Healthy volunteers in US phase I clinical trials: Sociodemographic characteristics and participation over time

• Corey A. Kalbaugh,

  Roles Conceptualization, Formal analysis, Writing – original draft, Writing – review & editing

  Affiliations Department of Public Health Sciences, Clemson University, Clemson, SC, United States of America, Department of Bioengineering, Clemson University, Clemson, SC, United States of America

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• Julianne M. Kalbaugh,

  Roles Data curation, Investigation, Project administration, Writing – review & editing

  Affiliation Department of Social Medicine and Center for Bioethics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America

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• Lisa McManus,

  Roles Investigation, Writing – review & editing

  Affiliation Department of Sociology, Wake Technical Community College, Raleigh, NC, United States of America

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• Jill A. Fisher

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

  * E-mail: jill.fisher@unc.edu

  Affiliation Department of Social Medicine and Center for Bioethics, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States of America

  https://orcid.org/0000-0002-9487-1493

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