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The goal of this observational study is to determine the prevalence of remission among adults with severe asthma, as well as the factors associated with remission in Thailand. The main question the study aims to answer is: What is the prevalence of remission among adults with severe asthma in Thailand? Participants will complete questionnaires on asthma symptoms and undergo pulmonary function testing and a blood test once.
This study is a cross-sectional study. Thai patients aged 18 years or older with severe asthma are included in the study. Participants will complete two questionnaires about asthma control: the Global Initiative for Asthma (GINA) and the Asthma Control Test (ACT), and will perform spirometry, a fractional exhaled nitric oxide (FeNO) test, and blood eosinophil counts (BEC).
Age
18 - No limit years
Sex
ALL
Healthy Volunteers
No
Start Date
January 1, 2026
Primary Completion Date
October 31, 2026
Completion Date
December 31, 2026
Last Updated
January 13, 2026
230
ESTIMATED participants
Global Initiative for Asthma (GINA) and Asthma Control Test (ACT) questionnaires
OTHER
Spirometry
DIAGNOSTIC_TEST
Fractional exhaled nitric oxide (FeNO) test
DIAGNOSTIC_TEST
Blood eosinophil count (BEC)
DIAGNOSTIC_TEST
Lead Sponsor
Thammasat University
NCT05691218
NCT06681545
Data Source & Attribution
This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.
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