Overview
An observational, ambispective cohort to learn about the disease progression of axial spondyloarthritis (axSpA) according to the changes from baseline in measures of disease activity, function, and imaging.
Description
This is an observational cohort study of Chinese patients (≥18 years of age) diagnosed with axSpA. Patients are followed at 4-6 month intervals. Data will be collected at baseline and at every follow-up time points. Primary outcomes are the structural damage measured with imaging(Conventional radiography, low-dose CT and MRI) and the disease activity measured with the Ankylosing Spondylitis Disease Activity Scale (ASDAS) and the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI). Secondary outcomes are inflammatory markers, Bath ankylosing spondylitis functional index (BASFI) and Bath ankylosing spondylitis metrology index (BASMI).
Eligibility
Inclusion Criteria:
- Patients aged 18 years or older and diagnosed with the Assessment of Spondyloarthritis International Society axial spondyloarthritis criteria.
Exclusion Criteria:
- Patients with serious disease in cardiovascular, kidney and blood and endocrine system; history of schizophrenia or epilepsy; pregnant or in lactation period.