BeiGene Gets Fast Track on Leukemia Therapy
FDA has granted BeiGene a fast track designation for BGB-16673 and its use in adult patients with relapsed or refractory (R/R) chronic lymphocytic leukemia or small lymphocytic lymphoma (CLL/SLL) who have been previously treated with at least two prior lines of therapy, including a Bruton’s tyrosine kinase (BTK)-inhibitor and a B-cell lymphoma 2 inhibitor.
The designation was based on the potential for BGB-16673 to address an unmet medical need for patients CLL/SLL whose disease has progressed. “Data from ongoing first-in-human Phase 1/2 (NCT05006716) presented at the European Hematology Association 2024 Hybrid Congress in June highlighted the tolerable safety and promising efficacy in heavily pretreated patients with R/R CLL/SLL,” the company says. To date, more than 300 patients have been treated in 15 countries across the BGB-16673 global clinical development program, it adds.
CLL is a type of mature B-cell malignancy in which abnormal leukemic B lymphocytes flood peripheral blood, bone marrow, and lymphoid tissues. BGB-16673 is described as an orally available BTK-targeting chimeric degradation activation compound designed to induce degradation of wildtype and multiple mutant forms of BTK, including those that commonly confer resistance to BTK inhibitors in patients who experience progressive disease.