• 22-75 years of age at screening
• Active moderate or severe RA, defined as at least 4/28 tender and 4/28 swollen joints
• Demonstrated an inadequate response, loss of response, or intolerance to 1 or more approved for rheumatoid arthritis biologic or targeted synthetic Disease-Modifying Anti-Rheumatic Drugs (DMARDs), including Janus kinase inhibitors (JAKi)
• Receiving treatment with at least 1 conventional synthetic DMARD for at least 12 weeks and on a continuous non-changing dose and route of administration for at least 4 weeks prior to Screening and able to continue the same stable dose through Week 12
• Untreated or poorly controlled psychiatric illness or history of substance abuse
• Significant immunodeficiency due to underlying illness
• History of stroke or transient ischemic attack, or diagnosis of cerebrovascular fibromuscular dysplasia
• Clinically significant cardiovascular disease
• Neurological syndromes, including multiple sclerosis, Alzheimer's disease, or Parkinson's disease
• Uncontrolled fibromyalgia
• History of left or right carotid surgery
• History of unilateral or bilateral vagotomy, partial or complete splenectomy
• Recurrent vasovagal syncope episodes
• Current, regular use of tobacco products
• Hypersensitivity/allergy to MRI contrast agents and/or unable to perform MRI

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

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.

• 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

• Study participant must be ≥18 to ≤89 years of age, at the time of signing the informed consent
• Study participant must be seropositive for leucine-rich glioma inactivated 1 (LGI1) antibody measured by LGI1 serum autoantibody cell-binding assay
• Study participant must have ≥2 seizures/week during the Screening Period or have experienced such seizures that stopped following intravenous methylprednisolone (IVMP) initiation:
• Either faciobrachial dystonic seizures (FBDS) with or without other focal (partial) seizures including focal to bilateral tonic clonic
• Or focal (partial) seizures including focal to bilateral tonic clonic and fulfil the following new-onset Autoimmune encephalitis (AIE) criteria: 1. Subacute onset (rapid progression of less than 3 months) of working memory deficits (short-term memory loss), altered mental status (defined as decreased or altered level of consciousness, lethargy, or personality change), or psychiatric symptoms. AND b. At least one of the following: i. New focal central nervous system (CNS) finding, as per the investigator's assessment ii. Seizures not explained by a previously known seizure disorder iii. Cerebrospinal fluid (CSF) pleocytosis (white blood cell count of >5 cells/mm3) iv. Magnetic resonance imaging (MRI) features suggestive of encephalitis (Brain MRI hyperintense signal on T2-weighted fluid-attenuated inversion recovery sequences highly restricted to one or both medial temporal lobes [limbic encephalitis], or in multifocal areas involving grey matter, white matter, or both compatible with demyelination or inflammation). AND c. Reasonable exclusion of alternative causes
• Study participant is deemed appropriate for initiation of IVMP based on clinical symptoms and history or has initiated IVMP treatment at a dose of 500 to 1000 mg/day within 14 days prior to randomization. If the study participant has initiated a steroid taper, the study participant cannot be receiving an oral steroid dose lower than 60 mg/day when randomized.
• Study participant with onset of disease between 0 to 12 months prior to Screening
• Study participant weighs at least 35 kg (for males and females) at Screening
• A male participant must agree to use contraception during the treatment period and for at least 90 days after the final dose of study treatment and refrain from donating sperm during this period
• A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies: i) Not a woman of childbearing potential (WOCBP) OR ii) A WOCBP who agrees to follow the contraceptive guidance during the treatment period and for at least 90 days after the final dose of study treatment
• Study participant has a known hypersensitivity to any components of the study medication or any other anti-neonatal Fc receptor (FcRn) medications. This includes a known history of hyperprolinemia, since L-proline is a constituent of the rozanolixizumab formulation
• Study participant has a confirmed prior diagnosis of epilepsy or new onset seizures that are unrelated to LGI1 autoimmune encephalitis (AIE) or has any known or suspected medical cause for the onset of seizures other than possible AIE
• Study participant has active neoplastic disease or history of neoplastic disease within 5 years of study entry (except for basal or squamous cell carcinoma of the skin or carcinoma in situ of the uterine cervix which has been definitively treated with standard of care approaches)
• Study participant has 12-lead electrocardiogram (ECG) with findings considered clinically significant upon medical review
• Study participant has renal impairment, defined as glomerular filtration rate (GFR) <30mL/min/1.73m2 at the Screening Visit.
• Study participant has a clinically relevant active infection (eg, sepsis, pneumonia, abscess) or has had a serious infection (resulting in hospitalization or requiring parenteral antibiotic treatment) within 6 weeks prior to the first dose of IMP
• Study participant has a history of chronic ongoing infections (eg, Hepatitis B or C, human immune deficiency virus [HIV], active or latent tuberculosis [TB]) or who tests positive for HIV, Hepatitis B or C at the Screening Visit
• Presence of Hepatitis B surface antigen at the Screening Visit
• Positive Hepatitis C antibody test result at Screening or within 3 months prior to the IMP dose
• Study participant has current unstable liver or biliary disease, per investigator assessment, defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, persistent jaundice, or cirrhosis
• Study participant has positive tuberculosis (TB) test at the Screening Visit
• Study participant has any of the following active gastrointestinal (GI) disorders: inflammatory bowel disease, GI ulceration, or diverticulitis
• Study participant has a history of solid organ transplant or hematopoietic stem cell transplant
• Study participant has undergone a splenectomy
• Study participant has a current or medical history of primary immune deficiency
• Study participant has been treated with prohibited immunosuppressants, biologics, and other therapies
• Study participant has received a live vaccination within 8 weeks prior to the Baseline Visit; or intends to have a live vaccination during the course of the study or within 8 weeks following the final dose of investigational medicinal product (IMP)
• Study participant has previously received rozanolixizumab drug product
• Alanine transaminase (ALT), aspartate aminotransferase (AST), or alkaline phosphatase (ALP) are >2x upper limit of normal (ULN)
• If study participant has >ULN for ALT, AST, or ALP that does not meet the exclusion limit at Screening, the tests must be repeated prior to dosing to ensure there was no further ongoing clinically relevant increase. In case of a clinically relevant increase as per the investigator's judgement, the study participant must be excluded.
• Tests that result in ALT, AST, or ALP up to 25 % above the exclusion limit (>2xULN) may be repeated once for confirmation. This includes rescreening. If any of the repeated tests (ALT, AST, or ALP) are >2xULN,the study participant must be excluded
• For randomized study participants with a Baseline result >ULN for ALT, AST, ALP, or total bilirubin but <1.5xULN, a Baseline diagnosis and/or the cause of any clinically meaningful elevation will have to be understood and recorded in the electronic case report form (eCRF)
• Bilirubin >1.5xULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35 %)
• Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
• Study participant has a total IgG level ≤5.5 g/L at the Screening Visit
• Study participant has absolute neutrophil count <1500 cells/mm^3 at the Screening Visit
• Participant has QT interval corrected for heart rate using Fridericia's formula (QTcF) >450 msec (for male participants) or QTcF >470 msec (for female participants) or QTcF >480 msec in participants with bundle branch block

• Diagnosis of primary progressive multiple sclerosis (PPMS).
• Expanded disability status scale (EDSS) score at screening and baseline, from 3 to 6.5 inclusive.
• Average T25FWT score over two trials at screening and over two trials at baseline respectively, up to 150 (inclusive) seconds
• Average 9HPT score over four trials (two trials with each hand) at screening and over four trials (two trials with each hand) at baseline respectively, up to 250 (inclusive) seconds
• Score of >/= to 2.0 on the Functional Systems scale for the pyramidal system that was due to lower extremity findings at screening and baseline.
• Documented MRI of brain with abnormalities consistent with MS
• Participants requiring symptomatic treatment for MS and/or physiotherapy must be treated at a stable dose. No initiation of symptomatic treatment for MS or physiotherapy within 4 weeks of randomization.
• Participants must be neurologically stable for at least 30 days prior to randomization and baseline.
• Disease duration from the onset of MS symptoms; if EDSS score at screening is less or equal to 5, disease duration must be less than 10 years; If EDSS score at screening is more than 5, disease duration must be less than 15 years
• Documented evidence of the presence of at least one cerebrospinal fluid-specific oligoclonal bands.
• For females of childbearing potential, agreement to remain abstinent or use adequate contraceptive methods.
• For female participants without reproductive potential, may be enrolled if post-menopausal unless receiving a hormonal therapy for her menopause or if surgically sterile.
• History of relapsing remitting or secondary progressive MS at screening.
• Any known or suspected active infection at screening or baseline (except nailbed infections), or any major episode of infection requiring hospitalization or treatment with IV antimicrobials within 8 weeks or treatment with oral antimicrobials within 2 weeks, prior to and during screening.
• History of confirmed or suspected progressive multifocal leukoencephalopathy.
• History of cancer, including hematologic malignancy and solid tumors, within 10 years of screening.
• Immunocompromised state.
• Receipt of a live or live-attenuated vaccine within 6 weeks prior to randomization.
• Inability to complete an MRI or contraindication to gadolinium administration.
• Contraindications to mandatory pre-medications for IRRs.
• Known presence of other neurologic disorders that could interfere with the diagnosis of MS or assessments of efficacy and/or safety during the study.
• Any concomitant disease that may require chronic treatment with systemic corticosteroids or immunosuppressants during the course of the study.
• Significant, uncontrolled disease that may preclude participant from participating in the study.
• History of or currently active primary or secondary, non-drug-related, immunodeficiency.
• Pregnant or breastfeeding or intending to become pregnant.
• Lack of peripheral venous access.
• History of alcohol or other drug abuse within 12 months prior to screening.
• Treatment with any investigational agent or treatment with any experimental procedure for MS.
• Previous use of anti-CD20s (including ocrelizumab), unless the last infusion was more than 2 years before screening, B-cell count is normal, and the stop of the treatment was not motivated by safety reasons or lack of efficacy.
• Any previous treatment with mitoxantrone, cladribine, atacicept, alemtuzumab, and daclizumab
• Previous treatment with fingolimod, siponimod, or ozanimod within 6 weeks of baseline
• Previous treatment with natalizumab within 4.5 months of baseline
• Previous treatment with interferons beta (1a or 1b), or glatiramer acetate within 2 weeks of baseline
• Previous treatment with any other immunomodulatory or immunosuppressive medication not already listed above without appropriate washout as described in the applicable local label. If the washout requirements are not described in the applicable local label, then the wash out period must be five times the half-life of the medication.
• Any previous treatment with bone marrow transplantation and hematopoietic stem cell transplantation.
• Any previous history of transplantation or anti-rejection therapy.
• Treatment with intravenous (IV) immunoglobulin (Ig) or plasmapheresis within 12 weeks prior to randomization.
• Systemic corticosteroid therapy within 4 weeks prior to screening.
• Positive screening tests for active, latent, or inadequately treated hepatitis B
• Sensitivity or intolerance to any ingredient (including excipients) of ocrelizumab.
• Any additional exclusionary criterion as per ocrelizumab local label, if more stringent than the above.

• Patients can have either histologically confirmed malignancy that is radiologically evaluable and metastatic or unresectable, or have a malignancy for which a PD-1/PD-L1 inhibitor has been approved in the adjuvant setting. 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 enrolling on the trial for adjuvant use will be restricted to those with histology for which a PD-1/PD-L1 inhibitor has been approved in the adjuvant setting including but not limited to NSCLC, melanoma, RCC, cervical cancer, and bladder cancer
• 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 >= 1,000/mcL
• Absolute neutrophil count >= 500/mcL
• Platelets >= 50,000/mcL
• Total bilirubin =< 2 x institutional upper limit of normal (ULN)
• Aspartate aminotransferase (AST) (serum glutamic-oxaloacetic transaminase [SGOT])/alanine aminotransferase (ALT) (serum glutamate pyruvate transaminase [SGPT]) =< 5 x institutional ULN or < 8 x institutional ULN for patients with liver metastases or an autoimmune disease that is contributing to the elevation of these values
• 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 new or progressive brain metastases (active brain metastases) or leptomeningeal disease are eligible if the treating physician determines that immediate central nervous system (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 with more than one autoimmune disease are eligible. The treating physician would determine which autoimmune disease is dominant and the patient would be treated under that specific cohort
• Patients who have had chemotherapy or radiotherapy within 2 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 (2 week washout from start of treatment), 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 anticancer 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

[CLOVER-1] All Patients
• Histologically or cytologically confirmed MM; Patients with primary or secondary CNSL may be enrolled.
• ECOG performance status of 0 to 2
• 18 years of age or older
• Life expectancy of at least 6 months
• Platelets ≥ 75,000/µL (if full-dose anticoagulation therapy is used, platelets ≥ 100,000/µL are required)
• WBC count ≥ 3000/µL
• Absolute neutrophil count ≥ 1500/µL
• Hemoglobin ≥ 9 g/dL (last transfusion, if any, must be at least 1 week prior to study registration, and no transfusions are allowed between registration and dosing)
• Estimated glomerular filtration rate ≥ 30 mL/min/1.73 m2
• Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) ≤ 2.5 × upper limit of normal (ULN)
• Bilirubin < 1.5 × ULN
• International normalized ratio (INR) < 2.5
• If patient is on full-dose anticoagulation therapy, the anticoagulation therapy must be reversible and reversal of the anticoagulation therapy must not be life-threatening, as judged by the Investigator
• Patients who have undergone stem cell transplant must be at least 100 days from transplant Patients with Multiple Myeloma
• At least 5 prior regimens, which must include at least 1 approved proteasome inhibitor (bortezomib, carfilzomib, or ixazomib), at least 1 approved immunomodulatory agent (thalidomide, lenalidomide, or pomalidomide), and at least 1 approved monoclonal antibody (e.g., daratumumab or elotuzumab) with or without maintenance therapy, unless patients are intolerable to such agents or ineligible to receive such agents.
• At least triple-class refractory (refractory to a proteasome inhibitor, immunomodulatory agent, and a monoclonal antibody)
• Progressive disease defined by any of the following:
• 25% increase in serum M-protein from the lowest response value during (or after) last therapy and/or absolute increase in serum M-protein of ≥ 0.5 g/dL
• 25% increase in urine M-protein from the lowest response value during (or after) last therapy and/or absolute increase in urine M-protein of ≥ 200 mg/24 h
• 25% increase in bone marrow plasma cell percentage from the lowest response value during (or after) last therapy. Absolute bone marrow plasma cell percentage must be ≥ 10% unless prior CR when absolute bone marrow plasma cell percentage must be ≥ 5%.
• 25% increase in serum FLC level from the lowest response value during (or after) last therapy; the absolute increase must be > 10 mg/dL
• New onset hypercalcemia > 11.5 mg/dL
• Failure to obtain a partial response or better to current treatment, or cannot further improve their response to current treatment
• Appearance of new extramedullary disease
• Measurable disease defined by any of the following:
• Serum M-protein > 0.5 g/dL
• Urine M-protein > 200 mg/24 h
• Serum FLC assay: Involved FLC level ≥ 10 mg/dL provided serum FLC ratio is abnormal. [CLOSED] Patients with Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma, Lymphoplasmacytic Lymphoma/Waldenstom Macroglobulinemia, or Marginal Zone Lymphoma
• Prior treatment with at least 2 prior regimens, which may include chemotherapy, an approved anti-CD20 antibody with or without maintenance therapy, and an approved targeted agent, unless patients are ineligible to receive such agents
• Patients with Helicobacter pylori+ mucosa-associated lymphoid tissue lymphoma must have received 1 prior antibiotic regimen for H pylori
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Additional parameters (e.g., measurable IgM for patients with Lymphoplasmacytic Lymphoma) may be allowed if they meet current NCCN guidelines for symptomatic disease. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. [CLOSED] Patients with Mantle Cell Lymphoma
• Prior treatment with at least 1 prior regimen
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. [CLOSED] Patients with Diffuse Large B-Cell Lymphoma
• Relapsed or refractory to combination chemotherapy for DLBCL that contains rituximab and an anthracycline; or is intolerable to such agents. Relapsed disease is defined as either recurrence of disease after a CR or PD after achieving a partial response (PR) or SD. Refractory disease is defined as failure to achieve at least SD with any 1 line of therapy or with PD ≤ 3 months of the most recent chemotherapy regimen.
• At least 1 measurable nodal lesion with longest diameter > 15 mm or 1 measurable extranodal lesion (eg, hepatic nodule) with longest diameter > 10 mm. Patients with uptake by FDG-PET scan may be allowed with prior approval of Sponsor. Patients with CNS Lymphoma
• Must have biopsy-proven disease and must have received at least one prior intervention for their disease.
• Must be at least two weeks from CNS biopsy before administration of CLR 131.
• Must have at least one lesion with enhancement on brain imaging.
• Stable (or decreasing) dose of corticosteroids or anti-convulsant medication for at least 7 days prior to dosing [CLOVER-1]
• Ongoing Grade 2 or greater toxicities due to previous therapies. Stable, tolerable Grade 2 AEs (eg, neuropathy) may be allowed.
• Prior external-beam RT resulting in greater than 20% of total bone marrow receiving greater than 20 Gy.
• Prior total body or hemi-body irradiation. Patients who have received prior low-dose total body or hemi-body irradiation may be allowed on a case-by-case basis after discussion with Sponsor (considerations may include factors such as time since irradiation, total lifetime accumulated dose, etc.)
• Extradural tumor in contact with the spinal cord or tumor located where swelling in response to therapy may impinge upon the spinal cord
• For patients with CLL/SLL, LPL, or MZL, transformation to a more aggressive form of NHL
• Ongoing chronic immunosuppressive therapy
• Clinically significant bleeding event within prior 6 months
• Ongoing anti-platelet therapy (except low-dose aspirin [eg, 81 mg daily] for cardioprotection)
• Anti-cancer therapy within two weeks of initial CLR 131 infusion. Low dose dexamethasone for symptom management is allowed
• Radiation therapy, chemotherapy, immunotherapy, or investigational therapy within 2 weeks of eligibility-defining bone marrow biopsy.
• For patients with primary or secondary CNSL, active bleeding in the tumor bed and/or uncontrolled seizure activity [CLOVER-WaM] Inclusion Criteria
• Histologically or cytologically confirmed WM. Patients with a diagnosis of LPL may be enrolled with prior Sponsor approval.
• Patient has an Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 to 2 (Appendix C)
• Patient is 18 years of age or older
• Life expectancy of at least 6 months
• Received at least two prior lines of therapy for WM
• Measurable IgM (above upper limit of normal) OR at least one measurable nodal lesion with longest diameter > 15 mm or one measurable extranodal lesion (e.g., hepatic nodule) with longest diameter > 10 mm [CLOVER-WaM] Exclusion Criteria
• Ongoing Grade 2 or greater toxicities due to previous therapies, excluding alopecia.
• Prior external-beam RT resulting in greater than 20% of total bone marrow receiving greater than 20 Gy.
• Prior total body or hemi-body irradiation. Patients who have received prior low-dose total body or hemi-body irradiation may be allowed on a case-by-case basis after discussion with Sponsor (considerations may include factors such as time since irradiation, total lifetime accumulated dose, etc.)
• Patients with second malignancies in addition to WM, if the second malignancy has required therapy in the last 2 years or is not in remission; exceptions to this criterion include successfully treated non-metastatic basal cell or squamous cell skin carcinoma, or prostate cancer that does not require therapy
• Anti-cancer therapy within two weeks of initial CLR 131 infusion.
• Need for acute treatment of WM (e.g., those with hyperviscosity)

• Male or female participants who are ≥ 6 and ≤ 55 years of age at the time of signing informed consent/assent.
• Documented medical history of allergy to peanuts or peanut-containing foods.
• Positive peanut-specific immunoglobulin E (peanut sIgE), ≥ 0.35 kUA/L at Screening visit 1 (Screening 1).
• Positive skin prick test (SPT) for peanut allergen at Screening 1 defined as an average diameter (Longest diameter and mid-point orthogonal diameter) ≥ 4 mm wheal compared to saline control.
• A positive peanut DBPCFC at baseline (Screening Visit 2, Part 1 and Part 2 DBPCFC) defined as the occurrence of dose-limiting symptoms at a single dose ≤ 100 mg of peanut protein. Eligibility to proceed with the DBPCFC requires fulfillment of all other eligibility criteria.
• Participants must weigh ≥ 20 kg at Screening 1.
• Total IgE >2000 IU/mL at Screening 1.
• History of severe or life-threatening hypersensitivity event needing an ICU admission or intubation within 60 days prior to baseline DBPCFC (Screening visit 2).
• Participants with uncontrolled asthma (according to GINA guidelines, GINA 2020) who meet any of the following criteria:
• FEV1 <80% of subject's predicted normal value at Screening visit 1
• One hospitalization for asthma within 12 months prior to Screening visit 1 Other protocol-defined inclusion/exclusion criteria may apply.

• 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

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. Are willing and able to receive at least 2 lumbar punctures 3. Have an EDSS of 0 to ≤ 5.5 during the screening period 4. Had at least 1 relapse or 1 gadolinium-enhancing or 1 new or enlarged T2 lesion in the last 12 months 5. Have absolute lymphocyte count (ALC) within normal range of the local laboratory or assessed as normal by the investigator within the 3 week screening period and meet all other eligibility criteria for cladribine tablet treatment 6. Capable of giving signed informed consent 1. Have any contraindication for lumbar puncture 2. Have current malignancy 3. Are infected with human immunodeficiency virus (HIV) 4. Have active chronic infections (e.g. hepatitis or tuberculosis) 5. Have signs or symptoms suggestive of progressive multifocal leukoencephalopathy (PML) in MRI 6. Have history of hypersensitivity to cladribine or any of the excipients listed in the cladribine tablets US Prescribing Information 7. Allergy or hypersensitivity to gadolinium and/or any other contraindication to perform a MRI 8. Have any other comorbid conditions that preclude participation 9. Have been previously treated with cladribine 10. Have previously been treated with ocrelizumab, alemtuzumab, rituximab, or daclizumab 11. Have received treatment with natalizumab during the last 6 months 12. Are currently receiving immunosuppressive or myelosuppressive therapy, e.g., methotrexate, cyclophosphamide, cyclosporine or azathioprine, or chronic treatment with systemic corticosteroids 13. Have received treatment with immunosuppressive or myelosuppressive therapy during the last 6 months 14. Have received chronic treatment with systemic corticosteroids during the last 4 weeks 15. Have moderate or severe hepatic impairment (Child-Pugh score >6) 16. Have moderate or severe renal impairment (creatinine clearance <60 mL per minute) 17. 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 18. Are intending to breastfeed on a cladribine tablet treatment day and/or during the 10 days after the last cladribine tablet dose.

INCLUSION CRITERIA: 1. Able to understand the potential risks and benefits, the study requirements, and provide written informed consent before enrollment into the study; or if unable, the subject's Legally Authorized Representative (LAR) may provide written informed consent. 2. Male or female ≥18 to maximum of 80 years of age, inclusive. 3. Upper limb spasticity due to stroke, or traumatic brain injury, or spinal cord injury that occurred ≥ 6 months prior to randomization. Eligible subjects may have upper limb monoplegia or hemiplegia. Subjects with cerebral palsy are eligible for study enrollment. 4. Modified Ashworth Scale (MAS) scores of ≥2 in at least two muscle groups inclusive of the elbow, wrist, and finger flexors at screening and baseline. 5. In the Investigator's opinion, the subject will be available and able to comply with the study requirements for at least 1 year, based on the subject's overall health and disease prognosis. 6. In the Investigator's opinion, the subject will be willing and able to comply with all requirements of the protocol, including completion of study questionnaires. A caregiver may be designated to assist with the physical completion of questionnaires/scales. EXCLUSION CRITERIA: 1. Quadriplegia/tetraplegia, or triplegia with both upper limbs affected. 2. Uncontrolled epilepsy or any type of seizure disorder with a seizure(s) within the previous year. 3. Neuromuscular disorders including, but not limited to, amyotrophic lateral sclerosis (ALS), primary lateral sclerosis (PLS), multiple sclerosis (MS), myasthenia gravis, or muscular dystrophy. 4. History of major joint contracture(s), in which, based on the Investigator's assessment, the contracture(s) significantly contributes to joint immobility in the affected upper limb. 5. Unresolved fracture(s) in the affected upper limb. 6. Severe atrophy in the affected upper limb. 7. Known hypersensitivity to botulinum toxins type A or B or to any MYOBLOC solution components. 8. Concomitant use or exposure within 5 half-lives of randomization of the following: aminoglycoside antibiotics, curare-like agents, or other agents that may interfere with neuromuscular function. 9. Treatment with a neurolytic agent (e.g., phenol, alcohol blocks) to the affected upper limb within 1 year before randomization. 10. Presence of a spinal stimulator or intrathecal baclofen pump that has not been turned off within 30 days prior to screening. 11. Changes to treatment regimen or any new treatment with oral antispasmodics and/or muscle relaxants within 30 days prior to randomization. 12. Initiation of physical and/or occupational therapy <30 days before randomization. Subjects receiving physical and/or occupational therapy ≥30 days before randomization must be willing to maintain their therapy regimen through Week 4 of the Double-Blind Period. 13. Prior botulinum toxin type A (BoNT/A) or B (BoNT/B) treatment in the affected upper limb within 24 weeks before screening. Prior BoNT/A or BoNT/B treatment in areas other than the affected upper limb is not exclusionary but must have occurred at least 12 weeks before screening. Prior toxin exposure must have been well tolerated and without any significant long-term side effects in the case of repeated prior exposure. 14. Subjects should not receive nor have any plans to receive any botulinum toxin treatment, other than the study drug (MYOBLOC), from the time that informed consent is obtained until participation in the study is complete. 15. Severe dysphagia (i.e., inability to swallow liquids, solids or both without choking or medical intervention), or dysphagia with a history of aspiration pneumonia, within 6 months before screening. 16. Prior surgery to treat spasticity in the affected upper limb (i.e., tendon lengthening or tendon transfer). 17. Any anticipated or scheduled surgery during the study period, with the exception of dermatological procedures performed under local anesthesia for the purposes of removing precancerous and cancerous lesions. 18. Major surgery within 30 days before screening. 19. Pregnancy or breastfeeding. 20. Females of childbearing potential must agree to practice a medically acceptable method of contraception (e.g., intrauterine device, hormonal contraception started at least one full cycle before study enrollment, or barrier method in conjunction with spermicide) for the duration of the study (including 2 months after study completion). For the purposes of this study, all females are considered to be of childbearing potential unless they are confirmed by the Investigator to be post-menopausal (at least 1 year since last menses and laboratory test confirmation), biologically sterile, or surgically sterile (e.g., hysterectomy with bilateral oophorectomy, tubal ligation). 21. History of drug or alcohol abuse within 6 months before screening. 22. Obstructive pulmonary disease with forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) <70%. 23. Slow vital capacity (SVC) <60% of predicted. 24. Chronic or current use of inhaled corticosteroids. 25. Ventilator dependence (i.e., 24-hour ventilator dependence when intubated, or due to a failure to wean the subject from the ventilator while hospitalized in the intensive care unit or respiratory care center). Subjects who use oxygen on an as-needed basis or during sleeping hours only via a nasal cannula are eligible for the study. 26. Infection at the planned sites of injection. 27. Treatment with an investigational drug, device, or biological agent within 30 days before screening or while participating in this study. 28. Malignancy diagnosed 3 months before screening. 29. Has one or more screening clinical laboratory test values outside the reference range that, in the opinion of the Investigator, are clinically significant, or any of the following :
• Serum creatinine >1.5 times the upper limit of normal (ULN);
• Serum total bilirubin > 1.5 times ULN;
• Serum alanine aminotransferase or aspartate aminotransferase >2 times ULN. 30. Has any of the following cardiac findings at screening:
• Abnormal ECG that is, in the Investigator's opinion/evaluation, clinically significant;
• PR interval >220 ms;
• QRS interval >130 ms;
• QTcF interval >450 ms (for men), or >470 ms (for women) (QT corrected using Fridericia's method);
• Second-or third-degree atrioventricular block;
• Any rhythm, other than sinus rhythm, that is interpreted or assessed by the Investigator to be clinically significant. 31. Any other medical illness, condition, or clinical finding that, in the opinion of the Investigator and/or the Sponsor, would put the subject at undue risk.

• 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

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

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)