This study is for patients that have been diagnosed with leukemia. This study is called a screening study and we are doing this study to find better ways to diagnose and treat leukemia in children, adolescents and young adults. Bone marrow, blood, and medical information about participant's cancer and treatment will be collected. Participants can expect to be on this study for 5 years.

This study is for patients that have newly diagnosed High-Risk B-ALL, Risk-Adapted Post-Induction therapy for High-Risk B-ALL, Mixed Phenotype Acute Leukemia, and Disseminated B-LLy. The treatment involves medicine called chemotherapy, which fights cancer. Some patients may also need radiation therapy depending on whether the cancer has spread to the brain and spinal fluid, or the testes for males. The investigational drug on this study is inotuzumab ozogamicin. Participants can expect to be on this study for a little over 2 years and followed for up to 10 years.

This study is for subjects that have been diagnosed with B-cell Acute Lymphoblastic Leukemia (B-ALL). The study treatment is called tisagenlecleucel (you may also see it referred to as CTL019, CART-19 or Kymriah™). The purpose of the study is to test an experimental approach called gene transfer in subjects that are considered to have high-risk Acute Lymphoblastic Leukemia (ALL), a type of blood cancer that involves cells in your blood called B cells.
Your study participation in this study will not last for more than 8 years. You will be asked to join another study after this trial so your study doctor can check on you for as long as 15 years after the treatment.

This study is for patients that have been diagnosed with chronic lymphocytic leukemia (CLL). The investigational drug used in this study is venetoclax in addition to standard treatment of ibrutinib plus obinutuzumab. The purpose of this study is to compare the progression-free survival (PFS) between control treatment and experimental treatment strategies: ibrutinib/obinutuzumab (IO) with ibrutinib maintenance (IM) versus ibrutinib/venetoclax/obinutuzumab (IVO) regardless of IM or observation. Participants can expect to be on treatment for up to 1 year and followed by their physician for up to 10 years.

This study is for patients who have been diagnosed with B-cell acute lymphoblastic leukemia (ALL) or large B-cell lymphomas. The investigational drug in this study is CTL019 (Tisagenlecleucel). The purpose of this study is to provide the investigational drug as a possible cancer treatment that would otherwise be unavailable. Patients can expect to be in this study for up to 3 months and in follow up for 15 years.

This study is for patients that have been diagnosed with chronic lymphocytic leukemia (CLL). The investigational drugs in this study are ibrutinib, obinutuzumab and venetoclax. The purpose of this study is to compare the usual treatment of ibrutinib and obinutuzumab to a combination treatment of ibrutinib and obinutuzumab plus the study drug, venetoclax.

This study is for patients that have been diagnosed with Leukemia or Lymphoma. and have been treated on one of the following studies: Pediatric Oncology Group (POG) 9404, 9425, 9426, or Dana Farber Cancer Institute (DFCI) ALL Consortium 95-01. The purpose of this study is to look at the heart function of patients selected by change to get DRZ compared to the heart function of patients selected by chance not to get DRZ. In this study, they will also look at gender, age at cancer diagnosis, current age, dose of chemotherapy, and if chest radiation influences the risk of early heard damage. Participants in this clinical trial are expected to come to one clinic visit.

This study is for patients who have been diagnosed with a form of Acute Lymphoblastic Leukemia (ALL) called Philadelphia chromosome positive (Ph+) ALL. The purpose of this study is to compare disease free survival (DFS) of Standard Risk (SR) pediatric Ph+ ALL treated with continuous imatinib combined with either a high-risk COG ALL chemotherapy backbone or the more intensive EsPhALL chemotherapy backbone. A drug called imatinib in combination with chemotherapy will be given. Participants can expect to be in this study for up to 2 years and their health followed for up to 10 years.

This study is for patients that have been diagnosed with High Risk B-Lymphoblastic Leukemia (HR B-ALL). The investigational drug in this study is Ruxolitinib. The purpose of this study is to find out if the study drug, ruxolitinib, in combination with standard HR B-ALL treatment is safe and effective in children, adolescents, and young adults with HR B-ALL. Participants can expect to be in this study for the treatment period of approximately 26 months (females) or 38 months (males) plus the post-treatment follow-up. Subjects are considered on study during the post-treatment follow-up period until the subject is deceased, lost to follow-up, or until the study is completed. Subjects in this study will be followed until all enrolled subjects have been followed for 3 years from Day 1 or are deceased or lost to follow-up.

This study is for patients that have been diagnosed with Acute Myeloid Leukemia (AML) and Down Sydnrome (DS). The purpose of this study is to find out if subjects with standard risk DS AML can be treated with less treatment and still have successful outcomes as well as to find out if subjects with high risk DS AML can be successfully treated with stronger chemotherapy. Participants can expect to be in this study for about 6 months.