ARV-393 is an orally active proteolysis-targeting chimera (PROTAC) that utilizes the ubiquitin-proteasome system to target the degradation of BCL6. It consists of ligand conjugates that target BCL6 and the E3 ligase cereblon, respectively. ARV-393 has demonstrated DC50 and GI50 values of less than 1 nM in multiple cell lines of diffuse large B-cell lymphoma (DLBCL) and Burkitt lymphoma (BL). Additionally, it has shown considerable tumor suppressor activity in tumor xenograft models. ARV-393 is currently being studied for its potential to inhibit non-Hodgkin lymphoma.
ARV-393 is an investigational PROTAC designed to degrade B-cell lymphoma 6 protein (BCL6), a transcriptional repressor and major driver of B-cell lymphomas. The BCL6 protein facilitates B cell tolerance of rapid proliferation and somatic gene recombination via repressing cell cycle checkpoints, terminal differentiation, apoptosis, and the DNA damage response.
