A Prospective, Single Site, Randomized, Controlled, Parallel Group Study in Subjects With Chronic Obstructive Pulmonary Disease (COPD) Stage III and IV Using AlphaCore or Sham (Control, Not Active) as a Prophylactic Treatment

PERFORMANCE AND SAFETY VARIABLES: The primary efficacy endpoint for this study is the total Chronic obstructive pulmonary disease (COPD) Assessment Test (CAT) score change from baseline to the 8 week follow-up period comparing the two device groups. Secondary efficacy endpoints will be the mean difference from baseline to the 8 week follow-up for the following assessments: Medical Research Council (MRC) dyspnoea scale, 6 minutes walking test and Forced Expiratory Volume in one second (FEV1) Safety Variables: Each subject will be assessed throughout the study for Adverse Events and at the last visit (4 months) subjects will undergo another physical examination including vital signs and blood pressure.