Implementation of Changes for Basic Experimental Studies with Humans
National Institutes of Health (NIH)
About this opportunity
NOT-OD-26-032 - Basic Experimental Studies With Humans (BESH) Will No Longer Be Considered Clinical Trials by the NIH NOT-OD-25-134 - Flexibilities for Registration and Results Reporting of Prospective Basic Experimental Studies With Human Participants NOT-OD-18-212 - Delayed Enforcement and Short-Term Flexibilities for Some Requirements Affecting Prospective Basic Science Studies Involving Human Participants This Guide Notice provides implementation details to the extramural research community for applications and proposals including Basic Experimental Studies Involving Humans (BESH). NIH announced in NOT-OD-26-032 that it will no longer characterize BESH as clinical trials, effective for competing applications submitted for due dates on or after May 25, 2026. As a result, BESH will no lo...