Study Stopped
Potential study redesign
Addressing COVID-19 Vaccine Hesitancy With Muliti-Level Interventions in Appalachia
K-VAC
COVID19 -- Health Communication and Structural Intervention Evaluation -- K-VAC: Kentucky Vaccinating All Communities
2 other identifiers
interventional
2,250
1 country
1
Brief Summary
The purpose of this community-engaged study is to test the ability of county-level strategies to increase uptake of COVID-19 vaccination. In this study the key objective is to test whether health communication strategies or health communication + county-specific structural/environmental support increases COVID-19 vaccine uptake and changes perceptions and beliefs about the vaccination at the county-level.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable covid19
Started Sep 2026
Typical duration for not_applicable covid19
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 16, 2024
CompletedFirst Posted
Study publicly available on registry
July 17, 2024
CompletedStudy Start
First participant enrolled
September 1, 2026
ExpectedPrimary Completion
Last participant's last visit for primary outcome
September 1, 2027
Study Completion
Last participant's last visit for all outcomes
September 1, 2027
February 20, 2026
February 1, 2026
1 year
July 16, 2024
February 17, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
COVID-19 vaccination uptake
Change in \*county-level\* vaccination rates- to assess uptake, the investigators will ascertain the number of individuals in each county who received the COVID-19 vaccination during the intervention period as well as during an equivalent time frame prior to the intervention. This assessment will be obtained from existing, deidentified vaccination rate data maintained by the KY Department of Public Health. The primary outcome variable will be the number of individuals receiving vaccination.
Baseline and 6 months
Secondary Outcomes (3)
COVID-19 Vaccination Behaviors
Baseline and 6 months
COVID-19 Attitudes
Baseline and 6 months
COVID-19 Risk Perceptions
Baseline and 6 months
Study Arms (3)
Health Communication
EXPERIMENTALThis intervention arm will include exclusively health communication messaging strategies that is both theory-based and community-targeted to encourage uptake of the COVID-19 vaccine delivered by trusted local communicators. Pre-identified theory-based components are attitudes, social norms, perceived behavioral control, response efficacy, and implementation intentions. The development process for the messaging will be based through a conjoint process of identification of theory- based determinants of decision-making relevant to the desired behavior change and a community-engaged process of identifying: a) community-specific messaging themes; b) trusted communicators within the target population; and c) community-specific messaging, imaging, and themes to achieve targeting.
Health Communication + Structural
EXPERIMENTALThis intervention arm will include the conditions outlined and included in the health communication arm, however, they will be coupled with a series of structural and/or environmental intervention strategies as well, which are targeted to facilitate vaccine accessibility and uptake among adults in the randomly assigned study counties.
Standard of Care
NO INTERVENTIONNo study-specific intervention strategies (as outlined above) will be implemented in control counties at the time of the study period. Any ongoing and/or pre-existing efforts within the scope of the project's outcomes will continue as it would have i.e. a health department operating a health fair.
Interventions
This multi-level intervention will include the defined health messaging intervention components, as well as a combination of structural-level intervention strategies targeted to better facilitate access to community-based vaccination delivery. Health organizations will receive a toolkit, which will include community-specific resources and training modules such as: up to date evidence-based vaccination guidance that can be delivered to patients; strategies for navigating conversations with patients about vaccination; any applicable reimbursement, insurance, or qualifying enrollment information specific to the healthcare organization; identifying locations that facilitate access for the community members; provided advertising to promote the locations and timing of the vaccinations; and generating community-based branding for all vaccination delivery based on the trusted information sources identified.
Participants will experience a coordinated social marketing campaign including targeted messaging related to vaccine education, self-efficacy, and informative resources to receive the COVID-19 vaccine. The intervention messaging will be strategically layered and disseminated to this intervention arm predominately via Facebook by trusted and local communicators in the study counties.
Eligibility Criteria
You may qualify if:
- Must be a current Homeplace client
- Live in one of the 15 selected study counties
- Over the age of 18
- Have the ability to complete the survey in English
You may not qualify if:
- Not a current Homeplace client
- Primary residence is not in one of the 15 study counties
- Not within the ages of 18-99 years old
- English is not your primary language
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Kentucky Center of Excellence in Rural Health
Hazard, Kentucky, 41701, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Marc T. Kiviniemi, PhD
University of Kentucky
- PRINCIPAL INVESTIGATOR
Kathryn M. Cardarelli, PhD, MPH
University of Louisville
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
July 16, 2024
First Posted
July 17, 2024
Study Start (Estimated)
September 1, 2026
Primary Completion (Estimated)
September 1, 2027
Study Completion (Estimated)
September 1, 2027
Last Updated
February 20, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will not share