Status:

RECRUITING

Interleukin-2 for Refractory Chronic Spontaneous Urticaria

Lead Sponsor:

Second Xiangya Hospital of Central South University

Collaborating Sponsors:

Xiangya Hospital of Central South University

Third Affiliated Hospital, Sun Yat-Sen University

Conditions:

Chronic Spontaneous Uriticaria

Eligibility:

All Genders

18-74 years

Phase:

PHASE2

PHASE3

Brief Summary

The goal of this clinical trial is to learn if human interleukin-2 (IL-2) works to treat moderate to severe chronic spontaneous urticaria in adults who remain symptomatic despite oral antihistamine tr...

Detailed Description

Background: Urticaria is a common disorder characterized by localized edema due to dilation and increased permeability of small blood vessels in the skin and mucous membranes. The primary clinical ma...

Eligibility Criteria

Inclusion

  • Gender: Not limited; Age: at least 18 years old and less than 75 years old;
  • Diagnosed with chronic spontaneous urticaria (CSU) (including patients overlapped with chronic inducible urticaria) according to the 2021 EAACI/GA²LEN/EDF/AAAAI guidelines;
  • Disease course of CSU for at least 12 weeks;
  • The patient has been treated with second-generation antihistamines (one or more types, up to 4 tablets per day) every day for 2 weeks or more but still experiences significant symptoms of wheals and/or itching, with a UAS7 score ≥16 or a UCT score \<12;
  • UAS7 ≥16 on the date prior to randomization (according to complete daily symptom log data recorded in the past 7 days before randomization);
  • Willing and able to complete daily symptom logs throughout the entire study period;
  • The patient voluntarily consents to participate in this research project and has signed the informed consent.

Exclusion

  • Pregnant or breastfeeding women, or women planning to conceive within 6 months;
  • Has used corticosteroids, immunosuppressants, leukotriene receptor antagonists, H2 receptor antagonists, intravenous immunoglobulin (IVIG) therapy, and/or undergone plasma exchange in the past 4 weeks;
  • Has received omalizumab or other biologic treatments in the past 12 weeks;
  • Has previously undergone interleukin-2 treatment;
  • Has a history of anaphylactic shock;
  • Plans or anticipates the use of any prohibited drugs or treatments during the screening and/or treatment periods;
  • Currently has active or recurrent severe infections, such as active tuberculosis;
  • Has a congenital or acquired immunodeficiency disorder;
  • Has a history of drug or alcohol abuse, mental disorders, or poor compliance, making them unable to adhere to treatment;
  • Currently enrolled in another clinical trial;
  • Is an employee of the clinical research facility or directly involved in the study, or is an immediate family member of such an individual;
  • Any other reason that makes participation in this trial inappropriate.

Key Trial Info

Start Date :

March 19 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

May 31 2026

Estimated Enrollment :

124 Patients enrolled

Trial Details

Trial ID

NCT06924762

Start Date

March 19 2025

End Date

May 31 2026

Last Update

April 11 2025

Active Locations (1)

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1

the Second Xiangya Hospital of Central South University

Changsha, Hunan, China, 410000