This trial will enroll patients 50 years and older with acute lymphoblastic leukemia (ALL). Patients above age 50 years are not eligible for intensive chemotherapy regimens and have been shown to have worse outcomes than adolescents and young adults treated with the same chemotherapy. For instance, the 5-year survival for patients aged 55-65 years treated on an international ALL trial was 21% compared to 38% for younger patients. Similarly, the 5-year survival for patients treated at MD Anderson Cancer Center with the hyper-CVAD regimen was 30% for patients aged 40-59 years compared to 51% for those less then age 40 years.

This study is for patients who have newly diagnosed diagnosed BCR-ABL acute lymphoblastic leukemia (ALL). This study is being done to determine the effects (good or bad) of using the combination of a Tyrosine Kinase Inhibitor (TKI), steroids and blinatumomab versus treatment with steroids, Tyrosine Kinase Inhibitor (TKI) and chemotherapy. This investigational therapy will be added to what has traditionally been used to treat your specific sub-type of ALL. Studies are being done in ALL and other blood cancers with blinatumomab.

This study is for patients with acute leukemia or myelodysplastic syndrome (MDS). This study is being done to help understand whether a haplo related donor or a MUD HCT for people with acute leukemia or MDS is better or if there is no difference at all.

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 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 male and female patients who are 65 years of age or older who have chronic lymphocytic leukemia (CLL) that has never been treated before, and their disease has progressed to the point that therapy has been recommended. The purpose of this study is to compare the effects, good and/or bad, of the drug ibrutinib, either alone or in combination with the drug rituximab, with the standard treatment for this disease. The standard treatment is chemotherapy with the drug bendamustine in combination with the drug rituximab. The effects on the patient and their leukemia will be looked at to find out which treatment is better. Both bendamustine and rituximab are approved by the FDA to treat chronic lymphocytic leukemia (your leukemia type), but ibrutinib is considered investigational. In this study, patients will get either the drug ibrutinib alone, or ibrutinib with rituximab, or bendamustine with rituximab. If the patient is in the group that receives bendamustine with rituximab and their disease returns, they will have the option to receive ibrutinib.