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Phase III Clinical Study of Cetirizine Hydrochloride Injection in Treatment of Acute Urticaria

Efficacy and Safety of Cetirizine Hydrochloride Injection in the Treatment of Acute Urticaria: a Randomized, Double-blind, Positive Controlled, Multicenter Phase III Clinical Study

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06819774
Acronym
Phase III
Enrollment
284
Registered
2025-02-11
Start date
2024-04-22
Completion date
2025-08-31
Last updated
2025-02-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Urticaria

Keywords

Cetirizine hydrochloride injection, acute urticatia

Brief summary

The objective of this study was to evaluate the efficacy and safety of cetirizine hydrochloride injection in the treatment of acute urticaria.The participants were randomized to receive cetirizine hydrochloride or diphenhydramine hydrochloride.

Interventions

DRUGCetirizine Hydrochloride Injection

The subjects received a single dose of 1-2 ml of the injection of cetirizine hydrochloride (administered by intravenous push) and a 1 ml dose of the injection simulant of diphenhydramine hydrochloride (administered by deep intramuscular injection), both as a simulation of a single administration.

DRUGDiphenhydramine Hydrochloride Injection

The subjects received 1 ml of the injection of Diphenhydramine Hydrochloride (for deep intramuscular injection) and 1 ml of the injection of Simulated Cetirizine Hydrochloride (administered by rapid intravenous injection over 1 to 2 minutes), each as a single dose.

Sponsors

Shandong New Time Pharmaceutical Co., LTD
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

1. Age range: 18 - 65 years old (inclusive of the threshold value), gender not limited; 2. Diagnosed with acute urticaria (the definition of acute urticaria: spontaneous wheals and/or angioedema attacks ≤ 6 weeks); 3. At screening,the severity score of pruritus of the patient was ≥ 1 point ; 4. At screening,the degree score of wheals/erythema of the patient assessed by the investigator was ≥ 1 point ; 5. Be willing and able to give informed consent.

Exclusion criteria

1. Patients in whom an antihistamine are contraindicated (such as those with angle-closure glaucoma, symptomatic benign prostatic hyperplasia, etc.); 2. Patients who used H1 antagonists (such as diphenhydramine, cetirizine, loratadine, fexofenadine, levocetirizine, desloratadine, etc.) within 2 hours before randomization; 3. Patients who used H2 antagonists (such as cimetidine, ranitidine, famotidine, roxatidine, etc.) within 2 hours before randomization; 4. Patients who used doxepin within 2 hours before randomization; 5. Patients who received steroid hormone treatment for acute allergic reactions within 4 hours before randomization; 6. Patients who used epinephrine within 20 minutes before randomization; 7. Patients who are known to be allergic to hydroxyzine, cetirizine, levocetirizine, diphenhydramine; 8. Pregnant or lactating women; or those who have a pregnancy plan or plan to donate sperm/eggs from the screening day to the end of medication within 1 month; or those who are unwilling to take one or more contraceptive measures from the screening day to the end of medication within 1 month; 9. Patients with urticarial drug eruption; 10. Patients with acute urticaria who have concurrent symptoms such as laryngeal edema, allergic asthma, anaphylactic shock during screening; 11. Patients with urticarial vasculitis, hereditary angioedema, antihistamine-resistant urticaria or skin diseases that interfere with the evaluation of treatment efficacy during screening; 12. Patients with a history of immunodeficiency; 13. Patients with other major medical conditions (such as blood diseases, cardiovascular and cerebrovascular diseases, liver diseases, kidney diseases, etc.) or mental disorders and judged by the investigator to be unsuitable to participate in this study; 14. Patients who are concurrently using P-glycoprotein inhibitors (such as cyclosporine, itraconazole, dronedarone, amiodarone, quinidine, verapamil, etc.) during screening; 15. Patients who participated in other clinical trials within 3 months before screening (excluding those who only participated in the screening of the clinical trial but did not use the trial drugs or devices); 16. Patients with acute urticaria accompanied by fever during screening; 17. Patients engaged in dangerous jobs such as driving, high-altitude work, mechanical operation, etc., and cannot stop within 48 hours after medication; 18. Other various situations.

Design outcomes

Primary

MeasureTime frameDescription
Scoring of the severity of pruritusTwo hours after the treatment was completedScoring of the severity of pruritus

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026