Safety and Efficacy of Marqibo in Relapsed Acute Lymphoblastic Leukemia

Study Summary

This was a Phase 2, international, multicenter, open-label, single-arm trial evaluating Marqibo (VSLI) in adult subjects with: 1) Ph- ALL or lymphoblastic lymphoma in second or greater relapse; or 2) Ph- ALL or lymphoblastic lymphoma who failed 2 or greater treatment lines of anti-leukemia chemotherapy. The original enrollment target for this study was approximately 56 subjects. Per a protocol amendment, enrollment was increased from 56 to 65. The primary objective of this study was to evaluate: \- The efficacy of the study treatment as determined by the rate of CR plus CR with incomplete blood count recovery (CRi) in adult subjects with Philadelphia chromosome-negative (Ph-) ALL in second relapse or adult subjects with (Ph-) ALL who failed 2 treatment lines of anti-leukemia chemotherapy. Subjects must have achieved a CR to at least 1 prior anti-leukemia therapy as defined by a leukemia-free interval of ≥ 90 days.

Primary Outcome

CR is defined as no evidence of ALL: ANC\>or=1x10\^9/L or platelet count\>100x10\^9/L, absence of leukemia blast cells in blood and marrow (\<5% blasts), resolution of all sites of extramedullary disease (EMD). CR with incomplete blood count recovery (CRi): As per CR but platelet count\< 100x10\^9/L or ANC\< 1x10\^9/L. Partial remission(PR):CR with\>5-25% abnormal cells in the marrow or 50% decrease in bone marrow blasts. Reduction in EMD by at least 50%. Hematologic Improvement. Bone marrow bla

Conditions Studied

Interventions

• DRUG Marqibo® (vincristine sulfate liposomes injection)

Study Locations (20)