Health Status of Patients with Moderate to Severe COPD after Treatment with Nebulized Arformoterol Tartrate or Placebo for 1 Year

摘要

Purpose: Chronic obstructive pulmonary disease (COPD) is a progressive disease that impairs both objectively measured lung function and patient reported health status. In a randomized clinical trial of patients with moderate to severe COPD, we compared changes in health status after adding arformoterol tartrate or placebo to patients' treatment regimens.