WALTHAM, Mass.--(BUSINESS WIRE)--Alkermes, Inc. (NASDAQ: ALKS) today announced the initiation of a multidose phase 1 clinical study of ALKS 37, an orally active, peripherally-restricted opioid antagonist with potential to block the effects of opioid agonists on gastrointestinal motility, commonly referred to as opioid-induced constipation (OIC). The randomized, double-blind, placebo-controlled, repeat-dose study will assess the safety, tolerability and pharmacokinetics of daily oral administration of two dose levels of ALKS 37 for a seven day period in approximately 24 healthy volunteers.
