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ACTIVE NOT RECRUITING
NCT07161739
NA

Vaccination Nudges From Pharmacists

Sponsor: University of Calgary

View on ClinicalTrials.gov

Summary

The goal of this individual-level pragmatic randomized policy trial is to learn about the impact of behavioural nudges via mailed letters on increasing influenza and travel vaccination uptake in Alberta, Canada. The primary outcome is the proportion of adults receiving influenza and/or travel vaccination. The secondary outcome is the number of stroke events in the 6 months following vaccination. As such, this research aims to answer two key questions: 1. Do behavioural nudges increase influenza and travel vaccination in Alberta? 2. If yes, is there a decrease in the number of stroke events in the 6 months following vaccination? The two-arm individual level pragmatic randomized trial design includes two letter dimensions, a letter (a "nudge") with an influenza and cardiovascular risk reduction message and a letter with a travel vaccination benefit message, yielding the following groups: Letter with an influenza and cardiovascular risk reduction message Letter with a travel vaccination benefit message

Official title: Vaccination Nudges Project: Behavioural Nudges From Pharmacists to Increase Influenza and Travel Vaccination Uptake: A Pragmatic Randomized Control Trial.

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

20000

Start Date

2025-11-06

Completion Date

2026-12-01

Last Updated

2026-02-10

Healthy Volunteers

Yes

Interventions

BEHAVIORAL

Behavioural Nudge (Influenza Risk Reduction)

A behavioural nudge via mailed letter that discusses the benefits of the influenza vaccine in preventing influenza infection and reducing cardiovascular risk.

BEHAVIORAL

Behavioural Nudge (Travel Vaccination Benefit)

A behavioural nudge via mailed letter that discusses the benefits of travel vaccines in preventing travel-related illnesses.

Locations (1)

University of Calgary

Calgary, Alberta, Canada