Text or call? study tests best way to boost COVID shots in schools

NCT ID NCT05419232

Completed Prevention Sponsor: Washington University School of Medicine Source: ClinicalTrials.gov ↗

First seen Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This study compares two strategies to increase COVID-19 vaccination among unvaccinated students, school staff, and their household members. One group receives a text message with a website link about vaccination, while the other group gets a phone call from a peer. The goal is to see which approach leads to more people getting vaccinated within two weeks.

What this could mean

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

Active substance: Short Message Service (SMS) + Website Link Strategy or Phone Call with Peer Strategy
What this could lead to: If successful, this could identify the most effective way to encourage COVID-19 vaccination in school communities, helping public health efforts.
What could go wrong: The study is relatively small (262 participants) and relies on self-reported vaccination, which may not be fully accurate. Results may not apply to other regions or populations.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Vaccination Refusal COVID-19 prevention target

As listed by the trial registrant

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

COVID-19 VACCINATION REFUSAL

Contacts and locations

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Locations

Ferguson-Florissant School District

Hazelwood, Missouri, 63042, United States
Jennings School District

Jennings, Missouri, 63136, United States
Maplewood Richmond Heights School District

St Louis, Missouri, 63144, United States
Normandy Schools Collaborative

St Louis, Missouri, 63121, United States
Pattonville School District

Saint Ann, Missouri, 63074, United States
Ritenour School District

St Louis, Missouri, 63114, United States
St. Louis Language Immersion School

St Louis, Missouri, 63103, United States
University City School District

University City, Missouri, 63130, United States

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