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NCT Number: NCT06300203

Study of CM310 in Patients With Uncontrolled Seasonal Allergic Rhinitis

Allergic rhinitis (AR) is a non-infectious chronic inflammatory disease of the nasal mucosa mainly mediated by immunoglobulin E after exposure to allergens in atopic individuals. The typical symptoms of AR are paroxysmal sneezing, watery rhinorrhea, itching, and nasal congestion, which may be accompanied by ocular symptoms, including eye itching, tearing, redness, and burning sensation, which are more common in patients with hay fever allergies. Bronchial asthma is associated with bronchial asthma in 40% of patients with AR, suggesting a comorbid feature of allergic disease.

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Key information

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Beijing Tongren Hospital, Capital Medical University

Beijing, Beijing Municipality, 100000, China

Location status: Recruiting

Location contact

About this study

AR is a common clinical chronic nasal disease, affecting 10% to 20% of the world's population, and has become a global health problem. AR not only seriously affects the quality of life of patients, resulting in patient fatigue, impaired learning, attention, and decision-making ability, but also causes a heavy social burden.

AR has a variety of classification methods. According to the type of allergen, it can be divided into seasonal (SAR, common allergens are seasonal allergens such as pollen) and perennial (PAR, common allergens are indoor allergens such as dust mites or occupational allergies), which is a classification method often used in clinical studies. According to the course of the disease, it can be divided into intermittent (symptom onset < 4 days/week, or < 4 consecutive weeks) and persistent (symptom onset ≥ 4 days/week, and ≥ 4 consecutive weeks). According to the severity of the disease, it can be divided into minor AR (mild symptoms, with no significant impact on quality of life) and moderate-severe AR (more severe or severe symptoms, with significant impact on quality of life). The results of the cooperative survey showed that persistent moderate-to-severe disease was the most common in the overall population, accounting for 52.2%, indicating that the treatment and control of AR has become an urgent problem to be solved.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Voluntarily sign the informed consent form.

Exclusion criteria

  • Have any condition that are not suitable for participating in this study.

Treatment and study plan

Interleukin-4 receptor responders

Biological

Interleukin-4 receptor was injected subcutaneously.

Placebo

Other

Placebo was injected subcutaneously.

Primary outcomes

  1. Average change from baseline in daily retrospective total nasal symptom score (rTNSS) at week 2.

    Time frame: up to Week 2

    Average change from baseline in daily retrospective total nasal symptom score (rTNSS) during treatment period. The Total Nasal Symptom Score (TNSS) is the sum of the four symptom scores of runny nose, nasal congestion, nasal itching, and sneezing, with each symptom scoring from 0 to 3.

Study contacts

Contact information is provided by the study sponsor or research team.

Sponsors and collaborators

Lead sponsor

Beijing Tongren Hospital

Other

Registry information

Official study title

The Efficacy and Safety of Humanized Antibody Targeting the Interleukin-4 Receptor Alpha Subunit (IL-4Rα) in Patients With Uncontrolled Seasonal Allergic Rhinitis Under Standard Treatment: A Randomized, Double-Blind, Placebo-controlled IIT Study

Acronym: MEGREZ

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Mar 8, 2024
Registry last updated
Sep 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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