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NCT05182554 · ClinicalTrials.gov registry record · NA
COVID-19 Messaging for Vaccination
A NA study, sponsored by Massachusetts Institute of Technology.
- Completed
- Registry status
- NA
- Development phase
- 6
- Enrollment target
NCT05182554: Completed NA study, sponsored by Massachusetts Institute of Technology.
NCT05182554 is a NA study that has completed, run by Massachusetts Institute of Technology. The registered enrollment target is 6 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT05182554, a NA study, has completed, sponsored by Massachusetts Institute of Technology.
- COMPLETED
- Registry status
- NA
- Development phase
- 6 participants
- Enrollment target
Study Summary
This study will distribute videos of health professionals encouraging Covid-19 vaccination to a large sample of Facebook users, and will test the most effective ways to maximize diffusion of this vaccine-related content to increase vaccination rates. The study sample will be U.S. states where vaccination rates remained low in fall 2021. The experimental design is an RCT with 4 groups, randomized at the county level: 1) a control group which receives no intervention, 2) a treatment group in which Facebook users receive ads which include videos of health professionals telling them to get vaccinated, 3) a treatment group in which Facebook users receive ads which include videos of health professionals encouraging them to help their friends to get vaccinated, and 4) a treatment group in which Facebook users receive ads which include videos of health professionals encouraging them to get their most influential friends to help their friends get vaccinated. In treatments 3 and 4, participants will have the option to sign up to be a "vaccine ambassador," in which case they will get notifications when the study team posts new vaccine-related content, and will receive reminders about encouraging their friends to be vaccinated. The vaccine ambassadors will also be entered into a lottery to win prizes. The study team is building a website to host the videos of health professionals which answer common questions about Covid-19 vaccination. The investigators will measure engagement with the vaccine-related content as well as assess effects on vaccination rates at the county level.
Primary Outcome
County-level Covid-19 vaccination rates were analysed using publicly available data. The number of new vaccinations in each county was transformed using the inverse hyperbolic sine because the underlying vaccination count data were right-skewed and included zeros. Larger numbers are considered better in the context of the study (more people vaccinated).
Interventions
- BEHAVIORAL Doctor Videos
- BEHAVIORAL Sharing Videos
- BEHAVIORAL Sharing Videos (Influencers)
- BEHAVIORAL Vaccine Ambassador
- BEHAVIORAL Video framing
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 6 participants |
| Start Date | 2021-12-22 |
| Est. Completion | 2022-01-27 |
| Phase | NA |
What the finished NCT05182554 record still lists
NCT05182554 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 6 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower).
The record links to 0 conditions, and to 5 interventions - of which Doctor Videos is the first listed.
NCT05182554 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT05182554 about?
NCT05182554 is a clinical study titled "COVID-19 Messaging for Vaccination". This study will distribute videos of health professionals encouraging Covid-19 vaccination to a large sample of Facebook users, and will test the most effective ways to maximize diffusion of this vaccine-related content to increase vaccination rates. The study sample will be U.S. states where vaccin...
What is the current status of trial NCT05182554?
This trial is currently completed. It is a NA study. The enrollment target is 6 participants. The study started on 2021-12-22. Estimated completion is 2022-01-27.
What interventions are being tested in trial NCT05182554?
The interventions under investigation include: Doctor Videos (BEHAVIORAL), Sharing Videos (BEHAVIORAL), Sharing Videos (Influencers) (BEHAVIORAL), Vaccine Ambassador (BEHAVIORAL), Video framing (BEHAVIORAL).
Who is sponsoring clinical trial NCT05182554?
This trial is sponsored by Massachusetts Institute of Technology, which has 24 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT05182554's enrollment target sits among peer trials
6 1983rd of 2000 higher than 13 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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