Randomised study of PF-06410293, an adalimumab (ADL) biosimilar, compared with reference ADL for the treatment of active rheumatoid arthritis: results from weeks 26–52, including a treatment switch from reference ADL to PF-06410293

ObjectiveTo investigate the efficacy, safety, immunogenicity and pharmacokinetics of biosimilar adalimumab (ADL) PF-06410293 (ADL-PF; adalimumab-afzb) versus EU-sourced reference ADL (ADL-EU) in patients with active rheumatoid arthritis (RA) on longer-term treatment and after being switched from ADL...

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Published in:Rheumatic & musculoskeletal diseases open 2021-04, Vol.7 (2), p.e001578
Main Authors: Fleischmann, Roy M, Alvarez, Daniel F, Bock, Amy E, Cronenberger, Carol, Vranic, Ivana, Zhang, Wuyan, Alten, Rieke
Format: Article
Language:English
Subjects:
Biological products
Clinical medicine
Disease
Drug dosages
FDA approval
Monoclonal antibodies
Narcotics
Patients
Rheumatoid Arthritis
TNF inhibitors
Tumor necrosis factor-TNF
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Summary:ObjectiveTo investigate the efficacy, safety, immunogenicity and pharmacokinetics of biosimilar adalimumab (ADL) PF-06410293 (ADL-PF; adalimumab-afzb) versus EU-sourced reference ADL (ADL-EU) in patients with active rheumatoid arthritis (RA) on longer-term treatment and after being switched from ADL-EU to ADL-PF.MethodsIn this multinational, double-blind study, patients with active RA were initially randomised to ADL-PF or ADL-EU for 26 weeks (treatment period (TP) 1). At the start of TP2 (weeks 26–52), patients in the ADL-EU arm were blindly re-randomised 1:1 to remain on ADL-EU (ADL-EU/ADL-EU; n=135) or switched to ADL-PF (ADL-EU/ADL-PF; n=134); patients receiving ADL-PF continued blinded treatment (ADL-PF/ADL-PF; n=283).ResultsThe American College of Rheumatology 20% improvement (ACR20) response rates were comparable between treatment groups at all visits during TP2. At week 52, ACR20 response rates were 82.7% (ADL-PF/ADL-PF), 79.3% (ADL-EU/ADL-EU) and 84.3% (ADL-EU/ADL-PF). Other measures of deep response (ACR50/70, ACR/EULAR-defined remission, EULAR good response, and Disease Activity Score in 28 Joints Based on High-Sensitivity C-Reactive Protein
ISSN:2056-5933
2056-5933
DOI:10.1136/rmdopen-2021-001578