A Clinical Study Evaluating the Efficacy and Safety of SHR-1819 Injection in Patients With Season… (NCT07688772) | Clinical Trial Compass
Not Yet RecruitingPhase 3
A Clinical Study Evaluating the Efficacy and Safety of SHR-1819 Injection in Patients With Seasonal Allergic Rhinitis
China196 participantsStarted 2026-07
Plain-language summary
This study is a multicenter, randomized, double-blind, placebo-controlled Phase III clinical trial aimed at evaluating the efficacy, safety, pharmacokinetics (PK), pharmacodynamics (PD), and immunogenicity of SHR-1819 injection in patients with Seasonal Allergic Rhinitis (SAR).
Who can participate
Age range
18 Years – 75 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Age 18 to 75 years (inclusive) at the time of signing the Informed Consent Form, of any sex;
. Meet the diagnostic criteria for Seasonal Allergic Rhinitis (SAR) as defined in the "Chinese Guidelines for Diagnosis and Treatment of Allergic Rhinitis (2022, Revised Edition)", with or without allergic conjunctivitis;
. The investigator assesses that the participant has had a poor response to intranasal corticosteroids and/or other medications for allergic rhinitis (antihistamines, leukotriene receptor antagonists, etc.) during the same pollen season in previous years;
. Participants exhibit an immunoglobulin E-mediated hypersensitivity reaction to at least one seasonal pollen allergen;
. Willing and able to complete the patient diary as required by the protocol during the study; the participant voluntarily signs the Informed Consent Form (ICF) before any study-related procedures begin, can communicate smoothly with the investigator, and understands and is willing to strictly comply with the requirements of this clinical study protocol to complete the study;
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Mean change from baseline in the daily reflective Total Nasal Symptom Score (rTNSS) within 2 weeks of treatment.
. Female participants of childbearing potential and male participants whose partners are women of childbearing potential must agree to use the contraceptive measures specified in the protocol from the signing of the ICF until 3 months after the last dose.
Exclusion criteria
. At screening or within 2 weeks prior to the screening visit, the participant has other active rhinitis besides SAR;
. At screening or within 2 weeks prior to the screening visit, there may be other nasal comorbidities or concurrent diseases/conditions that could affect the efficacy assessment, acute/chronic sinusitis, or upper respiratory tract infection;
. Has glaucoma, cataract, ocular herpes simplex, other ocular infections such as infectious conjunctivitis, acute conjunctivitis, or acute keratitis at screening;
. History of Vernal Keratoconjunctivitis (VKC) and/or Atopic Keratoconjunctivitis (AKC) within 6 months prior to the screening visit;
. Use of Monoamine Oxidase Inhibitors within 2 weeks prior to the screening visit;
. Initiation of immunotherapy within 4 weeks prior to the screening visit or planned receipt of immunotherapy during the study period;
. Receipt of an investigational drug or medical device treatment within 8 weeks or 5 half-lives (if the half-life is known) prior to the screening visit, whichever is longer. Participants who participated in a clinical study but only signed the Informed Consent Form (ICF), which can demonstrate screening failure and no drug administration, may be included;
. Vaccination with or exposure to other live or live attenuated vaccines within 3 months prior to the screening visit, or participation in a vaccine clinical study;