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Ruxolitinib for the Treatment of Myelofibrosis: A NICE Single Technology Appraisal

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Abstract

The National Institute for Health and Care Excellence (NICE) invited the manufacturer of ruxolitinib (Novartis) to submit clinical and cost-effectiveness evidence for ruxolitinib within its licensed indication (the treatment of disease-related splenomegaly or symptoms in adult patients with myelofibrosis), according to the Institute’s Single Technology Appraisal process. The Centre for Reviews and Dissemination and Centre for Health Economics at the University of York were commissioned to act as the independent Evidence Review Group (ERG). This article provides a description of the company submission, the ERG review and the resulting NICE guidance TA289 issued in June 2013. The ERG critically reviewed the evidence presented in the manufacturer’s submission and identified areas requiring clarification, for which the manufacturer provided additional evidence. The main clinical effectiveness data were derived from two phase III, multicentre, randomised controlled trials (RCTs): Controlled myelofibrosis study with oral JAK inhibitor treatment (COMFORT)-II compared ruxolitinib with best available therapy (BAT), and COMFORT-I compared ruxolitinib with placebo. These RCTs demonstrated that ruxolitinib confers significant benefits in terms of spleen size reduction and improvement in symptom burden. In the COMFORT-II trial, a reduction in spleen volume of ≥35 % was achieved in 28 % of ruxolitinib-treated patients compared with 0 % of patients in the BAT group (p < 0.001) at 48 weeks, and there was a mean change in spleen volume of −30.1 versus +7.3 % (p < 0.001). Ruxolitinib also provided significant improvements in myelofibrosis-associated symptoms and health-related quality-of-life compared with BAT and placebo. The ERG concluded that ruxolitinib appears to reduce splenomegaly and its associated symptoms, but that there was considerable uncertainty surrounding the manufacturer’s cost-effectiveness estimates due to limitations in the manufacturer’s model. The manufacturer’s model did not allow for disease progression, did not accurately capture symptomatic relief, had several implausible or unjustified assumptions, and there were several parameter choices that the ERG found sub-optimal. ERG sensitivity analyses found that nearly all plausible adjustments to the model reduced the cost effectiveness of ruxolitinib. It is very likely that the base-case incremental cost-effectiveness ratio of £73,980/quality-adjusted life-year presented by the manufacturer represents a best-case scenario. The NICE Appraisal Committee concluded that ruxolitinib was clinically effective, but could not be considered a cost effective use of National Health Service (NHS) resources for treating disease-related splenomegaly or symptoms in adults with myelofibrosis. Ruxolitinib is not recommended for the treatment of disease-related splenomegaly or symptoms in adult patients with primary myelofibrosis (also known as chronic idiopathic myelofibrosis), post-polycythaemia vera myelofibrosis and post-essential thrombocythaemia myelofibrosis in NICE TA289.

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Acknowledgments

This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment (HTA) Programme (project number 11/79/01) and will be published as part of a compendium of ERG articles in Health Technology Assessment. See the HTA programme website (http://www.hta.ac.uk) for further project information. This summary of the ERG report was compiled after the Appraisal Committee’s review and incorporates additional information and comment from the authors on the STA process and iterations of the NICE guidance not covered by the HTA report.

The views and opinions expressed herein are those of the authors and do not necessarily reflect those of the NICE or the Department of Health. The authors would like to thank Professor Stephen Palmer, Centre for Health Economics, for providing advice throughout the project.

This work is Crown copyright (UK).

Author contributions

Ros Wade reviewed the clinical evidence submitted and wrote most sections of the manuscript.

Micah Rose reviewed the cost-effectiveness evidence submitted and wrote the cost-effectiveness sections of the manuscript.

Aileen Rae Neilson reviewed the cost-effectiveness evidence submitted and provided comments on drafts of the manuscript.

Lisa Stirk reviewed the search strategies and provided comments on drafts of the manuscript.

Rocio Rodriguez-Lopez reviewed the search strategies and provided comments on drafts of the manuscript.

David Bowen provided clinical advice throughout the project and comments on drafts of the manuscript. In terms of conflicts of interest, Professor David Bowen has received payments from Novartis, although not directly related to ruxolitinib. He attended a Novartis UK Advisory Board in 2011 to discuss the management of myeloproliferative disease and the position of ruxolitinib within the current agents used. In addition he works closely with Novartis in other areas and has the following relationships with them: member of Trial Steering Committee for a global commercial phase III study (TELESTO) for which he is paid per hour; co-chair of SC for EUMDS Registry programme, an academic study funded by Novartis via the University of Nijmegen and for which no direct funding is received by Professor Bowen personally. In addition, he has attended Advisory Boards for various agents, for which he is paid honoraria.

Dawn Craig took responsibility for the cost-effectiveness evidence appraisal and contributed to all aspects of the review of the evidence submitted and provided comments on drafts of the manuscript.

Nerys Woolacott took overall managerial responsibility for the project, contributed to all aspects of the review of the evidence submitted and provided comments on drafts of the manuscript.

Ros Wade, Micah Rose, Aileen Rae Neilson, Lisa Stirk, Rocio Rodriguez-Lopez, Dawn Craig and Nerys Woolacott have no conflicts of interest to declare.

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Wade, R., Rose, M., Neilson, A.R. et al. Ruxolitinib for the Treatment of Myelofibrosis: A NICE Single Technology Appraisal. PharmacoEconomics 31, 841–852 (2013). https://doi.org/10.1007/s40273-013-0083-0

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