RT Journal Article SR Electronic T1 OP0205 LIVE ATTENUATED VACCINES IN PEDIATRIC RHEUMATIC DISEASES ARE SAFE: MULTICENTER, RETROSPECTIVE DATA COLLECTION JF Annals of the Rheumatic Diseases JO Ann Rheum Dis FD BMJ Publishing Group Ltd and European League Against Rheumatism SP 178 OP 179 DO 10.1136/annrheumdis-2019-eular.3770 VO 78 IS Suppl 2 A1 Yosef Uziel A1 Veronica Moshe Bergonzo A1 Beata Onozo A1 Andrea Kulcsar A1 Diana Tróbert-Sipos A1 Jonathan Akikusa A1 Gecilmara Salviato Pileggi A1 Despoina Maritsi A1 Ozgur Kasapcopur A1 Roubini Smerla A1 Donato Rigante A1 Erato Atasali A1 Mariana Rodrigues A1 Balahan Makay A1 Nico Wulffraat A1 Natasa Toplak A1 PReS working party of Vaccination -Study group YR 2019 UL http://ard.bmj.com/content/78/Suppl_2/178.2.abstract AB Background Common practice is to withhold vaccination with live-attenuated vaccines in patients with rheumatic diseases on high-dose DMARDs, glucocorticosteroids or biological agents, due to limited safety data, and the (theoretical) risk of introducing an infectious disease to the patient. Evidence for this approach is low. We collected data from pediatric rheumatologists who vaccinate these patients, to obtain additional safety data, which might update and revise this approach.Objectives To collect retrospective data in patients with JIA and other diseases who received live booster MMR or MMRV while on DMARDs, glucocorticosteroids or biological agents.Methods Data from 13 pediatric rheumatology centers in 10 countries were collected.Results 234 patients were reported; mean age 5± 2.7, 70% girls. 206 had JIA;. 46% oligoarticular, 36% polyarticular, 8% systemic, 5% SPA types, 5% JIA and uveitis. 48% of JIA patients were in remission on medication. Disease activity was low in 38%, high in 2%, moderate in 7%; 11 patients had juvenile dermatomyositis, 3 systemic and 2 localized scleroderma, 4 isolated idiopathic uveitis, 1 CINCA syndrome, 1 MKD, and 1 FMF.110 patients had MMR/V booster while on MTX; 3 reported mild side-effects of local skin reaction and pain, none had disease flare. 76 had booster while on MTX+ anti-TNF; 7 reported mild and transient adverse events of local skin reaction, fever and URTI. 39 had booster while on anti-TNF alone; 1 reported fever. 3 had booster while on tocilizumab, 7 on anakinra, and 5 on canakinumab. There was no relation between disease activity, type or duration, sex, age and outcome of vaccinations. No vaccine infection related to measles, rubella, mumps and varicella were reported.Conclusion This large, retrospective data collection demonstrates that live-attenuated booster vaccine is probably safe in children with rheumatic diseases, on immunosuppressive therapies. This strengthens the new PRES recommendation: “Vaccination of live-attenuated vaccines in patients on high-dose DMARD, high-dose glucocorticosteroids or biological agents can be considered on a case-by-case basis, weighing the risk of infections against the hypothetical risk of inducing infection through vaccination.” These data provide the basis for a large, prospective data collection study that is planned by the PReS vaccination study group. It will increase the current level of evidence for the safety of vaccinations in our pediatric rheumatology population.Disclosure of Interests Yosef Uziel: None declared, Veronica Moshe Bergonzo: None declared, Beata Onozo: None declared, Andrea Kulcsar: None declared, Diana Tróbert-Sipos : None declared, Jonathan Akikusa: None declared, Gecilmara Salviato Pileggi : None declared, Despoina Maritsi: None declared, Ozgur KASAPCOPUR: None declared, Roubini Smerla: None declared, Donato Rigante: None declared, Erato Atasali: None declared, Mariana Rodrigues: None declared, Balahan Makay Speakers bureau: Enzyvant, Novartis, Roche, Abbvie, Nico Wulffraat: None declared, Natasa Toplak: None declared