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Cost-Effectiveness Analysis of Sequential Biologic Therapy with Ixekizumab Versus Secukinumab in the Treatment of Active Psoriatic Arthritis with Concomitant Moderate-to-Severe Psoriasis in the UK

Author

Listed:
  • Bernd Schweikert

    (ICON Plc)

  • Chiara Malmberg

    (ICON Plc)

  • Örjan Åkerborg

    (ICON Plc)

  • Gayathri Kumar

    (Eli Lilly and Company Ltd)

  • Debby Nott

    (Eli Lilly and Company Ltd)

  • Sandeep Kiri

    (Eli Lilly and Company Ltd)

  • Christophe Sapin

    (Eli Lilly and Company)

  • Susanne Hartz

    (Eli Lilly and Company Ltd)

Abstract

Background Interleukin-17A (IL-17A) antagonists are a recent innovation for treating psoriatic arthritis (PsA). There are currently no cost-effectiveness analyses (CEAs) comparing the IL-17A antagonists ixekizumab and secukinumab in PsA from a UK perspective. Objective We conducted a CEA from the UK National Health Service perspective to compare ixekizumab versus secukinumab in patients with PsA and concomitant moderate-to-severe plaque psoriasis. Methods A Markov model was developed based on the widely accepted York model. In biologic disease-modifying antirheumatic drug (bDMARD)-naïve patients, ixekizumab → ustekinumab → best supportive care (BSC) was compared with secukinumab → ustekinumab → BSC. For bDMARD-experienced patients, ixekizumab → BSC was compared with secukinumab → BSC. At the end of the bDMARD trial period, Psoriatic Arthritis Response Criteria (PsARC) responders continued to receive the bDMARD in the continuous treatment period. PsARC nonresponders and patients who ceased continuous treatment transitioned to the trial period of the next treatment. Results Ixekizumab was less costly and provided more quality-adjusted life-years (QALYs) than secukinumab in bDMARD-naïve and -experienced patients based on list prices, although cost savings and QALY gains were small to modest. In bDMARD-naïve patients, total costs were £155,455 compared with £155,530 for secukinumab (year 2017 values). Total QALYs were 8.127 versus 7.989. In bDMARD-experienced patients, the corresponding values were £140,051 versus £140,264 for total costs and 3.996 versus 3.875 for total QALYs. Conclusion Ixekizumab provided more QALYs at a marginally lower cost than secukinumab, and the results were most sensitive to changes in drug costs. Other factors, such as patient preferences for the number of injections and confidential price discounts, may be important considerations in clinical decision-making.

Suggested Citation

  • Bernd Schweikert & Chiara Malmberg & Örjan Åkerborg & Gayathri Kumar & Debby Nott & Sandeep Kiri & Christophe Sapin & Susanne Hartz, 2020. "Cost-Effectiveness Analysis of Sequential Biologic Therapy with Ixekizumab Versus Secukinumab in the Treatment of Active Psoriatic Arthritis with Concomitant Moderate-to-Severe Psoriasis in the UK," PharmacoEconomics - Open, Springer, vol. 4(4), pages 635-648, December.
    • Handle: RePEc:spr:pharmo:v:4:y:2020:i:4:d:10.1007_s41669-020-00202-1
    DOI: 10.1007/s41669-020-00202-1
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    References listed on IDEAS

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    1. Huiqin Yang & Dawn Craig & David Epstein & Laura Bojke & Kate Light & Ian Bruce & Mark Sculpher & Nerys Woolacott, 2012. "Golimumab for the Treatment of Psoriatic Arthritis," PharmacoEconomics, Springer, vol. 30(4), pages 257-270, April.
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    1. Chris Sampson’s journal round-up for 21st December 2020
      by Chris Sampson in The Academic Health Economists' Blog on 2020-12-21 12:00:05

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