Vaccination Nudges From Pharmacists

Brief summary (registry, in English)

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

What you commit to

• Study type: Interventional
• Planned participants: 20000
• From 6 Nov 2025 to the primary completion date, 1 Sept 2026
• 1 site in 1 country
• Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Who the study is looking for

Age in the registry: 18 years to - · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

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