Clinical Research Glossary

study suspension study suspension

CDISC

A decision to pause a study, made by a group that oversees or is responsible for research.

Example of study suspension in a sentence

A study suspension can be issued by a sponsor, principal investigator or Institutional Review Board (IRB) due to concerns about the study.

More Info

A study suspension is a formal and mandatory pause or delay of a clinical research study.

A study suspension often occurs due to issues like participant safety concerns, new information that could negatively affect the study’s conduct, problems that have occurred, or supply issues.

When a study is suspended, the study is still open. No new participants may be enrolled. How participants currently on the study are treated and cared for is based on their best interests. The study team still tracks issues that arise, like adverse events.

Other info to think about when joining a study

If there is a study suspension of a research study you are participating in, you can ask the team what the reason was, what the plans to address the concerns are, and when there will be more information about whether the study will continue.

You should ask any questions you have about what the study suspension means for you and how you will be taken care of during the pause.

Version 4.0 September 2026

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