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COVID-19 Close Contact Self-Testing Study

Close Contact Self-Testing Among Contacts of Individuals With COVID-19 Infection

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04847479
Acronym
CloseST
Enrollment
3
Registered
2021-04-19
Start date
2021-05-06
Completion date
2023-11-29
Last updated
2025-02-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Covid19

Brief summary

Widespread testing and contact tracing are critical to controlling the COVID-19 epidemic. Distribution of COVID-19 self-test kits can augment public health contact tracing efforts, as individuals with COVID-19 can distribute self-testing to close contacts. This approach can increase case detection by facilitating testing among exposed individuals, and potentially ameliorate stigma, fear, and medical mistrust associated with COVID-19 among vulnerable populations. The central hypothesis of this study is that distribution of SARS-CoV-2 self-tests to close contacts of among individuals with COVID-19 infection can increase case detection compared with a standard contact referral strategy.

Detailed description

Strategies to increase testing among individuals exposed to COVID-19 are needed. One approach to increase testing and case detection is to distribute home test kits to close contacts of individuals with COVID-19. This approach decreases logistic barriers to testing, potential exposures to COVID-19, and reduces potential stigma and fear associated with facility-based COVID-19 testing. The investigators will conduct a cohort study of individuals diagnosed with COVID-19 in the C-STRAND trial (NCT04797858), in order to determine if distribution of self-test kits to close contacts of of individuals with COVID-19 can increase case detection compared with a standard contact referral strategy among. Individuals diagnosed with COVID-19 who were randomized to the self-test (intervention) arm or received self-test kits will be assigned to receive additional self-test kits to distribute to close contacts. Individuals diagnosed with COVID-19 who were randomized to the test referral (control) arm or received test referrals will be assigned to receive text message referrals to give their close contacts to seek testing if needed. COVID-19 case detection and test uptake will be measured in both arms.

Interventions

Up to 3 COVID-19 self-test kits will be given to individuals who have tested positive for COVID-19. Participants will be instructed to give test kits to close contacts who have been exposed to them.

Text messages with testing information will be given to individuals who have tested positive for COVID-19. Participants will be instructed to share text messages with close contacts who have been exposed to them.

Sponsors

Public Health Management Corporation
CollaboratorOTHER
University of Pennsylvania
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* 18 years of age or older * Has a working telephone number * Willing and able to provide informed consent

Exclusion criteria

* Severe symptoms requiring immediate medical attention * Younger than 18 years of age * Does not have a working telephone number * Unable or unwilling to provide informed consent

Design outcomes

Primary

MeasureTime frameDescription
Number of Positive Contacts8 weeksNumber of close contacts who test positive for COVID-19

Secondary

MeasureTime frameDescription
Number of Contacts Tested8 weeksNumber of close contacts who completed a test
Number of Positive Contacts (End of Study)Through study completion, up to one yearNumber of close contacts who test positive for COVID-19 by the end of the study
Number of Contacts Tested (End of Study)Through study completion, up to one yearNumber of close contacts who completed a test by the end of the study
Number of Household Contacts Tested8 weeksNumber of household contacts who completed a test
Number of Household Contacts Tested (End of Study)Through study completion, up to one yearNumber of household contacts who completed a test by the end of the study

Countries

United States

Participant flow

Participants by arm

ArmCount
Self-Test Kit Distribution
Participants in the self-test arm receive multiple COVID-19 self-test kits to distribute to their close contacts. COVID-19 self-test: Up to 3 COVID-19 self-test kits will be given to individuals who have tested positive for COVID-19. Participants will be instructed to give test kits to close contacts who have been exposed to them.
3
Test Referral Distribution
Participants in the test referral arm receive text messages providing testing information to send to their close contacts. COVID-19 test referral: Text messages with testing information will be given to individuals who have tested positive for COVID-19. Participants will be instructed to share text messages with close contacts who have been exposed to them.
0
Total3

Baseline characteristics

CharacteristicSelf-Test Kit DistributionTotal
Age, Categorical
<=18 years
0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
3 Participants3 Participants
Age, Continuous33 years33 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
2 Participants2 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants
Race (NIH/OMB)
White
1 Participants1 Participants
Region of Enrollment
United States
3 Participants3 Participants
Sex: Female, Male
Female
2 Participants2 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 30 / 0
other
Total, other adverse events
0 / 30 / 0
serious
Total, serious adverse events
0 / 30 / 0

Outcome results

Primary

Number of Positive Contacts

Number of close contacts who test positive for COVID-19

Time frame: 8 weeks

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Positive Contacts0 Participants
Test Referral DistributionNumber of Positive Contacts0 Participants
Secondary

Number of Contacts Tested

Number of close contacts who completed a test

Time frame: 8 weeks

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Contacts Tested2 Participants
Secondary

Number of Contacts Tested (End of Study)

Number of close contacts who completed a test by the end of the study

Time frame: Through study completion, up to one year

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Contacts Tested (End of Study)0 Participants
Test Referral DistributionNumber of Contacts Tested (End of Study)0 Participants
Secondary

Number of Household Contacts Tested

Number of household contacts who completed a test

Time frame: 8 weeks

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Household Contacts Tested0 Participants
Test Referral DistributionNumber of Household Contacts Tested0 Participants
Secondary

Number of Household Contacts Tested (End of Study)

Number of household contacts who completed a test by the end of the study

Time frame: Through study completion, up to one year

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Household Contacts Tested (End of Study)0 Participants
Test Referral DistributionNumber of Household Contacts Tested (End of Study)0 Participants
Secondary

Number of Positive Contacts (End of Study)

Number of close contacts who test positive for COVID-19 by the end of the study

Time frame: Through study completion, up to one year

Population: We were unable to recruit any participants in the test referral arm who tested positive.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Self-Test Kit DistributionNumber of Positive Contacts (End of Study)0 Participants
Test Referral DistributionNumber of Positive Contacts (End of Study)0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026