The New Zealand Medical Association (NZMA) is the country’s largest voluntary pan-professional medical organisation. We aim to provide leadership of the medical profession, promote professional unity and values, and the health of New Zealanders. We welcome the opportunity to sign the AllTrials petition. The NZMA strongly supports clinical trial registration and the mandatory publishing of all results, whether positive or negative. These measures are aligned with the requirements in the Declaration of Helsinki. We believe that the AllTrials initiative should help ensure that all information from clinical trials is available so that the knowledge base for the optimal care of patients can be developed accurately and efficiently.