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Cost-Effectiveness Analysis of Adalimumab for the Treatment of Uveitis Associated with Juvenile Idiopathic Arthritis

Research output: Contribution to journalArticle

Original languageEnglish
Number of pages10
JournalOphthalmology
Early online date16 Oct 2018
DOIs
DateAccepted/In press - 28 Sep 2018
DateE-pub ahead of print (current) - 16 Oct 2018

Abstract

Objectives

To investigate the cost-effectiveness of adalimumab in combination with methotrexate, compared with methotrexate alone, for the management of uveitis associated with Juvenile Idiopathic Arthritis (JIA-U).

Design

A cost-utility analysis based on a clinical trial and decision analytic model.

Participants

Children and adolescents aged 2 to 18 years with persistently active JIA-U, despite optimized methotrexate treatment for at least 12 weeks.

Methods

The SYCAMORE trial [ISRCTN10065623] of methotrexate (up to 25mg per week) with or without fortnightly administered adalimumab (20mg or 40mg, according to body weight) provided data on resource use (based on patient self-report and electronic records) and health utilities (from the Health Utilities Index questionnaire). Surgical event rates and long-term outcomes were based on data from a 10-year longitudinal cohort. A Markov model was used to extrapolate the effects of treatment based on visual impairment.

Main outcome measures

Medical costs to the National Health Service in the UK, utility of defined health states, quality-adjusted life years (QALY), and incremental cost per QALY.

Results

Adalimumab in combination with methotrexate resulted in additional costs of £39,316 with a 0.30 QALY gain compared with methotrexate alone, resulting in an incremental cost-effectiveness ratio of £129,025 per QALY gained. The probability of cost-effectiveness at a threshold of £30,000 per QALY was less than 1%. Based on a threshold analysis, a price reduction of 84% would be necessary for adalimumab to be cost-effective.

Conclusions

Adalimumab is clinically effective in JIA-U, however its cost-effectiveness is not demonstrated compared with methotrexate alone in the UK setting.

    Research areas

  • Anti-TNF, Juvenile Idiopathic Arthritis, uveitis, cost-effectiveness, economic evaluation

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  • Full-text PDF (accepted author manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Elsevier at https://www.sciencedirect.com/science/article/pii/S0161642018311461 . Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 469 KB, PDF document

    Licence: CC BY-NC-ND

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