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Texting parents boosts flu shots for kids, study finds

NCT ID NCT06587984

Prevention Sponsor: Children's Hospital of Philadelphia Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested whether sending a one-time text reminder to parents could increase flu vaccination rates among children. Over 228,000 patients aged 6 months to 18 years at Children's Hospital of Philadelphia were included. Researchers compared vaccination rates 30 days after the text to see if the reminder made a difference.

What this could mean

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

Active substance
text message reminder
What this could lead to
If effective, simple text reminders could become a low-cost way to increase flu vaccination rates in children.
What could go wrong
This is a completed quality improvement study, not a clinical trial of a new vaccine. Results may not apply to other populations or settings.

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

228,361 people

The number who actually took part.

Started

Sep 2024

Finished

Dec 2024

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

6 months to 18 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: * All patients between ages 6 months-18 years old who have an upcoming well visit during the Fall of 2024 (September through December 2024) or had a completed well visit from January 2023 through August 2024 * Patients have a mobile phone number within their medical record * Patients have opted-in to text communications from CHOP * English-speaking Exclusion Criteria: * Subjects who do not meet the above inclusion criteria will be excluded

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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

  • The Children's Hospital of Philadelphia

    Philadelphia, Pennsylvania, 19146, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.