Xencor initiates Phase 1b/2a trial of XmAb5871 Xencor announced that the first patient has been dosed in a Phase 1b/2a clinical trial of XmAb5871 in patients with moderate to severe rheumatoid arthritis. XmAb5871 is the first in a new class of therapeutic antibodies targeting the CD32b pathway in B cells, which shows potential to suppress autoimmune disorders without the side effects caused by B cell depletion. The trial initiation triggered a milestone payment of an undisclosed amount to Xencor from Amgen. XmAb5871 is a humanized and Fc engineered monoclonal antibody that uses a uniquely selective dual-targeting mechanism for B cell inhibition by co-engaging CD19 and CD32b. Amgen and Xencor entered into an option and co-development agreement for XmAb5871 in January 2011. Amgen has the option to an exclusive worldwide license following the completion of a pre-defined Phase 2 study. Xencor will lead all clinical development until that time and is eligible for early development milestone payments.
Teva data quite strong, says Bernstein After Teva (TEVA) announced data for its TEV-48125 drug in episodic migraine, Bernstein notes that the drug met its primary and secondary endpoints. The firm says that the reduction in migraine days of Teva's drug appears to be higher than what Amgen (AMGN) and Lilly (LLY) have shown. The firm continues to see the migraine treatments from Teva and Alder as better than those from Lilly and Amgen.