ArticleRheumatology and therapy2023
Outcomes Following Adalimumab Bio-originator to Biosimilar Switch-A Comparison Using Real-world Patient- and Physician-Reported Data in European Countries.
Article in Rheumatology and therapy, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 5 citations in OpenAlex.
- Defining a Framework for Sustainable Global Biosimilars Markets Using Findings from a Targeted Literature Review.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2025Review
- Patient Experience with the SensoReadyPatient preference and adherence · 2024Article
- Biosimilars for Rheumatoid Arthritis: Riding the 2023 Wave [Podcast].Open access rheumatology : research and reviews · 2023Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe aim of this work is to compare real-world outcomes of patients with rheumatoid arthritis (RA) receiving adalimumab (ADA) bio-originator (non-switchers) to those who had switched from ADA bio-originator to an ADA biosimilar (switchers) on the basis of the hypothesis that these outcomes would differ.
methodsData were drawn from the Adelphi RA Disease Specific Programme™, a point-in-time survey of physicians and their patients in Europe (France, Germany, Italy, Spain, UK) in 2020. Physicians completed a questionnaire for their next ten adult patients with RA, followed by four additional patients who had switched from ADA bio-originator to an ADA biosimilar (switchers). Physician- and patient-reported outcomes (PROs) for switchers and non-switchers were compared by propensity score matching.
resultsThree hundred and three rheumatologists provided data for 160 non-switchers and 225 switchers, 140 patients provided data; 51 non-switchers, 89 switchers. According to physician-reported disease activity, non-switchers were more likely to improve on their current ADA treatment than switchers (68%, n = 108 vs. 26%, n = 59 p < 0.001) and less likely to worsen (1%, n = 2 vs. 9%, n = 20; p < 0.01). Physician-reported patient adherence was significantly lower amongst switchers versus non-switchers (0.66 vs. 0.78, respectively; p = 0.04). More non-switchers than switchers were reported by their physicians to be consistent in taking their RA medicine (p < 0.001). Compared with non-switchers, PRO measures indicated quality of life was worse (EQ-5D Visual Analogue Scale: 62.9 vs. 71.9; p < 0.001) and activity impairment was greater (Work Productivity Activity Index: 31.0 vs. 24.4; p = 0.02) for switchers, with trends for poorer health status and greater pain.
conclusionsNon-medical switching in RA treatment may lead to unforeseen outcomes that should be considered by health decision-makers.
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