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 newly diagnosed asymptomatic high-risk patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). The purpose of this study is to find out if starting treatment with the investigational products, venetoclaz and obinutuzumab (V-O) early (before symptoms occur) affect how long you live compared to the usual approach of starting treatment after showing symptoms. Participants can expect to receive treatment for up to 12 months, until the cancer gets worse or until the side effects are too great. After study completion, participants will continue to be followed for up to 10 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 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 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.

This study is for adult male and female patients with previously untreated acute myeloid leukemia (AML). The purpose of this study is to compare the effects, good and/or bad of three drug combinations. The first combination is the standard treatment of daunorubicin plus AraC. The second combination is another standard treatment of idarubicin plus AraC. The third combination will add the drug vorinostat to the standard IA therapy. The study team wants to see if the study treatments will get rid of leukemia cells and keep them from coming back for patients who may benefit from stem cell transplant. They also want to find stem cell transplant donors for patients who might benefit from a transplant according to standard practice, beginning at the time patients register for the study. Participants will be asked to take induction treatment for 1-2 months. If a participant gets consolidation, it could take from 1-4 months. Participants may go on to transplant any time in the next year after he/she goes into remission. After participants are finished with the study treatment, the study doctor will ask them to visit the office for follow-up exams for at least 5 years from the time they go into remission.