Willingness to participate in cardiac trials

Eric D Peterson1, Barbara L Lytle, Mimi S Biswas

  • 1The Outcomes Research and Assessment Group, The Duke Clinical Research Institute, Durham, NC 27710, USA. peter016@mc.duke.edu

Insights

Patient interest in clinical trials varies by demographic. Elderly and minority patients show willingness to participate in randomized clinical trials (RCTs), but women are less likely to consider them.

Area of Science:

  • Clinical research
  • Cardiovascular medicine
  • Health equity

Background:

  • Underrepresentation of elderly, women, and minorities in randomized clinical trials (RCTs) is a persistent issue.
  • The reasons for these disparities, particularly patient interest, remain unclear.

Purpose of the Study:

  • To investigate whether differential patient interest contributes to the underenrollment of specific demographic groups in cardiac randomized clinical trials (RCTs).

Main Methods:

  • A survey was conducted with 660 patients regarding their willingness to participate in two hypothetical cardiac RCTs.
  • The RCTs compared medical therapy vs. percutaneous coronary angioplasty and medical therapy vs. coronary artery bypass surgery.
  • Patient demographics including age, sex, and race were recorded.

Main Results:

  • Patients aged 70 years and older were equally or more likely to consider both RCTs compared to younger patients.
  • No significant impact of race on trial consideration was observed.
  • Women were significantly less likely than men to consider participation in either RCT.

Conclusions:

  • Patient willingness to consider participation does not explain the underenrollment of elderly and minority populations in cardiac RCTs.
  • Women's reluctance to consider RCT participation warrants further investigation to address sex-based disparities in clinical research.

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