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NCT07161739
Vaccination Nudges From Pharmacists
NA trial testing Behavioural Nudge (Influenza Risk Reduction) in Stroke in 20,000 participants. Participants enrolled and being followed up; not accepting new ones.
1 September 2026
Quick facts
| Lead sponsor | University of Calgary |
|---|---|
| Phase | NA |
| Status | Active, enrolled |
| Study type | INTERVENTIONAL |
| Allocation | randomized |
| Design | parallel |
| Masking | triple |
| Primary purpose | prevention |
| Enrollment | 20,000 |
| Start date | 6 November 2025 |
| Primary completion | 1 September 2026 |
| Estimated completion | 1 December 2026 |
| Sites | 1 location across Canada |
Drugs / interventions tested
- Behavioural Nudge (Influenza Risk Reduction)
- Behavioural Nudge (Travel Vaccination Benefit)
Conditions studied
- Stroke — all drugs for Stroke →
- Influenza Human — all drugs for Influenza Human →
- Influenza Vaccines — all drugs for Influenza Vaccines →
- Health Behavior Change — all drugs for Health Behavior Change →
Sponsor
University of Calgary
Who can join
18 and older, any sex, with Stroke or Influenza Human. Patients with the condition only — healthy volunteers not accepted.
Sponsor's own description
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
Publications & conference data
No peer-reviewed publications indexed yet for this trial.
Verify or expand the search:
- PubMed search for NCT07161739
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT07161739 (US National Library of Medicine, public domain)
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University of Calgary
- Last refreshed: 10 February 2026
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT07161739.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing