Key
• Histologically confirmed diagnosis of a locally advanced (not amenable to curative therapy such as surgical resection) metastatic cancer of the following histologies: melanoma (MEL), Merkel cell carcinoma (MCC), triple-negative breast cancer (TNBC), renal cell carcinoma (RCC), colorectal cancer, head and neck squamous cell carcinoma (HNSCC), or sarcoma.
• Life expectancy > 12 weeks as determined by the Investigator.
• Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1.
• Measurable disease per RECIST 1.1.
• Patients enrolled in Cohorts 1-10, Cohort A, Cohort B and Phase 2 Doublet must be refractory to all therapies known to confer clinical benefit to their disease.
• Fresh tumor tissue available for cellular characterization and programmed cell death protein 1 (PD-L1) status.
• Injected lesions (up to two) must be between 20 mm and 90 mm in diameter for IT injection; lesions must be accessible for baseline and on-treatment biopsies. Any liver lesion targeted for injection must not exceed 50 mm at the time of injection.
• Demonstrated adequate organ function within 14 days of Cycle 1 Day 1 (C1D1). Key
• Use of an investigational agent or an investigational device within 21 days before administration of first dose of study drug(s).
• Patients treated with prior interleukin-2 (IL-2).
• Patients who have been previously treated with a toll-like receptor (TLR) agonist (excluding topical agents) and patients who have received experimental cancer vaccines.
• Patients who have received systemic interferon (IFN)α within the previous 6 months prior to enrollment to the study.
• Other active malignancy, except non-melanomic skin cancer
• Evidence of clinically significant interstitial lung disease or active, noninfectious pneumonitis.
• Prior surgery or radiotherapy within 14 days of initiating study drug(s). Patients must have recovered from all radiation-related toxicities, not required corticosteroids and have not had radiation pneumonitis.
• Prolonged Fridericia's corrected QT interval (QTcF) > 450 ms for men and > 470 ms for women at Screening. History of unstable or deteriorating cardiac disease within the previous 6 months prior to screening including but not limited to the following:
• Unstable angina or myocardial infarction.
• Congestive heart failure (NYHA Class III or IV).
• Uncontrolled clinically significant arrhythmias.
• Patients with a history of any retinal disorders (e.g., retinal detachment, diabetic retinopathy, retinal hemorrhage, macular degeneration).
• Uveal melanoma will be excluded
• Patients with tumor that invade the superior vena cava or other major blood vessels. Additional general and tumor specific inclusion and exclusion criteria will apply.

Key
• For Japan only, men and women ≥21 years old
• Patient with resection of pathologically confirmed CSCC (primary CSCC lesion only, or primary CSCC with nodal involvement, or CSCC nodal metastasis with known primary CSCC lesion previously treated within the draining lymph node echelon), with macroscopic gross resection of all disease
• High risk CSCC, as defined in the protocol
• Completion of curative intent post-operative radiation therapy (RT) within 2 to 6 weeks of randomization
• Eastern Cooperative Oncology Group performance status (ECOG PS) ≤1
• Adequate hepatic, renal, and bone marrow function as defined in the protocol Key
• Squamous cell carcinomas (SCCs) arising in non-cutaneous sites as defined in the protocol
• Concurrent malignancy other than localized CSCC and/or history of malignancy other than localized CSCC within 3 years of date of randomization as defined in the protocol
• Patients with hematologic malignancies (eg, chronic lymphocytic leukemia (CLL))
• Patients with history of distantly metastatic CSCC (visceral or distant nodal), unless the disease-free interval is at least 3 years (regional nodal involvement of disease in draining lymph node basin that was resected and radiated prior to enrollment will not be exclusionary)
• Ongoing or recent (within 5 years of randomization date) evidence of significant autoimmune disease that required treatment with systemic immunosuppressive treatments, which may suggest risk for immune-related adverse events (irAEs). The following are not exclusionary: vitiligo, childhood asthma that has resolved, type 1 diabetes, residual hypothyroidism that required only hormone replacement, or psoriasis that does not require systemic treatment.
• Has had prior systemic anti-cancer immunotherapy for CSCC Note: Other protocol defined Inclusion/Exclusion criteria apply

Key Inclusion Criteria
• Stage II to IV (M0) CSCC, for which surgery would be recommended in routine clinical practice. For stage II patients, lesion must be ≥3 cm at the longest diameter.
• At least 1 lesion that is measurable by RECIST 1.1
• Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1
• Adequate organ, bone marrow function, and hepatic function as defined in the protocol Key Exclusion Criteria
• Solid malignancy within 5 years of the projected enrollment date, or hematologic malignancy (including chronic lymphocytic leukemia [CLL]) at any time
• Distant metastatic disease (M1), visceral and/or distant nodal
• Prior radiation therapy for CSCC
• Patients with a condition requiring corticosteroid therapy (>10 mg prednisone/day or equivalent) within 14 days of the first dose of study drug.
• Patients with active, known, or suspected autoimmune disease that has required systemic therapy within 5 years of the projected enrollment date.
• History of interstitial lung disease (eg, idiopathic pulmonary fibrosis, organizing pneumonia) or active, noninfectious pneumonitis that required immune-suppressive doses of glucocorticoids to assist with management.
• Uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B or hepatitis C virus (HBV or HCV) infection; or diagnosis of immunodeficiency
• Active tuberculosis NOTE: Other protocol-defined Inclusion/Exclusion Criteria apply

• Ability to provide informed consent;
• Diagnosis of Pemphigus Vulgaris (PV) or Pemphigus Foliaceus (PF), defined by H&E staining (e.g., Haemotoxylin and Eosin) and direct immunofluorescence staining of skin biopsy at any time prior to enrollment;
• Pemphigus treated with systemic corticosteroids within the 2 years prior to screening (historic or current), or treated with rituximab ≥ 12 months prior to screening;
• Presence of:
• anti-Dsg3 antibodies (>20.0 U/ml) at screening visit consistent with diagnosis of pemphigus vulgaris or,
• anti-Dsg1 antibodies (>20.0 U/ml) at screening visit consistent with diagnosis of pemphigus foliaceus.
• Active of PV or PF as defined by Pemphigus Disease Area Index (PDAI) overall activity score 3-10 at screening visit, and PDAI overall activity score 1-12 at baseline visit;
• Positive test for Epstein-Barr Virus (EBV) antibody;
• Adequate venous access to support draw of 400 ml whole blood and infusion of investigational therapy; and
• An absolute Treg count of ≥ 42 cells/μL within 6 weeks prior to whole blood collection at Week -2 (i.e., 2 weeks prior to planned PolyTreg Infusion).
• Initiation of systemic corticosteroid therapy, prednisone dose > 25 mg/d (or equivalent) or change in prednisone dose within 4 weeks prior to screening;
• Addition of a new medication, or change in the dose of any background medication used to treat any aspect of pemphigus within the timeframes listed below. Specifically:
• methotrexate, mycophenolate mofetil, mycophenolic acid, azathioprine, cyclosporine or dapsone within the 6 weeks prior to screening or in the time between screening and study drug infusion,
• intravenous Immunoglobulin (IVIG) within 12 weeks prior to screening or in the time between screening and study drug infusion (subjects on IVIG must be on stable dose for at least 12 weeks prior to screening),
• treatment with cyclophosphamide within 12 weeks prior to screening or in the time between screening and study drug infusion.
• Doses of background medications at screening:
• methotrexate > 25 mg/week,
• mycophenolate mofetil > 3000 mg/d,
• mycophenolic acid > 1080 mg/bid,
• azathioprine > 200 mg/d,
• cyclosporine > 2 mg/kg/d,
• dapsone >250 mg/d,or
• intravenous immunoglobulin (IVIG) > 4mg/kg monthly.
• Use of rituximab within the 12 months prior to screening;
• Change in dosing frequency, concentration, or applied surface area of topical steroids and/or topical calcineurin inhibitors within 2 weeks prior to screening;
• Paraneoplastic pemphigus;
• Pemphigus erythematosus;
• Pemphigus vegetans;
• Immunoglobulin A (IgA) pemphigus;
• Drug-induced pemphigus;
• Blood donation within 10 weeks prior to baseline visit (Day 0);
• Hemoglobin < 10 g/dL;
• White blood cell (WBC) count < 3,000/ mm^3 (equivalent to < 3 x10^9/L);
• Lymphocyte count < 800/mm^3 (equivalent to < 0.8 x10^9/L);
• Absolute neutrophil count < 1,500/mm^3 (equivalent to < 1.5 x10^9/L);
• Platelets < 100,000/mm^3 (equivalent to < 100 x 10^9/L);
• Liver function test [aspartate aminotransferase (AST)], alanine aminotransferase (ALT), or alkaline phosphatase (ALK)] results that are ≥ 2 times the upper limit of normal (ULN);
• Direct bilirubin > ULN;
• End stage renal disease [estimated glomerular filtration rate (eGFR) < 20 ml/min/1.73m^2 using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation];
• At or within three months of screening:
• a positive QuantiFERON(R)-TB Gold test or positive purified protein derivative tuberculin skin test (PPD) [>5mm induration, regardless of Bacille Calmette Guerin (BCG) vaccine administration] unless completion of treatment has been documented for active Tuberculosis (TB),
• an indeterminate QuantiFERON (R)-TB Gold test unless followed by a subsequent negative PPD or negative QuantiFERON(R)-TB Gold test as well as a consultation with and clearance by local infectious disease (ID) department.
• Recent or ongoing active bacterial, viral, fungal, or opportunistic infections requiring systemic anti-infective therapy;
• Evidence of current or prior infection with human immunodeficiency virus (HIV), hepatitis B [as assessed by HBsAg and anti-hepatitis B core antigen (HBc) Ab] or hepatitis C [as assessed by anti-Hepatitis C Virus (anti-HCV) Ab];
• Detectable circulating EBV or Cytomegalovirus (CMV) genomes or active infection;
• Chronic infection that is currently being treated with suppressive anti-infective therapy, including but not limited to tuberculosis, pneumocystis, CMV, herpes zoster, and atypical mycobacteria, with the exception of historical orolabial or localized cutaneous herpes simplex infections treated with suppressive anti- viral therapy;
• Receipt of a live-attenuated vaccine within 12 months prior to screening;
• Concomitant malignancies or a history of malignancy, with the exception of completely treated basal cell carcinoma of the skin;
• Pregnancy;
• Lactating or breastfeeding;
• Unwilling or unable to use reliable method(s) of contraception:
• For females of child-bearing potential, from four weeks prior to Day 0 through 1 year after Treg dosing;
• For males, from the day of Treg infusion (baseline visit) to three months after Treg infusion.
• Use of an investigational therapeutic medication, or other biologic medications except rituximab, within the past 90 days, or 5 half-lives prior to screening, whichever is greater;
• Concomitant medical condition that places the subject at risk by participating in this study, including but not limited to:
• another severe, systemic autoimmune disease or condition (besides pemphigus) requiring systemic immunosuppressive therapy (e.g., rheumatoid arthritis, Systemic Lupus Erythematosus (SLE), systemic sclerosis, primary Sjogren's syndrome, primary vasculitis, psoriasis, multiple sclerosis, ankylosing spondylitis, and inflammatory bowel disease), or
• severe, progressive, or poorly controlled renal, hepatic, hematological, gastrointestinal, pulmonary, cardiac, or neurological disease, or
• history of significant infection or recurrent infection that, in the investigator's opinion, places the subject at risk by participating in this study, or
• any other concomitant medical condition that, in the investigator's opinion, places the subject at risk by participating in this study.
• Comorbidities requiring glucocorticoid therapy, including those which have required three or more courses of systemic glucocorticoids within the previous 12 months;
• Current or history within the past year of substance abuse; or
• Inability to comply with study and follow-up procedures.

1. Have histologically confirmed advanced or metastatic castration-resistant prostate cancer, bladder cancer, melanoma, non-small cell lung cancer, pancreatic cancer, colorectal cancer, gastric cancer, esophageal cancer, ovarian cancer, and head neck squamous cell carcinoma. Or, Have histologically confirmed metastatic pancreatic adenocarcinoma. Recurrent unresectable pancreatic cancer is acceptable as long as the treatment is first-line. 2. Have not received any approved chemotherapy, except in the adjuvant setting. 1. Subject was using immunosuppressive medications within 14 days before Screening with the exception of topical (intranasal, inhaled, and local injection), systemic (prednisone equivalent 10 mg/day or less), or as needed for hypersensitivity reactions such as computed tomography (CT) scan premedication. 2. Subject has active infections or other serious underlying significant medical illness, abnormal and clinically significant laboratory findings or psychiatric illness/social situation. 3. Subject is using a pacemaker, implantable cardiac defibrillator, neurostimulator, cochlear implants, cochlear implants, or other electronic medical equipment. 4. Subject has documented immunodeficiency or organ transplant. 5. Subject has an untreated central nervous system disease, leptomeningeal disease or cord compression. 6. Subject has a history, or presence, of significant cardiovascular diseases; including uncontrolled hypertension, clinically relevant cardiac arrhythmia, unstable angina or myocardial infarction within 6 months before randomization, congestive heart failure > New York Heart Association Class II, severe peripheral vascular disease, corrected QT (QTc) prolongation >470 msec, clinically significant pericardial effusion. 7. Subject has a history or presence of documented inflammatory bowel disease. 8. Subject is known to be positive for human immunodeficiency virus infection. -

Inclusion Criteria (non-burned individuals):
• Healthy male and female subjects
• 18-65 years of age.
• Free of any underlying medical conditions Exclusion Criteria (non-burned individuals):
• Any burn-related injuries resulting in at least one night of hospitalization.
• Heart disease or any other chronic medical condition requiring regular medical therapy including cancer, diabetes, and hypertension.
• Abnormalities detected on routine screening
• Individuals who participate in a structured aerobic exercise training program at moderate to high intensities.
• Current smokers, as well as individuals who regularly smoked within the past 3 years.
• Body mass index of greater than 30 kg/m^2.
• Pregnant individuals Inclusion Criteria (burn survivors):
• Healthy male and female subjects
• 18-65 years of age.
• Free of any underlying medical conditions
• Having a burn injury covering 20-40% or >40% of the participant's body surface area; at least 50% of those burn injuries must be full thickness that required skin grafting.
• Participants must have been hospitalized due to the burn injury for a minimum of 15 days Exclusion Criteria (burn survivors):
• Any burn-related injuries resulting in at least one night of hospitalization.
• Heart disease or any other chronic medical condition requiring regular medical therapy including cancer, diabetes, and hypertension.
• Abnormalities detected on routine screening
• Individuals who participate in a structured aerobic exercise training program at moderate to high intensities.
• Current smokers, as well as individuals who regularly smoked within the past 3 years.
• Body mass index of greater than 30 kg/m^2.
• Pregnant individuals
• Extensive unhealed injured skin

1. Deep 2nd and/or 3rd degree burns requiring grafting 2. Patient meets one of the following 4 criteria: 1. Patients 18
•39 years of age with ≥ 20% TBSA* burn 2. Patients 18
•39 years of age with ≥ 15% TBSA* burn and with inhalation injury 3. Patients 40
•59 years of age with ≥ 15% TBSA* burn 4. Patients ≥ 60 years of age ≥ 10% TBSA* *TBSA
•Total Body Surface Area 1. > 72 hrs from admission to ICU to time of consent. 2. Patients younger than 18 years of age. 3. a) Patients without known renal disease and renal dysfunction defined as a serum creatinine >171 µmol/L or a urine output of less than 500 mL/last 24 hours (or 80 mL/last 4 hours if a 24 hour period of observation is not available). b) Patients with acute on chronic renal failure (pre-dialysis) with an absolute increase of >80 µmol/L from baseline or pre-admission creatinine or a urine output of <500 mL/last 24 hours (or 80 mL/last 4 hours). c) Patients with chronic renal failure on dialysis will be excluded. 4. Liver cirrhosis
•Child-Pugh class C liver disease 5. Pregnant or lactating females. 6. Contra-indication for EN: intestinal occlusion or perforation, intra-abdominal injury. 7. Patients with injuries from high voltage electrical contact. 8. Patients who are moribund (not expected to survive the next 72 hours). 9. Patients with extreme body sizes: BMI < 18 or > 50 10. Enrollment in another industry sponsored ICU intervention study. 11. Received glutamine supplement for > 24 hrs prior to randomization 12. Known allergy to maltodextrin, corn starch, corn, corn products or glutamine.

• Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status: 0, 1, or 2 (However, those patients with a performance state of 3 because they are wheel chair bound due to congenital or traumatic events more than one year before the diagnosis of Merkel cell carcinoma are eligible).
• Women must not be pregnant or breast-feeding due to the unknown effects of the study drug in this setting. All women of childbearing potential must have a blood test or urine study within 2 weeks prior to registration to rule out pregnancy. A female of childbearing potential is any woman, regardless of sexual orientation or whether they have undergone tubal ligation, who meets the following criteria: 1) has achieved menarche at some point, 2) has not undergone a hysterectomy or bilateral oophorectomy; or 3) has not been naturally postmenopausal (amenorrhea following cancer therapy does not rule out childbearing potential) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months).
• Women of childbearing potential, and sexually active males, on Arm A MK-3475 (pembrolizumab must use accepted and effective method(s) of contraception or abstain from sex from time of registration, while on study treatment, and continue for 120 days after the last dose of study treatment. For patients on Arm B only receiving radiation therapy, contraception use should be per institutional standard.
• Patient must have a histological confirmation of diagnosis of Merkel cell carcinoma (MCC), pathologic stages (American Joint Committee on Cancer [AJCC] version 8) I-IIIb.
• Stage I patients with negative sentinel lymph node biopsy are ineligible. Patients who have a positive biopsy or for whom no biopsy was done are eligible.
• Patients with distant metastatic disease (stage IV) are not eligible.
• The primary tumor must have grossly negative margins. (Microscopically positive margins are allowed).
• Cancers of unknown primary that have regional disease only can be included.
• Complete nodal dissection is not required for eligibility.
• Patients with all macroscopic Merkel cell carcinoma (either identified by physical exam or imaging) have been completely resected by surgery within 16 weeks before registration.
• All patients must have disease-free status documented by a complete physical examination and conventional imaging studies within 8 weeks prior to registration.
• Patient may not have a history of distant metastatic disease.
• NOTE: Loco-regional recurrent disease is acceptable, as long as this is not metastatic (prior surgery with or without radiation therapy is acceptable).
• For patients with initial presentation of Merkel cell carcinoma, patient must have no previous systemic therapy or radiation therapy prior to surgery for Merkel cell carcinoma and cannot have completed adjuvant radiation therapy for Merkel cell carcinoma more than 6 weeks prior to registration. Patients actively undergoing radiation therapy or having completed adjuvant radiation therapy within 6 weeks of registration are eligible, as long as resection date is within 16 weeks of registration.
• White blood count >= 2000/uL (within 4 weeks prior to randomization).
• Absolute neutrophil count (ANC) >= 1000/uL (within 4 weeks prior to randomization).
• Platelets >= 75 x 10^3/uL (within 4 weeks prior to randomization).
• Hemoglobin >= 8 g/dL (>= 80 g/L; may be transfused) (within 4 weeks prior to randomization).
• Creatinine =< 2.0 x upper limit of normal (ULN) (within 4 weeks prior to randomization).
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) =< 2.5 x ULN (within 4 weeks prior to randomization).
• Total bilirubin =< 2.0 x ULN, (except patients with Gilbert's syndrome, who must have a total bilirubin less than 3.0 mg/dL) (within 4 weeks prior to randomization).
• Patients who are human immunodeficiency virus (HIV)+ with undetectable HIV viral load are eligible provided they meet all other protocol criteria for participation.
• Patients with hepatitis B virus (HBV) or hepatitis C virus (HCV) infection are eligible provided viral loads are undetectable. Patients on suppressive therapy are eligible.
• Patients must not be on active immunosuppression, have a history of life threatening virus, have had other (beside non-melanoma skin cancers, or recent indolent cancers e.g.: resected low grade prostate cancer) invasive cancer diagnoses in the last two years, or have had immunotherapy of any kind within the last 2 years.
• Patients must not have a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
• Operative notes from patient's surgical resection must be accessible.

• Between 6 months and <18 years of age (or between 3 years and <18 years of age for rrcHL participants) on day of signing informed consent/assent (the first 3 participants dosed in Part 1 are to be ≥ 6 years of age)
• Histologically- or cytologically-documented, locally-advanced, or metastatic solid malignancy or lymphoma that is incurable and has failed prior standard therapy, or for which no standard therapy exists, or for which no standard therapy is considered appropriate
• Any number of prior treatment regimens
• Tissue (or lymph node biopsy for rrcHL participants) available from an archival tissue sample or, if appropriate, a newly obtained core or excisional biopsy of a tumor lesion not previously irradiated
• Advanced melanoma or PD-L1-positive advanced, relapsed, or refractory solid tumor or lymphoma
• Measurable disease based on RECIST 1.1 (Or based on IWG [Cheson, 2007] [i.e., measurement must be >15 mm in longest diameter or >10 mm in short axis] for rrcHL participants)
• Participants with neuroblastoma with only metaiodobenzylguanidine (MIBG)-positive evaluable disease may be enrolled
• Lansky Play Scale ≥50 for participants from 6 months up to and including 16 years of age; or Karnofsky score ≥50 for participants >16 years of age
• Adequate organ function
• Female participants of childbearing potential should have a negative urine or serum pregnancy test within 72 hours prior to receiving the first dose of study medication
• Female participants of childbearing potential must be willing to use 2 methods of contraception or be surgically sterile, or abstain from heterosexual activity for the course of the study through 120 days after the last dose of study medication
• Male participants of reproductive potential must agree to use an adequate method of contraception starting with the first dose of study medication through 120 days after the last dose of study medication
• Currently participating and receiving study therapy in, or has participated in a study of an investigational agent and received study therapy or used an investigational device within 4 weeks of the date of allocation/randomization
• Diagnosis of immunodeficiency or receiving systemic steroid therapy or any other form of immunosuppressive therapy within 7 days prior to the date of allocation/randomization
• Prior systemic anti-cancer therapy including investigational agent within 2 weeks prior to study Day 1 or not recovered from adverse events due to a previously administered agent
• Prior radiotherapy within 2 weeks of start of study treatment
• Known additional malignancy that is progressing or requires active treatment with the exception of basal cell carcinoma of the skin, squamous cell carcinoma of the skin or carcinoma in situ (eg, breast carcinoma, cervical carcinoma in situ) with potentially curative therapy, or in situ cervical cancer
• Known active central nervous system (CNS) metastases and/or carcinomatous meningitis
• Tumor(s) involving the brain stem
• Severe hypersensitivity (≥ Grade 3) to pembrolizumab and/or any of its excipients
• Active autoimmune disease that has required systemic treatment in past 2 years; replacement therapy (such as thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency) is acceptable
• Has a history of (non-infectious) pneumonitis that required steroids or current pneumonitis.
• Active infection requiring systemic therapy
• Pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial through 120 days after the last dose of study medication
• Prior therapy with an anti-programmed cell death (PD)-1, anti-PD-ligand 1 (anti-PD-L1), anti-PD-L2 agent, or any agent directed to another stimulatory or inhibitory T-cell receptor (eg, cytotoxic lymphocyte associated protein-4 [CTLA-4], OX-40, CD137)
• Human immunodeficiency virus (HIV)
• Hepatitis B or C
• Known history of active tuberculosis (TB; Bacillus tuberculosis)
• Received a live vaccine within 30 days of planned start of study medication
• Has undergone solid organ transplant at any time, or prior allogeneic hematopoietic stem cell transplantation within the last 5 years. (Participants who have had an allogeneic hematopoietic transplant >5 years ago are eligible as long as there are no symptoms of Graft Versus Host Disease [GVHD].)
• History or current evidence of any condition, therapy, or laboratory abnormality, or known severe hypersensitivity to any component or analog of the trial treatment, that might confound the results of the trial, or interfere with the participant's participation for the full duration of the study
• Known psychiatric or substance abuse disorders that would interfere with the requirements of the study

• 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

• Male or female subjects between 18-65 years of age, inclusive, at time of informed consent.
• Must have moderate to severe active non-segmental vitiligo.
• History of human immunodeficiency virus (HIV) or positive HIV serology at screening,
• Infected with hepatitis B or hepatitis C viruses.
• Have evidence of active or latent or inadequately treated infection with Mycobacterium tuberculosis (TB)

• Able to provide Informed Consent
• Ankle Brachial Index (ABI) ≥ 0.5 (bedside ABI is acceptable for screening purposes as the formal imaging ABI may not be resulted prior to therapy)
• Participant is a hospital in-patient for the duration of study procedures
• One or more chronic lower extremity wounds that are located in the ankle area or below that has persisted a minimum of 30 days prior to the Screening visit
• 18 years of age or older
• Unable to provide informed consent
• <18 years of age
• Participant has a demand-type cardiac pacemaker, implanted defibrillator or other implanted metallic or electronic device.
• Participant has untreated osteomyelitis
• Participant has active cellulitis
• Participant has active charcot
• Is pregnant or plans to become pregnant
• Is nursing or actively lactating
• Developmental disability/significant psychological disorder that in the opinion of the investigator could impair the participant's ability to provide informed consent, participate in the study protocol including untreated schizophrenia, bipolar disorder and psychiatric hospitalization within the last 2 years.

1. Male and female subjects ≥7 to 60 years of age 2. >30% TBSA burned, as estimated by the physician in charge 3. No evidence of organ failure 1. Active Tuberculosis- based on clinical symptoms and/or abnormal chest x-ray in the upper lobe. 2. Electrical burns 3. Mental retardation or autism or any other mental disorder that makes it impossible to participate in an exercise program 4. Pregnancy

• Healthy male and female adults between ages 21-70 years of age.
• Desire skin laxity lift of the submental region.
• Confirmed BMI ≤ 35.
• Subjects who can read, understand, and sign the Informed Consent Form.
• Subjects willing and able to comply with all study requirements.
• Fitzpatrick skin type I-VI.
• Submental fat graded by the Investigator as ≥ 1 using the Clinician-Reported Submental Fat Rating Scale
• Subject is willing not to undergo any type of aesthetic procedure that could confound the study device treatment effects until he/she completes the study.
• Active localized or systemic infections, that may alter wound healing.
• Immunocompromised subjects.
• Subjects with coagulation disorder.
• History of skin photosensitivity disorders, or use of photosensitizing drugs (e.g., tetracycline or sulfa drugs).
• Pregnant and/or lactating (All female volunteers will be advised about using birth control during the period of study).
• Excessive skin laxity on the submental and neck (Submental Skin Laxity Grade: SMSLG 4, Appendix E), or other anatomical feature for which reduction in SMF which may, in the judgment of the investigator, result in an aesthetically unacceptable outcome.
• Scarring in areas to be treated.
• Tattoos in the treatment areas to be treated.
• Significant open facial wounds or lesions.
• Severe or cystic acne in treatment areas.
• Current active smoker.
• Use of Accutane (Isotretinoin) within the past 6 months.
• Use of topical retinoids within 48 hours.
• Use of prescription anticoagulants.
• Pacemaker or internal defibrillator.
• History of skin disorders resulting in abnormal wound healing (i.e. keloids, extreme dry and fragile skin).
• Subjects on current oral corticosteroid therapy or within the past 6 months
• Metal implants in the treatment area.
• In the opinion of the investigator, subject is unwilling or unable to adhere to all study requirements, including application and follow-up visits.
• Subjects with a history of radiation therapy to the treatment area.
• Subject has a history of allergy to lidocaine or ester-based local anesthetics.
• Subjects with significant cardiac history or rhythm disturbance who may be unable to tolerate lidocaine with epinephrine.
• Subjects with any skin pathology or condition in the treatment area that could interfere with evaluation or with the use of typical ancillary medical treatments or care used before, during or after treatments (e.g. psoriasis, rosacea, eczema, seborrheic dermatitis, vitiligo, hyper or hypo-skin pigmentation conditions such as post inflammatory hyperpigmentation).
• Subjects who are unwilling to shave excessive hair in the treatment area that might influence or impair evaluation in the opinion of the Investigator.
• Subjects have undergone skin resurfacing or tightening treatments in the treatment area over the past year.
• Subjects have undergone dermatological treatments such as fillers and neurotoxins for the past 6 months in the treatment area.
• Subjects have undergone laser and light treatments in the treatment area over the past 3 months.
• Subjects have undergone superficial peel or microdermabrasion within 4 weeks.

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)