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Cost-Effectiveness Analyses, Costs and Resource Use, and Health-Related Quality of Life in Patients with Follicular
Neerav Monga1, Jamie Garside2, Binu Gurung3
1Global Market Access and Health Policy, Janssen Global Oncology, 19 Green Belt Dr., Toronto, ON, M3C 1L9, Canada. nmonga@its.jnj.com.
Background:
Follicular lymphoma (FL) and marginal zone lymphoma (MZL) are types of indolent non-Hodgkin lymphoma (NHL) that develop in the B lymphocytes (also known as B cells).
Objective:
The aim of this study was to conduct a comprehensive review of studies relating to cost effectiveness, costs and resource use, and health-related quality of life (HRQoL) in patients with FL or MZL.
Methods:
Three separate systematic reviews were conducted to identify all published evidence on cost effectiveness, costs and resource use, and HRQoL between 2007 and March 2017 using the MEDLINE®, MEDLINE in-process, E-pubs ahead of print (Ovid SP®), Embase (Ovid SP®), NHS EED, and EconLit databases. Select congress proceedings were also searched. Two systematic reviewers independently reviewed titles, abstracts, and full papers against eligibility criteria. Relevant data were extracted into bespoke data extraction templates (DETs) by a single systematic reviewer; these data were then validated for accuracy by a second reviewer against clean copies of the relevant publications.
Results:
A total of 25 cost-effectiveness studies (24 in FL; 1 in FL and MZL) met the eligibility criteria. Markov models were the most utilised cost-effectiveness model. US FL studies reported an incremental cost-effectiveness ratio (ICER) of $28,565/QALY for first-line rituximab-cyclophosphamide, vincristine, and prednisone (R-CVP) versus CVP, and $43,000/QALY for second-line obinutuzumab plus bendamustine (G + B) followed by G maintenance versus B. In the UK, ICERs were £1529-10,834/quality-adjusted life-year (QALY) for first-line rituximab + chemotherapy versus chemotherapy, £27,988/QALY for second-line G + B + G-maintenance versus B, and £62,653/QALY for second-line idelalisib versus chemotherapy and/or rituximab. Five costs/resource use and four HRQoL studies were identified in FL, and none in MZL. US mean lifetime costs in first-line patients ranged from $108,000 (rituximab) to $130,300 (rituximab-cyclophosphamide, doxorubicin hydrochloride, vincristine and prednisolone [CHOP]), and from £2185 (watch-and-wait) to £17,054 (chemotherapy) in the UK. In a multinational study, more rituximab-refractory patients receiving G + B + G-maintenance reported a meaningful improvement in total FACT-Lym scores compared with patients receiving B. In the UK, total FACT-Lym scores were meaningfully higher for newly diagnosed patients compared with patients with progression (136.04 vs. 109.7).
Conclusions And Relevance:
We found a small body of evidence of quality of life, and potentially cost-effective treatment options for FL; however, no evidence was reported on MZL specifically. The significant data gaps in knowledge in these diseases demonstrate a marked need for further studies.
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