Profile: Acceleron Pharma, Inc. focuses on the biology of the growth & differentiation factor of protein family, and streamlining the development of novel therapies. Our ACE-011 is developed for bone disease associated with multiple myeloma & other cancers, and it works by inhibiting activin, a negative regulator of bone mass, thereby freeing the body to rebuild bone mass & strength. Our ACE-031 is used to treat diseases involving the loss of muscle mass, strength and function in diseases including muscular dystrophy, amyotrophic lateral sclerosis & cancer-related muscle loss.