He is an editor of JAMAevidence, a project for education related to evidence-based medicine sponsored by the American Medical Association.[3][4] He is known for involvement in reform of scientific publishing and for advocating improvements in reporting standards for clinical trials.[5] He was the director of the first seven International Congresses on Peer Review and Biomedical Publication, which he also helped to develop along with JAMA.[2]
He has organized the International Congress on Peer Review and Biomedical Publication (often known as the Peer Review Congress) since 1989, a project he launched after receiving JAMA's support for the effort in 1986.[7]
Rennie was awarded a Mastership of the American College of Physicians in 2005.[10] He received the 2008 AAAS Award for Scientific Freedom & Responsibility, cited “for his career-long efforts to promote integrity in scientific research and publishing”, recognizing “his outspoken advocacy for the freedom of scientists to publish in the face of efforts to suppress their research.”[6]