RecruitingPhase 2Drug trialClinical Trial of Omalizumab for Allergen Sensitized and Exposed Individuals With COPDThis research is being done to test if a drug called omalizumab can help people with Chronic Obstructive Pulmonary Disease (COPD) and allergies. Each participant will be in the study for about 16 months, including 1-3 months of screening, 12 months of receiving the study drug at a clinic, and a follow-up call one month after your final clinic visit.