Jaworski, J, Matucci-Cerinic, M, Schulze-Koops, H et al. (6 more authors) (2019) Switch from reference etanercept to SDZ ETN, an etanercept biosimilar, does not impact efficacy, safety, and immunogenicity of etanercept in patients with moderate-to-severe rheumatoid arthritis: 48-week results from the phase III, randomized, double-blind EQUIRA study. Arthritis Research and Therapy, 21 (1). 130. ISSN 1478-6354
Abstract
Background
Sandoz etanercept (SDZ ETN; GP2015) is an etanercept biosimilar with equivalent efficacy and comparable safety and immunogenicity to reference etanercept (ETN) in patients with moderate-to-severe chronic plaque-type psoriasis.
Methods
EQUIRA was a phase III, double-blind study conducted in patients with moderate-to-severe rheumatoid arthritis and inadequate response to disease-modifying anti-rheumatic drugs. Eligible patients were randomized 1:1 to receive subcutaneous 50 mg SDZ ETN or ETN, once-weekly, for 24 weeks. At week 24, patients with at least moderate EULAR response in the SDZ ETN group continued SDZ ETN treatment, and those in the ETN group were switched to receive 50 mg SDZ ETN, for up to 48 weeks. Patients received concomitant methotrexate at a stable dose (10–25 mg/week) and folic acid (≥ 5 mg/week). Equivalence between SDZ ETN and ETN for change from baseline in disease activity score including 28 joint count C-reactive protein (DAS28-CRP) at week 24 (primary endpoint) and comparable safety and immunogenicity profile of SDZ ETN and ETN have previously been demonstrated at week 24. Herein, we present the 48-week results of the study after a single switch from ETN to its biosimilar at week 24.
Results
The least squares mean (standard error) change in DAS28-CRP from baseline up to week 48 was comparable between “continued SDZ ETN” (− 2.90 [0.12], n = 148) and “switched to SDZ ETN” (− 2.78 [0.13], n = 131) groups. The proportion of patients achieving EULAR good/moderate responses based on DAS28-erythrocyte sedimentation rate and ACR20/50/70 response rates were comparable between the two groups. The proportion of patients with at least one treatment-emergent adverse event was 42.9% in the “continued SDZ ETN” and 38.0% in the “switched to SDZ ETN” groups. Serious adverse events occurred in 4 patients in each of the two groups. After week 24, none of the patients in the switched group developed anti-drug antibodies (ADAs), while 4 patients in the continued SDZ ETN group had single-event, very low titer, non-neutralizing ADAs detected.
Conclusions
The 48-week results from the EQUIRA study demonstrate that switch from ETN to SDZ ETN in patients with moderate-to-severe rheumatoid arthritis does not impact the efficacy, safety, or immunogenicity of etanercept.
Trial registration
EudraCT number 2012-002009-23, Registered 19 April 2012—prospectively registered.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. |
Keywords: | Biosimilar; Etanercept; Rheumatoid arthritis; SDZ ETN; Switch; Tumor necrosis factor inhibitor |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Medicine and Health (Leeds) > School of Medicine (Leeds) > Institute of Rheumatology & Musculoskeletal Medicine (LIRMM) (Leeds) > Clinical Musculoskeletal Medicine (LIRMM) (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 11 Jun 2019 12:03 |
Last Modified: | 11 Jun 2019 12:16 |
Status: | Published |
Publisher: | BMC |
Identification Number: | 10.1186/s13075-019-1907-x |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:147118 |