Dysgenesis (RD):
• Absence or very low number of T cells (CD3 T cells <300/microliter),
• No or very low (<10% of lower limit of normal) T cell function (as measured by response to phytohemagglutinin (PHA),
• Severe congenital neutropenia (absolute neutrophil count <200/microliter),
• AND at least one of the following:
• Sensorineural deafness and/or absence of granulopoiesis at bone marrow examination and/or a deleterious AK2 mutation,
• absence of granulopoiesis on bone marrow examination; a pathogenic mutation in the adenylate kinase 2 (AK2) gene identified. Stratum C, SCID with Non-HCT Treatments: -Individuals who meet the following criteria and were treated with PEG-ADA or gene therapy with autologous modified cells are eligible for enrollment into Stratum C (SCID with non-HCT treatments) of the study-
•Any SCID patient previously treated with a thymus transplant (includes intention to treat with HCT, as well as PEG-ADA ERT or gene therapy). Strata A, B, and C (Part 2
•Cross-Sectional Study): Patient inclusion criteria for the cross sectional study: Eligibility for Strata A, B and C are the same as for the retrospective study except that all the patients in the cross-sectional study are currently surviving and are at least 2 years post the most recent class of therapy. Parts 1 and 2
•Retrospective and Cross-Sectional Studies -
• Lack of appropriate testing to rule out HIV infection after 1997 (p24 antigen or more sensitive) or other cause of secondary immunodeficiency,
• Presence of DiGeorge syndrome,
• Most patients with other PIDs such as nucleoside phosphorylase deficiency, ZAP70 deficiency, CD40 ligand deficiency, NEMO deficiency, XLP, cartilage hair hypoplasia or ataxia telangiectasia will not meet the inclusion criteria for Stratum A, B, or C above; however, a patient with one of the above may meet the inclusion criteria for Stratum B and if so will be included-
• MHC Class I and MHC Class II antigen deficiency are excluded,
• Metabolic conditions that imitate SCID or related disorders such as folate transporter deficiency, severe zinc deficiency, transcobalamin deficiency.

• Participant Inclusion Criteria (Part 1
•Longitudinal Analysis)
• CGD Patients Undergoing Transplant 1995 to Present with Birth Year In or After 1988 1. CGD Patients will be Defined by both Defective Neutrophil NADPH Oxidase Function and by Clinical History Consistent with CGD Patients must have both of: A functional assay demonstrating abnormal NADPH oxidase function (see A below); AND Clinical history consistent with CGD (see B below). ************************************************************************* Patients must have both "A" and "B": A. Function: Assays of NADPH Oxidase Function I. Dihydrorhodamine (DHR) Assay:
• Blood sample was obtained at a time when patient was clinically stable and not critically ill, with control samples performed simultaneously indicating a qualified assay; and
• Assay unequivocally demonstrates CGD with an stimulation index (SI) SI < 35 or equivalent. Assay report, including mean fluorescence intensity (MFI) from unstimulated and stimulated samples and gating strategy, must be de-identified and provided. OR II. Nitroblue Tetrazolium Oxidation Test (NBT): o Diagnostic of CGD (reported as reduced granulocyte oxidative response). Report must be de-identified and provided. AND B. Clinical History: One or More of the Following:
• Severe and/or recurrent infection (liver, perirectal or lung abscess; pneumonia; adenitis; or osteomyelitis) due to, for example, Staphylococcus aureus, Burkholderia sp, Serratia marcescens, non-albicans Candida sp, Aspergillus sp or other mold; or Nocardia sp or other deep tissue infection characteristic of CGD
• Sterile granulomatous disease in respiratory, gastrointestinal or urogenital tracts; or Crohn's disease-like colitis
• A family history consistent with either X-linked or autosomal recessive CGD In cases where either functional assay (A) or history (B) is equivocal, one or more of the following may be used to confirm a diagnosis of CGD: C. Absent or significantly reduced in expression or abnormal size of any of the 5 phox components (gp91 phox, p47 phox, p22 phox, p67phox, and p40phox) of NADPH oxidase, by either:
• Western blot
• Northern blot OR D. Mutation in a gene encoding one of the 5 phox components (gp91 phox, p47 phox, p22 phox, p67 phox, and p40 phox) of NADPH oxidase that is predictive of a decreased or absent oxidative burst. (Nonsense, frameshift, or previously described missense mutation associated with CGD). Molecular Diagnosis is Desirable In addition, molecular diagnosis (gene sequencing and expression analysis) of CGD is desirable and should be performed when possible. 2. Further Characterization of Oxidase Level, Longitudinal Study, Prospective Cohort Patients who are to undergo transplantation during the study period must be further characterized as oxidase-null or oxidase positive by level of oxidase production by either:
• DHR assay stimulation Index: where SI ≤ 2.5 will be classified as oxidase-null CGD. Those with SI > 2.5 will be classified as oxidase positive CGD. A single validated test that is accepted by the PID-CGD Review Panel is adequate, but testing on two occasions for validation is desirable. OR
• Ferricytochrome C reduction assay of granulocytes with O2 < 2.3 nmoles /106 cells/h classified as oxidase-null CGD. A single validated test that is accepted by the PID-CGD Review Panel is adequate, but testing on two occasions for validation is desirable. OR o Genetic sequencing reporting a mutation that is unequivocally associated to absent oxidase production. (e.g. null mutations) will be classified as oxidase-null CGD (See discussion in Appendix I for how family history, genotype and CGD mutation information will be applied to assigning patients lacking any quantitative oxidase activity measurements to residual oxidase-null or residual oxidase-positive groups). 3. Longitudinal Study, Retrospective Cohort Patients who have already been transplanted will be included regardless of whether further characterization by oxidase level (or genotype/mutation data) is possible or not.
• Non-Transplanted CGD Patients with Birth Year In or After 1988 A non-transplant (conventional therapy) group of CGD subjects will be enrolled in the longitudinal study. The non-transplant subjects will be selected from the potentially eligible (retrospective) patient cohort with diagnosis of CGD treated with conventional non-transplant therapy. Participating sites will enter their entire retrospective cohort of CGD patients having birth year in or after 1988 into the registration cohort for this protocol. Baseline for both non-transplant subjects and HCT subjects for the purpose of comparing survival will be the year of birth. However, for non-transplant subjects, many of the detailed analyses such as infection and autoimmune complication rates will be assessed in the year preceding the date of last contact.
• Participant Inclusion Criteria (Part 2
•Cross-Sectional Analysis) To participate in the Cross-Sectional Analysis, patients must have previously been enrolled into the Longitudinal Analysis of Protocol 6903. All transplanted subjects in the Cross-Sectional Analysis are surviving and shall have at least 3 years of follow-up post-transplant to be included. Non-transplanted CGD subjects will become eligible for consideration for the Cross-Sectional Analysis if they were eligible and enrolled in the retrospective cohort of the Longitudinal Analysis, and if/when they are > 3 years post-diagnosis of CGD. Provision of written informed consent will be required for inclusion in the Cross-Sectional Analysis.
• Participant Exclusion Criteria (Longitudinal and Cross- Sectional Analyses)
• Presence of other primary immunodeficiency syndromes that do not meet the clinical and laboratory criteria for CGD.
• Rac2 Deficiency
• Myeloperoxidase Deficiency (MPO Deficiency)
• Glutathione deficiency
• Leukocyte adhesion deficiency syndrome
• Non-transplant subjects:
• The above exclusions pertain.
• In addition, non-transplant subjects will be excluded if the only assessment of oxidase function available is the nitroblue tetrazolium (NBT) test (a non-quantitative test).

1. Diagnosis of Multiple Sclerosis , ADEM, anti-MOG antibody associated CNS demyelination 2. Age 12 to 18 inclusive at time of enrollment 3. Ability of parent or legal guardian to provide informed consent if participant is under 18. 4. Ability of patients age 12 and older to give assent 5. Completion of the signed HIPPA authorization form by a parent or legal guardian or by participants (18 years of age). 1. Known history of traumatic brain injury that required medical care 2. Non-English speaking (based on standardized neuropsychological testing and questionnaires) 3. Claustrophobic, pregnant, the presence of metallic braces, implants or medical devices that are unsafe at 3T or 7T and/or interfere with the MRI/MRS signals

Stratum A: Typical SCID (formerly referred to as Classic SCID)- -Subjects who meet the following inclusion criteria and the intention is to treat with allogeneic hematopoietic cell transplant (HCT) are eligible for enrollment into Stratum A (Typical SCID) of the study:
• Absence or very low number of T cells (CD3 T cells <300/microliter) AND
• No or very low T cell function (<10% of lower limit of normal) as measured by response to phytohemagglutinin (PHA) OR
• T cells of maternal origin present. Stratum B: Leaky SCID, Omenn Syndrome, Reticular Dysgenesis- -Subjects who meet the following criteria and the intention is to treat with HCT are eligible for enrollment into Stratum B: Leaky SCID:
• Maternal lymphocytes tested for and not detected AND
• Either one or both of the following (a,b) :
• a.) <50% of lower limit of normal T cell function as measured by response to PHA, OR response to anti-CD3/CD28 antibody
• b.) Absent or <30% of lower limit of normal proliferative responses to candida and tetanus toxoid antigens
• AND at least two of the following (a through e):
• a.) Reduced number of CD3 T cells
• age ≤2 years: <1500/microliter
• age >2 years and ≤4 years: <800/microliter
• age >4 years: <600/microliter
• b.) ≥80% of CD3+ or CD4+ T cells that are CD45RO+
• AND/OR >80% of CD3+ or CD4+ T cells are CD62L negative
• AND/OR >50% of CD3+ or CD4+T cells express HLA-DR (at <4 years of age)
• AND/OR are oligoclonal T cells
• c.) Hypomorphic mutation in IL2RG in a male, or homozygous hypomorphic mutation or compound heterozygosity with ≥1 hypomorphic mutation in an autosomal SCID-causing gene
• d.) Low T Cell Receptor Excision Circles (TRECs) and/or the percentage of CD4+/45RA+/CD31+ or CD4+/45RA+/CD62L+ cells is below the lower limit of normal.
• e.) Functional testing in vitro supporting impaired, but not absent, activity of the mutant protein, AND
• Does not meet criteria for Omenn Syndrome. Omenn Syndrome:
• Generalized skin rash
• Maternal lymphocytes tested for and not detected; --Note: If maternal engraftment was not assessed and ruled out, the subject is not eligible as Omenn Syndrome.
• ≥80% of CD3+ or CD4+ T cells are CD45RO+ AND/OR
• 80% of CD3+ or CD4+T cells are CD62L negative AND/OR
• 50% of CD3+ or CD4+ T cells express HLA-DR (at <2 years of age);
• Absent or low (< 30% lower limit of normal) T cell proliferation response to antigens (Candida, tetanus) to which the subject has been exposed NOTE: If proliferation to antigen was not performed, but at least 4 of the following 9 supportive criteria, at least one of which must be among those marked with an asterisk (*) below are present, the subject is eligible as Omenn Syndrome:
• Hepatomegaly
• Splenomegaly
• Lymphadenopathy
• Elevated IgE
• Elevated absolute eosinophil count
• *Oligoclonal T cells measured by CDR3 length or flow cytometry
• *Proliferation to PHA is reduced <50% of lower limit of normal or SI <30
• *Hypomorphic mutation in a SCID causing gene
• Low TRECS and/or the percentage of CD4+/45RA+/CD31+ or CD4+/45RA+/CD62L+ cells is below the lower limit of normal. Reticular Dysgenesis:
• Absence or very low number of T cells (CD3 <300/µL
• No or very low (<10% lower limit of normal) T cell response to PHA
• Severe neutropenia (absolute neutrophil count < 200 /µL) AND
• ≥2 of the following (a,b,c):
• a.) Sensori-neural deafness
• b.) Deficiency of marrow granulopoiesis on bone marrow examination
• c.) A pathogenic mutation in the adenylate kinase 2 (AK2) gene identified. Stratum C: Subjects who meet the following criteria and the intention is to treat with therapy other than allogeneic HCT, primarily PEG-ADA ERT or gene therapy with autologous modified (gene transduced) cells, are eligible for enrollment into Stratum C:
• ADA Deficient SCID with intention to treat with PEG-ADA ERT
• ADA Deficient SCID with intention to treat with gene therapy
• X-linked SCID with intention to treat with gene therapy
• Any SCID patient previously treated with a thymus transplant (includes intention to treat with HCT, as well as PEG-ADA ERT or gene therapy)
• Any SCID patient who received therapy for SCID deemed "non-standard" or "investigational", including in utero procedures. -Subjects who meet any of the following exclusion criteria are disqualified from enrollment in Strata A, B, or C of the study:
• Presence of an Human Immunodeficiency Virus (HIV) infection (by PCR) or other cause of secondary immunodeficiency
• Presence of DiGeorge syndrome
• MHC Class I and MHC Class II antigen deficiency, and
• Metabolic conditions that imitate SCID or related disorders such as folate transporter deficiency, severe zinc deficiency or transcobalamin deficiency.

• Diagnosis of myasthenia gravis (MG) with generalized muscle weakness meeting the clinical criteria for generalized myasthenia gravis (gMG) as defined by the Myasthenia Gravis Foundation of America (MGFA) Clinical Classification Class II a/b, III a/b, or IVa/b at screening
• Myasthenia Gravis
•Activities of Daily Living (MG-ADL) score of greater than or equal to (>=) 6 at screening and baseline
• Has sufficient venous access to allow drug administration by infusion and blood sampling as per the protocol
• A woman of childbearing potential must have a negative highly sensitive serum (beta-human chorionic gonadotropin [beta-hCG]) at screening and a negative urine pregnancy test at Day 1 prior to administration of study intervention
• A male participant must agree not to donate sperm for the purpose of reproduction during the study and for a minimum 90 days after receiving the last administration of study intervention
• Has any confirmed or suspected clinical immunodeficiency syndrome not related to treatment of his/her gMG, or has a family history of congenital or hereditary immunodeficiency unless confirmed absent in the participant
• Has MGFA Class I disease or presence of MG crisis (MGFA Class V) at screening, history of MG crisis within 1 month of screening, or fixed weakness (and/or 'burnt out' MG)
• Has had a thymectomy within 12 months prior to screening, or thymectomy is planned during the study
• Has known allergies, hypersensitivity, or intolerance to nipocalimab or its excipients
• Has experienced myocardial infarction, unstable ischemic heart disease, or stroke within 12 weeks of screening

1. Patient must have a clinical diagnosis of morphea confirmed by the primary investigator and by histopathological examination. 2. Ages 0-90 years old 3. Children must weigh more than 20 lbs. in order to satisfy Children's Medical Center policy for the maximum amount of blood drawn in a 24 hour period. 4. Patient or legal guardian must be able to speak and read at a 6th grade reading level. 5. Both male and female patients will be eligible 6. All races and ethnic backgrounds will be included 7. Relationships to proband: All patients with morphea will be included. A patient's family history will be reviewed and if there is a family history of morphea or systemic sclerosis then we will give the study patient the investigator's contact information and ask the family member to call the study team to answer any questions and enroll them in the study if they choose to do so. 8. Ability to give informed consent: Patients must be able to give informed consent or they will give assent with parent or guardian consent as a minor to be a part of the morphea registry.
•Patients who have been coded as morphea (701.0), but do not have morphea/localized scleroderma (examples: steroid atrophy, acquired keratoderma, keloids, nephrogenic fibrosing dermopathy, systemic sclerosis, lichen sclerosis)

Key
•Patients with multiple sclerosis (MS) who are newly initiating treatment with dimethyl fumarate (DMF) under routine clinical care are eligible to participate in the study. Key
• Patients with previous exposure to dimethyl fumarate (DMF), Fumaderm (fumaric acid esters), or compounded fumarates.
• Patients participating in other clinical studies. NOTE: Other protocol-defined inclusion/exclusion criteria may apply.