Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden

Abstract Background Human monoclonal antibody ustekinumab is a novel Crohn’s disease (CD) treatment blocking pro-inflammatory cytokines interleukin-12 and 23. The study’s objective was to assess cost-effectiveness of ustekinumab in moderate to severely active CD in Sweden. Methods A cost-effectivene...

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Main Authors: Amanda Hansson-Hedblom, Chrissy Almond, Fredrik Borgström, Indeg Sly, Dana Enkusson, Anders Troelsgaard Buchholt, Linda Karlsson
Format: Article
Language:English
Published: BMC 2018-08-01
Series:Cost Effectiveness and Resource Allocation
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12962-018-0114-y
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author Amanda Hansson-Hedblom
Chrissy Almond
Fredrik Borgström
Indeg Sly
Dana Enkusson
Anders Troelsgaard Buchholt
Linda Karlsson
author_facet Amanda Hansson-Hedblom
Chrissy Almond
Fredrik Borgström
Indeg Sly
Dana Enkusson
Anders Troelsgaard Buchholt
Linda Karlsson
author_sort Amanda Hansson-Hedblom
collection DOAJ
description Abstract Background Human monoclonal antibody ustekinumab is a novel Crohn’s disease (CD) treatment blocking pro-inflammatory cytokines interleukin-12 and 23. The study’s objective was to assess cost-effectiveness of ustekinumab in moderate to severely active CD in Sweden. Methods A cost-effectiveness model with an induction phase decision-tree structure and a maintenance phase Markov cohort structure was constructed. CD was represented by five health-states: remission, mild, moderate-severe, surgery and death. Ustekinumab was compared to adalimumab in patients who had failed conventional care, some of which had tried TNF-alpha-inhibitor(s) without experiencing treatment failure or side effects (“conventional care failure population”) and to vedolizumab in patients previously failing TNF-alpha-inhibitor treatment. Discontinuation probabilities, utilities and ustekinumab induction efficacy were sourced from phase-III trials. Maintenance and comparator efficacy came from network-meta and treatment-sequence analyses. Resource use and unit costs were derived from literature and validated by clinical experts. The analysis had a societal perspective, a life-time time-horizon, and 2-year treatment duration. The results robustness was tested in univariate and probabilistic sensitivity analyses. Cost-effectiveness was estimated using quality-adjusted life-years (QALYs). Results Ustekinumab dominated adalimumab in conventional care failure population (costs: − €6984, QALYs: + 0.232). In TNF-alpha-inhibitor failure population ustekinumab accrued 0.133 more QALYs than vedolizumab, yielding a €30,282 incremental cost-effectiveness ratio. Results were sensitive to decreasing the time horizon and increased treatment duration. At Swedish reference willingness-to-pay of €63,000 (SEK 600,000), ustekinumab had 94% probability of being cost-effective versus adalimumab, and 72% versus vedolizumab. Conclusions Results indicate ustekinumab dominates adalimumab in conventional care failure population, and is cost-effective versus vedolizumab in TNF-alpha-inhibitor failure population.
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spelling doaj.art-77378702b6df4fb88d92e17e7b5c63402022-12-21T19:42:52ZengBMCCost Effectiveness and Resource Allocation1478-75472018-08-0116111210.1186/s12962-018-0114-yCost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in SwedenAmanda Hansson-Hedblom0Chrissy Almond1Fredrik Borgström2Indeg Sly3Dana Enkusson4Anders Troelsgaard Buchholt5Linda Karlsson6Quantify Research ABBresMedQuantify Research ABBresMedJanssen-Cilag ABJanssen-Cilag ABQuantify Research ABAbstract Background Human monoclonal antibody ustekinumab is a novel Crohn’s disease (CD) treatment blocking pro-inflammatory cytokines interleukin-12 and 23. The study’s objective was to assess cost-effectiveness of ustekinumab in moderate to severely active CD in Sweden. Methods A cost-effectiveness model with an induction phase decision-tree structure and a maintenance phase Markov cohort structure was constructed. CD was represented by five health-states: remission, mild, moderate-severe, surgery and death. Ustekinumab was compared to adalimumab in patients who had failed conventional care, some of which had tried TNF-alpha-inhibitor(s) without experiencing treatment failure or side effects (“conventional care failure population”) and to vedolizumab in patients previously failing TNF-alpha-inhibitor treatment. Discontinuation probabilities, utilities and ustekinumab induction efficacy were sourced from phase-III trials. Maintenance and comparator efficacy came from network-meta and treatment-sequence analyses. Resource use and unit costs were derived from literature and validated by clinical experts. The analysis had a societal perspective, a life-time time-horizon, and 2-year treatment duration. The results robustness was tested in univariate and probabilistic sensitivity analyses. Cost-effectiveness was estimated using quality-adjusted life-years (QALYs). Results Ustekinumab dominated adalimumab in conventional care failure population (costs: − €6984, QALYs: + 0.232). In TNF-alpha-inhibitor failure population ustekinumab accrued 0.133 more QALYs than vedolizumab, yielding a €30,282 incremental cost-effectiveness ratio. Results were sensitive to decreasing the time horizon and increased treatment duration. At Swedish reference willingness-to-pay of €63,000 (SEK 600,000), ustekinumab had 94% probability of being cost-effective versus adalimumab, and 72% versus vedolizumab. Conclusions Results indicate ustekinumab dominates adalimumab in conventional care failure population, and is cost-effective versus vedolizumab in TNF-alpha-inhibitor failure population.http://link.springer.com/article/10.1186/s12962-018-0114-yCrohn’s diseaseUstekinumabAdalimumabVedolizumabCost-effectiveness
spellingShingle Amanda Hansson-Hedblom
Chrissy Almond
Fredrik Borgström
Indeg Sly
Dana Enkusson
Anders Troelsgaard Buchholt
Linda Karlsson
Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
Cost Effectiveness and Resource Allocation
Crohn’s disease
Ustekinumab
Adalimumab
Vedolizumab
Cost-effectiveness
title Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
title_full Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
title_fullStr Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
title_full_unstemmed Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
title_short Cost-effectiveness of ustekinumab in moderate to severe Crohn’s disease in Sweden
title_sort cost effectiveness of ustekinumab in moderate to severe crohn s disease in sweden
topic Crohn’s disease
Ustekinumab
Adalimumab
Vedolizumab
Cost-effectiveness
url http://link.springer.com/article/10.1186/s12962-018-0114-y
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