A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Ensifentrine (MK-5884) Versus Placebo for the Prevention of COPD Exacerbations in Adults With a History of Moderate or Severe Exacerbations While Receiving Standard of Care (ENHANCE-3)

Inclusion Criteria: Inclusion Criteria include but are not limited to: * Has a diagnosis of Chronic Obstructive Pulmonary Disease (COPD) that was made ≥12 months prior to randomization * Has been on the stable treatment with the same standard of care (SOC) with long-acting muscarinic antagonist (LAMA)/long-acting beta-2 agonist (LABA)/inhaled corticosteroid (ICS) or LAMA/LABA (if ICS is not appropriate), for at least 2 months prior to Screening * Has a documented history of ≥1 moderate or severe COPD exacerbation while on standard of care (SOC) within 1 year of Screening * Is a current or fo…