Withdrawing from a Research Study

A participant can leave a research study at any time. When withdrawing from the study, the participant should let the research team know that he/she wishes to withdraw. A participant may provide the research team with the reason(s) for leaving the study, but is not required to provide their reason.

Depending on the type of study, the participant may be given a variety of instructions for ending his/her participation in the study. For instance, a participant may be given instructions on how to safely stop using study medications. Instructions may also be given on who to contact if there are any questions or concerns that arise after completing the study. The research team may need to have the participant return so that he/she can be monitored for any future adverse effects from the study treatments, procedures, or interventions.

If the study involves collection of health information, at the time of withdrawal, the research participant should let the research team know if he/she will allow the continued collection and use of his/her health information by the researchers.

If a participant would like to send a letter to withdraw from a study, use this sample withdrawal template.