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A Study of IL4Rα Monoclonal Antibody in Patients With Seasonal Allergic Rhinitis(SAR).

A Randomized, Double-Blind, Placebo-Controlled, Multicenter Phase II Clinical Trial to Evaluate the Efficacy and Safety of GR1802 Injection in Combination With Background Therapy in Patients With SAR.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06315426
Enrollment
240
Registered
2024-03-18
Start date
2024-03-24
Completion date
2025-10-31
Last updated
2025-04-25

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

Conditions

Allergic Rhinitis

Brief summary

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.

Interventions

Recombinant fully human anti-IL4Rα monoclonal antibody drug.

BIOLOGICALPlacebo

Placebo

Sponsors

Genrix (Shanghai) Biopharmaceutical Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Main Inclusion Criteria: 1. Voluntarily sign the informed consent form. 2. Seasonal allergic rhinitis has been prevalent for at least 2 years. 3. Poor control of seasonal allergic rhinitis with nasal glucocorticoids or other therapeutic agents during the same pollen season in the past. 4. Positive SPT or serum-specific IgE test results. 5. Symptom severity scores for the season met the enrollment criteria. Main

Exclusion criteria

1. Other nasal comorbidities or co-morbidities/states that may be present at the time of screening that affect efficacy determination. 2. Subjects whose allergen exposures in their home or work environments may be expected to change significantly during the trial period. 3. Subjects with poorly controlled recent asthma conditions. 4. Presence of current or past history of infection of special concern, e.g., active tuberculosis, helminthic infections, severe herpes virus infections, etc. 5. Previous use of anti-interleukin 4 receptor alpha subunit (IL4Rα) monoclonal antibody. 6. Have a serious underlying medical condition that, in the opinion of the investigator, may pose a risk to subject safety by participation in a clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
Change from Baseline in rTNSS( reflective total nasal symptom scores)Over 2 weeksTNSS 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. The total score is 12, the higher the score, the worse the symptoms.

Secondary

MeasureTime frameDescription
Change from Baseline in rTNSSOver 4 weeksTNSS 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. The total score is 12, the higher the score, the worse the symptoms.
Mean change from baseline in iTNSS(instantaneous total nasal symptom scores)week 2、4TNSS 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. The total score is 12, the higher the score, the worse the symptoms.
Mean change from baseline in iTOSS(instantaneous total ocular symptom scores)week 2、4TOSS is the sum of symptom scores of eye itching/foreign body sensation/redness and tearing, with each symptom scoring from 0 to 3. The total score is 6, the higher the score, the worse the symptoms.
Change from Baseline in rTOSS( reflective total ocular symptom scores)Over 2、4 weeksTOSS is the sum of symptom scores of eye itching/foreign body sensation/redness and tearing, with each symptom scoring from 0 to 3. The total score is 6, the higher the score, the worse the symptoms.
Change from baseline in RQLQ(Rhinoconjunctivitis Quality of Life Questionnaire) scoresweek2、4The RQLQ is used to measure the problems that adults with rhinoconjunctivitis experience in their daily lives. It has 28 questions in 7 domains. The total score is the sum of the 7 domain scores, with higher scores being associated with poorer quality of life.
Adverse events (AEs)up to 12 weeksIncidence of AEs.
Immunogenicity characteristicsup to 12 weeksPositive rate of ADA(anti-drug antibody) testing
Change from baseline in VAS(Visual Analog Scale) scoreweek2、4Patients marked the score corresponding to the severity of the current overall AR symptoms by drawing a line on a 0-10 cm scale,the higher the score, the worse the symptoms.

Countries

China

Outcome results

None listed

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