Conversational AI for Adult Flu Vaccination Decisions
Public ClinicalTrials.gov record NCT07896850. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Conversational AI for Adult Flu Vaccination Decisions: An Active-Control Randomized Trial
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This randomized trial tests whether an online guide combining short evidence cards with an AI-guided conversation increases flu-vaccination intention among US adults who haven't decided whether to get a flu vaccine this season. Participants recruited through Prolific are randomly assigned to the flu guide or to a structure-matched guide about everyday accident safety. The primary outcome is self-rated likelihood of getting a flu vaccine this season (1-7), asked immediately after the session. Participants are asked at about 2 and 8 weeks whether they have been vaccinated. The study is powered for the intention outcome but not for vaccination. For vaccination, it estimates the effect, the base rate, and follow-up response, to size a later, larger trial.
Study identification
- NCT ID
- NCT07896850
- Recruitment status
- Not yet recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 220 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Oct 2026 (Estimated)
- Primary completion
- Oct 30, 2026 (Estimated)
- Completion
- Dec 31, 2026 (Estimated)
- Last update posted
- Oct 27, 2026
2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Calypta Systems, Inc. | San Francisco | California | 94114 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07896850, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 27, 2026 · Synced Oct 29, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07896850 live on ClinicalTrials.gov.