Refractory T Acute Lymphoblastic Leukemia Clinical Trial
Official title:
A Phase II Study of AKR1C3-Activated Prodrug OBI-3424 (OBI-3424) in Patients With Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia (T-ALL)
This phase II trial studies how well OBI-3424 works in treating patients with T-cell acute lymphoblastic leukemia that has come back (relapsed) or does not response to treatment (refractory). Drugs used in chemotherapy, such as OBI-3424, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. OBI-3424 may reduce the amount of leukemia in the body.
PRIMARY OBJECTIVE: I. To assess the response rate (complete remission [CR] or CR with incomplete count recovery [CRi]) of AKR1C3-activated prodrug OBI-3424 (OBI-3424) in patients with relapsed/refractory T-cell acute lymphoblastic leukemia (T-ALL). SECONDARY OBJECTIVES: I. To estimate the frequency and severity of toxicities of OBI-3424 in this patient population. II. To estimate event-free survival (EFS), relapse-free survival (RFS) and overall survival (OS) in this patient population. TRANSLATIONAL MEDICINE OBJECTIVES: I. To estimate minimal/measurable residual disease (MRD) negativity (among patients who achieve CR or CRi). II. To assess AKR1C3 expression levels in this patient population. III. c. To evaluate associations between AKR1C3 expression and response to OBI-3423, achievement of MRD-negative remission, and relapse from remission. IV. To bank specimens for future research. OUTLINE: Patients receive AKR1C3-activated prodrug OBI-3424 intravenously (IV) over 30 minutes on days 1 and 8. Treatment repeats every 21 days for up to 17 cycles in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up every month for 1 year, every 2 months for 1 year, every 3 months for 1 year, and then every 6 months for up to 5 years from registration. ;
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