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NOT YET RECRUITING
NCT07236372
NA

Comparing Standard-Dose and High-Dose Cetirizine for Acute Urticaria

Sponsor: University of Phayao

View on ClinicalTrials.gov

Summary

The goal of this clinical trial is to learn whether a higher dose of cetirizine works better than the standard dose to relieve symptoms of acute urticaria (hives) in adults. The study also aims to learn about the safety of taking a higher dose for a short period of time. The main questions the study aims to answer are: Does the higher dose of cetirizine help people with acute urticaria improve faster than the standard dose? What side effects do participants experience when taking the higher dose? Researchers will compare two groups: one group taking the standard dose of cetirizine (10 mg per day) and another group taking a higher dose (40 mg per day). This will help researchers understand which dose works better and whether the higher dose is safe. Participants will: Take the assigned study medication for 7 days Record their daily symptoms, including itch and hive severity Return for follow-up visits on Day 3, Day 7, and Week 6 Have blood tests to check liver and kidney function before and after treatment This study may help improve treatment options for people with acute urticaria and reduce the need for unnecessary steroid use.

Official title: Comparative Efficacy of Standard-Dose Versus Updosed Cetirizine in Acute Urticaria: A Randomized Controlled Trial

Key Details

Gender

All

Age Range

18 Years - 60 Years

Study Type

INTERVENTIONAL

Enrollment

140

Start Date

2025-11

Completion Date

2026-10

Last Updated

2025-11-19

Healthy Volunteers

No

Conditions

Interventions

DRUG

Cetirizine 10 mg

Participants in the standard-dose arm receive cetirizine 10 mg orally once daily for 7 days. The study medication is provided in capsule form to match the appearance of the high-dose capsules.

DRUG

Cetirizine 40 mg

Participants in the high-dose arm receive cetirizine 20 mg orally twice daily (total 40 mg/day) for 7 days. The study medication is provided in capsule form to ensure identical appearance between arms.

Locations (1)

University of Phayao Hospital

Phayao, Muang, Thailand