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J Dermatolog Treat. 2013 Feb;24(1):25-33. doi: 10.3109/09546634.2012.661038. Epub 2012 Jun 5.

Psoriasis treatment patterns with etanercept and adalimumab in a United States health plan population.

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  • 1OptumInsight, Eden Prairie, MN, USA. benjamin.chastek@optum.com

Abstract

BACKGROUND:

A retrospective study utilizing administrative claims from a US commercial health plan was performed to examine etanercept and adalimumab treatment patterns among patients with psoriasis (PSO).

METHODS:

Biologic-naïve PSO patients initiating etanercept or adalimumab therapy between 18 January 2008 and 31 December 2008 were identified. Patients continuously enrolled in the health plan for 6 months before and ≥12 months after therapy initiation were followed until disenrollment from the plan or 31 December 2009. Persistence was defined as continuous use of index TNF blocker without a gap in therapy ≥60 days. Patients with gaps in index therapy ≥60 days were classified as discontinuing, switching, or restarting the index therapy.

RESULTS:

In total, 497 patients initiated etanercept and 330 the adalimumab therapy. Mean age for both groups was 43 years. Approximately 40-42% of patients were persistent on their index TNF blocker for 1 year. Among patients with a ≥60-day gap in therapy, discontinuation without restart or switch occurred in 37% of etanercept and 45% of adalimumab patients (p = 0.04). Differences in therapy restart or switching between the groups were not statistically significant.

CONCLUSIONS:

TNF-blocker therapy persistence is low among PSO patients in this health plan. More than one-third of patients restarted their index TNF blocker after a gap in therapy.

[PubMed - indexed for MEDLINE]
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