http://www.sciencemag.org/news/2018/07/nih-delays-controversial-clinical-trials-policy-some-studies

Some basic studies, such as a project at the University of Minnesota in Minneapolis studying teenagers’ behavior, are now considered clinical trials by the National Institutes of Health.

Basic brain and behavioral researchers will get more than a year to comply with a new U.S. policy that will treat many of their studies as clinical trials. The announcement from the National Institutes of Health (NIH) appears to defuse, for now, a yearlong controversy over whether basic research on humans should follow the same rules as studies testing drugs.