If you extract any email addresses or other contact information from our database, you should not use it for marketing or other promotional purposes. Please let us know about such addresses via our correction form or [email protected], so that we can remove or obfuscate them as appropriate.
We collect information from reputable sources, but we make no promises about the completeness, timeliness, or accuracy of the information we store and display. For example, we:
- Gather some data from historical sources, which may have gaps common to any historical record;
- May not be able to access all updates from the original sources, so a trial may be listed as ongoing after it has closed, or may not list all outcomes of the trial; and
- Gather information from formats that may not perfectly preserve the original information, such as databases that contain scans of PDFs.
If you’re aware of such an issue, we invite you to submit corrections to us! We will attempt to correct it when possible.
We do not endorse the scientific, clinical, or ethical aspects of the trials we publish.
The information we publish is not a recommendation to use a particular medicine or participate in a particular trial. If you have questions about a particular treatment, please consult a healthcare professional.
Content and intellectual property
Using content from this site
You are free to use the data published on this site for any purpose, subject to the following conditions:
- Content created by third parties is offered to you under their terms. Please see the full list of sources and links to their licensing terms, where available, in the External Sources section on this page. You should refer to the original source if you have questions about your rights to use this content.
- Content we create, or which contributors submit directly to us, is offered under the Creative Commons Public Domain Dedication (usually called "CC0"). However, we encourage you to give appropriate credit to OpenTrials and OpenTrials contributors. For more details, see the full text of the license.
In addition, when using this data, we encourage you to:
- Note the date you retrieved the data from us; and
- Describe any modifications you made to the data.
Giving your content to us
If you contribute your data or content to us, for example by uploading it to our data contribution page, then you agree to license that content to the public under the Creative Commons Public Domain Dedication (usually called "CC0"). We will encourage others to attribute the material to you, as described in the previous section.
If you would like to contribute data to us, but cannot agree to the CC0 license, please send us an e-mail at [email protected].
Taking down content
If you believe that any content on OpenTrials is hosted in violation of relevant law, please notify us through this form.
Our softwareThe source code behind OpenTrials is available under a free license on GitHub.
We may update these terms at any time. If we do so, we will announce the change on the OpenTrials website. Any changes will be binding on you when we announce them.
- ClinicalTrials.gov (Terms and Conditions)
- Cochrane Schizophrenia Group
- EU Clinical Trials Register (Terms and Conditions)
- FDA Drug Labels (Terms and Conditions)
- GlaxoSmithKline (Terms and Conditions)
- Health Research Authority (Terms and Conditions)
- ISRCTN (Terms and Conditions)
- PubMed (Terms and Conditions)
- U.S. Food and Drug Administration
- WHO ICTRP (Terms and Conditions)