# ATP and Capsaicin Cough Provocation Test in Chronic Cough and Bronchiectasis

> **NCT03638063** · — · UNKNOWN · sponsor: **Guangzhou Institute of Respiratory Disease** · enrollment: 200 (estimated)

## Conditions studied

- Chronic Cough
- Bronchiectasis

## Interventions

- **DIAGNOSTIC_TEST:** Adenosine Triphosphate
- **DIAGNOSTIC_TEST:** capsaicin

## Key facts

- **NCT ID:** NCT03638063
- **Lead sponsor:** Guangzhou Institute of Respiratory Disease
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2018-10-29
- **Primary completion:** 2020-07
- **Final completion:** 2020-07
- **Target enrollment:** 200 (ESTIMATED)
- **Last updated:** 2020-02-11


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03638063

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03638063, "ATP and Capsaicin Cough Provocation Test in Chronic Cough and Bronchiectasis". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT03638063. Licensed CC0.

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