Investigator racial diversity and clinical trial participation

Marcella Alsan, Romaine A. Campbell, Lukas Leister and Ayotomiwa Ojo

Journal of Health Economics, 2025, vol. 100, issue C

Abstract: We investigate whether increased racial diversity of clinical trial principal investigators could increase the enrollment of Black patients, which currently lags population and disease-burden. We conducted a survey experiment in which respondents were shown a photo of a current NIH investigator in which race (Black/White) was randomized. Sex was also randomized as a relevant benchmark. Black respondents reported 0.35 standard deviation units higher interest in participating in a clinical study led by a race concordant investigator (a 12.6% increase). Sex concordance had no effect. Further analyses indicate that perceived trustworthiness and attractiveness are the most important factors explaining these results.

Keywords: Diversity; Equity; Clinical trials; Innovation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jhecon:v:100:y:2025:i:c:s0167629625000025

DOI: 10.1016/j.jhealeco.2025.102968

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