Please select the eligibility criteria that correspond to the clinical trial below.
Title: Randomised Double Blind Placebo Controlled Trial of Effects of Long Term Low Dose Oral Erythromycin Therapy in Patients With Chronic Obstructive Pulmonary Disease
Brief Summary: The purpose of this study is to determine whether long term treatment with oral erythromycin is effective in the treatment of subjects with Chronic Obstructive Pulmonary Disease (COPD) by reducing the number of exacerbations and the degree of airway inflammation.


Options:
A: Inclusion Criteria:

* Clinical Diagnosis of COPD
* Clinically stable for 6 weeks
* Able to Swallow Tablets

Exclusion Criteria:

* Clinically significant respiratory disease other than COPD
* Women of child bearing age
* Patients receiving existing Medication which may interact adversely with trial drug
* History of clinically significant liver disease
B: Inclusion Criteria:

* Age \> 45 years Tracheotomy History of COPD demonstrated by pulmonary function tests Informed Consent

Exclusion Criteria:

* Allergy to macrolides Life expectancy \< 1 year
C: Inclusion Criteria:

* Patients \> 40 years of age, in our outpatient clinic with chronic cough and COPD (gold2-4)
* Chronic cough is defined as a cough \> 12 weeks duration, at least 12 weeks a year in 2 subsequent years.
* Analysed for bronchiectasis prior to participation by CT-thorax.

Exclusion Criteria:

* Prior history of asthma
* Use of i.v. or oral corticosteroids and or antibiotics for an exacerbation 3 weeks before inclusion
* Patients suffering from other relevant lung diseases.
* Clinically relevant abnormal laboratory values suggesting an unknown disease requiring further clinical evaluation.
* Liver disease, (ALAT and/or ASAT levels two or more times the upper limit of normal).
* Pregnancy or lactation.
* Use of macrolides the last 6 weeks prior to inclusion.
* Allergy or intolerance to macrolides.
* Other research medication started 2 months prior to inclusion.
* Prior randomisation in this study.
D: Inclusion Criteria:

* Diagnosis of COPD according to GOLD criteria (FEV1/FVC\<70%), classification into GOLD I (FEV1 70-100% predicted), GOLD II (FEV1 50-70% predicted), GOLD III (FEV1 30- 50% predicted) or GOLD IV (FEV1 ≤ 30% predicted)
* Age ≥ 18 years
* Three or more exacerbations of COPD in one year for which a course of prednisone and/or antibiotic therapy was started
* Clinically stable during 1 month. Patients have to be free of COPD exacerbation or respiratory tract infection within a month prior to involvement in the study and they should not have received a high dose of systemic glucocorticoids or antibiotics in this period
* Informed consent

Exclusion Criteria:

* Use of antibiotics or high dose of systemic steroids within a month prior to involvement in the study.
* Addition of inhalation steroids to the patient's therapy regimen, shortly before entering the study.
* Pregnant or lactating women.
* Allergy to macrolides.
* Liver disease (alanine transaminase and/or aspartate transaminase levels 2 or more times the upper limit of normal).
* Asthma, defined as episodic symptoms of airflow obstruction which is reversible with bronchodilators, assessed with lung function testing.
* Presence of a malignancy which is clinically active.
* Bronchiectasis.
* Malignancy of any kind for which the subject is under treatment or is being monitored as part of follow up after treatment.
* Heart failure.
* Use of drugs which can adversely interact with macrolides and for which therapeutic monitoring cannot be undertaken.

Answer: A