SMS Mobile Technology for Vaccine Coverage and Acceptance (Vaxtech)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01663636
Recruitment Status : Withdrawn (not human subjects research, no subjects enrolled)
First Posted : August 13, 2012
Last Update Posted : July 28, 2015
Information provided by (Responsible Party):
University of Colorado, Denver

Brief Summary:
To pilot test a mobile phone SMS system that will provide periodical messaging texts to mothers or custodians of infants who come for their first dose vaccines within the first 3 months of life to improve timely immunization coverage, vaccine acceptance and ensure vaccine safety monitoring. The intervention will include a "cloud-based" information system alimented by mobile phone data entry at the health post nurse level, that links child vaccination status and is able to remind parents and nurses of the need for next vaccination appointment and provide a system for reporting of adverse events following immunization in the immediate post-vaccination period.

Condition or disease
Adverse Event Following Immunization

  Show Detailed Description

Study Type : Observational
Actual Enrollment : 0 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: SMS Mobile Technology for Vaccine Coverage and Acceptance in Guatemalan Infants
Study Start Date : September 2012
Actual Primary Completion Date : June 2015
Actual Study Completion Date : June 2015

SMS Vaccine
Mothers will be sent an SMS message reminding them to come for their scheduled vaccines 1 week prior to the date of 2nd and 3rd doses
Mothers will serve as a control, and will be sent a message to remind them to continue breastfeeding

Primary Outcome Measures :
  1. Number of days unvaccinated [ Time Frame: 9 months of age ]
    Number of days that a child is not vaccinated with the recommended dose of vaccines according to the age schedule of the National Immunization Program in Guatemala

Secondary Outcome Measures :
  1. AEFI reports [ Time Frame: 9 months ]
    Number of perceived serious adverse events following immunization (AEFI) in infants receiving their routine vaccines in the first 3 days after vaccination.

Information from the National Library of Medicine

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Ages Eligible for Study:   1 Month to 12 Months   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Infants under 12 months of age from Ministry of Health Clinics in Guatemala City

Inclusion Criteria:

  • Infants 1-3 months of age coming for their 1 dose of primary vaccines

Exclusion Criteria:

  • Received 1 dose of vaccines, excluding BCG
  • No mobile phone
  • Intent to move from the clinic area in the next 6 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01663636

University del Valle
Guatemala, Guatemala, 01001
Sponsors and Collaborators
University of Colorado, Denver
Principal Investigator: Edwin J Asturias, MD University of Colorado School of Medicine

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: University of Colorado, Denver Identifier: NCT01663636     History of Changes
Other Study ID Numbers: 12-1144
OPP1061430 ( Other Identifier )
First Posted: August 13, 2012    Key Record Dates
Last Update Posted: July 28, 2015
Last Verified: July 2015

Keywords provided by University of Colorado, Denver:
mobile phones

Additional relevant MeSH terms:
Immunologic Factors
Physiological Effects of Drugs