Treatment for asthma using SIM0718

A Multicenter, Randomized, Double-blind, Parallel-group, Placebo-controlled Phase III Clinical Study Evaluating the Efficacy and Safety of SIM0718 in Adults and Adolescents With Asthma

This study is testing if an injection called SIM0718 can help adults and teens with severe asthma feel better and have fewer asthma attacks.

Quick facts

• Phase: PHASE3
• Study type: Interventional
• Enrollment: 418 (estimated)
• Ages: 12 Years to 75 Years
• Sex: All
• Sponsor: Simcere Pharmaceutical Co., Ltd (other)
• Drugs / interventions: immunotherapy
• Locations: 1 site (Beijing, Beijing Municipality)
• Trial ID: NCT06488755 on ClinicalTrials.gov

What this trial studies

This phase III clinical study evaluates the efficacy and safety of SIM0718, an injection treatment for asthma, in adults and adolescents. It is a multicenter, randomized, double-blind, parallel-group, placebo-controlled trial, meaning participants will be randomly assigned to receive either the treatment or a placebo without knowing which they receive. The study focuses on individuals with eosinophilic asthma who have been on stable doses of inhaled corticosteroids and have experienced severe asthma exacerbations. The goal is to determine if SIM0718 can improve asthma control and reduce exacerbations compared to placebo.

Who should consider this trial

Good fit: Ideal candidates are individuals aged 12 to 75 years with a diagnosis of asthma for at least 12 months and currently on medium- to high-dose inhaled corticosteroids.

Not a fit: Patients who have not experienced severe asthma exacerbations in the past year or those not compliant with asthma controller medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve asthma control and reduce the frequency of severe exacerbations for patients.

How similar studies have performed: Other studies have shown promise with similar approaches in treating asthma, but the specific efficacy of SIM0718 is being evaluated in this novel setting.

Eligibility criteria

Inclusion Criteria:

* Age 12 to 75 years, weight ≥ 40 kg, diagnosed with asthma for at least 12 months；
* Currently receiving medium- to high-dose inhaled corticosteroids (ICS) in combination with 1 or 2 control medications and have been on a stable dose for at least 28 days prior to randomization；
* Pre-bronchodilator (trough) FEV1 ≤ 80% of predicted normal for adults and ≤90% of predicted normal for adolescents ；
* Positive bronchodilator response within 12 months prior to randomization or during the screening period;
* Asthma Control Questionnaire (ACQ-5) score ≥ 1.5;
* At least one severe asthma exacerbation within 12 months prior to the screening visit and no occurrence within 28 days prior to randomization;
* Based on the investigator judgment, the subject demonstrates acceptable inhaler, peak flow meter, and spirometry techniques;
* Compliance with usual asthma controller use ≥ 80% based on the patient diary in 7 days prior to dosing;
* Voluntarily participate in this clinical study and sign the informed consent form and be able to comply with the clinical visit schedule and study-related procedures;
* Female subjects of childbearing potential who are sexually active with non-sterilized male partners, male subjects, and their female partners of childbearing potential agree to use adequate and effective contraception throughout the study;

Exclusion Criteria:

* Current respiratory disease that may impair lung function as judged by the investigator;
* Diagnosis of helminth parasitic infection within 24 weeks prior to randomization and who have not received or have not responded to standard therapy;
* Within 28 days prior to randomization, with acute or chronic infection; or have a severe viral infection;
* Has a known or suspected history of immunosuppression or frequent, recurrent, or long-term infection;
* History of active tuberculosis; or untreated latent tuberculosis or tuberculosis not receiving standard treatment, unless the investigator judges that the patient has been adequately treated;
* People with hepatitis B, hepatitis C, or HIV infection;
* History of malignancy;
* Major surgery within 8 weeks prior to signing the informed;
* Bronchial thermoplasty within 12 months prior to randomization;
* Treatment of systemic glucocorticoid during 4 weeks prior to signing informed to randomization;
* Previous use or ongoing use of systemic immunosuppressants or biologics for the treatment of autoimmune or inflammatory diseases in 8 weeks or 5 half-lives prior to randomization;
* Within 16 weeks or 5 half-lives prior to randomization, received a biologic agent with the same therapeutic purpose;
* Participated in an interventional clinical trial of any drug or medical device within 3 months or 5 half-lives prior to randomization;
* Poor response to or intolerance to prior anti-IL-4Rα antibody therapy;
* Within 3 months prior to randomization, received specific immunotherapy；
* Receipt of intravenous human immunoglobulin (IVIG) or blood products within 30 days prior to randomization;
* Vaccination with live(attenuated) vaccine within 30 days prior to randomization or plan to receive live (attenuated) vaccine during the study;
* Are using concomitant medications or treatments that are prohibited in the protocol;
* The following laboratory abnormalities occurred during the screening period: eosinophils≥1500 cells/mm3 or 1.5×109/L; Platelets≤80,000 cells/mm3 or 80×109/L; phosphocreatine kinase (CPK) ≥5 times the upper limit of normal (ULN); alanine aminotransferase (ALT) ≥3-fold ULN; aspartate aminotransferase (AST)≥ 3-fold ULN; Bilirubin ≥ 2x ULN;
* History of alcohol abuse or drug abuse within 12 months prior to randomization;
* Current smokers, or those who have been smoking in recent 6 months, or former smokers who have not been smoking for 6 months with a smoking history of ≥10 pack years;
* Allergy to L-histidine, trehalose, or Tween 80, or history of systemic hypersensitivity to any biologic products;
* Females of childbearing potential have a positive pregnancy test result during the screening period; Females planning to become pregnant or breastfeeding;
* Any clinically significant examination abnormality or serious and/or uncontrolled disease that, in the opinion of the investigator, may affect the subject safety, or affect the evaluation of efficacy, or preclude the subject completion of the entire study.

Where this trial is running

Beijing, Beijing Municipality

• China Japan Friendship Hospital — Beijing, Beijing Municipality, China (RECRUITING)

Study contacts

• Study coordinator: Yi Wang

Conditions: Asthma, Eosinophilic