Trust Clinical Trial
Official title:
Novelty, Conformity and Trust in Vaccines
Verified date | February 2022 |
Source | National University, Singapore |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Despite their established benefits as public measures, vaccines continue to be treated with suspicion by many people, in the US and other parts of the world (Larson et al. 2014; Olive et al. 2018; Lazarus et al. 2020). Since the success of vaccines depends on their high uptake level (Anderson and May, 1985; Fine et al. 2011; Fontanet and Cauchemez, 2020), identifying factors that influence low trust and decision-making in relation to vaccines is essential in order to combat diseases such as the novel Coronavirus (COVID-19). The investigators study factors that could potentially influence public's trust in COVID-19 vaccines through a large-scale online field experiment. The investigators conduct an online survey of 32,400 subjects in nine countries (USA, Brazil, Mexico, China, India, Indonesia, Russia, Germany, and UK). The investigators study how willingness to receive the COVID-19 vaccine is affected by (1) the "novelty" of the vaccine technology (conventional vs. RNA vaccines), and (2) the adoption rate of the new vaccine in the country. That is - the impact of controversial science and the force of conformity on the rates of adoption. The latter will also allow us to calculate the "tipping point" adoption rate for each country that will allow the country to achieve herd immunity from COVID-19. The investigators have four hypotheses, below. H1 (Conformity): People are more willing to receive a vaccine as the cumulative adoption rate in their community increases. H2 (Novelty): People are less willing to get a COVID-19 vaccine that uses the new RNA technology, compared to a conventional vaccine H3 (Interaction between H1 and H2): As the cumulative adoption rate in a community increases, the difference between people's willingness to adopt conventional rather than RNA vaccines decreases. H4 (Tipping Point): Each country will have a different "tipping point". This is the cumulative adoption rate after which unvaccinated people are significantly more willing to get the vaccine. Countries that have a higher "honesty index" will have the tipping point appear at a lower cumulative adoption rate. Please note that this study is not a clinical trial. This study is a randomized controlled trial in the form of an online survey.
Status | Completed |
Enrollment | 35180 |
Est. completion date | March 30, 2021 |
Est. primary completion date | March 30, 2021 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Healthy adults over 18 years old Exclusion Criteria: - None |
Country | Name | City | State |
---|---|---|---|
United States | SurveyMonkey | San Mateo | California |
Lead Sponsor | Collaborator |
---|---|
National University, Singapore |
United States,
Anderson RM, May RM. Vaccination and herd immunity to infectious diseases. Nature. 1985 Nov 28-Dec 4;318(6044):323-9. Review. — View Citation
Fine P, Eames K, Heymann DL. "Herd immunity": a rough guide. Clin Infect Dis. 2011 Apr 1;52(7):911-6. doi: 10.1093/cid/cir007. Review. — View Citation
Fontanet A, Cauchemez S. COVID-19 herd immunity: where are we? Nat Rev Immunol. 2020 Oct;20(10):583-584. doi: 10.1038/s41577-020-00451-5. — View Citation
Larson HJ, Jarrett C, Eckersberger E, Smith DM, Paterson P. Understanding vaccine hesitancy around vaccines and vaccination from a global perspective: a systematic review of published literature, 2007-2012. Vaccine. 2014 Apr 17;32(19):2150-9. doi: 10.1016/j.vaccine.2014.01.081. Epub 2014 Mar 2. Review. — View Citation
Lazarus JV, Ratzan SC, Palayew A, Gostin LO, Larson HJ, Rabin K, Kimball S, El-Mohandes A. A global survey of potential acceptance of a COVID-19 vaccine. Nat Med. 2021 Feb;27(2):225-228. doi: 10.1038/s41591-020-1124-9. Epub 2020 Oct 20. Erratum in: Nat Med. 2021 Jan 11;:. — View Citation
Olive JK, Hotez PJ, Damania A, Nolan MS. The state of the antivaccine movement in the United States: A focused examination of nonmedical exemptions in states and counties. PLoS Med. 2018 Jun 12;15(6):e1002578. doi: 10.1371/journal.pmed.1002578. eCollection 2018 Jun. Erratum in: PLoS Med. 2018 Jul 6;15(7):e1002616. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Willingness to receive COVID-19 vaccine | Subjects' response to the question: "If the conventional COVID-19 vaccine were provided to you for free, how likely are you to accept the vaccination?" on a Likert scale from 1 (very unlikely) to 5 (very likely). | During the 15-minute survey | |
Primary | Belief in how much COVID-19 vaccine should be subsidized by the government | Subjects' response to the question: "How much do you think the government should subsidize the conventional COVID-19 vaccine?" There are 5 answer options: 0%, 25%, 50%, 75%, 100%. | During the 15-minute survey | |
Secondary | Belief in importance of vaccinating children | Subjects' response to the question: "To what extent do you agree or disagree with the following statement: It is important for children to be vaccinated" on a Likert scale from 1 (strongly disagree) to 5 (strongly agree) | During the 15-minute survey | |
Secondary | Belief in safety of vaccines | Subjects' response to the question: "To what extent do you agree or disagree with the following statement: Vaccines are safe" on a Likert scale from 1 (strongly disagree) to 5 (strongly agree) | During the 15-minute survey | |
Secondary | Belief in effectiveness of vaccines | Subjects' response to the question: "To what extent do you agree or disagree with the following statement: Vaccines are effective" on a Likert scale from 1 (strongly disagree) to 5 (strongly agree) | During the 15-minute survey | |
Secondary | Dishonesty index | We ask each subject to report the outcome of a dice roll (which investigators do not observe), where the subject receives a higher pay for reporting a higher roll. We use the average reported dice roll in a group as a measure of the group's dishonesty. A higher number indicates higher degree of dishonesty. If everyone was honest, the average number should be 3.5. | During the 15-minute survey |
Status | Clinical Trial | Phase | |
---|---|---|---|
Completed |
NCT04595695 -
The Effect of Clear Masks in Improving Patient Relationships
|
N/A | |
Active, not recruiting |
NCT04588883 -
Strengthening Families Living With HIV in Kenya
|
N/A | |
Completed |
NCT04100577 -
Today Not Tomorrow Pregnancy and Infant Support Program (TNT- PISP)
|
N/A | |
Completed |
NCT04152603 -
Better Research Interactions for Every Family
|
N/A | |
Completed |
NCT03063268 -
An Interactive Patient-Centered Consent for Research Using Medical Records
|
N/A | |
Not yet recruiting |
NCT06176092 -
UCF Deciding Brains
|
||
Completed |
NCT01244477 -
Neuroimaging the Impact of Treatment on Neural Substrates of Trust in Post-Traumatic Stress Disorder (PTSD)
|
N/A | |
Completed |
NCT02737254 -
Oxytocin and Attachment-related Interpretation Bias
|
Phase 4 | |
Completed |
NCT04744077 -
Physical Activity and Social-media Support
|
N/A | |
Completed |
NCT04718519 -
Migrant Workers' Responses to the COVID-19 Pandemic
|
||
Completed |
NCT02799628 -
Positive Appraisal Improve Trust Between Patients and Therapists, and Change Treatment Effects
|
N/A | |
Completed |
NCT02578212 -
Trust Game and Placebo Response
|
N/A | |
Not yet recruiting |
NCT04213625 -
Do Patients Perceive Surgeons Who Provide Personal Information as More Trustworthy and Empathetic?
|
N/A | |
Completed |
NCT04212117 -
CALS Patient Activated Learning System (PALS)
|
N/A | |
Completed |
NCT05399784 -
Postpartum Visit Timing and the Effect on Visit Attendance
|
N/A | |
Not yet recruiting |
NCT06125431 -
Factors That Affect Trust Between Physicians and Patients
|
||
Completed |
NCT03443401 -
Correlation of Trust and Outcomes Following Physical Therapy for Chronic Low Back Pain
|