Stories to Prevent (StoP) HPV Cancers
1 other identifier
interventional
200
1 country
1
Brief Summary
This randomized controlled trial (RCT) evaluates the association of a narrative communication intervention on human papillomavirus (HPV) vaccination rates among 9- to 12-year-olds. The intervention is a brief video from local cancer survivors narrating their stories with an HPV-related cancer diagnosis and recommending the HPV vaccine for cancer prevention. RCT participants will be the parents (n=200) of children ages 9-12 who have not initiated HPV vaccination. Participants will be randomized (1:1) to our intervention or control (placebo video) one week before their child's next primary care visit. Our primary outcome is HPV vaccine initiation (first dose of the HPV vaccine series) among children ages 9-12 at the time of the wellness visit. The study also explores the effect of narratives on theory-based mediators of HPV vaccination, including parents' cognitive (e.g., risk perception) and emotional reactions (e.g., hope, anticipated regret).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Nov 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
January 29, 2025
CompletedFirst Posted
Study publicly available on registry
February 5, 2025
CompletedStudy Start
First participant enrolled
November 18, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 30, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 31, 2027
February 24, 2026
February 1, 2026
12 months
January 29, 2025
February 20, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
HPV vaccine initiation, 9-12 year olds
The proportion of children ages 9-12 who have initiated HPV vaccination (first dose) during their scheduled clinic visit.
One week after clinic visit
Secondary Outcomes (10)
HPV vaccine initiation stratified by age
One week after clinic visit
HPV vaccine initiation stratified by sex
One week after clinic visit
HPV vaccine initiation stratified by race/ethnicity
One week after clinic visit
HPV vaccine communication in clinics
One week after clinic visit
Believability
One week after the intervention
- +5 more secondary outcomes
Study Arms (2)
Cancer survivor narrative video
EXPERIMENTALParents randomly assigned to this arm will receive the video intervention using their personal devices around two weeks before their child's wellness visit. The video will be approximately 4 minutes in length with three parts: (1) Cancer experience, (2) Vaccine recommendation, and (3) Closing message.
Placebo video
PLACEBO COMPARATORParents randomly assigned to this arm will receive the placebo video using their personal devices around two weeks before their child's wellness visit. The placebo video is about healthy eating tips for families with children. The video will be approximately 4 minutes in length.
Interventions
A publicly available video about healthy eating tips for families with children.
The narrative video intervention has three parts: (1) Cancer experience - the cancer survivor narrates his/her experience with an HPV-related cancer, including diagnosis, treatment, and how cancer affected their personal life or family; (2) Vaccine recommendation - the cancer survivor provides brief information about the safety and effectiveness of the HPV vaccine and recommend that parents get the HPV vaccine for their child to prevent cancers; and (3) Closing message - The sentence "HPV vaccine is cancer prevention. Talk to your child's healthcare provider about getting the HPV vaccine during the next clinic visit" will appear on the screen.
Eligibility Criteria
You may qualify if:
- Parent/guardian of a 9-12 year old receiving primary care at a Penn State Health clinic
- Their child has not previously received or initiated the HPV vaccine
- Is able to read and understand spoken English or Spanish
- Has a valid email address and access to a mobile phone, table, desktop or laptop computer to engage in the intervention
You may not qualify if:
- Parent of guardian is less than 18 years of age
- Unable to read and understand spoken English or Spanish
- Does not have access to a mobile phone, table, desktop or laptop computer
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Penn State Health
Hershey, Pennsylvania, 17033, United States
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, CARE PROVIDER
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor of Public Health Sciences
Study Record Dates
First Submitted
January 29, 2025
First Posted
February 5, 2025
Study Start
November 18, 2025
Primary Completion (Estimated)
October 30, 2026
Study Completion (Estimated)
March 31, 2027
Last Updated
February 24, 2026
Record last verified: 2026-02