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Peer-Reviewed Publication
Blood Neoplasia2026;3(3):100237.August 1, 2026Journal Article

Real-world clinical outcomes in patients with CLL previously treated with covalent BTKi and BCL2i regimens.

Jennifer Prescott1, Christina M Parrinello2, Ahmed Sawas2, Enrico De Nigris3, Jing Yang1, Erik Bloomquist1, Indu Shrivastava1, Changxia Shao1, Xinyue Liu1, Mohammed Z H Farooqui1, Sameer A Parikh4
1Merck & Co, Inc, Rahway, NJ.
2Flatiron Health, New York, NY.
3Merck Sharp & Dohme (UK) Limited, London, United Kingdom.
4Division of Hematology, Mayo Clinic, Rochester, MN.

Abstract

Patients with chronic lymphocytic leukemia (CLL) who are double-exposed (DE) or double-refractory (DR) to covalent Bruton tyrosine kinase inhibitors (cBTKi) and B-cell lymphoma 2 inhibitors (BCL2i) have limited treatment options and poor outcomes. We evaluated real-world treatment patterns, response, and time-to-event (TTE) outcomes in patients with DE CLL (N = 264), and among the DE-only (ie, DE…

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