Comparative Study of ELLIPTA Dry Powder Inhaler (DPI) Versus DISKUS DPI Used With HandiHaler DPI in Subjects With Chronic Obstructive Pulmonary Disease (COPD)

Inclusion Criteria:

- Subjects must be capable of giving signed informed consent.

- Subjects must have a diagnosis of COPD with a documented history of COPD for at least
12 months, in accordance with the definition by the American Thoracic Society/European
Respiratory Society.

- Subjects must be 40 years of age inclusive, at the time of signing the informed
consent.

- Male or female subjects will be included. Females must not be pregnant or planning
pregnancy during the study or not lactating.

- Subjects must have a documented post albuterol forced expiratory volume in one second
(FEV1)/ forced vital capacity (FVC) ratio <0.70 and FEV1 <=70% of predicted obtained
within two years of Visit 1.

- Current or former (defined as subjects who have quit smoking for at least 3 months
prior to Screening/Visit 1) cigarette smokers with a > 10 pack-year smoking history
[Number of pack-years = (number of cigarettes per day/20) x number of years smoked
(example, 10 pack-years is equal to 20 cigarettes per day for 10 years, or 10
cigarettes per day for 20 years].

- All subjects should be currently receiving maintenance treatment for COPD for at least
4 weeks prior to Randomization/Visit 1 and evaluated as unlikely to change COPD
treatment within 4 weeks of Visit 1.

- All subjects should be able to stay on their prescribed maintenance COPD inhaler (s)
without change throughout the entire treatment period.

- Subjects must be able to read, comprehend, and record information in English.

Exclusion Criteria:

- Subjects must not have a current diagnosis of asthma.

- Subjects must not have used the ELLIPTA, DISKUS, or HandiHaler inhalers in the 12
months prior to Visit 1.

- Subjects must not be receiving their current COPD medications with the ELLIPTA,
DISKUS, or HandiHaler inhalers.

- Subjects must not be receiving only inhaled short-acting beta-adrenergic agonists,
i.e., albuterol as their daily COPD therapy (as needed or regularly scheduled).

- Subjects must not have experienced more than 1 COPD exacerbation which required
hospitalization in the 12 months prior to Visit 1.

- Subjects must not have a known or suspected history of alcohol or drug abuse within
the last 2 years.

- Subjects must not have a history of hypersensitivity to any component of the study
inhalers (example, lactose, magnesium stearate). In addition, subjects with a history
of severe milk protein allergy that, in the opinion of the study physician,
contraindicates participation will also be excluded.

- Subjects with other respiratory disorders, including active tuberculosis, active lung
cancer, sarcoidosis, lung fibrosis, pulmonary hypertension, or pulmonary disease
(including but not confined to asthma, bronchiectasis with the need for treatment,
cystic fibrosis, and bronchopulmonary dysplasia), interstitial lung diseases or other
active pulmonary diseases.

- Subjects with historical, or current evidence of clinically significant or rapidly
progressing or unstable cardiovascular, neurological, renal, hepatic, immunological,
endocrine (including uncontrolled diabetes or thyroid disease) or hematological
abnormalities that are uncontrolled. Significant is defined as any disease that, in
the opinion of the investigator, would put the safety of the participant at risk
through participation, or which would affect the analysis if the disease/condition
exacerbated during the study will be excluded.

- Subjects with history of psychiatric disease, intellectual impairment, poor motivation
or other conditions that will limit the validity of informed consent to participate in
the study will be excluded.

- Subjects at risk of non-compliance, or unable to comply with the study procedures, or
unable to continue their current medications.

- Subjects who have received an investigational drug and/or medical device/inhaler
within 30 days of entry into this study (Screening/Visit 1), or within five drug
half-lives of the investigational drug, whichever is longer.

- Subjects will not be eligible for this study if he/she is an immediate family member
of the participating investigator, sub investigator, study coordinator, or employee of
the participating investigator.