This study is for newly diagnosed or previously untreated low-grade glioma (LGG). The overall goal of this study is to see if selumetinib works just as well as the standard treatment using carboplatin and vincristine (called CV) for subjects with LGG. Selumetinib is a drug that works by blocking a protein (a basic building block of the human body) that lets cancer cells grow without stopping. Participants can expect to receive treatment on this study for about 1–2 years. After study completion, participants will continue to be followed for up to 10 years.

This study is for participants that have been diagnosed with Medulloblastoma. The purpose of this study is to test the effectiveness of using an investigational agent called DFMO for Medulloblastoma. An investigational drug is one that has not been approved by the U.S. Food and Drug Administration (FDA). This study will look at the ability of this study drug to either keep participants tumor in remission or if they have active tumor, for their tumor to respond to the treatment and will also look at the safety and tolerability of DFMO. After this first day participants will be seen in clinic once every 30 days for the first 6 months of the study, after that they will be seen once every 90 days for the remainder of the study. These visits will last about 2 hours.

This study is for participants with tumors from pediatric cancers and genomic/molecular testing was done as part of standard of care treatment. This is an observational study; therefore, only information about the disease and medical treatment will be collected and participants will not receive any treatments or additional medications. The sponsor, Beat Childhood Cancer, will collect and store personal health information and molecular/genomic test results, tissue samples, and bodily fluids (examples: additional tube(s) of blood, urine, bone marrow or cerebral spinal fluid) that are left over after testing or treatment is completed in a data registry and a specimen bank, and make these available for future research. Database personnel will continue to collect and store participant information from future visits, as long as they do not withdraw from participation in this study.

This study is for subjects that have been diagnosed with cancer, as well as healthy research subjects. The purpose of this study is to evaluate the risk factors for development of immune related adverse side effects from cancer immunotherapy and to evaluate differences from healthy research subjects. Participation in the study will take about 2 visits over a period of 6 months.

This study is for subjects that have been diagnosed with AML (acute myeloid leukemia) and MDS (myelodysplastic syndrome). This study is testing an "investigational" (not yet FDA approved) study drug called Sea-CD70. This study will find out if the drug is safe and tolerable, and find out the maximum tolerated dose (highest dose of a drug or treatment that does not cause unacceptable side effects) or recommended dose for the next phase of clinical study. The subject will be given the study drug in 28 day cycles. At any given visit, the subject may undergo procedures, such as a physical exam, blood samples, ECG (electrocardiogram), or a bone marrow exam. The subject may remain in the study for up to approximately 3 years.

This study is for patients who have been diagnosed with multiple myeloma. The investigational drug in this study is idecabtagene vicleucel (ide-cel). 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 have about 8 clinic visits and to be in this study for up to 3 months after receiving the study drug and in follow up for up to 15 years.

This study is for patients who have been diagnosed with relapsed or refractory CD22+ B-Acute Lymphoblastic Leukemia (B-ALL). The overall goal of this study is to find out what effect, good and/or bad, the drug inotuzumab ozogamicin has on children and young adults with relapsed or refractory B-ALL. Participants can expect to be on this study for up 2 months and followed for up to 5 years.

This study is for patients that have been diagnosed with multiple myeloma. The usual approach for patients with newly diagnosed multiple myeloma who are not in a study, is lenalidomide and dexamethasone in combination with bortezomib or daratumumab. This approach is approved by the Food and Drug Administration (FDA). The purpose of this study is to see if patients who have a small amount of cancer left after initial treatment (called minimal residual disease (MRD)), could benefit from adding a new drug to the usual treatment. The study approach, using a combination of four drugs, is investigational and not approved by the FDA. Patients can expect to be on this study for up to 2 years. Patients will then be followed by their doctor for up to 15 years after completion of the study or until disease progression..

This study is for patients who have advanced cancers, such as head and neck cancer, colorectal cancer, breast cancer, and others. This study is testing a new treatment for these types of cancer. The new test drug is called ficerafusp alfa. Pembrolizumab is an approved drug by the United States Food and Drug Administration (FDA) for the diseases described in this study and will be used as approved. The type of cancer a patient has will determine whether he/she will get ficerafusp alfa alone or ficerafusp alfa in combination with pembrolizumab. Participants will receive either ficerafusp alfa alone, ficerafusp alfa in combination with pembrolizumab or ficerafusp alfa, depending on your cancer until the cancer gets worse, they experience bad side effects, or until they withdraw consent, or until the Investigator considers it is in his/her best interest to discontinue the study drug.

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.