SAT0384 COMPARATIVE ANALYSIS OF FREQUENCY AND TIMING OF MINIMAL DISEASE ACTIVITY (MDA) ATTAINMENT IN EARLY AND LONG-TERM PSORIATIC ARTHRITIS (PSA) PATIENTS (PTS) AFTER BIOLOGICAL (B) DMARDS TREATMENT INITIATION IN CLINICAL PRACTICE: RUSSIAN PSA REGISTRY (RU-PSART) DATA
Authors: Elena Loginova, Tatiana Korotaeva, Anastasia Koltakova, Elena Gubar, Yulia Korsakova, Maria Sedunova, Igor Pristavsky, Irina Umnova, Irina Bondareva, Snezana Kudishina, Evgeny Nasonov
Journal: Annals of the Rheumatic Diseases (2019)

<h3>Background</h3> MDA is a treatment target of PsA. There is limited data about the frequency and the time of MDA achievement by the use of bDMARD therapy in early and long-term PsA in clinical practice. RU-PsART collected data from 25 rheumatology clinics in the Russian Federation. Objectives: to investigate the cumulative frequency and timing of MDA attainment in early and long-term PsA after starting bDMARDs in clinical practice. <h3>Methods</h3> 140 (M/F–77/63) bDMARD-naive PsA pts according to CASPAR criteria were included in the RU-PsART, after signing consent participation forms; median (Me) age 42 [Min 19-Max 73] years (yrs). All patients were divided into two groups based on PsA duration at the time of bDMARDs initiation: early PsA≤2 yrs (67pts) and long-term PsA&gt;2 yrs (73pts). All pts underwent standard clinical examinations of PsA and psoriasis activity and were treated with the following bDMARDs: Infliximab (26pts), Etanercept (20pts), Adalimumab (37pts), Ustekinumab (33pts), Golimumab (19pts), Sekukinumab (4pts), Certolizumab pegol (1pts). MDA was defined as ≥ 5 of the following criteria: tender joint count ≤1, swollen joint count ≤1, PASI≤1 or BSA≤3, patient pain global assessment VAS≤15, patient's global disease activity VAS≤20, HAQ≤0,5, enthesitis count ≤1. The cumulative frequency and the time of MDA attainment were calculated in both groups. Kaplan-Meier cumulative analysis, Me (CI95%), Min-Max,%, Breslow, Tarone-Ware, Log Rank tests were performed. All CI&gt;1, p&lt;0.05, were considered to indicate statistical significance. <h3>Results</h3> MDA has been achieved after bDMARDs initiation in 33 out of 67 (49%) pts with early PsA and in 23 out of 73 (32%) pts with long-term PsA. The Me time of MDA achievement was significantly shorter in early PsA in comparison to long-term PsA pts: 21 (CI 95%:13.1-28.9) months and 58 (CI95%:0-118.1) months of bDMARD therapy accordingly (p&lt;0.05 for all tests) (Fig.1). <h3>Conclusion</h3> Comparative analysis has shown that cumulative frequency of MDA achievement after bDMARDs initiation was significantly higher (49% vs 32%) and faster (21 vs 58 months) in early PsA than in long-term PsA. That confirms the benefit of bDMARD therapy initiation at the early stage of PsA. <h3>Disclosure of Interests</h3> Elena Loginova Speakers bureau: Novartis, Celgene Corporation, Biocad, Janssen, AbbVie Inc, Tatiana Korotaeva Speakers bureau: Novartis, Celgene Corporation, AbbVie Inc, Biocad, Janssen, Pfizer, UCB, Lilly, Anastasia Koltakova: None declared, ELENA GUBAR: None declared, Yulia Korsakova Speakers bureau: Celgene Corporation, Janssen, Maria Sedunova: None declared, Igor Pristavsky: None declared, Irina Umnova: None declared, Irina Bondareva: None declared, Snezana Kudishina: None declared, Evgeny Nasonov Speakers bureau: Pfizer, Inc., MSD, Novartis, AbbVie Inc., Celgen Corporation, Biocad, Janssen, UCB, Inc.