Safety and effectiveness of abatacept in juvenile idiopathic arthritis: results from the PRINTO/PRCSG registry

Daniel J Lovell (Corresponding Author), Nikolay Tzaribachev, Michael Henrickson, Gabriele Simonini, Thomas A Griffin, Ekaterina Alexeeva, John F Bohnsack, Andrew Zeft, Gerd Horneff, Richard K Vehe, Valda Staņēviča, Stacey Tarvin, Maria Trachana, Ana Quintero Del Río, Adam M Huber, Daniel Kietz, Ilonka Orbán, Jason Dare, Ivan Foeldvari, Pierre QuartierAlyssa Dominique, Teresa A Simon, Alberto Martini, Hermine I Brunner, Nicolino Ruperto

Research output: Contribution to journalArticlepeer-review

Abstract

OBJECTIVE: The aim of this study was to report the interim 5-year safety and effectiveness of abatacept in patients with JIA in the PRINTO/PRCSG registry.

METHODS: The Abatacept JIA Registry (NCT01357668) is an ongoing observational study of children with JIA receiving abatacept; enrolment started in January 2013. Clinical sites enrolled patients with JIA starting or currently receiving abatacept. Eligible patients were assessed for safety (primary end point) and effectiveness over 10 years. Effectiveness was measured by clinical 10-joint Juvenile Arthritis Disease Activity Score (cJADAS10) in patients with JIA over 5 years. As-observed analysis is presented according to the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) guidelines.

RESULTS: As of 31 March 2020, 587 patients were enrolled; 569 are included in this analysis (including 134 new users) with 1214.6 patient-years of safety data available. Over 5 years, the incidence rate (IR) per 100 patient-years of follow-up of serious adverse events was 5.52 (95% CI: 4.27, 7.01) and of events of special interest was 3.62 (95% CI: 2.63, 4.86), with 18 serious infections [IR 1.48 (95% CI: 0.88, 2.34)]. As early as month 3, 55.9% of patients achieved cJADAS10 low disease activity and inactive disease (20.3%, 72/354 and 35.6%, 126/354, respectively), sustained over 5 years. Disease activity measures improvement over 5 years across JIA categories.

CONCLUSION: Abatacept was well tolerated in patients with JIA, with no new safety signals identified and with well-controlled disease activity, including some patients achieving inactive disease or remission.

TRIAL REGISTRATION: Clinicaltrials.gov, NCT01357668.

Original languageEnglish
Pages (from-to)SI195-SI206
JournalRheumatology
Volume63
Issue numberSI2
DOIs
Publication statusPublished - 1 Sept 2024

Keywords*

  • adolescent rheumatology
  • biological therapies
  • DMARDs
  • juvenile idiopathic arthritis
  • paediatric/juvenile rheumatology

Field of Science*

  • 3.2 Clinical medicine

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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