Clinical efficacy of tofacitinib in active ankylosing spondylitis and dynamic changes in gut microbiota: an exploratory descriptive four-case series with 16S rRNA sequencing analysis
ObjectiveTo describe short-term clinical outcomes and safety of tofacitinib in four patients with active ankylosing spondylitis (AS) using real-world data, and to explore dynamic changes in gut microbiota before and after treatment.MethodsFour patients…