We’re sometimes asked if it’s still true that around half of clinical trials have never reported results. Yes, it is.
Some people point towards recent studies that found a higher rate of publication than that. Great! With all the campaigning, new laws, new regulations and emerging codes of conduct we and others have worked towards, it comes as no surprise that the situation is gradually improving. But these studies look at clinical trials conducted very recently, often on the newest drugs, and therefore represent a tiny fraction of all the clinical trials that have ever been conducted. There’s a massive backlog of unpublished trials reaching back decades. A large proportion of these past trials, or tens of thousands of new trials, would have to publish results for the percentage of unpublished trials to change significantly...
Read the full story and sign the petition here: AllTrials – Half of all clinical trials have never reported results
