A total of 379 NIMH-funded clinical trials published between 1995 and 2004 in five major mental health journals were assessed on their inclusion of women and racial/ethnic groups in their study recruitment. Findings showed that whereas most of the studies reported gender information and gender representation was balanced across studies, less than half of the studies provided complete racial/ethnic information. All racial/ethnic groups except Whites and African Americans were underrepresented, a pattern that has not improved significantly over the last decade. Less than half of the studies had potential for subgroup analyses by gender and race/ethnicity.