# Randomized Placebo-controlled Analysis of Superior Laryngeal Nerve Block for Neurogenic Cough

> **NCT04468542** · PHASE3 · UNKNOWN · sponsor: **University of South Florida** · enrollment: 65 (estimated)

## Conditions studied

- Cough
- Nerve Block

## Interventions

- **DRUG:** Superior laryngeal nerve block - Intervention (Bupivacaine and triamcinolone acetonide suspension)
- **DRUG:** Superior laryngeal nerve block - Placebo (saline)

## Key facts

- **NCT ID:** NCT04468542
- **Lead sponsor:** University of South Florida
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-01-12
- **Primary completion:** 2022-12
- **Final completion:** 2022-12
- **Target enrollment:** 65 (ESTIMATED)
- **Last updated:** 2022-11-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04468542

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04468542, "Randomized Placebo-controlled Analysis of Superior Laryngeal Nerve Block for Neurogenic Cough". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04468542. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*