Efficacy, Safety, and Tolerability Study of Lunsekimig Compared With Placebo in Adult Participants With Inadequately Controlled Chronic Obstructive Pulmonary Disease (COPD) Characterized by an Eosinophilic Phenotype

All eligible participants will undergo subcutaneous administrations of lunsekimig or matching placebo during a 48-weeks treatment period

Inclusion criteria

• Between 40 to 80 years of age
• Physician diagnosed chronic obstructive pulmonary disease (COPD) ≥1 year
• Post-bronchodilator forced expiratory volume in 1 second (post-BD FEV1) ≥ 20% and ≤ 70% of predicted value and FEV1/FVC (forced expiratory volume in 1 second /forced vital capacity) <0.70
• Former or current smokers ≥10 pack-years
• Chronic Airways Assessment Test (CAAT) ≥10
• ≥2 moderate or ≥1 severe COPD exacerbations in the prior year
• Triple (ICS+LABA+LAMA) COPD therapy ≥12 consecutive weeks
• EOS (blood eosinophil count) ≥ 150 cells/μL
• 18.0 ≤ Body Mass Index ≤ 40.0 kg/m2

Exclusion criteria

Participants are excluded from the study if any of the following criteria apply:

• Asthma, including pediatric asthma, or asthma-COPD overlap syndrome (ACOS)
• Significant pulmonary disease other than COPD
• Long-term oxygen therapy >4.0 L/min or requirement of >2.0 L/min to maintain oxygen saturation >88% at rest
• Unstable disorder that can impact participants safety or study outcomes
• Active or incompletely treated tuberculosis
• Current or past malignancies
• Concomitant therapies:

• long-term macrolides or phosphodiesterase Type 3 (PDE-3) or PDE-4 inhibitors unless on stable therapy for >6 months
• any biologic therapy or systemic immunosuppressant within 4 months or 5 half-lives prior to Screening

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial