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Completed Not applicable Interventional Accepts healthy volunteers Results available

Community Network-driven COVID-19 Testing and Vaccination of Vulnerable Populations in the Central US

ClinicalTrials.gov ID: NCT04743908

Public ClinicalTrials.gov record NCT04743908. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 3:33 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Community Network-driven COVID-19 Testing and Vaccination of Vulnerable Populations in the Central US (C3)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This C3 project, Community network-driven COVID-19 testing of vulnerable populations in the Central US, will implement and evaluate a COVID-19 testing and vaccination approach that combines an evidence-based Social Network Testing Strategy (SNS) with community developed COVID-19 public health messages (SNS+). C3 will engage two disenfranchised populations across rural and urban sites in states across the Central US (Texas (TX), Louisiana (LA), Arkansas (AR), Indiana (IN), Illinois (IL)). C3 leverages NIDA's Justice Community Opioid Innovation Network (JCOIN), the PIs' extensive community located COVID-19 testing programs, and a network of established community partnerships. The collaborative community-academic partnerships, research and engagement infrastructure, and team's leadership across JCOIN will ensure that C3 can rapidly recruit, enroll and test most disenfranchised community members, (n=2400) and through this process, accelerate any forthcoming COVID-19 public health prevention interventions. C3 focuses on two communities most impacted by COVID-19: 1) Criminal justice involved (CJI) - non-incarcerated people with previous history of arrest/jail/prison, probation/parole, drug-court attendance, witnessed or experienced a negative interaction with police or law enforcement; and 2) Low-income Latinx - community members at 250% or below Federal Poverty Level. Both of these diverse populations, and the overlap between them, have some of the highest rates of COVID-19 infection and death in the United States. Messaging that affirms individual agency and corrects misinformation, combined with accessible and acceptable testing, is required to accelerate COVID-19 prevention for these populations.Using a two-arm randomized controlled trial design, participants will be enrolled into the Social Network testing Strategy (SNS) arm (involves social networking referrals only) or the Social Network testing Strategy with COVID-19 prevention messages (SNS+) messaging arm. The latter includes affirmation/misinformation correction messaging (discussion tools and coaching). SNS and SNS+messaging arms will both include an initial group of index study participants who will refer their network members into the study and the process will repeat itself one more time for a total of 3 waves. Indexes will refer network members (1st degree) and then those network members will refer one more round (2nd degree).

Study identification

NCT ID
NCT04743908
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Lead sponsor
University of Chicago
Other
Enrollment
1,328 participants

Conditions and interventions

Eligibility (public fields only)

Age range
15 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 28, 2021
Primary completion
Dec 30, 2022
Completion
Dec 30, 2022
Last update posted
Oct 9, 2024

2021 – 2022

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Chicago Chicago Illinois 60637

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04743908, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 9, 2024 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT04743908 live on ClinicalTrials.gov.

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