RT Journal Article SR Electronic T1 243 The pivotal role of intensive immunosuppressive therapy in the management of systemic lupus erythematosus associated with pulmonary arterial hypertension JF Lupus Science & Medicine JO Lupus Sci & Med FD Lupus Foundation of America SP A111 OP A111 DO 10.1136/lupus-2017-000215.243 VO 4 IS Suppl 1 A1 J Zhao A1 Q Wang A1 J Qian A1 Z Tian A1 Y Liu A1 M Li A1 X Zeng YR 2017 UL http://lupus.bmj.com/content/4/Suppl_1/A111.1.abstract AB Background and aims Immune and inflammatory mechanisms could play a significant role in pulmonary arterial hypertension (PAH) genesis and progression, especially in patients with systemic lupus erythematosus (SLE). Immunosuppressive therapy should be better evaluated in this setting. We reviewed the clinical outcomes of intensive immunosuppressive therapy with or without target therapy in SLE associated PMethods This single-centre cohort study enrolled 126 consecutive patients with SLE-PAH who visited our referral centre in China between May 2006 and December 2015. Baseline demographics, clinical features, laboratory results, haemodynamic assessments and management were analysed. Kaplan-Meier curves and Cox proportional hazards regression analysis were used toevaluate the role of intensive immunosuppressive therapy.Results ALL patients received intensive immunosuppressive therapy including combination of high-dose glucocorticosteroids and first-line immunosuppressants, such as cyclophosphamide, mycophenolate and calcineurin Inhibitors. Eighty-two (65.1%) patients received target therapy at baseline. Survival analysis indicated that responders had a better survival than nonresponders in both with and without target therapy group (Figure 1). Patients with a shorter SLE disease duration (p=0.009) and better baseline pulmonary hemodynamics (mean pulmonary arterial pressure, pulmonary vascular resistance and Cardiac index, p<0.001) were more likely to benefit from immunosuppressive therapy (Table 1).Abstract 243 Table 1 Comparison of clinical characteristics in responders and nonresponders to immunosuppressive therapyAbstract 243 Figure 1 Survival of patients with SLE-PAH treated with intensiveimmunosuppressive therapy with or without PAH-target therapyConclusions Intensive immunosuppressive therapy markedly improved the long-term outcomes of SLE patients with PAH, especially in the early stage of PAH.