Phase 2 Trial Comparing Blinatumomab Alone Versus Blinatumomab With Nivolumab in Children and Young Adults With First Relapse B-Cell Acute Lymphoblastic Leukemia

What this Trial Is About

Researchers are evaluating the combination of nivolumab and blinatumomab compared to blinatumomab alone in children and young adults aged 1 to under 31 years with first relapse of CD19 B-cell acute lymphoblastic leukemia B-ALL, including patients with Down syndrome. This phase II trial aims to compare event-free survival after reinduction and consolidation therapy, assess safety and tolerability, and explore various outcomes such as remission rates and toxicity, with follow-up up to 10 years after enrollment. Participants receive treatments based on their assigned groups and arms, involving cycles of immunotherapy including blinatumomab, nivolumab, dexamethasone, methotrexate, and other chemotherapy drugs given by various routes such as intravenous infusion, intrathecal injection, and oral administration. Treatment cycles repeat every 36 or 37 days for up to two cycles, with some groups receiving radiation therapy or maintenance chemotherapy afterward. Patients with high white blood cell counts or specific disease locations may receive pre-immunotherapy treatments. Throughout the study, participants undergo lumbar punctures, bone marrow biopsies and aspirations, and collection of blood, urine, and cerebrospinal fluid for monitoring. Researchers measure outcomes such as minimal residual disease negative remission rates and event-free survival. After completing treatment, participants are followed every three months for one year to monitor their health and any long-term treatment effects.

A Study to Compare Blinatumomab Alone to Blinatumomab With Nivolumab in Patients Diagnosed With First Relapse B-Cell Acute Lymphoblastic Leukemia (B-ALL)