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Updated: Sep 9, 2025

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Utilization of Broad Consent as an Effective Instrument for Study Recruitment.

Timo Apfelbacher1, Sude Eda Koçman1, Sarah Negash2

  • 1Friedrich-Alexander-Universität Erlangen-Nürnberg, Medical Informatics, Erlangen, Germany.

Studies in Health Technology and Informatics
|September 3, 2025
PubMed
Summary

Broad consent effectively recruited patients for the PEAK study questionnaire, demonstrating a successful strategy for general study participation. Despite initial concerns, patient recontact authorization withdrawals were minimal, highlighting the utility of broad consent beyond its primary purpose.

Keywords:
Artificial IntelligenceBroad ConsentDecision MakingDelivery of Health CareHospitalsResearchUniversity

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Area of Science:

  • Healthcare research methodology
  • Patient recruitment strategies
  • Broad consent utilization in clinical studies

Background:

  • Patient recruitment for studies is challenging and resource-intensive.
  • Broad consent allows patients to agree to future study participation.
  • Erlangen University Hospital and University Hospital Halle utilize broad consent.

Purpose of the Study:

  • To recruit patients for the PEAK study questionnaire using broad consent.
  • To assess the effectiveness of broad consent for general study recruitment.

Main Methods:

  • Patients who previously provided broad consent for recontact were mailed invitations for the PEAK study.
  • The PEAK study questionnaire focused on perspectives regarding Artificial Intelligence (AI) in healthcare.
  • 3,489 patients in Erlangen and 4,000 in Halle were contacted.

Main Results:

  • Erlangen: 580 participants (16.6%) completed the questionnaire.
  • Halle: 451 participants (11%) completed the questionnaire.
  • Minimal patient withdrawals of recontact authorization were observed.

Conclusions:

  • Broad consent can be successfully utilized for general study recruitment beyond its intended use.
  • Concerns about widespread consent withdrawal were largely unfounded.
  • Implementing vital status checks before contacting patients is crucial for efficient recruitment.