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Can a texted story boost flu shots for black kids?

NCT ID NCT06274359

Prevention Sponsor: Denver Health and Hospital Authority 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 Aug 28, 2026 · Last updated Aug 28, 2026

Summary

This trial tests whether sending caregivers text messages with digital stories can encourage them to vaccinate their young children against the flu. The study focuses on Black children aged 6 months to 5 years who receive care at Denver Health, a group that has faced long-standing flu vaccination disparities. Caregivers in the intervention group receive texted stories and messages designed to motivate vaccination, while the trial tracks how many children get the flu shot during the season. The goal is to see if this low-cost, culturally tailored approach can help close the vaccination gap.

What this could mean

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

Active substance
Digital storytelling via text messages
What this could lead to
If it works, this approach could reduce flu vaccination gaps and improve health equity for Black children.
What could go wrong
This is a pilot study, so the effect may be small or not last. Success depends on caregivers actually watching the stories.

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

398 people

The number who actually took part.

Started

Aug 2024

Finished

Mar 2025

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

18 to 90 years

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: * Caregivers of a child who is empaneled at Denver Health (e.g. had 1 well child visit in last 18 months) * Child will be aged 6 months to 5 years during the influenza season in which the trial will be conducted (season 1: 10/1/24-3/31/25; season 2 (if needed): 10/1/25-3/31/26) * Child has no medical contraindications to vaccination (e.g., severe allergy to one of the vaccine ingredients, history of Guillan-Barre Syndrome) Exclusion Criteria: \- Caregivers whose first language is not English

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Conditions

The condition(s) this trial relates to.

influenza prevention target

As listed by the trial registrant

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

Influenza

Contacts and locations

Locations

  • Denver Health Eastside Clinic

    Denver, Colorado, 80205, United States

  • Denver Health Park Hill Clinic

    Denver, Colorado, 80207, United States

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