Text message nudges aim to boost flu vaccination rates
NCT ID NCT07372950
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests different text message reminders to see which ones work best at getting people to get their flu vaccine. About 100,000 patients who haven't had their flu shot yet will receive a reminder text before a doctor's visit. The goal is to find simple, effective ways to increase flu vaccination and prevent illness.
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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About 100,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Sep 2026
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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6 months and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients 6 months and older who have not received a flu shot at the time of their primary care clinic appointment reminder will be eligible to receive a flu vaccine reminder text message. For children \<18 years of age, their caregiver will receive the text message Exclusion Criteria: * Patients not eligible for flu vaccine
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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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Institute for Health Research
Aurora, Colorado, 80011, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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