THU0409 PATTERN AND INFLUENTIAL FACTORS IN PROMOTING TREAT-TO-TARGET (T2T) FOR FOLLOW-UP ANKYLOSING SPONDYLITIS (AS) PATIENTS WITH A RHEUMATOLOGIST-PATIENT INTERACTIVE SMART SYSTEM OF DISEASE MANAGEMENT (SSDM): A COHORT STUDY FROM CHINA

Background: Ankylosing Spondylitis Disease Activity Score (ASDAS) is adopted to evaluate the degree of disease activity and the inflammatory response in AS patients. ASDAS score ≤ 1.3 represents inactive disease status and achievement of T2T. Objectives: To evaluate the patterns of T2T and related influential factors among AS patients after applying SSDM in the real world. Methods: SSDM is a mobile application for disease management. Patients were trained to master SSDM by healthcare professionals and to conduct ASDAS self-assessments. Patients were also required for repeating self-evaluation after leaving the hospital. After entry by patients, data can synchronized to the SSDM terminal of authorized rheumatologists. Results: From Jan 2015 to Jan 2019, 667 AS patients across China were followed up for more than 6 months through SSDM. The results at baseline and in final follow up were summarized in Table 1. The rate of T2T achievers were 28.49% (190/667) at baseline, and improved significantly to 41.38% (276/667) after 6 months follow up, p Conclusion: Significant improvement was observed under applying SSDM through empowering AS patients. After proactive disease management via SSDM for more than 6 months, Patients with ASDAS≤1.3 score at baseline had a significantly higher retention rate of disease activity. The patients who performed more self-assessments through SSDM had lower probability of relapse and higher rate of T2T. SSDM is a valuable tool for long term follow-up through empowering patients. Disclosure of Interests: None declared