NCT03246100

Brief Summary

This study is the second trial related to ClinicalTrials.gov ID: NCT02761551. There are slight changes to methods and a different cohort will be used, thus justifying a 2nd ClinicalTrials.gov submission. This trial is taking place in New York State (not NYC) and in Colorado. Each state has it's own ClinicalTrials.gov submission. 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 (R/R) 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: 1) autodialer reminder/recall versus 2) postcard reminder/recall versus 3) usual care (no R/R) on improving influenza vaccination rates. The investigators will disseminate the state immunization information system based reminder/recall system to all states for use for both seasonal and pandemic influenza vaccinations with the goal of lowering influenza morbidity.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25,531

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Sep 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 7, 2017

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 11, 2017

Completed
26 days until next milestone

Study Start

First participant enrolled

September 6, 2017

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2019

Completed
Last Updated

June 24, 2019

Status Verified

June 1, 2019

Enrollment Period

1.6 years

First QC Date

August 7, 2017

Last Update Submit

June 20, 2019

Conditions

Keywords

centralized reminder/recallinfluenza vaccine reminderschildhood influenza vaccines

Outcome Measures

Primary Outcomes (1)

  • Receipt of at least 1 influenza vaccine according to immunization records in the Immunization Information System (IIS) records in each state

    Based on our prior studies, we currently plan to send up to 3 autodialer or postcards (based on randomization arm) reminders, spaced every 5 weeks, beginning in early October, and ending mid-December 2017. Outcomes are assessed at 6 months using IIS data.

    6 months

Study Arms (3)

Control

NO INTERVENTION

These patients will receive no reminders from the health department and will receive usual care.

Autodialer R/R

EXPERIMENTAL

Autodialer calls (up to 3 reminders)- with brief education message + practice name + practice phone #

Behavioral: Reminders

Mail R/R

EXPERIMENTAL

Mailed reminder (up to 3 reminders)-- with brief education message + practice name + practice phone #

Behavioral: Reminders

Interventions

RemindersBEHAVIORAL

Reminders are sent either through autodial or postcards reminding patients to get flu vaccine.

Autodialer R/RMail R/R

Eligibility Criteria

Age6 Months - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • have record in Colorado Immunization Information System
  • from 6 months through 17 years of age
  • have not received an influenza vaccine by start of trial
  • must be affiliated with one of our 42 randomly selected primary care practices in Colorado

You may not qualify if:

  • those without a record
  • received an influenza vaccine post 9/1/2017
  • not affiliated with an eligible study

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Colorado

Aurora, Colorado, 80045, United States

Location

Related Publications (1)

  • Szilagyi PG, Albertin CS, Saville AW, Valderrama R, Breck A, Helmkamp L, Zhou X, Vangala S, Dickinson LM, Tseng CH, Campbell JD, Whittington MD, Roth H, Rand CM, Humiston SG, Hoefer D, Kempe A. Effect of State Immunization Information System Based Reminder/Recall for Influenza Vaccinations: A Randomized Trial of Autodialer, Text, and Mailed Messages. J Pediatr. 2020 Jun;221:123-131.e4. doi: 10.1016/j.jpeds.2020.02.020.

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Study Officials

  • Allison Kempe, MD, MPH

    University of Colorado, Denver

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Patients will be randomized within practices to one of 3 arms: 1. Standard of care control 2. Autodialer (3 reminders)- with brief education message + practice name + practice phone # (see autodialer scripts) 3. Mailed reminder (3 reminders)-- with brief education message + practice name + practice phone # (see postcards)
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 7, 2017

First Posted

August 11, 2017

Study Start

September 6, 2017

Primary Completion

April 30, 2019

Study Completion

April 30, 2019

Last Updated

June 24, 2019

Record last verified: 2019-06

Data Sharing

IPD Sharing
Will not share

Aggregate results will be prepared for publications at the end of the trial.

Locations