Potent and Orally Bioavailable BCL6 PROTAC TM Degraders Demonstrate Efficacy in Pre-Clinical Models of Diffuse Large B-Cell Lymphoma (DLBCL)

The BCL6 transcription repressor (B-cell lymphoma 6, BCL6) protein has been shown to be a key molecular driver of diffuse large B-cell lymphoma (DLBCL). Somatic mutations of the BCL6 gene include gross- or cryptic-chromosome translocations and point mutations that have been shown to result in the deregulation of BCL6 expression. These BCL6 abnormalities also contribute to a subgroup of high-risk (HR) aggressive double- and triple-hit (DH/TH) lymphomas with very poor outcomes. We have developed highly specific, potent and orally bioavailable BCL6 PROteolysis TArgeting Chimera (PROTAC TM) degraders that demonstrate potent in-vitro and in-vivo efficacy in multiple pre-clinical DLBCL models.