Overview
The study primarily aims to demonstrate the superiority of GSK5784283 as an add-on therapy compared to placebo in reducing the annualized rate of moderate and severe chronic obstructive pulmonary disease (COPD) exacerbations.
Eligibility
Inclusion Criteria:
- Male or eligible female participants
- Participants with \>=40 to less than or equal to (\<=) 80 years of age.
- An eosinophilic phenotype with elevated BEC.
- Moderate to very severe COPD with frequent exacerbations.
- Participants with elevated COPD assessment test (CAT) score.
- Current or former cigarette smokers.
- On triple (Inhaled corticosteroid \[ICS\]+ Long-acting muscarinic antagonist \[LAMA\]+ Long-acting beta-agonist \[LABA\]) or dual inhaled COPD therapy, if ICS is considered not appropriate.
Exclusion Criteria:
- Current or prior physician diagnosis of asthma
- Other clinically significant lung disease.
- Pneumonia, COPD exacerbation, or lower respiratory tract infection within the 4 weeks prior to Screening Visit 1.
- Participants with a history of, or plan for lung volume reduction surgery / endobronchial valve procedure.
- Continuous oxygen therapy (more than 16 hours/ day).
- Cor pulmonale resulting in right heart failure and severe pulmonary hypertension.
- A current malignancy or history of malignant neoplasm within the last 5 years (except definitively treated non-melanoma skin cancer or carcinoma in situ of the uterine cervix).
- Myocardial infarction, unstable angina or stroke within 6 months of screening, unstable arrhythmia.
- New York Heart Association class III or IV heart failure.
- Other significant medical conditions that could impact participants' safety or study outcomes.


