Crossover Blinded Trial of Cell Therapy Versus Placebo in COPD

Inclusion Criteria: * Patients are included in treatment by self-referral and after consultation with a designated patient coordinator who determines initial eligibility, and then by the clinic nurse practitioner or physician of Lung Institute who determines final eligibility for inclusion. Patients must be diagnosed with chronic obstructive pulmonary disease (COPD) and be able to travel to the Dallas clinic location. Exclusion Criteria: * Patients who are unable to provide informed consent, pregnant patients, prisoners, non-English speakers, patients with a history of cancer within the past 5 years, patients with active tuberculosis or pneumonia. Patients without a documented COPD diagnosis are excluded.