Skip to main content
Top
Published in: PharmacoEconomics 5/2024

Open Access 01-02-2024 | Systemic Therapy | Original Research Article

Budget Impact of Introducing Fixed-Duration Mosunetuzumab for the Treatment of Relapsed or Refractory Follicular Lymphoma After Two or More Lines of Systemic Therapy in the USA

Authors: Shih-Wen Lin, Sheila Shapouri, Hélène Parisé, Eric Bercaw, Mei Wu, Eunice Kim, Matthew Matasar

Published in: PharmacoEconomics | Issue 5/2024

Login to get access

Abstract

Objective

This study aimed to assess the budget impact of introducing fixed-duration mosunetuzumab as a treatment option for adult patients with relapsed or refractory follicular lymphoma after at least two prior systemic therapies and to estimate the total cumulative costs per patient in the USA.

Methods

A 3-year budget impact model was developed for a hypothetical 1-million-member cohort enrolled in a mixed commercial/Medicare health plan. Comparators were: axicabtagene ciloleucel, tisagenlecleucel, tazemetostat, rituximab plus lenalidomide, copanlisib, and older therapies (rituximab or obinutuzumab ± chemotherapy). Costs per patient comprised treatment-associated costs including the drug, its administration, adverse events, and routine care. Dosing and safety data were ascertained from respective package inserts and clinical trial data. Drug costs (March 2023) were estimated based on the average wholesale acquisition cost reported in AnalySource®, and all other costs were based on published sources and inflated to 2022 US dollars. Market shares were obtained from Genentech internal projections and expert opinion. Budget impact outcomes were presented on a per-member per-month basis.

Results

Compared with a scenario without mosunetuzumab, its introduction over 3 years resulted in a budget increase of $69,812 (1% increase) and an average per-member per-month budget impact of $0.0019. Among the newer therapies, mosunetuzumab had the second-lowest cumulative per patient cost (mosunetuzumab = $202,039; axicabtagene ciloleucel = $505,845; tisagenlecleucel = $476,293; rituximab plus lenalidomide = $263,520; tazemetostat = $250,665; copanlisib = $127,293) and drug costs, and its introduction only increased total drug costs by 0.1%. By year 3, the cumulative difference in the per patient cost with mosunetuzumab was −$303,805 versus axicabtagene ciloleucel, −$274,254 versus tisagenlecleucel, −$61,481 versus rituximab plus lenalidomide, −$48,625 versus tazemetostat, and $74,747 versus copanlisib. Older therapies were less costly with 3-year cumulative costs that ranged from $36,512 to $147,885.

Conclusions

Over 3 years, the estimated cumulative per patient cost of mosunetuzumab is lower than most available newer therapies, resulting in a small increase in the budget after its formulary adoption for the treatment of relapsed or refractory follicular lymphoma.
Appendix
Available only for authorised users
Literature
12.
go back to reference National Institute for Health and Care Excellence. Mosunetuzumab for treating relapsed or refractory follicular lymphoma [TA892]. National Institute for Health and Care Excellence,, London, UK. 2023. Available from: https://www.nice.org.uk/guidance/ta892. [Accessed 18 Aug 2023]. National Institute for Health and Care Excellence. Mosunetuzumab for treating relapsed or refractory follicular lymphoma [TA892]. National Institute for Health and Care Excellence,, London, UK. 2023. Available from: https://​www.​nice.​org.​uk/​guidance/​ta892. [Accessed 18 Aug 2023].
18.
24.
go back to reference Unpublished data on file, Genentech Inc., 2023 Unpublished data on file, Genentech Inc., 2023
44.
52.
go back to reference Schuster SJ, Sehn LH, Bartlett NL, Matasar M, Assouline S, Giri P, et al. Mosunetuzumab monotherapy continues to demonstrate durable responses in patients with relapsed and/or refractory follicular lymphoma after ≥2 prior therapies: 3-year follow-up from a pivotal phase II study. Blood. 2023;142:603. https://doi.org/10.1182/blood-2023-173692.CrossRef Schuster SJ, Sehn LH, Bartlett NL, Matasar M, Assouline S, Giri P, et al. Mosunetuzumab monotherapy continues to demonstrate durable responses in patients with relapsed and/or refractory follicular lymphoma after ≥2 prior therapies: 3-year follow-up from a pivotal phase II study. Blood. 2023;142:603. https://​doi.​org/​10.​1182/​blood-2023-173692.CrossRef
54.
56.
go back to reference Leonard JP, Trneny M, Offner F, Mayer J, Zhang H, Nowakowski GS, et al. Five-year results and overall survival update from the phase 3 randomized study augment: lenalidomide plus rituximab (R2) vs rituximab plus placebo in patients with relapsed/refractory indolent non-Hodgkin lymphoma. Blood. 2022;140(Suppl. 1):561–3. https://doi.org/10.1182/blood-2022-158631.CrossRef Leonard JP, Trneny M, Offner F, Mayer J, Zhang H, Nowakowski GS, et al. Five-year results and overall survival update from the phase 3 randomized study augment: lenalidomide plus rituximab (R2) vs rituximab plus placebo in patients with relapsed/refractory indolent non-Hodgkin lymphoma. Blood. 2022;140(Suppl. 1):561–3. https://​doi.​org/​10.​1182/​blood-2022-158631.CrossRef
57.
go back to reference Gribben JG, Ghione P, Palomba ML, Ray MD, Limbrick-Oldfield EH, Kanters S, et al. An updated comparison of clinical outcomes from 4-year follow-up of Zuma-5 (axicabtagene ciloleucel) and the international Scholar-5 external control cohort in relapsed/refractory follicular lymphoma. Blood. 2023;142(Suppl. 1):4869. https://doi.org/10.1182/blood-2023-186842.CrossRef Gribben JG, Ghione P, Palomba ML, Ray MD, Limbrick-Oldfield EH, Kanters S, et al. An updated comparison of clinical outcomes from 4-year follow-up of Zuma-5 (axicabtagene ciloleucel) and the international Scholar-5 external control cohort in relapsed/refractory follicular lymphoma. Blood. 2023;142(Suppl. 1):4869. https://​doi.​org/​10.​1182/​blood-2023-186842.CrossRef
58.
go back to reference Briggs A, Sculpher M, Claxton K. Decision modelling for health economic evaluation. Oxford: Oxford University Press; 2006.CrossRef Briggs A, Sculpher M, Claxton K. Decision modelling for health economic evaluation. Oxford: Oxford University Press; 2006.CrossRef
60.
62.
go back to reference Sehn LH, Chua N, Mayer J, Dueck G, Trněný M, Bouabdallah K, et al. Obinutuzumab plus bendamustine versus bendamustine monotherapy in patients with rituximab-refractory indolent non-Hodgkin lymphoma (GADOLIN): a randomised, controlled, open-label, multicentre, phase 3 trial. Lancet Oncol. 2016;17(8):1081–93. https://doi.org/10.1016/s1470-2045(16)30097-3.CrossRefPubMed Sehn LH, Chua N, Mayer J, Dueck G, Trněný M, Bouabdallah K, et al. Obinutuzumab plus bendamustine versus bendamustine monotherapy in patients with rituximab-refractory indolent non-Hodgkin lymphoma (GADOLIN): a randomised, controlled, open-label, multicentre, phase 3 trial. Lancet Oncol. 2016;17(8):1081–93. https://​doi.​org/​10.​1016/​s1470-2045(16)30097-3.CrossRefPubMed
63.
go back to reference Center for Drug Evaluation and Research (CDER). NDA/BLA multi‐disciplinary review and evaluation 213400 - Tazverik (tazemetostat). 2019. Center for Drug Evaluation and Research (CDER). NDA/BLA multi‐disciplinary review and evaluation 213400 - Tazverik (tazemetostat). 2019.
Metadata
Title
Budget Impact of Introducing Fixed-Duration Mosunetuzumab for the Treatment of Relapsed or Refractory Follicular Lymphoma After Two or More Lines of Systemic Therapy in the USA
Authors
Shih-Wen Lin
Sheila Shapouri
Hélène Parisé
Eric Bercaw
Mei Wu
Eunice Kim
Matthew Matasar
Publication date
01-02-2024
Publisher
Springer International Publishing
Published in
PharmacoEconomics / Issue 5/2024
Print ISSN: 1170-7690
Electronic ISSN: 1179-2027
DOI
https://doi.org/10.1007/s40273-024-01358-y

Other articles of this Issue 5/2024

PharmacoEconomics 5/2024 Go to the issue