Durable MRD-Negative Remission With Blinatumomab and Venetoclax in Heavily Pretreated Relapsed/Refractory Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia.

INTRODUCTION

Tyrosine kinase inhibitors (TKIs) are standard therapy for Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia (ALL); however, relapsed or refractory disease remains challenging due to resistance driven by ABL kinase domain mutations.

METHODS

We report the case of a heavily pretreated patient with relapsed/refractory Ph+ ALL treated with blinatumomab and venetoclax without concurrent TKI therapy.

RESULTS

The patient achieved complete remission and remains in a deep, durable remission exceeding 1 year.

CONCLUSION

This case highlights a potential kinase-independent, TKI-free strategy for relapsed/refractory Ph+ ALL, warranting further investigation.

TRIAL REGISTRATION: The authors have confirmed clinical trial registration is not needed for this submission.