Clinical Research Glossary

screen failure screen failure

CDISC

When a person cannot join a study because they do not fit its eligibility criteria.

Example of screen failure in a sentence

A screen failure happens when study requirements prevent someone from being able to enroll in a research study.

More Info

Most research studies have a list of inclusion and exclusion criteria that need to be checked before a person can enroll as a participant.

A screen failure happens when a patient is screened for a study but cannot be enrolled because they do not meet the eligibility criteria.

Some examples of why screen failures happen include:
– the potential participant is the wrong age
– the potential participant does not have a certain condition or disease
– the potential participant has blood test results outside a specific range.

Other info to think about when joining a study

You might see or hear the term “screen failure” if you go through a research study screening process to see if you are a good fit for the study and match its requirements.

Study teams are careful about who can join for safety reasons and to be sure the study question can be answered.

If you are not able to join one study, you can ask the study team about other options. There could be different studies you may be able to participate in.

Version 3.0 September 2025

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