
In 2006, a new study on antidepressants was making headlines with its promising results: Two-thirds of participants who tried various antidepressants recovered from their depression symptoms within less than a year. The findings seemed to offer hope to the tens of millions of Americans who suffer from depression.
But Henry Edmund "Ed" Pigott, then a psychologist in private practice, wasn't buying it. After further exploring the study — a major National Institutes of Health trial that enrolled 4,000 patients — he was convinced that the researchers’ methods greatly inflated their results, almost doubling them. In other words, the drugs may work, but not for as many people as the study suggested.