COVID-19 VaccinationNCT04979416
Video Messages and Vaccination Intention
A study testing Video messages in people with COVID-19 Vaccination, run by University of Southern California at 1 site in United States.
Trial summary
This study uses an online panel survey to test the impact of video messages on stated likelihood of COVID-19 vaccination. Participants, who have self-identified as unvaccinated against COVID-19, are randomly assigned to either no video message or 1 of 3 video messages to encourage vaccine take-up. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- COVID-19 Vaccination
- What is being tested?
- Video messages
- Type of treatment
- Vaccines, Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,001 participants
- Where
- 1 siteUnited States
- Study dates
- 21 Jul 2021to 22 Jul 2021
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- adults in the Prolific.co panel
- unvaccinated against COVID-19
Who cannot join
- indicated to Prolific.co that they have received a COVID-19 vaccination
Trial locations and contacts
1 site in 1 country.
About this study
Official title: The Impact of Video Messaging on Vaccination Intention
This study uses an online panel survey to test the impact of video messages on stated likelihood of COVID-19 vaccination. Participants, who have self-identified as unvaccinated against COVID-19, are randomly assigned to either no video message or 1 of 3 video messages to encourage vaccine take-up. The key endpoint is a question about the likelihood of getting vaccinated in the next 30 days.
Read the detailed description
This study uses an online panel survey to test the impact of video messages on stated likelihood of COVID-19 vaccination. Participants are recruited from the Prolific.co platform. Those who have indicated to Prolific that they have not been vaccinated will be randomly assigned to either no video message or 1 of 3 video messages created by the Vaccinate LA/USC collaborative. The key endpoint is a question about the likelihood of getting vaccinated in the next 30 days.
- Conditions
- COVID-19 Vaccination
- Being tested
- Video messages
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Video messagesBehavioural
video messages aimed at increasing vaccination
| Study group | Role | What they receive |
|---|---|---|
| Control | No intervention | No video message |
| Video message 1 | Experimental | Not described Receives: Behavioral: Video messages |
| Video message 2 | Experimental | Not described Receives: Behavioral: Video messages |
| Video message 3 | Experimental | Not described Receives: Behavioral: Video messages |
What is being measured
The primary outcome is the main question the study is designed to answer.
Vaccination intention
Probability of getting vaccinated in the next 30 days
Measured: 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Jul 2021
- Study start21 Jul 2021
- Primary completion22 Jul 2021
- Study completion22 Jul 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for COVID-19 VaccinationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 1,001 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Southern California
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Mireille Jacobson, University of Southern California
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04979416
- Sponsor's protocol ID
- UP-21-00587
- Status last verified
- Dec 2021
- First submitted
- 14 Jul 2021
- Last updated
- 10 Dec 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Deidentified data will be shared after/concurrent with publication.
Study at a glance
From the registry record, last updated by the sponsor on 10 Dec 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Impact of Video Messaging on Vaccination Intention
- ClinicalTrials.gov ID
- NCT04979416
- Acronym / sponsor ID
- UP-21-00587
- Conditions
- COVID-19 Vaccination
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,001 participants (actual)
- Lead sponsor
- University of Southern CaliforniaUniversity, hospital or other
- Study start
- 21 Jul 2021 (actual)
- Primary completion
- 22 Jul 2021 (actual)
- Study completion
- 22 Jul 2021 (actual)
- First posted
- 28 Jul 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study uses an online panel survey to test the impact of video messages on stated likelihood of COVID-19 vaccination. Participants, who have self-identified as unvaccinated against COVID-19, are randomly assigned to either no video message or 1 of 3 video messages to encourage vaccine take-up. The key endpoint is a question about the likelihood of getting vaccinated in the next 30 days.
Detailed description
This study uses an online panel survey to test the impact of video messages on stated likelihood of COVID-19 vaccination. Participants are recruited from the Prolific.co platform. Those who have indicated to Prolific that they have not been vaccinated will be randomly assigned to either no video message or 1 of 3 video messages created by the Vaccinate LA/USC collaborative. The key endpoint is a question about the likelihood of getting vaccinated in the next 30 days.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Control | No intervention | –No video message |
| Video message 1 | Experimental | Behavioral: Video messages |
| Video message 2 | Experimental | Behavioral: Video messages |
| Video message 3 | Experimental | Behavioral: Video messages |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- adults in the Prolific.co panel
- unvaccinated against COVID-19
Key exclusion criteria (1 listed)
- indicated to Prolific.co that they have received a COVID-19 vaccination
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Video messagesvideo messages aimed at increasing vaccination | Behavioural | Video message 1, Video message 2, Video message 3 |
Primary outcome
Vaccination intention
Time frame: 30 days
Probability of getting vaccinated in the next 30 days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Dec 2021.
- Individual participant dataSharing planned: Yes. Deidentified data will be shared after/concurrent with publication.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Video messages in people with COVID-19 Vaccination, run by University of Southern California at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 10 Dec 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Vaccination intention (time frame: 30 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 10 Dec 2021.