As-needed Budesonide/Formoterol Turbuhaler in Stepping Down Period

  • End date
    Dec 30, 2022
  • participants needed
  • sponsor
    Hat Yai Medical Education Center
Updated on 27 February 2022
fractional exhaled nitric oxide
eosinophil count


This study will evaluate the efficacy of as-needed Budesonide/formoterol Turbuhaler 160/4.5 g/d in the period of step down in well controlled asthmatic patient comparing with standard maintenance therapy in step-2 management in asthma guildeline which is low dose inhaled corticosteroid.


The study will measure the efficacy of as-needed low dose ICS/ LABA in well controlled asthmatic patient comparing with low dose ICS in step down circumstance.

Condition Asthma
Treatment Budesonide/Formoterol Fumarate 160 MCG-4.5 MCG Inhalation Powder, Budesonide 200Mcg Inhalation Powder
Clinical Study IdentifierNCT04215848
SponsorHat Yai Medical Education Center
Last Modified on27 February 2022


Yes No Not Sure

Inclusion Criteria

Patients who have been diagnosed as asthma at least 6 months
Patients who have well controlled asthma by ACT > 23 and ACQ-7 < 0.75 at least 12 weeks with using budesonide/formoterol (160/4.5 g/d) twice daily
Patient who not be taking oral bronchodilator such as montelukast, theophylline, doxophylline but accept for taking anti histamine and intranasal steroid
Patients who able to do spirometry without contraindication

Exclusion Criteria

History of using systemic steroid previous 12 week and respiratory infection History of pulmonary tuberculosis with residual lung lesion by chest radiograph recent serious medical condition such as myocardial infarction, stroke, pneumonia etc
History smoking less than 10 pack-years or be smoking
History of asthma exacabation previous 12 week
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