The European Public Health Alliance supports the AllTrials campaign since transparency over trial registration and full access to trials outcomes will benefit not only patients, researchers and health professionals, but ultimately it will also contribute to stimulating innovation by eliminating duplication of work and wasteful use of financial resources. Access to data will allow stratified analyses by gender, age and other parameters. Clearly, making trials results publicly available is also an ethical obligation given that individuals volunteer their time and bodies for the benefit of future patients and thus they should have the right to view comprehensive results.