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This study is an exploratory, two-part, 12-week, Phase 2a study to evaluate the mechanism of action of Itepekimab (anti-IL-33-mAb) and its impact on airway inflammation in former and current smokers with COPD, aged 40 to 70 years.

Evaluate the efficacy of itepekimab compared with placebo on the annualized rate of acute moderate-or-severe COPD exacerbations in former smokers with moderate-to-severe COPD

Evaluate the efficacy of itepekimab compared with placebo on the annualized rate of acute moderate-or-severe COPD exacerbations in former smokers with moderate-to-severe COPD

This is a prospective, randomized, parallel group, double-blind, sham-controlled, multicenter clinical trial following patients to 2 years. The objective is to assess the safety and effectiveness of Bronchial Rheoplasty for the treatment of the symptoms of chronic bronchitis in adult COPD patients with moderate to severe chronic bronchitis. A total of 270 patients will be randomized at up to 40 study centers in the United States, Canada, and Europe.

Phase 2a Randomized, Placebo-Controlled Clinical Study to Evaluate the Efficacy and Safety of MK-5475 in Adults With Pulmonary Hypertension Associated With Chronic Obstructive Pulmonary Disease.

Tozorakimab is hypothesized to have a beneficial effect in patients with COPD by reducing the frequency and severity of COPD exacerbations and improving COPD symptoms and quality of life.

The current study will test the feasibility of using an engineering-inspired study design to identify effective COPD self-management treatment components.