ANDOVER, Mass.--(BUSINESS WIRE)--TransMedics, Inc., an emerging medical technology company developing advanced solutions for better, more organ transplant technologies, announced today it has received IDE approval to initiate the pilot phase of the PROCEED multi-center clinical trial in the U.S. for its Organ Care System™. The PROCEED trial will evaluate the safety and performance of the Organ Care System (OCS) for heart transplants in the U.S.