Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of the Combination of GSK573719 and GW642444 in Subjects With COPD

This is a multicenter, randomized, double-blind, placebo-controlled, parallel group study to evaluate the safety and tolerability of the combination of GSK573719 (500mcg) Inhalation Powder and GW642444 (25mcg) Inhalation Powder administered once-daily via a novel dry powder inhaler (Novel DPI) over 28 days in subjects with COPD

Inclusion criteria

• A signed and dated written informed consent prior to study participation
• Males or females of non-childbearing potential
• 40 or more years of age
• COPD diagnosis
• 10 pack-years history or greater of cigarette smoking
• Post-bronchodilator FEV1/FVC ratio of 0.70 or less
• Post-bronchodilator FEV1 of 80% or less of predicted normal

Exclusion criteria

• Current diagnosis of asthma
• Other significant respiratory disorders besides COPD, including alpha-1 deficiency
• Previous lung resection surgery
• Significant abnormalities in chest x-ray presentation
• Use of oral steroids, antibiotics or hospitalization for a COPD exacerbation within 3 motnhs prior screening
• Any significant disease that would put subject at risk through study participation
• BMI greater than 35
• Pacemaker
• Significantly abnormal ECG, Holter, or clinical lab finding (including Hepatitis B or C)
• Cancer
• Allergy or hypersensitivity to anticholinergics or inhaler excipients
• Diseases that would contra-indicate the use of anticholinergics
• Use of oral corticosteroids within 6 weeks of screening
• Use of long-acting beta-agonists within 48 hours of screening
• Use of tiotropium within 14 days of screening
• Use of theophyllines or anti-leukotrienes within 48 hours of screening
• Use of short-acting bronchodilators within 4 hours of screening
• Use of investigational medicines within 30 days of screening
• Use of high dose inhaled corticosteroids
• Use of long-term oxygen therapy, CPAP or NIPPV
• Previous use of GSK573719 or GW642444