A Census of Clinical Trials Conducted Under the US Exception from Informed Consent Rule

Background The US Food and Drug Administration and National Institutes of Health adopted the Exception from Informed Consent (EFIC) rule in 1996, permitting waiver of informed consent for certain emergency research, including trials funded by the federal government. The rule requires that prospective consent be sought when practicable from patients or their Legally Authorized Representative(s) (LAR), and for those enrolled without consent, the patient or their LAR must be given information and an opportunity to opt-out from continued participation at the earliest opportunity. We sought to census the trials conducted under the EFIC rule to facilitate research to better understand how the rule is being used.