Privacy and Terms
Last updated: November 8, 2026
Privacy
Who is responsible. The AI Trials Observatory’s principal investigator is Ben Tappin, who is responsible for the personal data described here. For any question about it, email [email protected].
Browsing the site. You can read everything here without an account, and we add no cookies to the site. Your choice of light or dark mode is remembered in your browser, and is never sent to us. The site is hosted by Cloudflare, which receives your IP address and the pages you request, as any website host does. We use Cloudflare Web Analytics to count visits; it shows us summary figures only, such as visits per page, never a record of any one person. What Cloudflare collects is described in its privacy policy(opens in a new tab). Sites we link to have their own privacy policies.
The email list. If you sign up, we hold your email address only to email you when the evidence record updates, and only with your consent. The list is run by Mailchimp, which is based in the United States and may store it there; its privacy policy(opens in a new tab) describes how it handles your information. We do not track whether you open our emails or click their links. Every email has an unsubscribe link. Once you unsubscribe we email you nothing more, and if you ask, we delete your address entirely.
If you email us. Your message is kept in our mailbox, provided by Google Workspace (Google’s privacy policy(opens in a new tab)), so we can reply, and is used for nothing else.
Your data and rights. We never sell personal data or use it for advertising or any other commercial purpose. You can ask to see the personal data we hold about you, have it corrected or deleted, and withdraw your consent to the emails at any time; email the address above. If you are unhappy with how we have handled your data, you can write to the Information Commissioner’s Office (ICO)(opens in a new tab), the UK’s data protection regulator.
Terms of use
Not professional advice. The Observatory summarizes published randomized trials for research and public information. It is not medical, clinical or other professional advice, and it cannot tell you what is right for you.
What the summaries can and cannot tell you. Each summary reflects the trials available when its release was made, and new trials may change the picture. The Methodology page and each release report explain how the numbers are produced and their limitations.
Citing our findings. Please cite the release report for the outcome and release you used. Each report has a DOI and never changes once published. The website itself always shows the latest release, so it changes as the record updates.
Reusing our charts and text. Unless marked otherwise, the text, charts and downloadable chart data on this site are licensed under Creative Commons Attribution 4.0 (CC BY 4.0)(opens in a new tab). You may copy, share and adapt them for any purpose, including commercially, as long as you credit the AI Trials Observatory and link to the site, for example: “Source: AI Trials Observatory (aitrialsobservatory.org).” If you adapt a chart, please say so. The license does not cover the Observatory’s name and logo, photographs of people, or the papers and other material we link to, which belong to their own copyright holders.
Corrections. If you spot an error, please tell us at [email protected]. Corrections appear in the next release; earlier releases stay exactly as published, so existing citations remain valid.
Other people’s work. The trials we summarize belong to their authors or other copyright holders. Links to papers and other websites are provided for convenience, and we are not responsible for their content.
No guarantees. We work hard to keep the record accurate, but we cannot guarantee it is complete or free of errors, or that the site will always be available. To the extent allowed by law, we accept no liability for losses arising from use of the site. This does not limit any rights or liability that cannot legally be limited.
Changes to this page. We may update this page; the date at the top shows when it last changed.