# Efficacy of Antihistamine Dosing-up and add-on Treatment With H2-receptor Antagonist

> **NCT03293225** · — · COMPLETED · sponsor: **Ajou University School of Medicine** · enrollment: 110 (actual)

## Conditions studied

- Chronic Urticaria

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT03293225
- **Lead sponsor:** Ajou University School of Medicine
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2017-08-24
- **Primary completion:** 2019-05-24
- **Final completion:** 2019-05-24
- **Target enrollment:** 110 (ACTUAL)
- **Last updated:** 2019-07-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03293225

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03293225, "Efficacy of Antihistamine Dosing-up and add-on Treatment With H2-receptor Antagonist". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT03293225. Licensed CC0.

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