# An Investigation Into the Mechanism of Inhalation Cough Challenge

> **NCT02039999** · NA · COMPLETED · sponsor: **Hull University Teaching Hospitals NHS Trust** · enrollment: 40 (actual)

## Conditions studied

- Cough

## Interventions

- **OTHER:** Nebulised citric acid in serial dilutions
- **OTHER:** Nebulised ATP solution in serial dilutions
- **OTHER:** Nebulised TRPA1 agonist solution in serial dilutions

## Key facts

- **NCT ID:** NCT02039999
- **Lead sponsor:** Hull University Teaching Hospitals NHS Trust
- **Sponsor class:** OTHER_GOV
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2015-02
- **Primary completion:** 2015-07
- **Final completion:** 2016-08
- **Target enrollment:** 40 (ACTUAL)
- **Last updated:** 2019-07-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT02039999

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT02039999, "An Investigation Into the Mechanism of Inhalation Cough Challenge". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT02039999. Licensed CC0.

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