# Substance P Challenge in Healthy Participants

> **NCT04676763** · NA · COMPLETED · sponsor: **GlaxoSmithKline** · enrollment: 32 (actual)

## Conditions studied

- Skin Diseases

## Interventions

- **DRUG:** Substance P
- **DRUG:** Normal Saline
- **DRUG:** Histamine

## Key facts

- **NCT ID:** NCT04676763
- **Lead sponsor:** GlaxoSmithKline
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2021-03-02
- **Primary completion:** 2021-07-21
- **Final completion:** 2021-07-21
- **Target enrollment:** 32 (ACTUAL)
- **Last updated:** 2025-01-20


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04676763

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04676763, "Substance P Challenge in Healthy Participants". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04676763. Licensed CC0.

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