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Published in: BioDrugs 3/2018

01-06-2018 | Systematic Review

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

Authors: Robert J. Moots, Cinzia Curiale, Danielle Petersel, Catherine Rolland, Heather Jones, Eduardo Mysler

Published in: BioDrugs | Issue 3/2018

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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.
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Metadata
Title
Efficacy and Safety Outcomes for Originator TNF Inhibitors and Biosimilars in Rheumatoid Arthritis and Psoriasis Trials: A Systematic Literature Review
Authors
Robert J. Moots
Cinzia Curiale
Danielle Petersel
Catherine Rolland
Heather Jones
Eduardo Mysler
Publication date
01-06-2018
Publisher
Springer International Publishing
Published in
BioDrugs / Issue 3/2018
Print ISSN: 1173-8804
Electronic ISSN: 1179-190X
DOI
https://doi.org/10.1007/s40259-018-0283-4

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