POS0618 PERSISTENCE OF REMISSION AFTER TAPERING OF GOLIMUMAB IN INFLAMMATORY JOINT DISEASE (IJD)
Authors: A. Damiani, F. Bartoli, V. Gori, S. Bellando-Randone, G. Fiori, M. Matucci-Cerinic, S. Guiducci
Journal: Annals of the Rheumatic Diseases (2021)

Background: In refractory IJD, remission may be obtained with antiTNFa drugs and other biological disease modifying anti-rheumatic drugs (bDMARDs). The last EULAR recommendations suggest tapering of bDMARD when remission persists 1 . However, best timing and modality of tapering are uncertain and specific knowledge on patients’ characteristics associated to a better outcome is still lacking. Objectives: To evaluate the persistency of remission after increasing the interval between injections of Golimumab in a group of patients affected by rheumatoid arthritis (RA), psoriatic arthritis (PsA), ankylosing spondylitis (AS) and juvenile idiopathic arthritis (JIA) and to identify any variables associated to disease flare after tapering. Methods: Between 2011 and July 2020, 80 patients affected by RA, PsA, AS and JIA treated with Golimumab were enrolled. Their demographic and clinical data, including inflammation (ESR and cRP) and clinimetric indices (DAS28 or BASDAI), were collected at baseline and during the follow up visit (T1). In 22/80 patients that reached clinical remission at T1, the time between Golimumab injections has been prolonged (mean time between injection: 43.7 days); ESR and cRP, DAS28/BASDAI, and time since the start of the tapering (weeks) were evaluated in the next control visit (T2). Results: 80 patients were enrolled (32 male, mean age 50.6 years +/- 13.91), 34 AS, 33 PsA, 9 RA and 4 JIA. At baseline they have an active disease with a DAS 28 of 4.74+/-0.85 and a BASDAI of 5.23+/- 1.31. At T1, 60/80 patients were in remission (75%), with a mean DAS 28 of 1.84+/- 0.6 and an average BASDAI of 1.32+/-0.6, and 22/60 patients started drug tapering. At T2, 20/22 patients (91%) were in remission, (DAS 28 1.9+/-0.49, BASDAI of 0.8+/- 0, 67). A significantly higher BASDAI was observed at T1, even though in the range of absence of disease activity (2.2, +/- 0.28 vs 0.58, +/- 0.47; p &lt;0.001) in patients who, after extending the therapeutic interval (T1) were no longer in remission at T2. Patients with a flare of disease activity (2/22) were taken back to the 28 days window of Golimumab with a prompt recovery of disease remission. Out of the 38 patients maintained at the standard dose, 4 experienced a disease flare with necessity to switch or swope bDMARD, with a retention rate in this group of 90%. Difference of retention rate between patients on standard vs reduced dose was not statistically significative. Conclusion: Tapering of Golimumab was successful in 91% of the cases without flare. Moreover, the prolongation of the increase of the treatment window provided the same result as that obtained in patients that continued in the standard time window. This evidence suggests that the extension of the gap between Golimumab administrations may be feasible and safely applied in practice. References: [1]Smolen JS, Landewé RBM, Bijlsma JWJ, et al EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs: 2019 update Annals of the Rheumatic Diseases 2020;79:685-699. Disclosure of Interests: None declared