Clinical Trial

Effect of Communicating Structured Benefit and Harm Information in European Patient Leaflets on Individuals' Expectations About Medicines

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Record status
This record was last updated July 11, 2025 (before its estimated August 2025 completion). Its status may not reflect the trial's current state.
Summary
This online randomized controlled trial will evaluate whether adding a key information section to patient information leaflets leads to more accurate expectations and improves participants' understanding. We will test the impact of including quantitative information on drug benefits in addition to qualitative statements, versus including qualitative statements only. Participants will be randomly assigned to one of three groups: (1) a standard patient leaflet that contains no information on drug benefits, (2) a leaflet featuring a key information section that includes qualitative statements about drug benefits, or (3) a leaflet featuring a key information section that includes quantitative information about drug benefits in addition to qualitative statements.
Trial Details
NCT Number NCT07061197
Lead Sponsor London School of Economics and Political Science
Collaborators: King's College London
Conditions Cancer
Enrollment 2,100 participants
Start Date 2025-08
Primary Completion 2025-08 (estimated)
Study Completion 2025-08 (estimated)
Updated on ClinicalTrials.gov 2025-07-11