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A Clinical Study of TQC2731 Injection in Patients With Moderate to Severe Chronic Obstructive Pulmonary Disease

A Multicenter, Randomized, Double-blind, Placebo-controlled Phase II Clinical Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of TQC2731 Injection in Patients With Moderate to Severe Chronic Obstructive Pulmonary Disease

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06707883
Enrollment
258
Registered
2024-11-27
Start date
2024-12-31
Completion date
2027-09-30
Last updated
2025-12-12

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

Conditions

Chronic Obstructive Pulmonary Disease

Brief summary

To evaluate the efficacy and safety of TQC2731 injection in patients with moderate to severe chronic obstructive pulmonary disease.

Interventions

TQC2731 injection is a monoclonal antibody that blocks thymic stromal lymphopoietin (TSLP)

DRUGTQC2731 Placebo

TQC2731 Placebo without drug substance.

Sponsors

Shanghai Chia Tai Tianqing Pharmaceutical Technology Development 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
40 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Able and willing to provide written informed consent and comply with the study protocol; * Participant must be ≥40 to ≤80 years of age at the time of signing informed consent. * Participants with a physician diagnosis of Chronic Obstructive Pulmonary Disease(COPD) and a history of COPD ≥12 months with medical records or related records at the time of screening; * Post-bronchodilator FEV1/Forced vital capacity (FVC)\<0.70 and post-bronchodilator FEV1 % predicted ≥20% and \< 80% during screening. * Modified Medical Research Council (mMRC) Dyspnea Scale grade≥2 during screening. * Background triple therapy (ICS+long-acting beta-agonists (LABA)+LAMA) for at least 3 months with a stable dose for at least 1 month prior to randomization; Double therapy allowed if ICS is contraindicated. * With a history of acute exacerbation of ≥2 moderate or ≥1 severe within the previous 12 months prior to screening. Multiple acute exacerbation events with an interval of less than 14 days are counted as one.

Exclusion criteria

* COPD with asthma; * Subjects with active pulmonary diseases other than COPD assessed by the investigator. * Moderate to severe Acute exacerbations of chronic obstructive pulmonary disease (AECOPD) occurred within 4 weeks prior to screening or during screening; * History of lung transplantation; * Previous use of TQC2731. * Diagnosis of alpha-1 anti-trypsin deficiency; * History of lung volume reduction surgery or pneumonectomy within 6 months prior to randomization, or planned lung volume reduction surgery during the study period; * Positive hepatitis B surface antigen, or hepatitis C virus antibody, or syphilis antibody. * Diagnosis of immunodeficiency, including but not limited to HIV infection; * Infection requiring systemic therapy within 2 weeks prior to randomization. * Starting rehabilitation within 4 weeks prior to randomization, or planned rehabilitation during the study period; * Treatment with oxygen of more than 12 hours per day. * Heart failure New York Heart Association (NYHA) class III or IV during the screening period. * History of malignancy within 5 years prior to screening, excluding cervical carcinoma in situ, ductal carcinoma in situ, etc. * Pregnancy or breastfeeding.

Design outcomes

Primary

MeasureTime frameDescription
Annual rate of acute COPD exacerbationBaseline to week 24Annualized rate of moderate or severe COPD exacerbations over the 24-week treatment period compared to placebo

Secondary

MeasureTime frameDescription
Annual rate of acute COPD exacerbationBaseline to week 52Annualized rate of moderate COPD exacerbations over the 52-week treatment period compared to placebo.
Improvement in St. George's Respiratory Questionnaire (SGRQ)Baseline to week 52Proportion of patients with SGRQ improvement ≥4 points at Week 52
Change in SGRQBaseline to week 52Change from baseline to Week 52 in SGRQ total score compared to placebo
Change in pre-bronchodilator FEV1Baseline to week 52Change in pre-bronchodilator FEV1 from baseline to week 52 compared to placebo.
Change in post-bronchodilator FEV1Baseline to week 24 and 52Change in post-bronchodilator FEV1 from baseline to week 24 and 52 compared to placebo.
Change in pre-bronchodilator forced expiratory volume (FEV1)Baseline to week 24Change in pre-bronchodilator FEV1 from baseline to week 24 compared to placebo.
Adverse Events (AE) and Serious Adverse Events (SAE)Baseline to 64 weeksThe incidence and severity of AE and SAE, as well as abnormal laboratory examination index.
Anti-drug antibodies (ADA)Baseline through week 52Incidence of ADA.
Immunoglobulin E (IgE)Baseline to 52 weeksChanges in IgE levels in peripheral blood.
Fractional exhaled nitric oxide (FeNO)Baseline to 52 weeksChanges in FeNO.
Change in EXACTBaseline to week 52Change from baseline to Week 52 in EXACT total score compared to placebo.

Countries

China

Outcome results

None listed

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