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NCT03332992 · ClinicalTrials.gov registry record · NA
Comparative Tests of Flu Vaccination Phone Messages
A NA study, sponsored by University of Michigan.
- Completed
- Registry status
- NA
- Development phase
- 7,206
- Enrollment target
NCT03332992: Completed NA study, sponsored by University of Michigan.
NCT03332992 is a NA study that has completed, run by University of Michigan. The registered enrollment target is 7,206 participants, above the 1,403-participant average among 58,714 other NA trials with a reported enrollment target (414% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03332992, a NA study, has completed, sponsored by University of Michigan.
- COMPLETED
- Registry status
- NA
- Development phase
- 7,206 participants
- Enrollment target
Study Summary
This project is a partnership between Emmi Solutions, a private company that delivers health promotion messages to employees of client organizations, and the University of Michigan and affiliated academic investigators. In particular, Emmi sends out pre-recorded and interactive telephone calls on behalf of their healthcare clients to promote influenza vaccination each Fall. The collaboration will design various scripts (based on established risk communication, behavior change, and behavioral economic principles) to be pre-recorded and sent out on these calls on a randomized basis (with approval by client organizations), with the number of arms to vary based on the size of each client's participant list (to ensure sufficient statistical power within each client's sample). Emmi will deliver the calls and track individual responses to questions posed during the call. Emmi will then provide a de-identified dataset to the academic research team for analysis to determine whether any scripts provided greater or lesser effects to people's their motivations to get a flu vaccination.
Primary Outcome
Question (language being manipulated) asking whether respondent intends to vaccinate
Interventions
- BEHAVIORAL Viral changes
- BEHAVIORAL Protect others
- BEHAVIORAL General intentions
- BEHAVIORAL Behavioral intentions
- BEHAVIORAL Accountability
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 7,206 participants |
| Start Date | 2017-11-11 |
| Est. Completion | 2018-04-30 |
| Phase | NA |
What the finished NCT03332992 record still lists
NCT03332992 is an interventional study that assigns participants to a tested intervention. Its 7,206 participants enrollment target places it among the larger protocols in the corpus, above the 1,403-participant average among 58,714 other NA trials with a reported enrollment target (414% higher).
The record links to 0 conditions, and to 5 interventions - of which Viral changes is the first listed.
NCT03332992 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03332992 about?
NCT03332992 is a clinical study titled "Comparative Tests of Flu Vaccination Phone Messages". This project is a partnership between Emmi Solutions, a private company that delivers health promotion messages to employees of client organizations, and the University of Michigan and affiliated academic investigators. In particular, Emmi sends out pre-recorded and interactive telephone calls on be...
What is the current status of trial NCT03332992?
This trial is currently completed. It is a NA study. The enrollment target is 7,206 participants. The study started on 2017-11-11. Estimated completion is 2018-04-30.
What interventions are being tested in trial NCT03332992?
The interventions under investigation include: Viral changes (BEHAVIORAL), Protect others (BEHAVIORAL), General intentions (BEHAVIORAL), Behavioral intentions (BEHAVIORAL), Accountability (BEHAVIORAL).
Who is sponsoring clinical trial NCT03332992?
This trial is sponsored by University of Michigan, which has 1,327 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03332992's enrollment target sits among peer trials
7,206 20th of 2000 higher than 1,981 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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