Clinical Research Glossary

secondary endpoint secondary endpoint


A measure used to answer other important questions in the study that are not the main research question.

Example of secondary endpoint in a sentence

A secondary endpoint can provide more information about the effect of the study treatment.

More Info

A secondary endpoint can help guide researchers to answer other questions related to the study treatment.

A secondary endpoint can also be exploratory, for example, looking for information that might be useful for a future study.

Other info to think about when joining a study

You may see the concept of the “secondary endpoint” written about in the consent form or hear about it from the study team. Additionally, if you visit you may see references to primary and secondary endpoints.

Secondary endpoints are other aspects that the study is designed to measure. If you are unsure of what it means, please ask the study team for clarification. After the study is done and publications are released, you may also read about different types of endpoints.

Some studies might only have a primary endpoint and you will not see anything about a secondary endpoint. This is normal.

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