Developing and Testing a COVID-19 Vaccination Acceptance Intervention (CoVAcS)

November 6, 2024 updated by: VA Office of Research and Development
The COVID-19 pandemic has resulted in significant loss of life and suffering with total case and death counts increasing daily, particularly with the emergence of the delta variant. COVID-19 vaccines have proven highly effective in preventing severe illness, hospitalization, and death. Nevertheless, according to VA data sources, only 56% of all U.S. Veterans have been vaccinated to date, largely owing to vaccine hesitancy and lack of access to vaccination. Thus, there is a critical need for evidence-based interventions to increase COVID-19 vaccine acceptance and access among Veterans, many of whom are vulnerable to poor outcomes of COVID-19. The overall goal of this study is to increase COVID-19 vaccination in Veterans of VISNs 16 and 21 who remain unvaccinated either because of vaccine hesitancy or lack of access to COVID-19 vaccine. Specifically, the investigators will test a COVID-19 Vaccine Acceptance Intervention (Motivational Interviewing) plus Implementation Facilitation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

For Aim 1, the investigators will conduct a one-year cluster randomized controlled trial of a Vaccine Acceptance Intervention versus Usual Care with randomization at the level of VA Medical Center (VAMC). Usual Care will consist of all national and local initiatives to promote COVID-19 vaccine acceptance in Veterans such as vaccine mandates, mobile clinics, outreach calls, etc. The Implementation Facilitation team will include a VISN-level external facilitator, VAMC-level internal facilitators, and clinic-level site champions to support PACT staff, Coaches and Peers in implementing the Vaccine Acceptance Intervention with unvaccinated Veterans as well as in lowering barriers to vaccine access at intervention sites. For Aim 2, the investigators will identify a diverse sample of 450 Veterans across VAMCs in VISNs 16 and 21, who have had primary care visits at Intervention and Usual Care sites, and who have either recently received (N=360) or have not received (N=90) COVID-19 vaccination. The investigators will over sample recently vaccinated Veterans to describe the impact of the Vaccine Acceptance Intervention on Veterans' decisions to accept COVID-19 vaccination in addition to over-sampling women, ethnic/racial minorities, rural and younger Veterans, and those with mental health conditions. Follow-up qualitative interviews will be conducted in a subsample to better understand factors related to recent vaccine acceptance and persistent vaccine hesitancy. Finally, for Aim 3, the investigators will conduct process and summative interviews with VA staff and providers from VAMC sites in VISNs 16 and 21 with high and low vaccination rates) to learn which implementation strategies were most and least effective.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
338718

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Arkansas
      • North Little Rock, Arkansas, United States, 72114-1706
        • Central Arkansas Veterans Healthcare System Eugene J. Towbin Healthcare Center, Little Rock, AR
    • California
      • San Francisco, California, United States, 94121-1563
        • San Francisco VA Medical Center, San Francisco, CA

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Inclusion Criteria by Aim:

  • Aim 1: Primary care clinic visit in VISN 16 or 21

  • Aim 2: =1 visit(s) at a participating VISN 16 or 21 primary care clinic or CBOC after the start of the trial at their site, and at the time of recruitment, COVID-19 vaccination status is verified as one of the following:

    • has not initiated COVID-19 vaccination
    • has initiated one of the two mRNA vaccines and is outside the window for the second dose
    • recently completed COVID-19 vaccination (has completed two doses of mRNA vaccination or has completed the single-dose Janssen/Johnson & Johnson vaccine within the past 60 days)
  • Aim 3: Implementation-focused Interviews with VISN 16 and 21 Staff and HCPs

Exclusion Criteria:

Exclusion Criteria by Aim:

  • Aim 1: Per VISN or VAMC leadership, the clinic or CBOC has extreme staffing shortages such that it would not be feasible or in the best interests of patient care to allow clinic or CBOC staff release time to participate in trainings or other meetings related to the trial

  • Aim 2: Has initiated COVID-19 vaccination with one of the mRNA vaccines and is within the window to complete the second dose on schedule (< 42 days since dose 1)

    • Serious allergic reaction or other contraindication to COVID-19 vaccination or other vaccines (e.g., flu vaccine)
    • Currently in hospice care or < 6 months to live
    • No consistent ability to be contacted by phone
    • Participating in another COVID-19 trial or study (research study flag)
    • Moderate to severe dementia as documented in the patient's VA medical record
    • Increased suicide risk as indicated by behavioral health flag
  • Aim 3: Staff or HCPs declines invitation to participate in the interview

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Health Services Research
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Intervention Arm
The VAMC Internal Facilitator will partner with the trial External Facilitators (research team and designated External Facilitators in VISNS 16 and 21) to adapt and implement the study intervention to best meet the needs and preferences of their VAMC site. In addition, each CBOC and clinic affiliated with a VAMC in the Intervention arm will need to identify a Site Champion to provide clinic-specific information to facilitate implementation of the Vaccine Acceptance Intervention at their clinic or CBOC. In addition, for clinics and CBOCs assigned to the Vaccine Acceptance Intervention, VAMC, clinic and CBOC leadership will need to agree to release PACT staff for an initial two-hour Motivational Interviewing (MI) training, and at least one 60-minute post-training consultation session over the one-year trial period. There will be additional consultation sessions offered to intervention clinics and CBOC staff, but these will be optional.
Behavioral: Moving to COVID-19 Vaccine Acceptance Intervention
The intervention utilizes a multi-pronged approach to increase Veteran vaccine acceptance. First, the research team will train Health Behavior Coordinators (HBCs) at VAI sites. HBCs will then train PACT teams at their site and Whole Health Coaches, Peer Specialists and other VA Staff in VAI strategies to use with unvaccinated Veterans. Whole Health Coaches, Peer Specialists and other VA Staff will conduct outreach calls, using strategies, with unvaccinated Veterans.
No Intervention: Usual Care Arm
A VAMC assigned to Usual Care will have no specific trial intervention requirements beyond their usual level of participation in national and local initiatives to improve COVID-19 vaccine acceptance. At both Intervention and Usual Care sites, the study team will perform quarterly "environmental scans". The environmental scan survey will include questions about site specific barriers to COVID-19 vaccination (first dose and second dose if needed), current programs/initiatives in the clinic or local community that are improving or have had no impact on vaccination rates, and the perceived importance that the VAMC/CBOC clinic staff is placing on vaccination (Environmental Scan Survey, in preparation). At Usual Care sites, a point of contact will be chosen from each clinic and CBOC to complete the environmental scan, and at Intervention sites, the Site Champion (see below) will perform the quarterly scan.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Receipt of Any Dose COVID-19 Vaccination
Time Frame: 1 year
A greater proportion of Veterans in the intervention group will receive any dose of COVID-19 vaccination compared to usual care.
1 year

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Primary Series Completion of COVID-19 Vaccination
Time Frame: 1 year
A greater proportion of previously unvaccinated Veterans in the intervention arm will complete the primary series for COVID-19 vaccination compared to usual care
1 year

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
COVID-19 Booster Vaccination
Time Frame: 1 Year
Receipt of booster requires the Veteran needs to have completed the primary series of the COVID-19 vaccination.
1 Year
Receipt of Flu Vaccine
Time Frame: 1 Year
Receipt of Flu Vaccine during study period.
1 Year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
VA Office of Research and Development

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Minneapolis Veterans Affairs Medical Center
Central Arkansas Veterans Healthcare System
Edith Nourse Rogers Memorial Veterans Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Jeffrey M Pyne, MD, Central Arkansas Veterans Healthcare System Eugene J. Towbin Healthcare Center, Little Rock, AR
  • Principal Investigator: Karen H Seal, MD MPH, San Francisco VA Medical Center, San Francisco, CA
  • Principal Investigator: Jennifer K Manuel, PhD, San Francisco VA Medical Center, San Francisco, CA

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 5, 2022

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
August 30, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 30, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 26, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 26, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 30, 2021

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 8, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 6, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
November 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SDR 21-141

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on COVID-19 Vaccination

Clinical Trials on Moving to COVID-19 Vaccine Acceptance Intervention

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings