Sunesis Pharmaceuticals, Inc. announced that the company has opened the 100 mg cohort in the Phase 1b/2 trial of its non-covalent BTK inhibitor vecabrutinib in adults with relapsed/refractory chronic lymphocytic leukemia (CLL) and other B-cell malignancies. Preliminary safety, pharmacokinetic, and pharmacodynamic data from the now completed 50 mg cohort of the study were recently presented at the 60th American Society of Hematology (ASH) Annual Meeting in December 2018.