The U.S. Food and Drug Administration released more than 200 of its so-called complete response letters from its archive on Thursday, in a push to increase transparency under Health Secretary Robert F.

The trove of more than 200 letters is part of a pledge of transparency from the agency, with the intention to increase public insight into the reasons new drug and biologics applications got rejected.

The agency disclosed a tranche of more than 200 complete response letters from the past five years, but only those involving medicines that it later cleared.