A non-interventional study to explore actual asthma control status in real-life environment and to observe the efficacy after stepped-up to Symbicort SMART or various identical regimens.

The study will be implemented by screening asthmatic patients from respiratory clinics to identify those not optimally controlled and required stepping up the controllers to initiate, or to titrate dose of, ICS/LABA including Symbicort.

Inclusion Criteria:

• Asthma patient who was partly controlled or uncontrolled by previous controllers of ICS only, or low dose ICS plus either LABA, leukotriene modifier or theophylline; or ICS- naïve with severe and persist symptom based on physician's judgment
• According to GINA guideline, who need to step up the controller medications, and ICS/LABA to be prescribed based on physician's discretion

Exclusion Criteria:

• Patients aged not within limitation refer to label information of various product prescribed
• Patients who have taken oral corticosteroids within 4 weeks prior to enrollment
• Patients with contraindications to prescribed medication

Medical center