The British Medical Journal (BMJ), a leading, peer-reviewed medical journal, has announced that beginning in January 2013 it will require all authors of drug or device clinical trials who publish in BMJ – whether industry-funded or not – to provide detailed scientific study data to anyone with a reasonable request. Although the policy specifics are still under discussion, it is expected trial data down to the anonymised patient level would be required. In addition, BMJ will publicize instances in which requests for data were rejected by authors.