The FDA has granted a standard approval to venetoclax (Venclexta) for the treatment of patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL), with or without 17p deletion, following at least 1 prior therapy. The BCL-2 inhibitor is now also approved for use in combination with rituximab (Rituxan) in the same patient population.
The PFS benefit extended across patients subgroups, including high- and low-risk groups. The 2-year PFS rate among patients with chromosome 17p deletion was 81.5% in the venetoclax arm versus 27.8% with BR (HR, 0.13; 95% CI, 0.05-0.29). For patients without chromosome 17p deletion, the 2-year PFS rate was 85.9% versus 41.0% in favor of the venetoclax arm (HR, 0.19; 95% CI, 0.12-0.32).
Two-year event-free survival also favored the venetoclax group (84.9% vs 34.8%; HR, 0.17; 95% CI, 0.11-0.25). The rate of overall survival (OS) favored the venetoclax arm at 24 months (91.9% vs 86.6%). However, the difference was not statistically significant and neither arm reached median OS (HR, 0.48; 95% CI, 0.25-0.90).
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