Text Message Reminder-Recalls For Early Childhood Vaccination

This study has been completed.
Information provided by (Responsible Party):
Melissa Stockwell, MD, MPH, Columbia University
ClinicalTrials.gov Identifier:
First received: September 9, 2010
Last updated: July 24, 2014
Last verified: July 2014
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.

Condition Intervention
Other: Text message

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Health Services Research
Official Title: Text 4 Health-Kids: Text Message Reminder-Recalls For Early Childhood Vaccination

Further study details as provided by Columbia University:

Primary Outcome Measures:
  • Receipt of MMR1 [ Time Frame: by 13 and 16 months of age ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Timeliness of HepA vaccination post-recall [ Time Frame: 4,12, 24 weeks ] [ Designated as safety issue: No ]
  • Attendance at appointments [ Time Frame: after appointment ] [ Designated as safety issue: No ]

Enrollment: 2586
Study Start Date: June 2011
Study Completion Date: July 2013
Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Text message reminders Other: Text message
text message appointment and immunization reminders
Active Comparator: standard of care for MMR, letter reminder for Hep A
MMR: automated phone call appointment reminder Hep A: recall letter, automated phone call appointment reminder
Other: Text message
text message appointment and immunization reminders


Ages Eligible for Study:   9 Months to 50 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Parents of child >9 months to 25 months
  • Child with at least one visit to one of the participating clinical sites in the previous 12 months
  • Parental cell phone number recorded in the registration system
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT01199666

United States, New York
Columbia University Medical Center
New York, New York, United States, 10032
Sponsors and Collaborators
Columbia University
Principal Investigator: Melissa S Stockwell, MD MPH Columbia University
Study Director: Annika Hofstetter, MD PhD MPH Columbia University
  More Information

Responsible Party: Melissa Stockwell, MD, MPH, Asst Prof of Pediatrics and Population and Family Health, Columbia University
ClinicalTrials.gov Identifier: NCT01199666     History of Changes
Other Study ID Numbers: AAAF4263 
Study First Received: September 9, 2010
Last Updated: July 24, 2014
Health Authority: United States: Institutional Review Board

Keywords provided by Columbia University:
Underimmunization, text message, vaccination

Additional relevant MeSH terms:
Immunologic Factors
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on May 25, 2016