After making a tool that tracks how well drug testers follow U.S. law, researchers turned to an even bigger market for drug trials: the European Union.
A new review finds that, 20 years on, the National Institutes of Health hasn't fulfilled its promise to check whether drugs are safe and effective among people of all backgrounds.
According to United States law, studies of potential medicines and diagnostics are supposed to make their results publicly available within 12 months. But up to half of studies don’t follow the rules—and no one has ever faced penalties.