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OBJECTIVE: Treat-to-target approaches have proved to be effective in rheumatoid arthritis, but have not been studied in psoriatic arthritis (PsA). This study was undertaken to examine the cost-effectiveness of tight control (TC) of inflammation in early PsA compared to standard care. METHODS: Cost-effectiveness analyses were undertaken alongside a UK-based, open-label, multicenter, randomized controlled trial. Taking the perspective of the health care sector, effectiveness was measured using the 3-level EuroQol 5-domain, which allows for the calculation of quality-adjusted life-years (QALYs). Incremental cost-effectiveness ratios (ICERs) are presented, which represent the additional cost per QALY gained over a 48-week time horizon. Sensitivity analyses are presented assessing the impact of variations in the analytical approach and assumptions on the cost-effectiveness estimates. RESULTS: The mean cost and QALYs were higher in the TC group: £4,198 versus £2,000 and 0.602 versus 0.561. These values yielded an ICER of £53,948 per QALY. Bootstrapped uncertainty analysis suggests that the TC has a 0.07 probability of being cost-effective at a £20,000 threshold. Stratified analysis suggests that with certain costs being controlled, an ICER of £24,639 can be calculated for patients with a higher degree of disease severity. CONCLUSION: A tight control strategy to treat PsA is an effective intervention in the treatment pathway; however, this study does not find tight control to be cost-effective in most analyses. Lower drug prices, targeting polyarthritis patients, or reducing the frequency of rheumatology visits may improve value for money metrics in future studies.

Original publication

DOI

10.1002/acr.23293

Type

Journal article

Journal

Arthritis Care Res (Hoboken)

Publication Date

03/2018

Volume

70

Pages

462 - 468