Can the right words boost HPV vaccination? new study tests message strategies
NCT ID NCT06784960
First seen Jun 26, 2026 · Last updated Sep 10, 2026 · Updated 3 times
Summary
This completed study tested different messages to see which ones make adults more willing to get the HPV vaccine, which prevents certain cancers. Over 5,300 adults aged 18-45 were randomly assigned to read one of five theory-based messages or a control message. The goal was to find the most effective communication strategies to increase vaccination intentions.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this research could point toward more effective ways to talk about the HPV vaccine, helping more adults choose to get vaccinated.
- What could go wrong
- This is a survey experiment, not a real-world vaccination campaign. People's stated intentions may not match actual behavior, and the messages may not work in all communities.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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9,002 people
The number who actually took part.
- Started
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Feb 2025
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 45 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 18-45 years old Exclusion Criteria: * Under 18 and over 45 years old * Received HPV vaccine or unsure about receipt
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Pennsylvania
Philadelphia, Pennsylvania, 19104, United States
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Other studies related to the condition(s) this trial covers.
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