Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Clinical Study Comparing Symbicort® 'as Needed' With Terbutaline 'as Needed' and With Pulmicort® Twice Daily Plus Terbutaline 'as Needed' in Adult and Adolescent Patients With Asthma.
Brief Summary: The purpose of this study is to test if Symbicort® (budesonide/formoterol) Turbuhaler® is effective in treating asthma when used 'as needed' in patients with milder asthma. The efficacy of Symbicort® 'as needed' will be compared with: 1) terbutaline Turbuhaler® 'as needed' and with 2) Pulmicort (budesonide) Turbuhaler® twice daily plus terbutaline Turbuhaler® 'as needed'.


Options:
A: INCLUSION CRITERIA 1. Provision of informed consent prior to any study specific procedures. For patients under-age, signed informed consent from both the patient and the patient's parent/legal guardian is required 2. Male or Female, ≥12 years of age 3. Documented diagnosis of asthma for at least 6 months prior to Visit 1 4. Patients who are in need of Step 2 treatment according to Global Initiative for Asthma guidelines 5. Patients treated with 'as needed' inhaled short-acting bronchodilator(s) only should have pre-bronchodilator Forced Expiratory Volume in one second (FEV1) ≥ 60 % of Predicted Normal (PN) and post-bronchodilator FEV1 ≥ 80 % PN 6. Patients treated with low stable dose of inhaled corticosteroid or leukotriene antagonist in addition to 'as needed' use of inhaled short-acting bronchodilator(s) should have pre-bronchodilator FEV1 ≥80 % PN 7. Patients should have reversible airway obstruction 8. To be randomized patients must have used Bricanyl Turbuhaler 'as needed' on at least 3 separate days during the last week of the run in period. EXCLUSION CRITERIA 1. Patient has a history of life-threatening asthma including intubation and intensive care unit admission 2. Patient has had an asthma worsening requiring change in treatment other than inhaled short-acting bronchodilator(s) within 30 days prior to Visit 1 or between Visits 1 and 2; or a treatment other than Bricanyl Turbuhaler from Visit 2 until randomization 3. Patient has required treatment with oral, rectal or parenteral glucocorticosteroids (GCS) within 30 days and/or depot parenteral GCS within 12 weeks prior to Visit 1 4. Smoker (current or previous) with a smoking history of ≥ 10 pack years 5. Pregnancy, breast-feeding or planned pregnancy during the study.
B: Inclusion Criteria:

1. Provision of informed consent prior to any study specific procedures. For patients under-age, signed informed consent from both the patient and the patient's parent/legal guardian is required
2. Male or Female, ≥12 years of age
3. Documented diagnosis of asthma for at least 6 months prior to Visit 1
4. Patients who are in need of GINA step 2 treatment
5. Patients treated with a short acting inhaled bronchodilator(s) only should have pre-bronchodilator FEV1 ≥ 60 % of predicted normal (PN) and post-bronchodilator FEV1 ≥ 80 % PN
6. Patients treated with low stable dose of ICS or leukotriene antagonists in addition to short acting inhaled bronchodilator(s) should have pre-bronchodilator FEV1 ≥80 % PN
7. Patients should have reversible airway obstruction
8. To be randomized patients must have used Bricanyl Turbuhaler as needed on at least 3 separate days during the last week of the run in period

Exclusion Criteria:

1. Patient has a history of life-threatening asthma including intubation and intensive care unit admission
2. Patient has had an asthma worsening requiring change in treatment other than short acting inhaled bronchodilator(s) within 30 days prior to Visit 1 and from Visit 1 until randomization
3. Patient has required treatment with oral, rectal or parenteral GCS within 30 days and/or depot parenteral GCS within 12 weeks prior to Visit 1
4. Current or previous smoker with a smoking history of ≥ 10 pack years
5. Pregnancy, breast-feeding or planned pregnancy during the study
C: Inclusion Criteria:

* Diagnosis of asthma according to the Global Initiative for Asthma guidelines (GINA) 2007 with a documented history of at least 6 months duration.
* Reversible airway obstruction, defined as an increase in FEV1 ≥12% relative to baseline for all patients 15-30 minutes after inhalation of in total 2 x 0.4 mg terbutaline Turbuhaler
* Prescribed use of inhaled glucocorticoid steroid (GCS) (any brand) for at least 12 weeks.

Exclusion Criteria:

* Respiratory infection affecting the asthma, as judged by the investigator, within 4 weeks.
* Intake of oral, rectal or parenteral GCS within 4 weeks and/or depot parenteral GCS within 12 weeks.
D: Inclusion Criteria:

* Physician-diagnosed asthma for at least previous 12 months.
* Able to perform reproducible spirometry.
* Baseline FEV1≥70% of predicted.
* Asthma confirmed either by:

  * Beta-agonist reversibility to 4 puffs albuterol ≥ 12% OR
  * Methacholine PC20 ≤ 16 mg/ml
* At least 1 of the following indications for chronic controller therapy:

  * Asthma Symptoms \> 2 days/week OR
  * Nocturnal Asthma Symptoms \> 2 nights/month OR
  * Short-acting beta-agonist use for symptom control \> 2 days/week
* For participants ≥18 years of age: Ability to provide informed consent. For participants under 18 years of age: Ability to provide verbal or written assent and ability of parent to provide informed consent.
* Willingness, if female and able to conceive, to utilize one medically-acceptable form of contraception.

Exclusion Criteria:

* Chronic inhaled or oral corticosteroid therapy.
* Use of inhaled or oral corticosteroid therapy within 6 weeks.
* New allergen immunotherapy within the past 3 months or anticipated changes to an ongoing immunotherapy regimen.
* Use of omalizumab within 3 months.
* History of:

  * bladder-neck obstruction, urinary retention or benign prostatic hyperplasia
  * narrow angle glaucoma
  * significant cardiovascular disorders and arrhythmias
  * life-threatening asthma requiring treatment with intubation or mechanical ventilation within the past 5 years
* Respiratory tract infection within past 6 weeks.
* History of smoking within the past 1 year, or \> 10 pack-years total if ≥ 18 years of age, or \> 5 pack-years total if \< 18 years of age.
* Chronic diseases or medical conditions (other than asthma) that could put the participant at risk by participation, e.g. chronic diseases of the lung (other than asthma), heart, liver, kidney, endocrine or nervous system, or immunodeficiency.

Answer: A