NCT02924467|Completed
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Sponsor study identifier
Secondary identifiers
NIH
interventional
100,000
0 countries
N/A
Study Start
November 1, 2016
Actual (reported)Primary Completion
May 2, 2017
Actual (reported)Study Completion
May 2, 2017
Actual (reported)Despite U.S. guidelines for influenza vaccination of all children starting at age 6 months, only about half of children are vaccinated annually, leading to substantial influenza disease in children and spread of disease to adults. A major barrier is that families are not reminded about the need for their children to receive influenza vaccination. The investigators will evaluate the impact of patient reminder/recall performed by state immunization information systems to improve influenza vaccination rates by using three clinical trials in two states. The investigators will assess effectiveness and cost-effectiveness of phone reminder/recall on improving influenza vaccination rates. The investigators will disseminate the state immunization information system-based reminder/recall system to all states for use for seasonal and pandemic influenza vaccinations with the goal of lowering influenza morbidity.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
May 2, 2017
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.
September 23, 2016
Actual (reported)October 5, 2016
Actual (reported)November 1, 2016
Actual (reported)May 2, 2017
Actual (reported)May 2, 2017
Actual (reported)Number of subjects receiving influenza vaccine
The primary outcome is receipt of influenza vaccine by children receiving zero notices compared to those receiving 1,2, or 3 notices.
6 months
Number of subjects receiving influenza vaccine based on demographic subgroups
6 months
Number of subjects <9 years of age that will receive an additional vaccine
1 month
Patients in this group will not receive any influenza vaccine reminder notifications.
Patients in this group will receive one influenza vaccine reminder notification via autodialer across the 2016 influenza season.
Patients in this group will receive up to two influenza vaccine reminder notifications via autodialer throughout the 2016 influenza season.
1 Reminder notification via autodialer
2 Reminder notifications via autodialer
Kempe A, Saville A, Dickinson LM, Eisert S, Reynolds J, Herrero D, Beaty B, Albright K, Dibert E, Koehler V, Lockhart S, Calonge N. Population-based versus practice-based recall for childhood immunizations: a randomized controlled comparative effectiveness trial. Am J Public Health. 2013 Jun;103(6):1116-23. doi: 10.2105/AJPH.2012.301035. Epub 2012 Dec 13.
Kempe A, Saville AW, Dickinson LM, Beaty B, Eisert S, Gurfinkel D, Brewer S, Shull H, Herrero D, Herlihy R. Collaborative centralized reminder/recall notification to increase immunization rates among young children: a comparative effectiveness trial. JAMA Pediatr. 2015 Apr;169(4):365-73. doi: 10.1001/jamapediatrics.2014.3670.
Allison Kempe, MD, MPH
University of Colorado, Denver
First Submitted
September 23, 2016
First Posted
October 5, 2016
Study Start
November 1, 2016
Actual (reported)Primary Completion
May 2, 2017
Actual (reported)Patients in this group will receive up to three influenza vaccine reminder notifications via autodialer throughout the 2016 influenza season.
3 Reminder notifications via autodialer
Registry-reported names are shown in full. Names without a link have not yet been matched to a Syfrah profile.
Contact the study team to confirm eligibility.
Kempe A, Saville AW, Albertin C, Helmkamp L, Zhou X, Vangela S, Dickinson LM, Tseng CH, Campbell JD, Whittington M, Gurfinkel D, Roth H, Hoefer D, Szilagyi P. Centralized Reminder/Recall to Increase Influenza Vaccination Rates: A Two-State Pragmatic Randomized Trial. Acad Pediatr. 2020 Apr;20(3):374-383. doi: 10.1016/j.acap.2019.10.015. Epub 2019 Nov 5.
Study Completion
May 2, 2017
Actual (reported)Last Updated
April 28, 2020
Record last verified: 2020-04
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Source: ClinicalTrials.gov.
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