Efficacy and Safety Outcomes for Originator TNF Inhibitors and Biosimilars in Rheumatoid Arthritis and Psoriasis Trials: A Systematic Literature Review

Moots, Robert J ORCID: 0000-0001-7019-6211, Curiale, Cinzia, Petersel, Danielle, Rolland, Catherine, Jones, Heather and Mysler, Eduardo (2018) Efficacy and Safety Outcomes for Originator TNF Inhibitors and Biosimilars in Rheumatoid Arthritis and Psoriasis Trials: A Systematic Literature Review. BIODRUGS, 32 (3). pp. 193-199.

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Abstract

Objective Regulatory approval of biosimilar versions of originator biotherapeutics requires that new biological products be highly similar to originator products, with no clinically meaningful differences in safety, purity, and potency. In some trials of biosimilars of tumor necrosis factor inhibitors for the treatment of rheumatoid arthritis (RA) and plaque psoriasis (PsO), pre-specified margins for efficacy and safety have been met, but differences in treatment responses between pivotal originator trials and biosimilar trials have been noted. The objective of this systematic review was to examine these differences. Methods Searches were conducted to identify comparative randomized clinical trials of approved or proposed biosimilars of adalimumab, etanercept, and infliximab. Results Of 83 publications identified, 16 publications were included for analysis (RA: originators, n = 5; biosimilars, n = 6; PsO: originators, n = 2; biosimilars, n = 3). American College of Rheumatology 20% response rates were higher among patients with RA receiving originator biologics and biosimilars in biosimilar trials than among patients receiving the originator biologics in pivotal trials. In etanercept studies in PsO, a difference was observed in Psoriasis Area and Severity Index 75% response rates between biosimilar and pivotal trials. Insufficient efficacy data were available from adalimumab and infliximab biosimilar studies in PsO to determine any differences in treatment responses between pivotal and biosimilar studies. Conclusions Observed differences in treatment response rates between pivotal originator trials and trials of originator biologics and their respective biosimilars may be attributable to fundamental differences in study design and/or baseline patient characteristics, which require further analysis.

Item Type:	Article
Uncontrolled Keywords:	Humans, Arthritis, Rheumatoid, Psoriasis, Tumor Necrosis Factor-alpha, Anti-Inflammatory Agents, Antirheumatic Agents, Treatment Outcome, Randomized Controlled Trials as Topic, Biosimilar Pharmaceuticals, Adalimumab, Infliximab, Etanercept
Depositing User:	Symplectic Admin
Date Deposited:	15 Aug 2018 10:03
Last Modified:	19 Jan 2023 01:28
DOI:	10.1007/s40259-018-0283-4
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3025026

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