A Phase 3 interventional study of Stapokibart and Placebo in Seasonal Allergic Rhinitis (SAR), sponsored by Chengdu Kangnuoxing Biopharma,Inc.. Recruiting at 27 sites in China. Open to participants aged 12 Years to 18 Years. Per ClinicalTrials.gov, last updated 2026-09-03.
Sponsored by Chengdu Kangnuoxing Biopharma,Inc. · Phase 3, Interventional, and Treatment
This is a multicenter, randomized, double-blind, placebo-controlled phase III clinical study aimed at evaluating the efficacy and safety of stapokibart in adolescent patients with seasonal allergic rhinitis, and observing the quality of life, Pharmakokinetics(PK), Pharmacodynamics (PD) characteristics, and immunogenicity of subjects.
Allergic rhinitis (AR) is a non infectious chronic inflammatory disease of the nasal mucosa that is mainly mediated by immunoglobulin E (IgE) in atopic individuals exposed to allergens.
All participants will receive standard of care treatment as concomitant medications. Stapokibart or placebo will be administered as add-on therapy.
404 studies on the registry are indexed under Rhinitis, Allergic, Seasonal; 24 are open to participants now.
This study's planned enrollment of 136 is close to the median of 131 across 366 interventional studies indexed under Rhinitis, Allergic, Seasonal.
Browse Rhinitis, Allergic, Seasonal studies →Chengdu Kangnuoxing Biopharma,Inc. is the lead sponsor of 6 studies on the registry; 5 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
FEV1
From a breathing test (spirometry): how much air you can blow out in the first second. Often given as a percentage of what is expected for your age, height and sex.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Metastases
Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Biological: Stapokibart
Drug: Placebo
subcutaneous injection
subcutaneous injection
Mean change from baseline in daily reflective total nasal symptom scores (rTNSS) over 2 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in daily rTNSS over 4 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in the daily AM and PM reflective total nasal symptom score (AM and PM rTNSS) over 2 and 4 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change and mean percent change from baseline in daily AM pre-dose instantaneous total nasal symptom score (iTNSS) over 2 weeks and 4 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean percent change from baseline in daily rTNSS over 2 and 4 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in daily rTNSS (including AM rTNSS and PM rTNSS) for individual nasal symptoms (rhinorrhea, nasal congestion, nasal itching, and sneezing) over 2 and 4 weeks of treatment
The total nasal symptom score (TNSS) is the sum of the four symptom scores for rhinorrhea, nasal congestion, nasal itching, and sneezing, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change and mean percent change from baseline in daily reflective total ocular symptom score (rTOSS) over 2 weeks or 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in daily AM and PM reflective total ocular symptom score (AM and PM rTOSS) over 2 weeks and 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in daily AM pre-dose instantaneous total ocular symptom score (iTOSS) over 2 weeks and 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean percent change from baseline in daily rTOSS over 2 weeks and 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean percent change from baseline in daily AM pre-dose iTOSS over 2 weeks and 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Mean change from baseline in daily rTOSS (including AM and PM rTOSS) for individual symptoms (itching/burning eyes, tearing/watering eyes, and eye redness) over 2 weeks and 4 weeks of treatment
The total ocular symptom score (TOSS) is the sum of three symptom scores for itchy/burning eyes, watery eyes, and red eyes, where each symptom is scored on a scale of 0 to 3.With higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
The change from baseline in rhinoconjunctivitis quality of life questionnaire (RQLQ(S)≥12) score in allergic rhinitis participants over 2 weeks and 4 weeks of treatment
The Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ(S)≥12) is a 28-item, self-administered, disease-specific (AR) quality of life scale used by participants to assess quality of life over a week.Each question is scored from 0 to 6, with higher scores indicating a greater impact on quality of life.
Time frame: Up to week 4
Incidence of adverse events (AEs)
Evaluate the incidence of treatment-emergency adverse events.
Time frame: Up to week 12
Serum Stapokibart concentration
Collect the blood samples for Pharmacokinetics analysis
Time frame: Up to week 12
Change and percent change from baseline of human thymus and activation-regulated chemokine (TARC)
Collect the blood samples for Pharmacodynamics analysis
Time frame: Up to week 12
change and percent change from baseline of total immunoglobulin E (IgE)
Collect the blood samples for Pharmacodynamics analysis
Time frame: Up to week 12
change and percent change from baseline of counts and ratios of eosinophil in blood
Collect the blood samples for Pharmacodynamics analysis
Time frame: Up to week 12
The development of anti-drug antibody (ADA) and neutralizing antibody (Nab)
Collect the blood samples for anti-drug antibody testing
Time frame: Up to week 12
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Studies of the drug tested here: Stapokibart
Rhinitis, Allergic, Seasonal →
Chengdu Kangnuoxing Biopharma,Inc.