Mercaptopurine

The purpose of this study is to find out whether the combination of mezigdomide and revumenib is a safe treatment for people with relapsed or refractory KMT2A-r, NUP98-r, and NPM1-m acute leukemias.

This study with ALTB-268 will determine the safety, tolerability, pharmacokinetics and pharmacodynamics of single ascending doses of intravenously administrated ALTB-268 in healthy participants.

This clinical trial tests if oral vancomycin can safely treat active ulcerative colitis (UC) in adults who also have primary sclerosing cholangitis (PSC), a liver condition. The main questions it aims to answer are: * Can oral vancomycin improve UC symptoms as measured by Mayo score at 4 weeks? * Is oral vancomycin safe and tolerable in this patient group? Participants will be compared to see if vancomycin works better than placebo. Participants will: * Take oral vancomycin (250 mg twice daily) or identical placebo capsules for 4 weeks * Have the option for 4 more weeks of open-label vancomycin after the blinded phase * Attend clinic visits at baseline, week 4, and follow-up for Mayo scoring, endoscopy, blood/stool tests, and safety checks * Track treatment adherence and side effects The study primarily assesses if the trial can recruit 14 participants, retain them, achieve good adherence, and follow protocol procedures (feasibility). Secondary goals include safety (adverse events) and early signs of benefit in UC activity, liver tests, and gut bacteria balance. This pilot will guide larger future studies.

Background: Acute lymphoblastic leukemia (ALL) is a type of blood cancer. Chimeric antigen receptor (CAR) therapy involves taking immune cells (T cells) from a person and modifying them to better target cancer cells. CAR T-cell therapy that targets a marker called CD19 has been show to can cure ALL in many children and adults. But in about 50% of patients, the ALL comes back within a year. Researchers want to find out if a second treatment with CAR T-cell therapy that targets a different marker, CD22, can keep the cancer away longer. Objective: To see if CD22 CAR T-cell therapy can keep ALL away longer. Eligibility: People aged 3 to 65 years who have no signs of cancer after CD19 CAR T-cell treatment for ALL. Design: Participants will be screened. They will have imaging scans and tests of their heart function. A sample of tissue (biopsy) will be collected from their bone marrow. They will have a fluid sample collected from the area around their spinal cord. Participants will undergo collection of their white blood cells (T cells) during a procedure called leukapheresis. Blood will be taken from their body through a vein. The blood will pass through a machine that separates out the T cells. The remaining blood will be returned to the body through a different vein. The cells will be altered in a lab to create CD22 CAR T-cell therapy. Participants will take drugs over 4 consecutive days to prepare their body for the CAR T-cell therapy; then they will receive their modified T cells through a tube inserted into a vein. Some people may need to stay in the hospital during treatment. Participants will have follow-up visits for 2 years.

The goal of this clinical trial is to evaluate whether disease remission can be maintained when biologic therapy is reduced in patients with Crohn"s disease (CD) and ulcerative colitis (UC) taking ustekinumab (UST). The main question it aims to answer is: Can we de-escalate UST subcutaneous dose either from every 4 weeks (Q4) to every 8 weeks (Q8) or every 8 weeks (Q8) to every 12 weeks (Q12) in CD or UC patients in deep remission without loosing their response? Researchers will follow UST blood levels, inflammation markers and intestinal mucosa integrity and to see if UST dose can be reduced while maintaining clinical remission. Participants will: Change UST dosing from Q4 to Q8 or from Q8 to Q12. Visit the clinic once every 12 weeks for checkups and tests.

The primary objective of this proposal is to conduct the first-in-human randomized clinical trial evaluating prophylactic DLI-X (pro-DLI-X) for relapse prevention following matched sibling donor (MSD) or haploidentical (haplo) hematopoietic cell transplantation (HCT) in patients with hematologic malignancies. Additionally, the study aims to assess the safety and efficacy of therapeutic DLI-X (t-DLI-X) compared to t-DLI alone in patients with minimal residual disease (MRD+) or overt relapse post-alloHCT. For patients with CD19-positive lymphoid malignancies, the study will incorporate blinatumomab, while those with myeloid or CD19-negative lymphoid malignancies will receive t-DLI-X or t-DLI alone. We hypothesize that both pro-DLI-X and t-DLI-X, with or without blinatumomab, will demonstrate safety and superior efficacy by enhancing graft-versus-leukemia (GvL) effects mediated by natural killer (NK) cells, γδ T cells, and CD8+ T cells, while maintaining manageable and treatment-responsive graft-versus-host disease (GvHD).

This is a 28-week, single-arm, open-label phase II clinical trial evaluating the combination of Tirzepatide and remote, supervised, tailored resistance exercise training to achieve weight loss in adult survivors of childhood acute lymphoblastic leukemia (ALL) living with obesity or overweight with comorbidity. Primary Objective(s): • To evaluate the effectiveness for weight loss of the combined intervention using once weekly Tirzepatide plus remote, supervised, tailored resistance exercise (three sessions per week) in adult survivors of childhood ALL with obesity or overweight (BMI ≥27 kg/m2) with ≥1 weight-related comorbidity (hypertension, dyslipidemia, obstructive sleep apnea, or cardiovascular disease). The effectiveness will be estimated as the proportion of evaluable participants who achieve at least 5% weight loss from baseline to week 28. The study will target a proportion of participants achieving 5% weight loss of 70% and consider fewer than 40% achieving 5% weight loss as unacceptable. Secondary Objective(s): * Estimate the proportion of participants who adhere to the 28-week combined intervention. Adherence to Tirzepatide will be defined as receiving at least 70% of prescribed doses. Adherence to resistance exercise will be defined as attending at least 50% of prescribed exercise sessions. Adherence to the combined intervention will be considered if participants complete the study and meet both the Tirzepatide and exercise adherence endpoint. The adherence to each component of the intervention will also be reported. * Estimate the average percentage weight loss from week 0 to 28 for participants completing the combined 28-week intervention. The study will target a mean weight reduction of 10% and consider \<5% unacceptable.

This study is a clinical trial of oral N-acetylglucosamine (GlcNAc) in patients with Crohn's disease (CD). This study includes two study groups divided by gene variation in a transporter protein that regulates manganese levels. This genetic variant increases the risk of Crohn's disease (especially involving the ileum) and is carried by approximately 10% of individuals with Crohn's disease. This genetic variant lowers manganese levels, and manganese is important in a cellular process called glycosylation, therefore, glycosylation is changed. Glycosylation in the gut controls the barrier function, interactions with the bugs in the gut, and immune function - all important in Crohn's disease. In this study, the investigators will test if this problem with glycosylation can be targeted by giving GlcNAc. GlcNAc is a key ingredient for glycosylation, and it is currently marketed as a dietary supplement in the United States.

The objective of this trial is to test whether a smartphone app, SMART-IBD, is effective in improving medication adherence and self-management skills in adolescents with IBD. The investigators will conduct a randomized control trial to compare 35 youth (ages 13-17) with IBD using an app that contains daily symptom diaries, education content, medication reminders, as well as monthly engagement challenges to 35 youth in an attention control group that will complete daily diaries. The length of the intervention will include one month of baseline symptom and adherence collection, a baseline assessment, 5 months of intervention, and a post-treatment assessment.

To find out if giving blinatumomab as injections under the skin can help to control MRD and keep the disease from coming back in participants with B-cell ALL.

This is a multicenter, randomized, double-blind, placebo-controlled, maintenance, Phase 3 study to evaluate the efficacy and safety of duvakitug in participants with moderately to severely active Crohn's Disease (CD). Study details include: The study duration may be up to 286 weeks including: * 40-week Pivotal Maintenance Sub-Study * 240-week Open-Label Extension (OLE) Sub-Study * 45-day Follow-Up visit Note: For the participants who do not enroll into OLE Sub-Study, the duration will be up to 46 weeks, including the 40-week maintenance period and a 45-day follow-up visit. The treatment duration may be up to 280 weeks including: * 40 weeks in the Pivotal Maintenance Sub-Study * 240 weeks in OLE Sub-Study The total number of on-site visits will be up to 43: - 21 visits in the Pivotal Maintenance Sub-Study - 22 visits in the OLE Sub-Study

This is a multinational, multicenter, randomized, double-blind, placebo-controlled, Phase 3 induction study, comprised of 3 sub-studies, to evaluate the efficacy and safety of duvakitug in participants with moderately to severely active CD. Study details include: The study duration may be up to 35 weeks with: * Up to 5-week Screening Period. * 12-week Sub-Study 1 (Single Arm Open-Label Feeder Induction) or Sub-Study 2 (Pivotal Induction). * 12-week Sub-Study 3 (Extended Induction for non-responders). * 6 weeks (45 days) follow-up period for participants who do not enroll into the Pivotal Maintenance Study (EFC18327). The treatment duration will be up to 12 weeks in each sub-study. The number of scheduled study visits for participants who continue to the Pivotal Maintenance Study (EFC18327) will be up to 8 (Sub-Study 1 and Sub-Study 2) and up to 15 for participants who enroll in Sub-Study 3.