# Epidemiology, Immunology and Clinical Characteristics of COVID-19 (EPIC3)

> **NCT05764083** · — · COMPLETED · sponsor: **VA Office of Research and Development** · enrollment: 2824 (actual)

## Conditions studied

- SARS-CoV-2
- COVID-19

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05764083
- **Lead sponsor:** VA Office of Research and Development
- **Sponsor class:** FED
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-07-22
- **Primary completion:** 2024-09-30
- **Final completion:** 2024-09-30
- **Target enrollment:** 2824 (ACTUAL)
- **Last updated:** 2025-07-09


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05764083

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05764083, "Epidemiology, Immunology and Clinical Characteristics of COVID-19 (EPIC3)". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT05764083. Licensed CC0.

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