Participants must be greater than or equal to (\>=) 40 to less than or equal to (\<=) 80 years of age, at the time of signing the Informed consent
Elevated Blood Eosinophil Count (BEC)
Moderate to severe COPD with frequent exacerbations, defined as:
* A clinically documented history of COPD as defined by the American Thoracic Society/European Respiratory Society for at least 1 year
* A post-bronchodilator forced expiratory volume in one second (FEV1)/ forced vital capacity (FVC) ratio of \< 0.70 and a post-bronchodilator FEV1 \>30 percent (%) and \<= 80% predicted normal values
* A well-documented history of at least 2 moderate or 1 severe exacerbation in the 12 months prior to screening
COPD assessment test (CAT) score \>=10 at Visit 1
Smoking status: Current or former cigarette smokers with a history of cigarette smoking of \>=10 pack-years.
Participants should be on optimized inhaler therapy, defined as inhaled corticosteroid (ICS) plus Long-acting muscarinic receptor antagonist (LAMA) plus Long-acting beta2-adrenergic receptor agonist (LABA) either as multiple inhalers or a single combination inhaler for at least 6 months prior to Screening Visit 1
Body mass index (BMI) \>=16 kilogram per square meter (kg/m\^2)
Male and eligible female participants
You may not be if
The following subjects are excluded:
Participants with a current or prior physician diagnosis of asthma
Other clinically significant lung disease: The Investigator must judge that COPD is the primary diagnosis accounting for the clinical manifestations of the lung disease
Participants with pneumonia, COPD exacerbation, or lower respiratory tract infection within the 4 weeks prior to Screening Visit 1
Lung resection: Participants with a history of or plan for lung volume reduction surgery / endobronchial valve procedure.
Pulmonary rehabilitation: Participants in the acute phase of a pulmonary rehabilitation program within 4 weeks prior to Screening Visit 1
Continuous oxygen: Participants requiring oxygen supplementation for more than 12 hours per day
Cor pulmonale - resulting in right heart failure, severe pulmonary hypertension
Parasitic Infection: Participants with a known, pre-existing parasitic infection within 6 months of Screening (Visit 1)
Clareo Health | Depemokimab as an Extended treatmeNt Duration Biologic in Adults With Chronic Obstructive Pulmonary Disease (COPD) and Type 2 Inflammation (ENDURA-2)
