%0 Journal Article %@ 2561-6722 %I JMIR Publications %V 6 %N %P e44252 %T Comprehension by Caregivers and Adolescents of Clinical Trial Information Delivered via Multimedia Video Versus Conventional Practice: Nonrandomized Controlled Trial %A Blake,Kathryn V %A Antal,Holly %A Bunnell,H Timothy %A He,Jiaxian %A Henderson,Robert %A Holbrook,Janet T %A McCahan,Suzanne M %A Pennington,Chris %A Rogers,Linda %A Shade,David %A Sugar,Elizabeth A %A Taylor,Alexandra %A Wise,Robert A %A Wysocki,Tim %+ Center for Pharmacogenomics and Translational Research, Nemours Children's Health, 807 Children's Way, Jacksonville, FL, 32207, United States, 1 9046865047, kathryn.blake@nemours.org %K adolescent %K clinical trial %K comprehension %K informed consent %K internet %K multimedia %D 2023 %7 22.6.2023 %9 Original Paper %J JMIR Pediatr Parent %G English %X Background: Research participants often misunderstand the required elements of informed consent information, whether provided in written or oral format. Informed consent instruments with embedded evidence-based learning theory principles administered in multimedia electronic formats may improve comprehension and retention. Objective: This study aims to determine whether study information comprehension and retention using an interactive multimedia video consent process was noninferior to comprehension and retention after an in-person face-to-face interaction with a conventional written consent document for caregivers and adolescents enrolled in a clinical trial. Methods: Participants were caregivers and children aged 12 to 17 years who were enrolled in a clinical trial of asthma treatment. Consent information was presented as a multimedia web-based video consent interaction or as a conventional written consent document with in-person interaction between the prospective participants and the study staff. The trial used a parallel nonrandomized noninferiority design that compared the 2 consent methods. Caregivers and adolescents completed a 17-item open-ended comprehension questionnaire (score range 17-51) at enrollment and at the end of the study 20 weeks later. Comprehension and retention were compared between the consent formats. Noninferiority was established if the 95% CI upper bound of the difference in scores (conventional format minus web-based) was less than the noninferiority margin of 2.4; superiority was established if the upper bound of the CI was <0. Results: In total, 54 caregiver and adolescent dyads completed the interactive multimedia web-based video consent, and 25 dyads completed the conventional consent. Overall, 33% (26/79) of all adolescents were Black, 57% (45/79) were male, and 61% (48/79) had a household income of