Text reminders help get young kids vaccinated on time
NCT ID NCT04936776
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether sending text message reminders to parents could increase routine vaccination rates in children aged 0-2 years. Over 1,000 families in Brooklyn, New York, whose children were behind on vaccines received texts when shots were due or coming due. The goal was to help kids get back on schedule after COVID-19 lockdowns disrupted well-child visits.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- text messaging
- What this could lead to
- If successful, this simple texting approach could help more young children get their routine vaccines on time, reducing the risk of preventable diseases.
- What could go wrong
- This is a completed behavioral study, not a drug trial. The results may not apply to other communities or settings, and texting alone may not overcome all barriers to vaccination.
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.
- Participants
-
1,034 people
The number who actually took part.
- Started
-
Feb 2021
- Finished
-
Jan 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.
Who is studied
Children ages 0-2 years with delayed vaccinations (due for vaccine and due soon) in NYU Brooklyn Family Health Centers network.
- Ages
-
1 year to 2 years
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Children ages 0-2 years with delayed vaccinations (due for vaccine and due soon) in NYU Brooklyn Family Health Centers network. Exclusion Criteria: * Children above the age of 2 who do not attend NYU Brooklyn Family Health Centers network
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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
-
NYU Langone Health
New York, New York, 10016, United States
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Other studies related to the condition(s) this trial covers.
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