The hidden side of clinical trials

Watch the AllTrials TEDx talk on YouTube

Learn more

Evidence matters to the public

Join us on 1st November at Parliament to make the case

Learn more

Plant Science Panel

Insecticides, biofuels, GMOs …

Learn more

'The Ugly Truth'

by Tracey Brown, director of Sense About Science

Learn more



The AllTrials campaign calls for every clinical trial, past and present, to be registered and their results reported.  Only around half of all clinical trials ever conducted have reported results, and thousands more have never even been registered. Information on what was done and what was found in these trials could be lost forever - leading to bad treatment decisions, missed opportunities for new medicine, and trials being needlessly repeated. 

Launched in January 2013, the AllTrials petition has been signed by over 86,000 people and 600 organisations around the world. Read the story of the campaign, see who is running the campaign and find out who supports it.

The AllTrials campaign relies on your donations. You can donate at or email [email protected] to donate in other ways.

To find out more or sign the petition visit:

AllTrials logo