Epidemiology, Immunology and Clinical Characteristics of COVID-19 (EPIC3)
NCT ID: NCT05764083
Last Updated: 2025-07-09
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
2824 participants
OBSERVATIONAL
2020-07-22
2024-09-30
Brief Summary
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Detailed Description
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There are 4 primary aims to this study: (1) identify patterns of SARS-CoV-2 viral shedding from multiple body sites in inpatient Veterans with COVID-19 infection during hospitalization through 28 days of follow-up; (2) characterize development of immunity among inpatient and outpatient Veterans with COVID-19 from the first VHA encounter through 24 months; (3) determine predictors of infection and disease course, severity and related death among inpatient and outpatient Veterans with and without SARS-CoV-2 infection and/or COVID-19 disease over 24 months; and (4) determine individual and health-facility-level risk factors for infection (including asymptomatic infection) with SARS-CoV-2 among Veterans at high risk for COVID-19 disease who are living in VHA Community Living Centers.
Veterans are likely to be substantially affected by COVID-19 due to a high prevalence of risk factors for severe COVID-19 disease. Understanding demographic, medical, and social factors that confer risk for severe COVID-19 disease is critical for improving care for Veterans with COVID-19. Characterizing viral shedding of SARS-CoV-2 infection during COVID-19 illness may yield important insight about factors that affect SARS-CoV-2 transmission. Characterizing the development of immunity among persons with COVID-19 is foundational to developing effective vaccines against the disease. Better understanding transmission risk and risk factors in the setting of VHA Community Living Centers will help prevent future infections.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Inpatient Cohort
COVID-19-positive or -suspected inpatients: Eligible inpatient cohort participants include Veterans who receive inpatient care at VHA facilities and are tested for SARS-CoV-2. Members of this inpatient cohort include those with and without SARS-CoV-2 infection.
No interventions assigned to this group
Outpatient Cohort
COVID-19-positive or -suspected outpatients: Eligible outpatient cohort participants include Veterans who seek care in (1) VA medical center emergency departments, (2) VA medical center urgent care clinics, or (3) VA medical center COVID-19-specific testing sites, and who are tested for SARS-CoV-2 but do not require hospital admission at the time of evaluation. Members of this outpatient cohort include those with and without SARS-CoV-2 infection.
No interventions assigned to this group
Community Living Center Cohort
Community Living Center residents: Eligible Community Living Center cohort participants include all residents who reside in VA medical center-operated Community Living Centers. Members of this Community Living Center cohort include those with and without SARS-CoV-2 infection.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
* Eligible outpatient cohort participants include Veterans who seek care in (1) VA medical center emergency departments, (2) VA medical center urgent care clinics, or (3) VA medical center COVID-19-specific testing sites, and who are tested for SARS-CoV-2 but do not require hospital admission at the time of evaluation
* Eligible Community Living Center cohort participants include all residents who reside in VA medical center-operated Community Living Centers
Exclusion Criteria
* Potential participants who are not Veterans
* Veterans who are illiterate or have limited or no English language proficiency
18 Years
ALL
Yes
Sponsors
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VA Office of Research and Development
FED
Responsible Party
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Principal Investigators
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Jennifer S Lee, MD PhD MA
Role: STUDY_CHAIR
VA Palo Alto Health Care System, Palo Alto, CA
Nicholas L. Smith, PhD
Role: STUDY_CHAIR
VA Puget Sound Health Care System Seattle Division, Seattle, WA
Locations
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VA Palo Alto Health Care System, Palo Alto, CA
Palo Alto, California, United States
Countries
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References
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Huang L, Li X, Kamal SI, Sugimoto JD, Liu CH, Wang T, Morelli DK, Midthun JB, Pakanati VR, Deardorff KV, Sporleder JL, Lopez J, Holodniy M, Smith NL, Lee JS, Shah JA, Ross JM. Epidemiology, Immunology and Clinical Characteristics of COVID-19 (EPIC3)-Database of a prospective longitudinal observational study within the Veterans Health Administration. Front Public Health. 2025 Jun 2;13:1535315. doi: 10.3389/fpubh.2025.1535315. eCollection 2025. No abstract available.
Ross JM, Sugimoto JD, Timmons A, Adams J, Deardoff K, Korpak A, Liu C, Moore K, Wilson D, Bedimo R, Chang KM, Cho K, Crothers K, Garshick E, Gaziano JM, Holodniy M, Hunt CM, Isaacs SN, Le E, Jones BE, Shah JA, Smith NL, Lee JS; EPIC Investigators. Early Outcomes of SARS-CoV-2 Infection in a Multisite Prospective Cohort of Inpatient Veterans. Open Forum Infect Dis. 2023 Jun 27;10(7):ofad330. doi: 10.1093/ofid/ofad330. eCollection 2023 Jul.
Li X, Pakanati V, Liu C, Wang T, Morelli D, Korpak A, Baraff A, Isaacs SN, Vittor A, Chang KM, Le E, Smith NL, Lee JS, Ross JM, Shah JA; EPIC3 Investigators. Peripheral blood cytokine profiles predict the severity of SARS-CoV-2 infection: an EPIC3 study analysis. BMC Infect Dis. 2025 May 8;25(1):677. doi: 10.1186/s12879-025-10914-6.
Provided Documents
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Document Type: Informed Consent Form
Related Links
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Seattle Epidemiologic Research and Information Center
VA Cooperative Studies Program
Other Identifiers
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2028
Identifier Type: -
Identifier Source: org_study_id
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