QResearch, a not-for-profit research collaboration between the University of Nottingham and EMIS, (www.qresearch.org) supports the AllTrials campaign. We agree all clinical trials should be registered, their methods and results published in a timely and transparent fashion. This will enable science to progress and for the risks and benefits of interventions to be properly quantified. The information can then be safely used to  help inform clinical and policy decisions.