RICHMOND, VA., June 25, 2009 - Insmed Inc. (NASDAQ CM: INSM), a biopharmaceutical company, today announced results from its exploratory U.S. Phase II clinical trial evaluating IPLEX™ (mecasermin rinfabate) in patients with myotonic muscular dystrophy (“MMD”). The randomized, double-blind, placebo-controlled Phase II trial conducted in 13 centers across the U.S.