Please select the eligibility criteria that correspond to the clinical trial below.
Title: N/A
Brief Summary: The purpose of this study is to evaluate the effect of two different maintenance doses of Symbicort Maintenance And Reliever Therapy (SMART) in adult asthmatic patients. A 6 month treatment period


Options:
A: Inclusion Criteria:

* Patients at out-patient clinics
* \>18 years with a minimum of 6 months documented history of persistent asthma who have used inhaled glucocorticosteroids for at least one month and have a history of use in rapid-acting B2 agonists for symptom relief

Exclusion Criteria:

* Asthma exacerbation within the last 14 days prior to study start
* subject aged \>40 years with a smoking history of \>10pack-years
* subjects with chronic obstructive lung disease or other significant respiratory disease
B: Inclusion Criteria:

* Diagnosis of asthma \< 3 months
* Prescribed daily use of glucocorticosteroids for at least 3 months prior to Visit 1

Exclusion Criteria:

* Smoking history \> 10 pack-years
* Asthma exacerbation requiring change in asthma treatment during the last 14 days prior to inclusion
* Any significant disease or disorder that my jeopardize the safety of the patient.

Additional inclusion and exclusion criteria will be evaluated by the investigator.
C: Inclusion Criteria:

* Clinical diagnosis of mild persistent asthma as defined by NHLBI/WHO 97; for at least 6 months;
* FEV1 ³ 75% of predicted normal value;
* Positive response to the reversibility test to b2 agonist, defined as an increase \> 12% in the FEV1 measured 30 minutes following 2 puffs (2x100mg) of inhaled Salbutamol spray, or positive methacholine challenge (PC20\<8mg/ml or PD20\<1 mg) within the previous 6 months;
* Stable asthma. Asthma is defined stable if none of the following occurred during the last 14 days of the run-in period: diurnal variation of more than 20% in PEF on 2 consecutive days; use of four or more inhalations of b2 agonist per day on two consecutive days; need the use of oral corticosteroids;

Exclusion Criteria:

* COPD as defined by the ERS - Consensus Statement;
* Patients with more than 10 packs/year of cigarettes history and current smokers;
* History of near fatal asthma and/or admission in intensive care unit because of asthma;
* One severe exacerbation during the run-in period;
* Three or more courses of oral corticosteroids or hospitalisation for asthma during the previous 1 year;
* Patients treated with more than 500 mcg/day of beclomethasone or equivalent for more than 6 months in the previous last year;
D: Inclusion Criteria:

* Diagnosed with asthma since at least 6 months prior to first visit
* Prescribed daily use of glucocorticosteroids for at least 3 months prior to first visit
* At least one asthma exacerbation more than one but less than twelve months prior to first visit

Exclusion Criteria:

* Respiratory infection affecting asthma within 30 days before first visit
* Use of oral, rectal, or parenteral glucocorticosteroids for within 30 days before first visit
* Any significant disease or disorder that may jeopardize the safety of the patient

Additional inclusion and exclusion criteria will be evaluated by the Investigator.

Answer: A