Waitlist Zero supports open science and making sure all medicine is approved for use with the fullest and best information available. The ‘file drawer’ problem of publication bias is more than academic: it affects the health and safety of patients throughout the world. Drugs have side effects, and those side effects can be serious. No one should ever take a drug because regulators inadequately understood the context for its research. We as a society owe it to patients to make the trade-off between benefits and risks as unbiased and well-informed as possible. Waitlist Zero is proud to support the AllTrials campaign and looks forward to its success.