LEXINGTON, Mass. & EXTON, Pa.--(BUSINESS WIRE)--Cubist Pharmaceuticals, Inc. (NASDAQ: CBST) and Adolor Corporation (NASDAQ: ADLR) today announced the expiration of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (HSR Act) in connection with Cubist’s previously announced acquisition of Adolor.