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Minority participation in randomized controlled trials for obsessive-compulsive disorder
Monnica Williams1, Mark Powers, Yeo-Gin Yun
1Center for the Treatment and Study of Anxiety, University of Pennsylvania, School of Medicine, Department of Psychiatry, Philadelphia, PA 19104, United States. monnica@mail.med.upenn.edu
Minority groups are underrepresented in North American clinical trials for obsessive-compulsive disorder (OCD). This lack of diversity means current OCD treatments may not be effective for all populations.
Area of Science:
- Psychiatry
- Clinical Research
- Health Disparities
Background:
- Clinical trials are essential for developing effective treatments for obsessive-compulsive disorder (OCD).
- Ensuring diverse representation in these trials is crucial for treatment generalizability.
Purpose of the Study:
- To determine if minority groups are underrepresented in published randomized clinical trials for OCD in North America.
- To assess the ethnic and racial demographics of participants in OCD trials.
Main Methods:
- A systematic review of randomized controlled trials (RCTs) for OCD in adults and children conducted in North America from 1989 to 2009.
- Analysis of 40 trials (N=3777), focusing on 21 trials (N=2221) that reported ethnic/racial data.
Main Results:
- Only 22 of 40 trials reported ethnic/racial information.
- In the analyzed trials, 91.5% of participants were Caucasian, with minorities (African-American, Hispanic, Asian, Other) comprising only 5.4% of the total.
- 3.1% of participants had unknown ethnicity/race.
Conclusions:
- Minority groups are significantly underrepresented in North American OCD clinical trials.
- The efficacy of empirically validated OCD treatments for minority populations remains largely unknown.
- Recommendations are needed to improve minority recruitment in future OCD research.
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