Texts or navigators: which gets more people vaccinated?
NCT ID NCT04939519
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested two practical methods to increase COVID-19 vaccination among over 65,000 patients at Utah community health centers. One group received text message reminders to get vaccinated, while another group got texts plus a personal navigator to help with logistics like scheduling and transportation. The goal was to see which approach led to more people getting the shot.
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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65,300 people
The number who actually took part.
- Started
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Mar 2021
- Finished
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Feb 2023
- 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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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: * current patient of a participating community health center * have a working cellphone, * have phone number listed in existing electronic medical record at their participating clinic * speak English or Spanish. Exclusion Criteria: * Minors
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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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Huntsman Cancer Institute/ University of Utah
Salt Lake City, Utah, 84112, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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