Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Not applicable Interventional

Text Message Reminder-Recalls For Early Childhood Vaccination

ClinicalTrials.gov ID: NCT01199666

Public ClinicalTrials.gov record NCT01199666. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 5, 2026, 4:17 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Text 4 Health-Kids: Text Message Reminder-Recalls For Early Childhood Vaccination

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Although the investigators have reached the Healthy People 2010 goal of 80% coverage among U.S. children 19-35 months of age for the primary immunization series, 20% of children still remain underimmunized. In addition, pockets of low immunization coverage and outbreaks of vaccine preventable disease persist. Immunization reminder-recalls have been shown to be successful, but have been limited by the ability to identify and reach large target populations in a real-time, automated fashion. Reminder-recalls via text message may offer an innovative opportunity to improve vaccination coverage. Currently, 91% of Americans own a cell phone. Prior research by our team suggests that text messages reminder recalls may be an effective tool to remind parents about their children's vaccines. In this study, the investigators will demonstrate the effectiveness of tailored text message appointment and immunization reminders linked to a well-established and functional immunization registry to increase coverage rates and timeliness of the sentinel vaccines of MMR and HepA. The investigators will target parents of young children from an underserved population that is primarily Latino, with low socioeconomic status.

Study identification

NCT ID
NCT01199666
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
Columbia University
Other
Enrollment
2,586 participants

Conditions and interventions

Conditions

Interventions

Other

Eligibility (public fields only)

Age range
9 Months to 50 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 31, 2011
Primary completion
Jun 30, 2013
Completion
Jun 30, 2013
Last update posted
Jul 24, 2014

2011 – 2013

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Columbia University Medical Center New York New York 10032

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01199666, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 24, 2014 · Synced Sep 5, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01199666 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →