Retention Rate and Safety of Biosimilar CT-P13 in Rheumatoid Arthritis: Data from the Korean College of Rheumatology Biologics Registry

Hyoun Ah Kim, Eunyoung Lee, Sun Kyung Lee, Yong Beom Park, Young Nam Lee, Hee Jung Kang, Kichul Shin

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Objective: The aim was to evaluate long-term drug retention, discontinuation, efficacy and safety of CT-P13 and reference infliximab in patients with rheumatoid arthritis (RA) enrolled in the Korean College of Rheumatology Biologics (KOBIO) registry. Methods: Patients included adults with RA who received CT-P13 or reference infliximab between December 2012 and December 2017. Drug retention, efficacy (Disease Activity Score in 28 joints [DAS28]–erythrocyte sedimentation rate [ESR] or DAS28–C-reactive protein [CRP] and American College of Rheumatology [ACR] core set measure), and adverse events (AEs) were assessed over 4-years’ follow-up. Results: Data from 199 RA patients (CT-P13: n = 147; reference infliximab: n = 52) were analyzed. Median treatment duration was 1.22 years for CT-P13 and 1.40 years for reference infliximab (p = 0.67). Overall, 82% of patients received first-line therapy. Drug retention of CT-P13 versus reference infliximab was comparable for the overall population (p = 0.84) and for first-line (p = 0.66) and subsequent treatment lines (p = 0.96). Treatment changes or discontinuations occurred in 65.2% of patients with CT-P13 and 69.6% with reference infliximab. The most common reason for treatment changes or discontinuing treatment was lack of efficacy (CT-P13: 31.9%; reference infliximab: 34.8%). CT-P13 demonstrated comparable improvements in DAS28-ESR, DAS28-CRP and ACR responses to reference infliximab. Overall, 19 grade 3 AEs were reported for CT-P13 and eight for reference infliximab. Conclusion: Long-term data from patients with RA treated in routine clinical practice in Korea showed that CT-P13 had a comparable drug retention rate to reference infliximab, with similar efficacy and an acceptable safety profile. identifier: NCT01965132.

Original languageEnglish
Pages (from-to)89-98
Number of pages10
Issue number1
Publication statusPublished - 2020 Feb 1

Bibliographical note

Funding Information:
Medical writing support (including development of a draft outline and subsequent drafts in consultation with the authors, assembling tables and figures, collating author comments, copyediting, fact checking and referencing) was provided by Julianna Solomons, PhD, at Aspire Scientific (Bollington, UK), and funded by Celltrion Healthcare Co., Ltd. (Incheon, Republic of Korea).

Funding Information:
This study was supported by Celltrion Healthcare Co., Ltd.

Publisher Copyright:
© 2019, The Author(s).

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Pharmacology
  • Pharmacology (medical)


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