Can Stories Encourage the Elderly to Vaccinate? Combining Viewer-tailored Personal Narrative Videos With Informational Videos to Improve Vaccine Uptake Among Older Adults
1 other identifier
interventional
6,000
1 country
1
Brief Summary
This study will compare the use of informational videos only, personal story videos only, and the combination of both, to see which is most effective in increasing vaccination among older adults.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Sep 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 20, 2025
CompletedFirst Posted
Study publicly available on registry
March 24, 2025
CompletedStudy Start
First participant enrolled
September 16, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 24, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 1, 2027
February 13, 2026
February 1, 2026
1 year
March 20, 2025
February 12, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of participants who receive vaccine
Vaccination status. Binary variables (received vs not received) for each vaccine recommended for older adults
9-month follow-up
Study Arms (5)
Control
NO INTERVENTIONno videos
Animation Only
EXPERIMENTALinformational animation video only
Narrative Only
EXPERIMENTALpersonal narrative video only
Narrative Then Animation
EXPERIMENTALpersonal narrative video followed immediately by the informational animation video
Animation Then Narrative
EXPERIMENTALinformational animation video followed immediately by the personal narrative video
Interventions
The informational animation video will also take several minutes and will cover human papillomavirus (HPV) disease, address specific concerns when identified, and the importance and safety of HPV vaccines.
Personal narrative videos will consist of someone describing the person's own personal experience with HPV. The investigators have a collection of videos of personal narratives from different people that the investigators have cut to approximate several minutes in length so the investigators can tailor the personal narratives to match each study participant's race/ethnicity and gender as closely as possible.
Eligibility Criteria
You may qualify if:
- U.S. adults aged 50 and older
You may not qualify if:
- Participants who do not complete the survey
- Participants who are unable or refuse to view and listen to videos on the participant's device
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Ipsos
New York, New York, 10016, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Daniel Salmon, PhD
Johns Hopkins University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 20, 2025
First Posted
March 24, 2025
Study Start
September 16, 2025
Primary Completion (Estimated)
September 24, 2026
Study Completion (Estimated)
January 1, 2027
Last Updated
February 13, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will not share