NCT05606016

Brief Summary

Antigen self-testing kits are more available at this stage in the pandemic, but among vulnerable populations, use is still low and instructions for antigen testing are not typically designed for low health literacy populations. Studies are needed to explore access and use of antigen tests among vulnerable populations and examine if low-health-literacy-designed interventions improve COVID-19 testing decisions and behaviors. This study will focus on understanding factors associated with rapid COVID-19 testing, specifically. The primary objectives of the embedded study are to 1) Determine the effectiveness of community-level intervention using door-to-door recruitment and education in increasing COVID-19 testing and 2) Compare the effectiveness of the CHW- Facilitated Self-Sampling Intervention (FSSI) vs. CHW Testing Navigation Intervention (TNI).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,232

participants targeted

Target at P75+ for not_applicable covid19

Timeline
Completed

Started Mar 2023

Typical duration for not_applicable covid19

Geographic Reach
1 country

3 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 11, 2022

Completed
3 months until next milestone

First Posted

Study publicly available on registry

November 4, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

March 30, 2023

Completed
1.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 14, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 14, 2024

Completed
Last Updated

July 1, 2025

Status Verified

June 1, 2025

Enrollment Period

1.4 years

First QC Date

August 11, 2022

Last Update Submit

June 26, 2025

Conditions

Keywords

COVID-19antigen testingdecision makingtesting behaviorsvulnerable populationssocial networks

Outcome Measures

Primary Outcomes (1)

  • Testing completion by each study arm

    Percent of participants from each study arm who complete testing (antigen or PCR)

    between baseline and 2 months after the intervention

Secondary Outcomes (7)

  • Number of participants who appropriately used antigen test as assessed by survey

    baseline

  • Number of participants who appropriately used antigen test as assessed by survey

    2 months after the intervention

  • Number of participants with a positive test who took mitigation measures as assessed by survey

    baseline

  • Number of participants with a positive test who took mitigation measures as assessed by survey

    2 months after the intervention

  • Number of participants who share antigen tests with close contacts who need to test as assessed by survey

    baseline, 2 months after the intervention

  • +2 more secondary outcomes

Study Arms (3)

Facilitated Self-Sampling Intervention (FSSI)

EXPERIMENTAL

Participants in the FSSI arm will receive education on COVID-19 testing and be provided with rapid antigen tests. Participants will also receive pre and post surveys.

Behavioral: Facilitated Self-Sampling Intervention (FSSI)

Testing Navigation Intervention (TNI).

EXPERIMENTAL

Participants in the TNI arm will receive COVID-19 testing education and be navigated to PCR testing sites. Participants will also receive pre and post surveys.

Behavioral: Testing Navigation Intervention (TNI).

Control

ACTIVE COMPARATOR

Participants in the Control Group arm will receive a CDC-designed COVID-19 testing brochures, and pre and post surveys only.

Behavioral: Control

Interventions

CHWs will consent and enroll participants to the FSSI from the randomized PBGs. FSSI will consist of Community Health Worker (CHW) delivered education intervention about COVID-19 testing at a home visit. In addition, the participant will receive a batch of 4 rapid antigen tests which can be shared with people in the household or other close contacts if needed. The CHWs will provide low-literacy instructions for administering the tests, including print and video. The CHWs will also provide guidance if they tested positive (e.g. quarantine, notify contacts, wearing a mask). The CHWs will also be available by phone to the participants for any follow-up questions. CHW will follow-up via text and phone with the participants during the two months post intervention. In addition to the intervention, the participants will be asked to complete the pre and post test surveys. Post surveys will be administered online or over the phone two months after the initial intervention.

Facilitated Self-Sampling Intervention (FSSI)

CHWs will consent and enroll participants to the TNI from the randomized PBGs. The TNI will consist of CHW-led intervention at a home visit where they will provide low health literacy materials about how and when to conduct a COVID 19 test (including antigen and PCR) using a decision tree model and provide navigation to nearby PCR testing sites, locations to purchase antigen tests and support in accessing federal government antigen tests if not already obtained by the participant. In addition to the intervention, the participants will be asked to complete the pre and post-test surveys. Post surveys will be administered online or over the phone two months after the initial intervention.

Testing Navigation Intervention (TNI).
ControlBEHAVIORAL

Participants in the Control arm will receive CDC-designed COVID-19 testing brochures, and pre and post surveys only.

Control

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Aged 18 years or older

You may not qualify if:

  • Having been diagnosed with COVID-19 in the past 30 days based on a positive test (antigen or PCR) or a clinical diagnosis
  • Having tested for COVID-19 with PCR or antigen test within the past 30 days

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

The University of Texas Health Science Center, Brownsville

Brownsville, Texas, 78520, United States

Location

The University of Texas Health Science Center, Houston

Houston, Texas, 77030, United States

Location

University of Texas Health Science Center,Tyler

Tyler, Texas, 75708, United States

Location

MeSH Terms

Conditions

COVID-19

Interventions

Troponin I

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

TroponinMultiprotein ComplexesMacromolecular SubstancesMicrofilament ProteinsBiopolymersPolymersMuscle ProteinsContractile ProteinsProteinsAmino Acids, Peptides, and ProteinsCytoskeletal Proteins

Study Officials

  • Maria E Fernandez, PhD

    The University of Texas Health Science Center, Houston

    PRINCIPAL INVESTIGATOR
  • Belinda M Reininger, DrPh

    The University of Texas Health Science Center, Brownsville

    PRINCIPAL INVESTIGATOR
  • David D McPherson, MD

    The University of Texas Health Science Center, Houston

    PRINCIPAL INVESTIGATOR
  • Paul McGaha, DO

    The University of Texas Health Science Center, Tyler

    PRINCIPAL INVESTIGATOR
  • Marcia C de Oliveira Otto, PhD

    The University of Texas Health Science Center, Houston

    PRINCIPAL INVESTIGATOR
  • Kayo Fujimoto, PhD

    The University of Health Science Center, Houston

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Lorne Bain Distinguished Professorship in Public Health and Director, Center for Health Promotion and Prevention Research

Study Record Dates

First Submitted

August 11, 2022

First Posted

November 4, 2022

Study Start

March 30, 2023

Primary Completion

August 14, 2024

Study Completion

August 14, 2024

Last Updated

July 1, 2025

Record last verified: 2025-06

Data Sharing

IPD Sharing
Will not share

Locations