Lisaftoclax: First Approval.

Lisaftoclax is a B-cell lymphoma 2 (BCL-2) inhibitor developed by Ascentage Pharma for the treatment of haematological malignancies. It is administered using a 5-day ramp-up schedule, reaching the target dose on day 6. Lisaftoclax received its first approval on 10 July 2025 in China for the treatment of chronic lymphocytic leukaemia (CLL) or small lymphocytic lymphoma (SLL) in adult patients who had received at least one prior systemic therapy, including a Bruton's tyrosine kinase (BTK) inhibitor. This article summarizes the milestones in the development of lisaftoclax leading to this first approval for CLL/SLL.