Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Phase IIIB, 12-Month, Double-blind, Double-dummy,Randomised, Parallel-group, Multicentre Exacerbation Study of SYMBICORT® pMDI 160/4.5 μg x 2 Actuations Twice-daily and 80/4.5 μg x 2 Actuations Twice-daily Compared to Formoterol Turbuhaler® 4.5 μg x 2 Inhalations Twice-daily in COPD Subjects
Brief Summary: The purpose of this study is to determine if SYMBICORT® delivered via a pressurized metered-dose inhaler, referred to as a pMDI, is effective in preventing COPD exacerbations.


Options:
A: Inclusion criteria:

* Patients with COPD and FEV1 \<60% of predicted normal and baseline (pre-bronchodilator) FEV1/FVC ratio \<70%.
* Current or ex-smokers with a smoking history of at least 10 pack-years.

Exclusion criteria:

* Diagnosis of other respiratory disorders (including asthma).
* Requirement for long term oxygen therapy.
B: Inclusion Criteria:

* A current clinical diagnosis of COPD with COPD symptoms for more than 2 years
* Current smoker or smoking history of 10 or more pack years (1 pack year = 20 cigarettes smoked per day for one year)
* A history of at least 1 COPD exacerbations requiring a course of steroids and/or antibiotics within 1-12 months before the first visit

Exclusion Criteria:

* A history of asthma at or after 18 years of age
* A history of allergic rhinitis at or after 18 years of age
* Subjects taking oral steroids
* Any significant disease or disorder that may jeopardize a subject's safety
C: Inclusion Criteria:

1. Diagnosis of COPD (moderate-to-severe as classified by the Global Initiative for Chronic Obstructive Lung Disease (GOLD) Guidelines, 2008) and:

* Smoking history of at least 10 pack-years
* Post-bronchodilator FEV1 \< 80% and ≥ 30% of the predicted normal value
* Post-bronchodilator FEV1/FVC (forced vital capacity) \< 70%

Exclusion Criteria:

1. Patients who have had a lower respiratory tract infection within 6 weeks prior to Visit 1
2. Patients with concomitant pulmonary disease
3. Patients with a history of asthma
4. Any patient with lung cancer or a history of lung cancer
5. Patients with a history of certain cardiovascular comorbid conditions
6. Patients with a known history and diagnosis of alpha-1 antitrypsin deficiency
7. Patients in the active phase of a supervised pulmonary rehabilitation program
8. Patients contraindicated for tiotropium or ipratropium treatment or who have shown an untoward reaction to inhaled anticholinergic agents Other protocol-defined inclusion/exclusion criteria may apply
D: Inclusion criteria:

* COPD patients with \> 10 pack years.
* Written informed consent.
* Able to complete a diary card.
* At least one of the following symptoms: chronic cough, chronic sputum production, frequent exacerbations, or dyspnoea at exertion.
* Postbronchodilator FEV1 below 90% confidence interval of predicted and postbronchodilator FEV1/FVC below 90% confidence interval of predicted.

Exclusion criteria:

* No oral corticosteroids 3 months prior to the study or maintenance treatment with corticostroids 6 months prior to the study.
* No history of asthma, lung diseases other than COPD, other diseases likely to interfere with the study.

Answer: B