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Contact Clinical Trial Failures
Use this page for data corrections, source questions, methodology feedback, and website issues. For any trial-specific concern, please include the NCT ID and the exact source text you want reviewed.
Data corrections
If a record looks incomplete, misclassified, or outdated, please verify the ClinicalTrials.gov source page first and include the NCT ID, the current source text, and the correction you suggest.
Email a correction →Methodology questions
The site classifies registry stop language into research buckets such as efficacy/futility, safety, operational, enrollment, regulatory, and other/unknown. These are screening signals, not medical conclusions.
Read how classification works →Website feedback
If something is broken, unclear, or hard to use on mobile or desktop, send the page URL, browser, device, and a short description of the issue.
Email website feedback →Important note
Clinical Trial Failures is a research-support website. It does not provide medical advice, investment advice, clinical recommendations, or a substitute for primary source review.