All Trials Registered, All Results Reported is an initiative of Sense About Science, Bad Science, BMJ Group, James Lind Initiative, the Centre for Evidence-based Medicine and others from research, patient groups and medicine.

The All Trials website highlights the benefits of registering and reporting all clinical trials, whatever their outcomes, and expresses concern about lack of progress in this area. The website includes a public petition calling on responsible bodies to implement measures to ensure that all trials, past and present, and for all treatments, are registered; and that the full methods and results are reported.