ImmunoGen to present IMGN901 clinical data on multiple myeloma at 54th ASH annual meeting

Published on December 11, 2012 at 1:14 AM · No Comments

ImmunoGen, Inc. (NASDAQ: IMGN), a biotechnology company that develops anticancer therapeutics using its Targeted Antibody Payload (TAP) technology and antibody expertise, today announced the presentation of new clinical data with the Company's targeted anticancer compound, IMGN901. The data were from a Phase I clinical study assessing IMGN901 used in combination with lenalidomide (Revlimid®) and dexamethasone to treat patients with CD56-expressing relapsed or relapsed/refractory multiple myeloma. The data were reported in an oral presentation (abstract #728) at the 54th American Society of Hematology (ASH) Annual Meeting and Exposition in Atlanta, Georgia.

"The level and duration of the responses to the study regimen confirm the activity seen with IMGN901 in earlier trials - where it was evaluated as single-agent therapy - and support the further development of IMGN901 as a treatment for CD56-expressing cancers," commented James O'Leary, MD, Vice President and Chief Medical Officer.

The trial was designed to assess IMGN901, given weekly for three weeks in a 4-week cycle, used in combination with lenalidomide and dexamethasone. As reported previously, a dose of 75 mg/m2/week was established for IMGN901 in the dose-finding phase of the trial for evaluation in its expansion phase. Patients received lenalidomide and dexamethasone at standard doses (25 mg daily for 21 days in a 4-week cycle and 40 mg weekly for four weeks, respectively).

A total of 44 patients with relapsed or relapsed/refractory multiple myeloma were enrolled in the trial. Most of the patients had previously received bortezomib (Velcade®) (91%) and/or lenalidomide (59%), and many had received prior thalidomide (46%). Many patients also had received prior alkylating agents (64%) and/or anthracyclines (41%). About half of the patients had prior stem cell transplant.

The response findings reported for the 39 efficacy-evaluable patients included:

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