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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04938895
Other study ID # IRB21-0864
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date June 7, 2021
Est. completion date February 21, 2022

Study information

Verified date May 2023
Source Harvard University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Despite significant racial disparities in health outcomes, racial minority groups in the United States are not adequately represented in clinical trials, and clinical trial results published in major medical journals often underreport racial demographic data of participants. Lack of diversity in clinical trials threatens the generalizability of study results and reduces the ability of minority groups to benefit from medical advancement and innovation. Prior studies show that Black men are more likely to engage in preventive services when there is racial concordance with their healthcare provider. There is minimal literature about how racial concordance or diversity in clinical trial leadership impacts study enrollment. This project examines whether patients' willingness to participate in randomized clinical trials differs based on the characteristics of the investigator.


Description:

We plan to recruit subjects and randomly assign them to one of four treatments. In each treatment arm, the subject will view a photograph of a real NIH investigator. We experimentally vary treatment along two dimensions: whether the sender is Black or white and whether the sender is male or female. Our primary aim is to assess whether the subject's stated willingness to participate in a clinical trial led by the investigator. Our secondary aim is to assess whether the subject is a more objective measure of interest in signing up for information on other clinical trials. To assess mechanisms, we will ask the respondent to rate the subject's perceived trustworthiness and quality of the investigator. In addition, we will also assess the subject's perceived attractiveness and age of the investigator as well as the subject's risk aversion, altruism, time preference, and general trust.


Recruitment information / eligibility

Status Completed
Enrollment 323
Est. completion date February 21, 2022
Est. primary completion date February 21, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 25 Years to 64 Years
Eligibility Inclusion Criteria: - participant identifies as Black or White Exclusion Criteria: - participant doesn't identify as Black or White - younger than 25 years old, older than 64

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Black Respondents Exposure to a Photo
Black survey respondents will be randomly assigned to one of four treatments. In each treatment arm, the subject will view a photo of an NIH investigator. We experimentally vary treatment along two dimensions: whether the investigator is a man v. woman and whether the man is white vs. black. We will survey participants' willingness to participate in a clinical trial and how their initial response is impacted by other characteristics such as perceived trustworthiness and quality.

Locations

Country Name City State
United States Harvard University Cambridge Massachusetts

Sponsors (1)

Lead Sponsor Collaborator
Harvard University

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Willingness to Participate in a Clinical Trial Survey respondents' willingness to participate in a vaccine clinical trial led by the person in the photo. February 17, 2022 - February 19, 2022
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