This study is for patients that have been diagnosed with relapsed/refractory neuroblastoma. The investigational drug given is eflornithine (DFMO) along with etoposide. DFMO is the investigational drug being used along with etoposide for treatment of neuroblastoma. Participants will undergo a number of standard tests and research-related procedures before being able to enroll in this study. Some risks include but are not limited to: fewer red and white blood cells, diarrhea, abdominal pain, loss of appetite, skin rash, seizure, difficulty swallowing and blurred vision. Participants can expect to be on this study for approximately 2 years. Participants will then be followed for up to 5 years after study completion.

This study is for patients that have been diagnosed with early-stage (Stage I or II) Hodgkin lymphoma (HL)(cHL). The main purpose of this study is to compare the effects, good and/or bad, of brentuximab vedotin and nivolumab (Bv-NIVO) against standard therapy for people with HL to find out which is better. Participants can expect to be in the study for up to 54 months.

This study is for patient that have been diagnosed with High Risk Neuroblastoma. The investigational drug in this study is naxitamab. The purpose of this study is to test the safety of adding an Anti-GD2 Immunotherapy agent (naxitamab) to your standard therapy during the induction phase of care. Read the sections on risks and benefits carefully and be sure you understand them. This study will also look at the effectiveness of this treatment.

This study is for patients that have been diagnosed with high risk neuroblastoma. This study is testing an investigational drug called Dinutuximab, which will be combined with standard care induction and transplant. "Investigational" means it has not been approved by the United States Food and Drug Administration (FDA).
The primary purpose of this study is to compare treatment outcomes of participants who are assigned to early chemoimmunotherapy (Dinutuximab and Sargramostim) during Induction to treatment outcomes of participants who are not assigned to treatment that includes early chemoimmunotherapy. Participants will be randomized to the standard of care arm of the trial or the standard of care arm plus chemoimmunotherapy (like flipping a coin). The investigational drug is given to participants through IV infusion. Participants in this study can expect to be in this study for a total of five years.