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Updated: Nov 17, 2025
Chemical Inactivation of the E3 Ubiquitin Ligase Cereblon by Pomalidomide-based Homo-PROTACs
Published on: May 15, 2019
CC-90009: A Cereblon E3 Ligase Modulating Drug That Promotes Selective Degradation of GSPT1 for the Treatment of
Joshua D Hansen1, Matthew Correa1, Matt Alexander1
1Bristol Myers Squibb, 10300 Campus Point Drive, Suite 100, San Diego, California 92121, United States.
Abstract:
Acute myeloid leukemia (AML) is marked by significant unmet clinical need due to both poor survival and high relapse rates where long-term disease control for most patients with relapsed or refractory AML remain dismal. Inspired to bring novel therapeutic options to these patients, we envisioned protein degradation as a potential therapeutic approach for the treatment of AML. Following this course, we discovered and pioneered a novel mechanism of action which culminated in the discovery of CC-90009. CC-90009 represents a novel protein degrader and the first cereblon E3 ligase modulating drug to enter clinical development that specifically targets GSPT1 (G1 to S phase transition 1) for proteasomal degradation. This manuscript briefly summarizes the mechanism of action, scientific rationale, medicinal chemistry, pharmacokinetic properties, and efficacy data for CC-90009, which is currently in phase 1 clinical development.
