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.
Insulet weakness creates buying opportunity, says Wedbush Wedbush believes that Insulet's growth should accelerate as the year progresses, driven by increased adoption of its unique, programmable insulin pump and the launch of Amgen's (AMGN) Neulasta On-Body Delivery System.