FDA Calls On Drug Companies to Release Missing Clinical Trial Data

‘Far too often, companies are suppressing unfavorable clinical trial results,’ the agency’s commissioner said.

Dr. Marty Makary, commissioner of the Food and Drug Administration, in Washington on May 5, 2025. Anna Moneymaker/Getty Images

The Food and Drug Administration is urging pharmaceutical companies to make public data from clinical trials.

About three in 10 studies deemed highly likely to fall under mandatory reporting requirements have no results filed with the government’s clinical trial website, the FDA said on April 13. That is in line with historical estimates.