WALTHAM, Mass.--(BUSINESS WIRE)--ImmunoGen, Inc. (Nasdaq: IMGN), a biotechnology company that develops targeted antibody-based anticancer products, today announced the start of clinical testing with SAR566658. Eight compounds are now in the clinic through ImmunoGen’s product programs and those of its partners, consistent with Company expectations of as many as 12 such compounds being in the clinic by late 2011 and marked, sustained pipeline growth thereafter.
