April 22, 2025: New Report Highlights Value of Informing Participants About Research Conducted Under a Waiver of Consent

Even in minimal-risk studies that do not use the standard consent process, there may be value in informing participants about the research. Such notifications should be considered the default for clinical trials conducted under a waiver of informed consent, argue the authors of a new report from the NIH Pragmatic Trials Collaboratory.

The open-access article was published online ahead of print this week in Learning Health Systems.

Pragmatic clinical trials conducted in the context of routine healthcare often meet the regulatory criteria for a waiver or alteration of the standard informed consent process. In such cases, researchers and reviewers might assume there is no reason to communicate information about the study to participants. However, providing information to participants, even in minimal-risk research conducted with a waiver of consent, can promote important ethical values.

Experts from the NIH Collaboratory’s Ethics and Regulatory Core teamed up with investigators from several of the NIH Collaboratory Trials to describe methods of informing participants in minimal-risk research.

The investigators used a variety of notification approaches in their studies, including letters and email campaigns, posters in waiting rooms and other common areas, conversations with clinicians, and presentations at staff meetings. The amount of information provided to participants ranged from a general statement that research was being conducted at the institution to detailed information about the study in question.

“When a study is approved with a waiver of research consent, investigators and review committees should consider on a case-by-case basis what information, if any, to disclose to participants, and how it will be disclosed,” the authors wrote. The costs, benefits, and feasibility of these approaches vary from study to study.

Communicating information to participants can promote several important goals:

  • The ethical principle of respect for persons
  • Participants’ understanding of the study and of research in general
  • Participants’ understanding of their contributions to the research
  • Participants’ ability to voice and discuss any concerns about the study
  • Participant engagement in research
  • Trust in research and researchers

“Providing information to the participants should thus be the default for trials conducted under a waiver of research consent,” the authors wrote.

Read the full report.