CAMBRIDGE & LEXINGTON, Mass.--(BUSINESS WIRE)--Alkermes, Inc. (Nasdaq: ALKS) and Indevus Pharmaceuticals, Inc. (Nasdaq: IDEV) today announced the initiation of a phase 2a clinical study of ALKS 27 in patients with chronic obstructive pulmonary disease (COPD). ALKS 27 is an inhaled formulation of trospium chloride based on Alkermes’ proprietary AIR® pulmonary technology. The study will assess the safety, tolerability, pharmacokinetics and efficacy of single doses of ALKS 27 and is designed to further define the clinical profile of ALKS 27 in patients with COPD.