Dren Bio Expands Strategic Collaboration with Sanofi to Develop Next-Generation B-Cell Depletion Therapy

12.15.25

SAN CARLOS, Calif.–(BUSINESS WIRE)–Dren Bio, a privately held, clinical-stage biotechnology company developing first-in-class myeloid cell engager therapeutics, announced today that it has entered into a strategic collaboration with Sanofi (NASDAQ: SNY) for the discovery and development of a next-generation B-cell depleting therapy for the treatment of various autoimmune diseases.

The new agreement builds on the existing relationship between the two companies, following Sanofi’s acquisition earlier this year of Dren Bio’s DR-0201 program for deep B-cell depletion.Â