Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomised, Double-Blind, Parallel-Group, Placebo-Controlled Study to Evaluate the Changes in Inflammatory Markers in Induced Sputum Following Treatment With Tiotropium Inhalation Capsules 18mcg Once Daily in Patients With Chronic Obstructive Pulmonary Disease
Brief Summary: Patients with COPD experience exacerbations that are a major cause of morbidity. Exacerbations are associated with increased airway and systemic inflammation and those experiencing frequent exacerbations demonstrate increased inflammation in the stable state. Tiotropium has been shown to reduce exacerbation frequency and it might be postulated that this is due to a reduction in inflammation. The study will compare airway inflammation and exacerbation frequency in patients with COPD on tiotropium or placebo.


Options:
A: Criteria

* Patients with stable moderate to severe COPD and a smoking history of at least 10 pack years were eligible for inclusion in the study. Patients with significant diseases other than COPD were excluded as were patients with a recent history of myocardial infarction, history of malignancy, unstable or life-threatening cardiac arrhythmia, narrow-angle glaucoma, asthma or other allergic conditions. Patients treated with cromolyn, nedocromil, oral beta-adrenergics or unstable doses of oral corticosteroids were ineligible for inclusion in the study as were patients who had received previous treatment with tiotropium.
B: Inclusion Criteria:

* diagnosis of COPD,
* FEV1 \< 80% predicted,
* minimum 10 pack year smoking history

Exclusion Criteria:

* asthma,
* atopic disease,
* eosinophilia,
* history of malignancy,
* history of clinically significant pulmonary disease
C: Inclusion Criteria:

* History of COPD, FEV1 less than or equal to 65%, FEV1/FVC less than or equal 70%
* Smoking history greater than or equal to 10 pack years
* Not history of clinical diagnosis of asthma and/or atopy
* A history of thoracotomy with pulmonary resection
* Patients requiring the use of supplemental oxygen therapy for \>12 hours per day
* Chronic use of systemic corticosteroids in an unstable daily dose
* Patients with a recent history of myocardial infarction
* A known hypersensitivity to anticholinergic drugs
D: Inclusion criteria:

All subjects must have a diagnosis of Chronic Obstructive Pulmonary Disease (COPD) according to Global Initiative for Chronic Obstructive Pulmonary Disease (GOLD) guideline criteria:

post-bronchodilator Forced Expiratory Volume in one Second/Forced Vital Capacity (FEV1/FVC) ratio \< 70% (visit 1).

Subjects must be GOLD Stage II and have a post-bronchodilator FEV1 \>50% and \< 80% of predicted normal (visit 1). Subjects must be current or ex-smokers with a smoking history of \>=10 pack years.

Subjects must have a Medical Research Council (MRC) dyspnea score \>= 2.

Exclusion criteria:

Subjects who have been treated with maintenance medications for chronic respiratory disease within six months prior to screening.

Subjects with significant diseases other than COPD. Subjects on chronic systemic corticosteroids.

Subjects with any upper and/or lower respiratory tract infection or COPD exacerbation in the 6 weeks prior to the initial visit 1 or during the screening period prior to visit 3 Subjects with a recent (past 6 months) myocardial infarction, any unstable or life threatening cardiac arrhythmia requiring intervention or change in drug therapy during the last year; or who have been hospitalized for cardiac failure during the past year.

Answer: B