A Study of Olverembatinib Combined With Blinatumomab in the Treatment of Ph+ ALL

Philadelphia-Positive ALL Clinical Trial

Official title: A Multicenter, Prospective Clinical Study of Olverembatinib Combined With Blinatumomab in the Treatment of Adult de Novo Philadelphia Chromosome Positive Acute Lymphoid Leukemia

Status Not yet recruiting

Clinical Trial Summary

This is a multicenter, prospective, phase II study for adult de novo Philadelphia chromosome-positive acute lymphoid leukemia (Ph+ ALL) based on the combination of Olverembatinib and Blinatumomab. Olverembatinib will be taken 40mg qod from the time of diagnosis, and Blinatumomab will be given intravenously up to five cycles.

Clinical Trial Description

This is a prospective, multicenter, one-arm phase II clinical study, aimed for evaluating the effectiveness and safety of Olverembatinib combined with Blinatumomab in the treatment of newly diagnosed adult Ph + ALL patients.

Subjects enrolled in this study will be given a 14-day induction regimen of Olverembatinib 40mg qod orally combined with blinatumomab. To prevent cytokine release syndrome (CRS), the subjects are permitted to receive pretreatment with dexamethasone combined with Olverembatinib until the leukocyte count is less than 5 × 109/L. During induction therapy, Blinatumomab will be given in an incremental dose regimen, i.e., 9 μ g/day on days 1 to 3 and 28 μ g/day was used on days 4 to 14, and then stopped for 14 days.

Olverembatinib 40mg qod combined with blinatumomab will subsequently administered as a consolidation regimen. Blinatumomab was given a fixed dose regimen during consolidation treatment, i.e. 28 μ g/day from the day 1 to the day 28, and then stopped for 14 days. A total of 3-4 cycles will be administered, with every 42 days as one cycle.

At the end of the consolidation treatment, the patient received a maintenance regimen of Olverembatinib 40mg qod orally for at least 5 years. If the patient loses molecular response (defined as BCR-ABL1/ABL1 > 0.10%) during maintenance treatment, another consolidation treatment of 3-4 cycles of blinatumomab will be initiated.

During induction and consolidation treatment, lumbar puncture combined with sheath injection will be performed three times every cycle to prevent central nervous system leukemia (CSNL). If CNSL occurs at the time of admission, patients should receive regular conventional lumbar puncture and sheath injection for treating CNSL.

During the treatment, each subject will be evaluated regularly, including hematological response, minimal residual disease (through flow cytology, FCM-MRD), cytogenetic response and molecular remission rate, as well as adverse events. ;

Related Conditions & MeSH terms

• Philadelphia-Positive ALL

• NCT number: NCT05931757
• Study type: Interventional
• Source: The First Affiliated Hospital of Soochow University
• Status: Not yet recruiting
• Phase: Phase 2
• Start date: July 1, 2023
• Completion date: June 30, 2030