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Subcutaneous methotrexate for symptomatic control of severe recalcitrant psoriasis: safety, efficacy, and patient acceptability

Authors Manalo IF, Gilbert KE, Wu JJ

Received 19 January 2015

Accepted for publication 10 March 2015

Published 5 May 2015 Volume 2015:5 Pages 65—70

DOI https://doi.org/10.2147/PTT.S58010

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Prof. Dr. Uwe Wollina


Video abstract presented by Iviensan F Manalo.

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Iviensan F Manalo,1 Kathleen E Gilbert,2 Jashin J Wu3

1Medical College of Georgia, Georgia Regents University, Augusta, GA, 2Indiana University School of Medicine, Indianapolis, IN, 3Department of Dermatology, Kaiser Permanente Los Angeles Medical Center, Los Angeles, CA, USA

Background:
Although oral methotrexate is an effective first-line traditional systemic therapy for psoriasis, the use of the subcutaneous form of methotrexate for the treatment of psoriasis has not been fully established.
Objective: This study is a literature review of the research related to the safety, efficacy, and patient acceptability of subcutaneous methotrexate for its application in the treatment of severe recalcitrant psoriasis.
Methods: Systematic literature searches were conducted of the PubMed, Ovid, and ClinicalTrials.gov databases.
Results: Only three relevant sources of literature were found studying subcutaneous methotrexate specifically in the context of psoriasis. Of these, only one clinical trial was found to directly study the use of subcutaneous methotrexate in psoriasis patients; however, results of this study have not been published. The other two literature sources involved a cost-effectiveness analysis and a literature review for subcutaneous methotrexate. Otrexup™ and Rasuvo™ are two particular single-use auto-injector modalities of subcutaneous methotrexate that are approved by the US Food and Drug Administration. The equivalents of Rasuvo available in countries outside of the USA are advertised as Metoject® or Metex®. Much more research has been conducted on the use of subcutaneous methotrexate in rheumatoid arthritis patients.
Conclusion: There is a lack of original evidence-based studies evaluating the use of subcutaneous methotrexate specifically for the treatment of psoriasis. Based on the more extensively researched data on the safety, efficacy, and patient acceptability of subcutaneous methotrexate in rheumatoid arthritis patients, its application for the treatment of moderate-to-severe psoriasis is promising. More evidence-based studies on psoriasis subjects are needed to explore the practical application of subcutaneous methotrexate as a treatment option for severe recalcitrant psoriasis.

Keywords: self-administration, MTX, rheumatoid arthritis, Otrexup™, Rasuvo™

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