# A Pilot Study to Characterise Saliva and Sputum FTIR Spectral Profiles in Patients with COPD During Exacerbations and When Stable

> **NCT04524819** · — · TERMINATED · sponsor: **Portsmouth Hospitals NHS Trust** · enrollment: 27 (actual)

## Conditions studied

- Chronic Obstructive Pulmonary Disease

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT04524819
- **Lead sponsor:** Portsmouth Hospitals NHS Trust
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** TERMINATED
- **Start date:** 2019-09-18
- **Primary completion:** 2023-10-31
- **Final completion:** 2023-10-31
- **Target enrollment:** 27 (ACTUAL)
- **Why stopped:** Airborne particles during data collection a risk during COVID-19
- **Last updated:** 2024-11-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04524819

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04524819, "A Pilot Study to Characterise Saliva and Sputum FTIR Spectral Profiles in Patients with COPD During Exacerbations and When Stable". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04524819. Licensed CC0.

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