# Characterization of the Toll-like Receptor 7-agonist Imiquimod 3.75% As a New Surrogate Model of Itch

> **NCT03943407** · NA · WITHDRAWN · sponsor: **Aalborg University**

## Conditions studied

- Itch

## Interventions

- **DRUG:** Zyclara 3.75 % Topical Cream
- **DRUG:** Prudoxin
- **OTHER:** Histamine
- **OTHER:** Cowhage
- **OTHER:** L-menthol
- **OTHER:** Trans-cinnamaldehyde (CA)

## Key facts

- **NCT ID:** NCT03943407
- **Lead sponsor:** Aalborg University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2019-11-01
- **Primary completion:** 2021-06
- **Final completion:** 2022-06
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** The Imiquimod 3.75% was ineffective
- **Last updated:** 2024-11-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03943407

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03943407, "Characterization of the Toll-like Receptor 7-agonist Imiquimod 3.75% As a New Surrogate Model of Itch". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT03943407. Licensed CC0.

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