# Residual SARS-CoV-2 Presence in the Respiratory Tract and Lung Parenchyma (After SARS-CoV-2 Infection or COVID-19)

> **NCT04775134** · — · RECRUITING · sponsor: **Universitaire Ziekenhuizen KU Leuven** · enrollment: 75 (estimated)

## Conditions studied

- Covid19

## Interventions

- **DIAGNOSTIC_TEST:** Lung biopsy

## Key facts

- **NCT ID:** NCT04775134
- **Lead sponsor:** Universitaire Ziekenhuizen KU Leuven
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2021-01-31
- **Primary completion:** 2025-05-31
- **Final completion:** 2025-12-31
- **Target enrollment:** 75 (ESTIMATED)
- **Last updated:** 2024-07-03


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04775134

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04775134, "Residual SARS-CoV-2 Presence in the Respiratory Tract and Lung Parenchyma (After SARS-CoV-2 Infection or COVID-19)". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04775134. Licensed CC0.

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