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COVID-19 Testing in Underserved and Vulnerable Populations

COVID-19 Testing in Underserved and Vulnerable Populations Receiving Care in San Diego Community Health Centers

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05315908
Enrollment
9120
Registered
2022-04-07
Start date
2020-11-01
Completion date
2021-11-15
Last updated
2024-02-28

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

Conditions

Cancer, Chronic Kidney Diseases, COPD, Coronary Artery Disease, Diabetes Mellitus, Type 2, Heart Failure, Obesity, Sickle Cell Disease

Brief summary

As part of National Institutes of Health Rapid Acceleration of Diagnostics-Underserved Populations (RADx-UP) program, the goal of the RADxUP study is to develop, test, and evaluate a rapid, scalable capacity building project to enhance COVID-19 testing in three regional community health centers (CHCs) in San Diego County, California. In collaboration with CHC partners, their consortium organization, Health Quality Partners (HQP), investigators are pursuing the following Specific Aims: 1) Compare the effectiveness of automated calls vs text messaging for uptake of COVID-19 testing among asymptomatic adult patients with select medical conditions and those 65 years of age and older receiving care at participating CHCs. Secondarily, investigators will invite all study participants to receive flu vaccination and will assess feasibility and acceptability of study participants to refer adult family household members who are essential workers for COVID-19 testing. 2) Gather patient, provider, CHC leadership, and community stakeholder insights to establish best practices for future scale-up of COVID-19 testing sustainability and vaccination.

Detailed description

Pronounced inequities and disparities in coronavirus disease (COVID-19)COVID-19 morbidity and mortality have been reported, largely due to comorbid conditions and social determinants of health. Approximately 95% of COVID-19 related deaths occur among individuals with underlying medical conditions. Of all racial/ethnic groups, Hispanic/Latino communities in San Diego County have experienced the greatest burden of COVID-19 disease and deaths. Furthermore, testing challenges to date are evident, including long turnaround of test results and longer waiting times for African American and Hispanics compared to whites. The goal of this community-engaged proposal is to develop, test, and evaluate a rapid, scalable capacity building project to enhance COVID-19 testing in three regional community health centers (CHCs) in San Diego County. In collaboration with CHC partners, their consortium organization (Health Quality Partners), and community stakeholders, investigators propose the following Specific Aims: 1) Compare the effectiveness of automated and live prompts and reminders and their combination for uptake of COVID-19 testing among adult patients with select medical conditions or those 65 years of age and older receiving care at participating CHCs. Secondarily, investigators will invite all study participants to receive flu vaccination and will assess feasibility and acceptability of study participants to refer adult family household members who are essential workers for COVID-19 testing. 2) Gather patient, provider, CHC leadership, and community stakeholder insights to establish best practices for future scale-up of COVID-19 testing sustainability and vaccination. This community-engaged project includes underserved (socioeconomically disadvantaged and large proportion of Hispanic/Latinos) as well as COVID-19 vulnerable individuals (patients with medical comorbidities and 65 years of age and older). The approach considers regional COVID-19 morbidity and mortality disparities to identify strategies to address disproportionate infection rates and follow-up. By working in partnership with health care providers, health care system leaders, and community stakeholders, the research team has the potential to build the evidence-base approaches and identify sustainable solutions to understand and address the current and future pandemics in underserved and vulnerable populations.

Interventions

OTHERCommunity outreach method

The method includes automated call and text messaging to increase testing for COVID-19

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Jesse Nodora
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Intervention model description

Eligible patients who don't opt out will be randomized to one of two arms (automated call vs text messaging)

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Eligible participants will include asymptomatic men and women receiving care at participating community health centers with at least one clinic visit in the last year, age 21 years and over, with co-morbid conditions deemed by the Centers for Disease Control and Prevention to increase risk for severe COVID-19 illness, including heart failure, coronary artery disease, cancer, chronic kidney diseases, COPD, obesity, sickle cell disease and type 2 diabetes mellitus, and those 65 years of age and older.

Exclusion criteria

* Under age 21, inability to communicate in English and other study languages, inability to complete anterior nasal swab sampling for COVID-19

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Tested Patients1 monthThe percentage of patients who undergo testing within one month of initial contact (automated call vs text messaging) and by the end of the study period (to consider individuals who could not come to the clinic within one month)
Number (%) Tested (Total and by Clinic)1 monthNumber (%) of patients who complete COVID-19 test (total and by clinic)
Number (%) Infected (Total and by Clinic)1 monthNumber (%) of patients with positive COVID-19 test (total and by clinic)
Timeliness of Testing1 monthFrom time of contact to testing

Secondary

MeasureTime frameDescription
Proportion of Patients Who Refer for Testing1 monthThe proportion of study participants with eligible household members who refer household member(s) for COVID-19 testing
Number of Household Members Referred for Testing1 monthThe number of household members referred for COVID-19 testing
Number Vaccinated With Flu Vaccine1 monthNumber of patients who receive flu vaccine

Countries

United States

Participant flow

Recruitment details

Community health center staff will mail an introductory letter to eligible individuals describing the importance of COVID-19 testing, inviting them to receive a test, offering opt out instructions, and noting that follow-up contact (phone call, text message) will take place if they do not opt out. Patients who do not opt out and those whose mail is not returned will be randomized one week after the introductory letter is mailed.

Pre-assignment details

Participants will be randomized to one of two arms: test messaging and automated call

Participants by arm

ArmCount
Automated Call
Patients receive up to two automated phone calls in English or Spanish depending the patients' language indicated in their electronic health record (EHR), between the hours of 10:00am and 9:00pm Monday through Friday. Community outreach method: The method includes automated call and text messaging to increase testing for COVID-19
12
Text Messaging
Patients receive up to two text messages in English or Spanish depending the patients' language indicated in their electronic health record (EHR), between the hours of 10:00am and 9:00pm Monday through Friday. Community outreach method: The method includes automated call and text messaging to increase testing for COVID-19
25
Total37

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up4,4774,606

Baseline characteristics

CharacteristicAutomated CallText MessagingTotal
Age, Continuous62 years
STANDARD_DEVIATION 13
57 years
STANDARD_DEVIATION 13
61 years
STANDARD_DEVIATION 13
Race/Ethnicity, Customized
Asian
2 Participants1 Participants3 Participants
Race/Ethnicity, Customized
Hispanic
7 Participants20 Participants27 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 Participants0 Participants1 Participants
Race/Ethnicity, Customized
Non-Hispanic White
2 Participants3 Participants5 Participants
Sex: Female, Male
Female
8 Participants11 Participants19 Participants
Sex: Female, Male
Male
4 Participants13 Participants17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Number (%) Infected (Total and by Clinic)

Number (%) of patients with positive COVID-19 test (total and by clinic)

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, our team was forced to terminate the intervention study and pivot to alternate strategies. This would allow us to continue our efforts to deliver as many COVID-19 tests as possible to help limit the spread of COVID-19 in underserved communities.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Automated CallNumber (%) Infected (Total and by Clinic)0 Participants
Text MessagingNumber (%) Infected (Total and by Clinic)0 Participants
Primary

Number (%) Tested (Total and by Clinic)

Number (%) of patients who complete COVID-19 test (total and by clinic)

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, we were forced to terminate the intervention study and pivot to alternate strategies. This would allow us to continue our efforts to deliver as many COVID-19 tests as possible to help limit the spread of COVID-19 in underserved communities. Because of extremely low participants, there was no power to conduct statistical analysis for primary and secondary outcomes.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Automated CallNumber (%) Tested (Total and by Clinic)12 Participants
Text MessagingNumber (%) Tested (Total and by Clinic)25 Participants
Primary

Percentage of Tested Patients

The percentage of patients who undergo testing within one month of initial contact (automated call vs text messaging) and by the end of the study period (to consider individuals who could not come to the clinic within one month)

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, our team was forced to terminate the intervention study and pivot to alternate strategies. Because the study was terminated, the data of the percentage of patients who undergo testing by the end of the study period (automated call vs text messaging) was not collected.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Automated CallPercentage of Tested Patients12 Participants
Text MessagingPercentage of Tested Patients25 Participants
Primary

Timeliness of Testing

From time of contact to testing

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, our team was forced to terminate the intervention study and pivot to alternate strategies. This would allow us to continue our efforts to deliver as many COVID-19 tests as possible to help limit the spread of COVID-19 in underserved communities. Because the study was terminated, the data of timeliness from time of contact to testing was not collected.

Secondary

Number of Household Members Referred for Testing

The number of household members referred for COVID-19 testing

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, we were forced to terminate the intervention study and pivot to alternate strategies. This would allow us to continue our efforts to deliver as many COVID-19 tests as possible to help limit the spread of COVID-19 in underserved communities. Because the study was terminated, this data was not collected.

Secondary

Number Vaccinated With Flu Vaccine

Number of patients who receive flu vaccine

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, we were forced to terminate the intervention study and pivot to alternate strategies. Because of extremely small number of participants, there was no power to conduct statistical analysis for both primary and secondary outcomes.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Automated CallNumber Vaccinated With Flu Vaccine9 Participants
Text MessagingNumber Vaccinated With Flu Vaccine21 Participants
Secondary

Proportion of Patients Who Refer for Testing

The proportion of study participants with eligible household members who refer household member(s) for COVID-19 testing

Time frame: 1 month

Population: Because of extremely low testing uptake, slow accrual at participating health centers and continuously changing COVID pandemic, we were forced to terminate the intervention study and pivot to alternate strategies. This would allow us to continue our efforts to deliver as many COVID-19 tests as possible to help limit the spread of COVID-19 in underserved communities. Because the study was terminated, this data was not collected.

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