Clinical trial registration

Abstract

Footnotes Competing interests: Employment: FG was previously editorial director of Current Controlled Trials, which owned the ISRCTN (International Standard Randomised Controlled Trial Number) trials register; SK is employed by the National Library of Medicine, which produces ClinicalTrials.gov, but he is not responsible for activities or policies regarding ClinicalTrials.gov. Expert testimony: FG. Other: RH is co-chair and JMD and HCS are members of the WHO ICTRP scientific advisory group; MBVDW is a member of the government advisory committee for the Australian and New Zealand Clinical Trials Registry. PS's affiliation as a representative and past president of the World Association of Medical Editors (WAME) does not imply endorsement by WAME member journals that are not part of the ICMJE.