A 24-week Study to Evaluate the Efficacy and Safety of GSK573719/GW642444 125/25 mcg and 62.5/25mcg Inhalation Powder Compared With Placebo in Subjects With COPD

This is an interventional treatment trial for Pulmonary Disease, Chronic Obstructive Read More

Inclusion Criteria:

1. Type of subject: outpatient.
2. Informed Consent: A signed and dated written informed consent prior to study participation.
3. Age: 40 years of age or older at Screening (Visit 1).
4. Gender: Male or female subjects are eligible to participate in the study.
5. COPD History: An established clinical history of COPD in accordance with the definition by the American Thoracic Society/European Respiratory Society [Celli, 2004] as follows:
6. Tobacco Use and Smoking History: Current or former cigarette smokers with a history of cigarette smoking of more than or equal to 10 pack-years
7. Severity of Disease: A post-albuterol/salbutamol FEV1/FVC ratio of <0.70 and a post-albuterol/salbutamol FEV1 of less than or equal to 70% of predicted normal values calculated using NHANES III reference equations at Visit 1 [Hankinson1999,Hankinson, 2010].
8. Dyspnea: A score of ≥2 on the Modified Medical Research Council Dyspnoea Scale (mMRC) at Screening (Visit 2)

Exclusion Criteria:

1. Pregnancy: Women who are pregnant or lactating or are planning on becoming pregnant during the study.
2. Asthma: A current diagnosis of asthma.
3. Other Respiratory Disorders: Known alpha-1 antitrypsin deficiency, active lung infections (such as tuberculosis) and lung cancer are absolute exclusionary conditions. A subject, who in the opinion of the investigator has any other significant respiratory conditions in addition to COPD should be excluded. Examples may include clinically significant, bronchiectasis, pulmonary hypertension, sarcoidosis or interstitial lung disease.
4. Other Diseases/Abnormalities: Subjects with historical or current evidence of clinically significant cardiovascular, neurological, psychiatric, renal, hepatic, immunological, endocrine (including uncontrolled diabetes or thyroid disease) or haematological abnormalities that are uncontrolled and/or a previous history of cancer in remission for < 5 years prior to Visit 1 (localized carcinoma of the skin that has been resected for cure is not exclusionary).
5. Chest X-Ray: A chest X-ray or computed tomography (CT) scan that reveals evidence of clinically significant abnormalities not believed to be due to the presence of COPD. A chest X-ray must be taken at Visit 1 if a chest X-ray or CT scan is not available within 6 months prior to Visit 1.
6. Contraindications: A history of allergy or hypersensitivity to any anticholinergic/muscarinic receptor antagonist, beta2-agonist, lactose/milk protein or magnesium stearate or a medical condition such as of narrow-angle glaucoma, prostatic hypertrophy or bladder neck obstruction that, in the opinion of the study physician contraindicates study participation or use of an inhaled anticholinergic.
7. Hospitalization: Hospitalization for COPD or pneumonia within 12 weeks prior to Visit 1.
8. Lung Resection: Subjects with lung volume reduction surgery within the 12 months prior to Screening (Visit 1).
9. 12-Lead ECG: An abnormal and significant ECG finding from the 12-lead ECG conducted at Visit 1, including the presence of a paced rhythm on a 12-lead electrocardiogram (ECG) which causes the underlying rhythm and ECG to be obscured. Investigators will be provided with ECG reviews conducted by a centralized independent cardiologist to assist in evaluation of subject eligibility.
10. Screening Labs: Significantly abnormal finding from clinical chemistry and haematology tests at Visit 1.
11. Medication Prior to Spirometry: Unable to withhold albuterol/salbutamol for the 4 hour period required prior to spirometry testing at each study visit.
12. Medications prior to Screening: List are provided in the protocol
13. Oxygen: Use of long-term oxygen therapy (LTOT) described as oxygen therapy prescribed for greater than 12 hours a day. As-needed oxygen use (i.e., less than 12 hours per day) is not exclusionary.
14. Nebulized Therapy: Regular use (prescribed for use every day, not for as-needed use) of short-acting bronchodilators (e.g., albuterol/salbutamol) via nebulized therapy.
15. Pulmonary Rehabilitation Program: Participation in the acute phase of a pulmonary rehabilitation program within 4 weeks prior to Visit 1. Subjects who are in the maintenance phase of a pulmonary rehabilitation program are not excluded.
16. Drug or Alcohol Abuse: A known or suspected history of alcohol or drug abuse within 2 years prior to Visit 1.
17. Affiliation with Investigator Site: Is an investigator, sub-investigator, study coordinator, employee of a participating investigator or study site, or immediate family member of the aforementioned that is involved in this study.