NCT01732315|Completed
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Sponsor study identifier
interventional
3,783
1 country
1
Study Start
October 2012
Date type not reportedThis date has not been verified as actual or estimated.
Primary Completion
December 2014
Actual (reported)Study Completion
December 2014
Actual (reported)This protocol describes a study about vaccination uptake among adolescents. The purpose of the study is to determine whether parents who receive email reminders will be more likely to obtain Tdap (tetanus-diphtheria-acellular pertussis), HPV (human papilloma virus), meningococcal, and influenza vaccines for their adolescent children than parents who do not receive email reminders.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
December 2014
Actual (reported)Click on a node to explore related trials.
Some registry-reported names shown below are not yet linked in this graph.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
October 2012
Date type not reportedThis date has not been verified as actual or estimated.
October 24, 2012
Actual (reported)November 22, 2012
Actual (reported)December 2014
Actual (reported)December 2014
Actual (reported)New immunization doses
To examine the effect of email vaccination reminders, new immunization doses of children of parents who receive email vaccination reminders, versus those who do not receive email reminders during the study period will be determined. New doses are those for any of four adolescent vaccines which are administered following the reminder notification, and are subsequently recorded following reminder notifications.
New immunizations within 60 days of reminder notification
Waived immunization doses
Waived immunizations within 60 days of reminder notification
Historical immunization doses
Historical immunizations within 60 days of reminder notification
This group of parents in the study will receive email notifications about due/overdue vaccines for their adolescents. Vaccination records will be reviewed to identify adolescent patients in both practices who are newly eligible for a vaccine and/or overdue for a vaccine at the start of every other month. Email notifications will then be sent to the parents of these children.
This group of parents in the study will not receive email notifications about due/overdue vaccines for their adolescents.
This study will use a targeted email reminder/recall intervention that addresses specific aspects of adolescent under-immunization.
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
University of Michigan
Ann Arbor, Michigan, 48109, United States
Dombkowski KJ, Cowan AE, Reeves SL, Foley MR, Dempsey AF. The impacts of email reminder/recall on adolescent influenza vaccination. Vaccine. 2017 May 25;35(23):3089-3095. doi: 10.1016/j.vaccine.2017.04.033. Epub 2017 Apr 25.
Kevin Dombkowski, DrPH
University of Michigan
Amanda Dempsey, MD, PhD, MPH
University of Colorado, Denver
3,783 participants (actual enrollment reported by the registry).
First Submitted
October 24, 2012
First Posted
November 22, 2012
Study Start
October 2012
Date type not reportedThis date has not been verified as actual or estimated.
Contact the study team to confirm eligibility.
Primary Completion
December 2014
Actual (reported)Study Completion
December 2014
Actual (reported)Last Updated
August 17, 2015
Record last verified: 2015-08
Download the complete ClinicalTrials.gov record imported by Syfrah, including fields not shown in this page. The registry may contain a newer revision.
Source: ClinicalTrials.gov.
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