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AI chatbot takes on vaccine myths in UK trial

NCT ID NCT07488962

Knowledge-focused Sponsor: London School of Hygiene and Tropical Medicine Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a conversational AI chatbot can help parents and caregivers in the UK better identify false information about childhood vaccines. Around 1000 participants will be randomly assigned to either interact with the chatbot or view a standard social media infographic. The goal is to see which approach improves parents' ability to tell true from false vaccine claims.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
AI-driven chatbot
What this could lead to
If it works, this could point toward a scalable tool to help parents resist vaccine misinformation and make informed decisions.
What could go wrong
This is a small, early-stage study (1000 people) measuring short-term responses, not real-world vaccination behavior. Results may not generalize beyond the UK or this specific chatbot design.

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

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

About 1,000 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Mar 2026

An estimate. Start dates often move.

Expected to finish

Mar 2026

An estimate. End dates often move.

Lead sponsor

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

20 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Parents or primary caregivers of at least one child under 18 years of age in the UK who is able to answer questions about their child's vaccination status; * Those who have basic literacy in English; * Those who have regular access to a digital device and the internet; and * Those who provide informed consent and agree to participate in the trial Exclusion Criteria: * Those who have a visual/reading disability that could prevent their participation in or completion of the study activities

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Healthy

How to take part

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  1. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  2. A doctor treating you

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