# Retrospective Review on Patients With Culture Negative Empyema

> **NCT04477980** · — · COMPLETED · sponsor: **Chinese University of Hong Kong** · enrollment: 153 (actual)

## Conditions studied

- Empyema, Pleural

## Interventions

- **OTHER:** Disease outcome (mortality)

## Key facts

- **NCT ID:** NCT04477980
- **Lead sponsor:** Chinese University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2018-05-03
- **Primary completion:** 2020-02-29
- **Final completion:** 2020-05-31
- **Target enrollment:** 153 (ACTUAL)
- **Last updated:** 2020-07-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04477980

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04477980, "Retrospective Review on Patients With Culture Negative Empyema". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04477980. Licensed CC0.

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