CAMBRIDGE, Mass.--(BUSINESS WIRE)--ARIAD Pharmaceuticals, Inc. (NASDAQ: ARIA) today announced the completion of patient enrollment in its pivotal, Phase 3 clinical trial of oral ridaforolimus, its investigational mTOR inhibitor, in patients with metastatic soft-tissue and bone sarcomas. The Company believes that this international study is the largest clinical trial to be conducted in patients with sarcomas. It was initiated in September, 2007 and took just over two years to fully accrue.