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Lim EH, Lim A, Khara JS, Cheong J, Fong J, Sivanesan S, Griffiths M, New E, Lee SC. Cost-effectiveness analysis of add-on pertuzumab to trastuzumab biosimilar and chemotherapy as neoadjuvant treatment for human epidermal growth receptor 2-positive early breast cancer patients in Singapore. Expert Rev Pharmacoecon Outcomes Res 2024; 24:413-426. [PMID: 38289042 DOI: 10.1080/14737167.2023.2295474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 12/10/2023] [Indexed: 02/16/2024]
Abstract
OBJECTIVES The Asian PEONY trial showed that add-on pertuzumab to trastuzumab and chemotherapy significantly improved pathological complete response in the neoadjuvant treatment of patients with human epidermal growth factor receptor 2-positive (HER2+) early breast cancer (EBC). This study evaluated the cost-effectiveness of pertuzumab as an add-on therapy to trastuzumab and chemotherapy for neoadjuvant treatment of patients with HER2+ EBC in Singapore. METHODS A six-state Markov model was developed from the Singapore healthcare system perspective, with a lifetime time horizon. Model outputs were: costs; life-years (LYs); quality-adjusted LYs (QALYs); incremental cost-effectiveness ratios (ICERs). Sensitivity/scenario analyses explored model uncertainties. RESULTS The base case projected the addition of pertuzumab to be associated with improved outcomes by 0.277 LYs and 0.271 QALYs, increased costs by S$1,387, and an ICER of S$5,121/QALY. The ICER was most sensitive to the pCR rate, and the probabilistic sensitivity analysis showed that add-on pertuzumab had an 81.3% probability of being cost-effective at a willingness-to-pay threshold of S$45,000/QALY gained. CONCLUSIONS This model demonstrated that the long-term clinical impact of early pertuzumab use, particularly the avoidance of metastatic disease and thus avoidance of higher costs and mortality rates, make neoadjuvant pertuzumab a cost-effective option in the management of patients with HER2+ breast cancer in Singapore.
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Affiliation(s)
- Elaine Hsuen Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore
| | - Andrew Lim
- Asia-Pacific Evidence Development, Costello Medical Singapore Pte Ltd, Singapore, Singapore
| | | | - John Cheong
- Market Access, Roche Singapore Pte Ltd, Singapore, Singapore
| | - Jek Fong
- Market Access, Roche Singapore Pte Ltd, Singapore, Singapore
| | | | | | - Emma New
- Health Economics, Costello Medical Consulting Ltd, London, UK
| | - Soo Chin Lee
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
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Yano Y, Tada R, Hamano N, Haruta K, Kobayashi T, Sato M, Kikkawa Y, Endo-Takahashi Y, Nomizu M, Negishi Y. Development of a concise and reliable method for quantifying the antibody loaded onto lipid nanoparticles modified with Herceptin. J Immunol Methods 2023; 521:113554. [PMID: 37661049 DOI: 10.1016/j.jim.2023.113554] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/01/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Antibodies are essential components of the immune system with a wide range of molecular targets. They have been recognized as modalities for treating several diseases and more than 130 approved antibody-based therapeutics are available for clinical use. However, limitations remain associated with its efficacy, tissue permeability, and safety, especially in cancer treatment. Nanoparticles, particularly those responsive to external stimuli, have shown promise in improving the efficacy of antibody-based therapeutics and tissue-selective delivery. In this study, we developed a reliable and accurate method for quantifying the amount of antibody loaded onto lipid nanoparticles modified with Herceptin® (Trastuzumab), an antibody-based therapeutic used to treat HER2-positive cancers, using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) followed by silver staining. This method proved to be a suitable alternative to commonly used protein quantification techniques, which are limited by lipid interference present in the samples. Furthermore, the amount of Herceptin modified on the liposomes, measured by this method, was confirmed by Herceptin's antibody-dependent cell-mediated cytotoxicity activity. Our results demonstrate the potential of this method as a critical tool for developing tissue-selective antibody delivery systems, leading to improved efficacy and reduced side effects of antibody-based therapeutics.
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Affiliation(s)
- Yusuke Yano
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Rui Tada
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Nobuhito Hamano
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Kenshin Haruta
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Tomomi Kobayashi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Masahiro Sato
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Yoko Endo-Takahashi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
| | - Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan.
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Zambelli A, Cazzaniga M, La Verde N, Munzone E, Antonazzo IC, Mantovani LG, Di Cosimo S, Mancuso A, Generali D, Cortesi PA. A cost-consequence analysis of adding pertuzumab to the neoadjuvant combination therapy in HER2-positive high-risk early breast cancer in Italy. Breast 2023; 71:113-121. [PMID: 37573652 PMCID: PMC10428118 DOI: 10.1016/j.breast.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/15/2023] Open
Abstract
INTRODUCTION Clinical trials confirmed the beneficial effects of adding pertuzumab (P) to the combination of trastuzumab-chemotherapy (TC) in the (neo)adjuvant setting of high-risk HER2-positive early breast cancer (HER2+BC). We evaluated the clinical, economic and societal impact of adding pertuzumab to neoadjuvant TC combination (TPC) in Italy. METHODS A cost-consequence analysis comparing TPC vs. TC was performed developing a cohort-based multi-state Markov model to estimate the clinical, societal and economic impact of the neoadjuvant therapy of TPC versus TC in HER2+BC at high-risk of recurrence. The model works on a cycle length of 1 month and 5-years-time horizon. Literature review-based data were used to populate the model. The following clinical and economic outcomes were estimated: cumulative incidence of loco-regional/distant recurrences, life of years and QALY and both direct and indirect costs (€). Finally, sensitivity analyses were performed. RESULTS TPC was associated with a 75,630 € saved of direct costs. Specifically, it was associated with an initial increase of treatment costs (+4.8%) followed by reduction of recurrence management cost (-20.4%). TPC was also associated with an indirect cost reduction of 1.40%, as well as decreased incidence of distant recurrence (-20.14%), days of work lost (-1.53%) and days lived with disability (-0.50%). Furthermore, TPC reported 10,47 QALY gained (+2.77%) compared to TC. The probability to achieve the pathological complete response (pCR) was the parameter that mostly affected the results in the sensitivity analysis. CONCLUSION Our findings suggested that TPC combination could be a cost-saving option in patients with HER2+BC at high-risk of recurrence.
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Affiliation(s)
- Alberto Zambelli
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy; Medical Oncology and Hematology Unit, Humanitas Cancer Center, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Marina Cazzaniga
- Phase 1 Research Centre, ASST-Monza (MB), 20900, Monza, Italy; School of Medicine and Surgery, University of Milano-Bicocca, 20900, Monza, Italy
| | - Nicla La Verde
- Department of Oncology, Sacco Hospital, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Elisabetta Munzone
- Division of Medical Senology, European Institute of Oncology, IRCCS, Milan, Italy
| | | | | | - Serena Di Cosimo
- Department of Advanced Diagnostics, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | | | - Daniele Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, 34127, Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, ASST of Cremona Hospital, 26100, Cremona, Italy
| | - Paolo Angelo Cortesi
- Research Centre on Public Health (CESP), University of Milano-Bicocca, Monza, Italy
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Sussell JA, Press DJ, Hansen SA, Kim E, Du Toit Y, Fung A. Impact of Pertuzumab and Ado-Trastuzumab Emtansine on Cumulative Avoidance of Recurrence Among Women Treated for Locally Advanced, Inflammatory, or Early-Stage Nonmetastatic HER2-Positive Breast Cancer in the United States. Adv Ther 2023; 40:3857-3874. [PMID: 37358705 PMCID: PMC10427558 DOI: 10.1007/s12325-023-02554-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/15/2023] [Indexed: 06/27/2023]
Abstract
INTRODUCTION We assessed the impact of HER2-positive early breast cancer (EBC) treatment landscape changes following the introduction of pertuzumab and ado-trastuzumab emtansine (T-DM1) on cumulative population-level recurrences avoided since 2013 (first pertuzumab approval for EBC in the United States; US). METHODS We constructed a multi-year epidemiologic population treatment-impact model to estimate annual recurrences between 2013 and 2031. Parameters were: BC incidence; stage I-III proportion; HER2-positive disease proportion; treatment proportions for neoadjuvant-only, adjuvant-only, and neoadjuvant-adjuvant continuation; and therapeutic agent proportions within each of those settings (chemotherapy only, trastuzumab ± chemotherapy, pertuzumab with trastuzumab ± chemotherapy, or T-DM1). The primary endpoint was cumulative recurrences, estimated by incorporating extrapolated clinical trial data for each regimen of interest into the model under four scenarios. RESULTS Approximately 889,057 women were predicted to be diagnosed with stage I-III HER2-positive BC from 2006 to 2031 in the US and potentially indicated for HER2-targeted treatment. In steady-state equilibrium, the model estimated that real-world utilization of pertuzumab and T-DM1 will reduce the population-level number of recurrences by approximately 32%, with 7226 recurrences predicted in 2031 based on current utilization rates. In different modeled scenarios, use of neoadjuvant pertuzumab, continuation of pertuzumab in the adjuvant setting, and T-DM1 in the adjuvant setting in women with residual disease after neoadjuvant treatment were all predicted to reduce the number of recurrences. CONCLUSION Given the improvement of HER2-targeted treatments, alongside increases in BC disease burden, we expect that the population-level impact of HER2-targeted treatments will accelerate over the next decade. Our results suggest that utilization of HER2-targeted treatments in the US has the potential to change the epidemiology of HER2-positive EBC by preventing a substantial number of women from experiencing disease recurrence. These improvements may help to inform our understanding of the future disease and economic burden of HER2-positive BC in the US.
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Affiliation(s)
- Jesse A Sussell
- Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA.
| | - David J Press
- Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Svenn A Hansen
- F. Hoffmann-La Roche Ltd, Grenzacherstrasse 124, 4070, Basel, Switzerland
| | - Eunice Kim
- Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Yolande Du Toit
- Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
| | - Anita Fung
- Genentech, Inc., 1 DNA Way, South San Francisco, CA, 94080, USA
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Sorscher S. Letter to the Editor Regarding "Cost-Effectiveness of Neoadjuvant Pembrolizumab Plus Chemotherapy Followed by Adjuvant Single Agent Pembrolizumab for High-Risk Early-Stage Triple Negative Breast Cancer in the United States". Adv Ther 2023; 40:4111-4113. [PMID: 37432550 DOI: 10.1007/s12325-023-02596-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/26/2023] [Indexed: 07/12/2023]
Affiliation(s)
- Steven Sorscher
- Biotheranostics, Inc./A Hologic Company, 6333 Sequence Drive, San Diego, CA, 92121, USA.
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Singh PK, Stan RC. Enhanced binding at fever temperatures of HER2 in complex with trastuzumab and pertuzumab. Immunotherapy 2023; 15:1021-1027. [PMID: 37337732 DOI: 10.2217/imt-2023-0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023] Open
Abstract
Aim: Fever follows the administration of trastuzumab and pertuzumab used in HER2-relevant immunotherapy, but is often eliminated in clinical practice. This work explores the role of temperature (37-39°C) in the formation of immune complexes between HER2 with either trastuzumab or pertuzumab or with both antibodies. Materials & methods: Using molecular dynamics simulations and free energy calculations, the binding between HER2 and these immunotherapeutic monoclonal antibodies was investigated at different temperatures. Results: Trastuzumab and pertuzumab present the highest binding free energy to HER2 at febrile temperatures (39°C), or when HER2 is in complex with both antibodies. Conclusion: Performing molecular dynamics simulations under fever temperatures may be important for delineating their role in enhancing the binding affinity of mature antibodies used in immunotherapy.
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Affiliation(s)
- Puneet K Singh
- Chonnam National University Medical School, Hwasun 264, Seoyang-ro, 58128, Republic of Korea
| | - Razvan C Stan
- Chonnam National University Medical School, Hwasun 264, Seoyang-ro, 58128, Republic of Korea
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Liefaard MC, van der Voort A, van Ramshorst MS, Sanders J, Vonk S, Horlings HM, Siesling S, de Munck L, van Leeuwen AE, Kleijn M, Mittempergher L, Kuilman MM, Glas AM, Wesseling J, Lips EH, Sonke GS. BluePrint molecular subtypes predict response to neoadjuvant pertuzumab in HER2-positive breast cancer. Breast Cancer Res 2023; 25:71. [PMID: 37337299 DOI: 10.1186/s13058-023-01664-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 05/25/2023] [Indexed: 06/21/2023] Open
Abstract
BACKGROUND The introduction of pertuzumab has greatly improved pathological complete response (pCR) rates in HER2-positive breast cancer, yet effects on long-term survival have been limited and it is uncertain which patients derive most benefit. In this study, we determine the prognostic value of BluePrint subtyping in HER2-positive breast cancer. Additionally, we evaluate its use as a biomarker for predicting response to trastuzumab-containing neoadjuvant chemotherapy with or without pertuzumab. METHODS From a cohort of patients with stage II-III HER2-positive breast cancer who were treated with neoadjuvant chemotherapy and trastuzumab with or without pertuzumab, 836 patients were selected for microarray gene expression analysis, followed by readout of BluePrint standard (HER2, Basal and Luminal) and dual subtypes (HER2-single, Basal-single, Luminal-single, HER2-Basal, Luminal-HER2, Luminal-HER2-Basal). The associations between subtypes and pathological complete response (pCR), overall survival (OS) and breast cancer-specific survival (BCSS) were assessed, and pertuzumab benefit was evaluated within the BluePrint subgroups. RESULTS BluePrint results were available for 719 patients. In patients with HER2-type tumors, the pCR rate was 71.9% in patients who received pertuzumab versus 43.5% in patients who did not (adjusted Odds Ratio 3.43, 95% CI 2.36-4.96). Additionally, a significantly decreased hazard was observed for both OS (adjusted hazard ratio [aHR] 0.45, 95% CI 0.25-0.80) and BCSS (aHR 0.46, 95% CI 0.24-0.86) with pertuzumab treatment. Findings were similar in the HER2-single subgroup. No significant benefit of pertuzumab was seen in other subtypes. CONCLUSIONS In patients with HER2-type or HER2-single-type tumors, pertuzumab significantly improved the pCR rate and decreased the risk of breast cancer mortality, which was not observed in other subtypes. BluePrint subtyping may be valuable in future studies to identify patients that are likely to be highly sensitive to HER2-targeting agents.
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Affiliation(s)
- M C Liefaard
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - A van der Voort
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - M S van Ramshorst
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - J Sanders
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - S Vonk
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Core Facility Molecular Pathology and Biobanking, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - H M Horlings
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - S Siesling
- Department of Research and Development, Netherlands Comprehensive Cancer Organization (IKNL), Utrecht, The Netherlands
- Department of Health Technology and Services Research, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - L de Munck
- Department of Research and Development, Netherlands Comprehensive Cancer Organization (IKNL), Utrecht, The Netherlands
| | - A E van Leeuwen
- Dutch Breast Cancer Research Group, BOOG Study Center, Amsterdam, The Netherlands
| | - M Kleijn
- Department of Research and Development, Agendia NV, Amsterdam, The Netherlands
| | - L Mittempergher
- Department of Research and Development, Agendia NV, Amsterdam, The Netherlands
| | - M M Kuilman
- Department of Research and Development, Agendia NV, Amsterdam, The Netherlands
| | - A M Glas
- Department of Research and Development, Agendia NV, Amsterdam, The Netherlands
| | - J Wesseling
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - E H Lips
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - G S Sonke
- Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.
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Lee W, Carlson JJ, Basu A, Veenstra D. Quantifying the value of older adult-specific clinical trials: Post-lumpectomy irradiation among older adults with early-stage breast cancer. J Geriatr Oncol 2023; 14:101487. [PMID: 37075565 DOI: 10.1016/j.jgo.2023.101487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 02/26/2023] [Accepted: 03/27/2023] [Indexed: 04/21/2023]
Abstract
INTRODUCTION Although there is increasing interest in conducting cancer clinical trials in older adults, the benefit of such trials is unclear. We aimed to quantify the real-world clinical and economic effects of two phase 3 trials (CALGB 9343 and PRIME II) which showed that post-lumpectomy radiation therapy (RT) improves loco-regional recurrence but makes no improvement in overall survival among older women with early-stage breast cancer (ESBC). MATERIALS AND METHODS We developed a health-transition model to quantify the incremental clinical and economic outcomes between scenarios with vs. without older adult-specific trial results from a societal perspective between 2004 and 2018. The transition probabilities in the model were mainly derived from the 10-year results of CALGB 9343. The total number of the affected patient population in the US and the change in the probability of omitting post-lumpectomy RT due to the CALGB 9343 and PRIME II results were derived from a retrospective analysis of the SEER registry data for patients with ESBC. Sensitivity analyses were conducted to calculate the 95% credible interval (CR) of the incremental clinical and economic outcomes between the two scenarios. RESULTS Between 2004 and 2018, 32,936 (95% CR: 31,512, 34,357) fewer patients received post-lumpectomy RT among those aged 70 years or older diagnosed with ESBC in the US and there was a decrease cost of $419 M USD (95% CR: -$238 M, -$689 M) in scenarios with vs. without older adult-specific trial results. The difference in projected life years (1083 years, 95% CI: -2542, 7985) and QALYs (866 years, 95% CI: -2561, 7780) were not significant. At a willingness-to-pay threshold of $100 k/QALY, the probability of older adult-specific trial results generating a positive net monetary benefit was 98%. DISCUSSION The CALGB 9343 and PRIME II trial results were associated with a substantial cost-saving in the US society. Our results suggest that older adult-specific clinical trials that demonstrate no survival benefit of an intervention in older adults could be correlated with a significant monetary benefit. Further case studies are needed for different types of older adult-specific trials to understand the value of older adult-specific trials comprehensively.
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Affiliation(s)
- Woojung Lee
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, Department of Pharmacy, University of Washington, USA.
| | - Josh J Carlson
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, Department of Pharmacy, University of Washington, USA
| | - Anirban Basu
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, Department of Pharmacy, University of Washington, USA
| | - David Veenstra
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, Department of Pharmacy, University of Washington, USA
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Tang Z, Xu X, Gao J, Chen L, Zhu Q, Wang J, Yan X, Chen B, Zhu Y. Economic evaluation of margetuximab vs. trastuzumab for pretreated ERBB2-positive advanced breast cancer in the US and China. Front Public Health 2022; 10:942767. [PMID: 36159262 PMCID: PMC9500445 DOI: 10.3389/fpubh.2022.942767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/08/2022] [Indexed: 01/21/2023] Open
Abstract
Objective To assess the economic evaluation of margetuximab plus chemotherapy over trastuzumab plus chemotherapy for women with pretreated ERBB2-positive advanced breast cancer in the United States (US) and China. Methods Based on the SOPHIA trial, a three-state Markov model was developed to compare the cost and efficacy of margetuximab to trastuzumab for previously treated women with ERBB2-positive advanced breast cancer. The model inputs were derived from existing literature and the US life table. Primary outcomes included lifetime costs in US dollars, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratio (ICER). Deterministic and probabilistic sensitivity analyses were conducted to evaluate the impact of uncertainty. Results The base case analyses demonstrated that margetuximab plus chemotherapy had an increasing cost of $68,132 and $20,540 over trastuzumab plus chemotherapy in the US and China, respectively, with a gain of 0.11 and 0.09 QALYs both favored margetuximab. The ICERs for two treatment strategies were $260,176 in the US and $630,777 in China, resulting in a poor cost-effectiveness at their respective threshold of willingness to play. One-way sensitivity analyses showed that the results to be most sensitive to the price of margetuximab and that of trastuzumab. And an 11 and 82% price reduction of margetuximab would make this regimen cost-effective in the US and China, respectively. Conclusion In the US and China, margetuximab plus chemotherapy is not likely to be cost-effective for women with pretreated ERBB2-positive advanced breast cancer, whereas price reduction effectively improves insufficient cost-effectiveness.
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Affiliation(s)
- Zhiyuan Tang
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Xin Xu
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Jie Gao
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Ling Chen
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Qiuyan Zhu
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Jinli Wang
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Xiaoyu Yan
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
| | - Bohua Chen
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, China
| | - Yumei Zhu
- School of International Pharmaceutical Business, China Pharmaceutical University, Nanjing, China
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10
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Magalhães MAF, Aguiar PN, Neves MBM, Lopes GDL, del Giglio A. Cost-effectiveness analysis of Ado-trastuzumab emtansine for the treatment of residual invasive HER2-positive breast cancer. EINSTEIN-SAO PAULO 2022; 20:eGS6655. [PMID: 35544899 PMCID: PMC9071260 DOI: 10.31744/einstein_journal/2022gs6655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 12/22/2021] [Indexed: 12/24/2022] Open
Abstract
Objective Methods Results Conclusion
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Alternative trastuzumab dosing strategies in HER2-positive early breast cancer are associated with patient out-of-pocket savings. NPJ Breast Cancer 2022; 8:32. [PMID: 35288585 PMCID: PMC8921207 DOI: 10.1038/s41523-022-00393-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 02/02/2022] [Indexed: 11/08/2022] Open
Abstract
AbstractPatients with breast cancer frequently experience financial hardship, often due to the high costs of anti-cancer drugs. We sought to develop alternative trastuzumab dosing strategies, compare their pharmacokinetic effectiveness to standard dosing, and assess the expected financial implications of transitioning to them. We extracted clinical data from the records of 135 retrospectively identified patients with HER2-positive early breast cancer at a single, urban comprehensive cancer center who were treated with trastuzumab between 2017 and 2019. We performed pharmacokinetic simulations on a range of trastuzumab dose levels and frequencies, assessing efficacy by trough trastuzumab concentration (Ctrough) and population and individual likelihoods of Ctrough exceeding trastuzumab minimum effective concentration (MEC). We performed deterministic financial modeling to estimate the treatment-associated financial savings from alternative dosing strategies. Trastuzumab maintenance doses of 4 mg/kg every 3 weeks (Q3W) and 6 mg/kg every 4 weeks (Q4W) had nearly identical probabilities of Ctrough being above MEC as standard of care 6 mg/kg every 3 weeks. In the primary financial analysis, both trastuzumab 4 mg/kg Q3W and 6 mg/kg Q4W were associated with significant drug- and administration-related out-of-pocket cost savings over the duration of therapy, ranging from $765 (neoadjuvant, Q4W) to $2791 (adjuvant, Q4W). In particular, Q4W trastuzumab increased savings related to lost wages and travel cost avoidance. Low-dose and reduced frequency trastuzumab in appropriately selected patients may significantly reduce total drug utilization and meaningfully reduce patient financial toxicity. Prospective clinical trials evaluating low-dose or reduced-frequency administration of therapeutic monoclonal antibodies are warranted and needed.
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Takumoto Y, Shiroiwa T, Shimozuma K, Iwata H, Takahashi M, Baba S, Kobayashi K, Hagiwara Y, Kawahara T, Uemura Y, Mukai H, Taira N, Sawaki M. Cost-Effectiveness of Trastuzumab With or Without Chemotherapy as Adjuvant Therapy in HER2-Positive Elderly Breast Cancer Patients: A Randomized, Open-Label Clinical Trial, the RESPECT Trial. Clin Drug Investig 2022; 42:253-262. [PMID: 35233755 PMCID: PMC8930935 DOI: 10.1007/s40261-022-01124-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2022] [Indexed: 11/30/2022]
Abstract
Background and Objective Trastuzumab is a standard care as adjuvant chemotherapy (AdjCT) for patients with human epidermal growth factor receptor 2 (HER2)-positive primary breast cancer (BC) in Japan. However, no reports have evaluated its economics for patients with HER2-positive BC over 70 years of age. The objective of this study was to evaluate the cost-effectiveness of HER2-targeted trastuzumab + chemotherapy in Japan, comparing it with trastuzumab monotherapy. Methods A three-state-partitioned survival model was developed to evaluate the cost-effectiveness of trastuzumab + chemotherapy versus trastuzumab monotherapy for AdjCT in elderly patients with HER2-positive BC. We derived the efficacy data, utilities, and costs of both arms from individual patient data in the RESPECT trial (NCT01104935) and published studies. The costs and quality-adjusted life years (QALYs) were discounted at 2% per annum using a payer perspective. The respective cost estimates were reported in 2019 Japanese Yen (JPY) or US dollars (US$). The primary outcome was the incremental cost-effectiveness ratio (ICER). We assured robustness with deterministic and probabilistic sensitivity analyses. Results The cost per patient for trastuzumab + chemotherapy was JPY 14.6 million (US$137,000), and their QALYs were 9.308, compared with JPY 14.2 million (US$131,000) and 9.101, respectively, for trastuzumab monotherapy. The ICER of trastuzumab + chemotherapy versus trastuzumab monotherapy was JPY 2.7 milllion/QALY (US$17,200/QALY). The ICER for trastuzumab with chemotherapy varied from "Dominant" to "Dominated" in one-way sensitivity analysis. Conclusions The base-case analysis suggests that AdjCT with trastuzumab + chemotherapy is likely to be a cost-effective choice for patients with HER2-positive BC aged 70 years or older. However, the sensitivity analysis suggested uncertainty regarding the cost-effectiveness of trastuzumab + chemotherapy. Supplementary Information The online version contains supplementary material available at 10.1007/s40261-022-01124-y.
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Affiliation(s)
- Yuki Takumoto
- Department of Health and Welfare Services, Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, 2-3-6, Wako, Saitama, 351-0104, Japan. .,Meiji Pharmaceutical University, Tokyo, Japan.
| | - Takeru Shiroiwa
- Department of Health and Welfare Services, Center for Outcomes Research and Economic Evaluation for Health, National Institute of Public Health, 2-3-6, Wako, Saitama, 351-0104, Japan
| | - Kojiro Shimozuma
- Department of Biomedical Sciences, College of Life Sciences, Ritsumeikan University, Kusatsu, Japan
| | - Hiroji Iwata
- Department of Breast Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Masato Takahashi
- Department of Breast Surgery, NHO Hokkaido Cancer Center, Sapporo, Japan
| | - Shinichi Baba
- Department of Surgery, Sagara Hospital, Kagoshima, Japan
| | - Kokoro Kobayashi
- Department of Medical Oncology, The Cancer Institute Hospital of the Japanese Foundation for Cancer Research, Tokyo, Japan
| | - Yasuhiro Hagiwara
- Department of Biostatistics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Takuya Kawahara
- Biostatistics Division, Clinical Research Promotion Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Yukari Uemura
- Biostatistics Section, Department of Data Science, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Hirofumi Mukai
- Department of Breast and Medical Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Naruto Taira
- Department of Breast and Endocrine Surgery, Okayama University Hospital, Okayama, Japan
| | - Masataka Sawaki
- Department of Breast Oncology, Aichi Cancer Center Hospital, Nagoya, Japan
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Sussell JA, Roth JA, Meyer CS, Fung A, Hansen SA. Assessment of the Cost-Effectiveness of HER2-Targeted Treatment Pathways in the Neoadjuvant Treatment of High-Risk HER2-Positive Early-Stage Breast Cancer. Adv Ther 2022; 39:1375-1392. [PMID: 35094298 DOI: 10.1007/s12325-022-02047-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/14/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION This study aims to assess differences in costs and benefits of treatment strategies for high-risk human epidermal growth factor receptor 2 positive (HER2+) early-stage breast cancer (ESBC). METHODS We used a hybrid decision-tree/Markov model to simulate costs and outcomes across six health states: Invasive disease-free, non-metastatic recurrence, remission, first-line and second-line metastatic cancer, and death. We considered several strategies, defined by four attributes: (1) Neoadjuvant targeted therapy (infused pertuzumab and trastuzumab (PH) versus subcutaneous fixed-dose combination (FDC) of pertuzumab and trastuzumab versus trastuzumab alone (H)); (2) adjuvant targeted therapy if pathological complete response (pCR) is achieved (PH, FDC, or H); (3) adjuvant targeted therapy (T-DM1 or H) in the case of residual disease (RD); and (4) use of branded or biosimilar H. Transition probabilities were derived from relevant clinical trials. We included drug costs and costs associated with adverse events and administration. Health state utilities were obtained from clinical trials and the literature. RESULTS Strategies not containing T-DM1 were dominated (worse outcomes and greater costs) by strategies containing T-DM1. Among strategies with pertuzumab continuation in the case of pCR and T-DM1 in the case of RD, use of FDC was dominant (equivalent outcomes and lower costs), relative to strategies using infused therapies, regardless of biosimilar versus branded trastuzumab. Adjuvant continuation of FDC was also cost-effective (better outcomes at reasonable cost increases) relative to strategies which discontinued pertuzumab following pCR. CONCLUSION Dual targeted therapy via FDC (with transition to T-DM1 in the case of RD) is a cost-effective treatment strategy in high-risk HER2+ ESBC.
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Affiliation(s)
- Jesse A Sussell
- Evidence for Access, US Medical Affairs, Genentech, South San Francisco, CA, USA.
| | - Joshua A Roth
- Evidence for Access, US Medical Affairs, Genentech, South San Francisco, CA, USA
| | - Craig S Meyer
- Evidence for Access, US Medical Affairs, Genentech, South San Francisco, CA, USA
| | - Anita Fung
- US Medical Affairs, Genentech, South San Francisco, CA, USA
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14
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Ludbrook GL, Leaman E. Cost-Effectiveness in Perioperative Care: Application of Markov Modeling to Pathways of Perioperative Care. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2022; 25:215-221. [PMID: 35094794 DOI: 10.1016/j.jval.2021.07.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 06/23/2021] [Accepted: 07/30/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVES This study aimed to evaluate the application of cost-effectiveness modeling to redesign of perioperative care pathways, from a hospital perspective. METHODS A Markov cost-effectiveness model of patient transition between care locations, each with different characteristics and cost, was developed. Inputs were derived from clinical trials piloting a preoperative call center and a postoperative medium-acuity care unit. The effect chosen was days at home (DAH) after surgery, reflecting quality of in-hospital care, acknowledged financially by fundholders, and relevant to consumers. Cost was from the hospital's perspective. A model cycle time of 4 hours for 30 days reflected relevant timelines and costs. RESULTS A Markov model was successfully created, accounting for the care locations in the 2 pathways as model states and accounting for consequences and costs. Cost-effectiveness analysis allowed the calculation of an incremental cost-effectiveness ratio comparing these pathways, providing a mean incremental cost-effectiveness ratio of -$427 per additional DAH, where incremental costs and DAH were -$644 and +1.51, respectively. Probabilistic sensitivity analysis suggested the new pathway had a 61% probability of reduced costs and a 74% probability of increased DAH and a 58% probability this pathway was dominant. Tornado analysis revealed the major contributor to increased costs as intensive care unit stay and the major contributor to decreased costs as ward stay. For the new pathway, the probability of transfer from ward to home and the probability of staying at home had the greatest impact on DAH. CONCLUSIONS These data suggest Markov modeling may be a useful tool for the cost-effectiveness analysis of initiatives in perioperative care.
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Affiliation(s)
- Guy L Ludbrook
- Department of Anaesthesia, Royal Adelaide Hospital and Discipline of Acute Care Medicine, University of Adelaide, Adelaide, South Australia, Australia.
| | - Esrom Leaman
- Department of Anaesthesia, Royal Adelaide Hospital and Discipline of Acute Care Medicine, University of Adelaide, Adelaide, South Australia, Australia
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15
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Falcon S, Riva L, Flores C, Vera D, Pinto J, Gomez H. Neoadjuvant pertuzumab in non‑metastatic HER2‑positive breast tumors: Multicentric study in Peru (NeoHer). Mol Clin Oncol 2022; 16:70. [PMID: 35251621 PMCID: PMC8848732 DOI: 10.3892/mco.2022.2503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 11/03/2021] [Indexed: 11/07/2022] Open
Abstract
Several clinical trials have demonstrated the benefit of adding pertuzumab to trastuzumab plus neoadjuvant chemotherapy in the treatment of human epidermal growth factor receptor 2 (HER2)-positive breast cancer. The comparison of outcomes between nonrandomized groups of patients who received similar treatments in routine practice remains difficult. The present study aimed to evaluate the pathological complete response (pCR) rates achieved with pertuzumab among patients in routine clinical care in Peru using real-world data. The definition of pCR used was the absence of residual invasive cancer from the complete resected breast specimen and all sampled regional lymph nodes following completion of neoadjuvant systemic therapy. A total of 44 patients with non-metastatic HER2-positive breast cancer (stages II and III) treated with pertuzumab in the neoadjuvant setting and who underwent surgery at three private clinics in Lima (Peru) were retrospectively evaluated. The pCR was the efficacy endpoint and it was determined and compared with the results from other clinical trials. Furthermore, safety data were described. The median age was 44 years (interquartile range, 39.5-50.5 years) and 65.9% of patients were premenopausal. Regarding the clinical stage, 56.8% were IIA/IIB and 36.4% were IIIA/IIIB/IIIC. All treatment schemes included concurrent trastuzumab. The patients' treatment comprised neoadjuvant therapy of docetaxel/trastuzumab/pertuzumab (THP) with a median of 4 cycles in 30 patients (68.2%) or docetaxel/trastuzumab/pertuzumab/carboplatin (THPCarb) with a median of 6 cycles in 14 patients (31.8%). In total, 70.5% of patients experienced pCR; among hormone receptor-negative cases, 75.0% achieved pCR and in tumors expressing hormone receptors, the rate of pCR was 66.7%. Of those patients subjected to neoadjuvant treatment with THP, 66.7% (20/30) achieved pCR, whereas 78.6% (11/14) of patients who received THPCarb had a pCR. The incidence of drug-related adverse events was 59.1% and in none of the patients, administration was discontinued due to toxicity. The present results of Peruvian patients with HER2 breast cancer treated according to clinical routine demonstrated that dual blockade of HER2 with trastuzumab and pertuzumab in the neoadjuvant setting achieved high rates of pCR even in hormone receptor-positive patients. These results are consistent with those of randomized controlled trials, with a good safety profile.
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Affiliation(s)
- Silvia Falcon
- Department of Medical Oncology, Aliada, Lima 15036, Peru
| | - Luis Riva
- Department of Medical Oncology, Clínica Internacional, Lima 15036, Peru
| | - Christina Flores
- Faculty of Human Medicine, Universidad Peruana Cayetano Heredia, Lima 15102, Peru
| | - Delphis Vera
- Digital Business Transformation and Strategy, Laboratory Corporation of America Holdings (Labcorp), Burlington, NC 27251, USA
| | - Joseph Pinto
- Center for Basic and Translational Research, Auna Ideas, Lima 15036, Peru
| | - Henry Gomez
- Department of Medical Oncology, Oncosalud‑AUNA, Lima 15036, Peru
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Ludbrook GL. The Hidden Pandemic: the Cost of Postoperative Complications. CURRENT ANESTHESIOLOGY REPORTS 2021; 12:1-9. [PMID: 34744518 PMCID: PMC8558000 DOI: 10.1007/s40140-021-00493-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/14/2021] [Indexed: 12/17/2022]
Abstract
Purpose of Review Population-based increases in ageing and medical co-morbidities are expected to substantially increase the incidence of expensive postoperative complications. This threatens the sustainability of essential surgical care, with negative impacts on patients' health and wellbeing. Recent Findings Identification of key high-risk areas, and implementation of proven cost-effective strategies to manage both outcome and cost across the end-to-end journey of the surgical episode of care, is clearly feasible. However, good programme design and formal cost-effectiveness analysis is critical to identify, and implement, true high value change. Summary Both outcome and cost need to be a high priority for both fundholders and clinicians in perioperative care, with the focus for both groups on delivering high-quality care, which in itself, is the key to good cost management.
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Affiliation(s)
- Guy L. Ludbrook
- The University of Adelaide, and Royal Adelaide Hospital, C/O Royal Adelaide Hospital, 3G395, 1 Port Road, Adelaide, South Australia 5000 Australia
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17
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Borges A, Pereira F, Redondo P, Antunes L, Vieira C, Antunes P, Bento MJ, Sousa S, Lopes JM, Rocha-Gonçalves F, de Sousa JA, Pereira DS, Borges M. The addition of neoadjuvant pertuzumab for the treatment of HER2+ breast cancer: a cost estimate with real-world data. HEALTH ECONOMICS REVIEW 2021; 11:33. [PMID: 34505956 PMCID: PMC8431932 DOI: 10.1186/s13561-021-00332-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 08/27/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Breast cancer (BC) is largely prevalent worldwide. HER2-positive BC account for roughly 20-25% of all BC cases and has an overall survival lower than other BC. Innovation on BC therapeutics is a constant, but novel therapies have higher costs. Therefore, cost-effectiveness research is essential to provide healthcare decision-makers with solid foundations for a resource allocation. This study aims to estimate the average direct medical costs/patient and cost-effectiveness of adding pertuzumab in neoadjuvant treatment (NeoT) for HER2-positive breast cancer (BC). METHODS Two retrospective real-world consecutive cohorts of ≥18yo female patients diagnosed with HER2-positive BC treated with NeoT at the Breast Clinic of IPO-Porto were studied. The AC-DH regimen (2012-2015) comprised 8 cycles of neoadjuvant therapy (4 cycles of doxorubicin + cyclosphosphamide followed by 4 cycles ofdocetaxel + trastuzumab), while the AC-DHP regimen (2015-2017) included also pertuzumab as NeoT. NeoT was followed by surgery and adjuvant trastuzumab. Micro-costing technique and a bottom-up approach was used comprising all medical direct costs from the hospital perspective. Unit costs were obtained from government official prices or from IPO-Porto costing system. Costs were adjusted to 2017 and are expressed in euros. Multivariable logistic regression models were used for effectiveness assessment, while generalized linear models with gamma distribution were used for costs. ICER was calculated using the pathological complete response (pCR) as the preferential measure of effectiveness. Sensitivity analysis was also performed. RESULTS AC-DHP (n = 40) and AC-DH (n = 54) cohorts had heterogenous patient profiles (median age 43y/53y; 67.5%/59.3% positive HR; 60.0%/27.8% operable; 25.0%/24.1% inflammatory, respectively). The AC-DHP average total cost/patient was 56,375€, with pertuzumab accounting for 13,978€ (24.79%) and increasing in 15,982€ the average cost/patient (p < 0.001). Clinical staging and hormone receptors (HR) were significantly associated with pCR. ICER was 1.370€ per percentage point of pCR. CONCLUSIONS ICER was more favourable in stage III HR negative BC patients compared to other patient profiles. Innovative treatments access is critical to deliver high-quality healthcare, but sustainability must be considered. These results suggest the importance of establishing a cost-effectiveness profile of Pertuzumab in NeoT for HER2-positive BC.
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Affiliation(s)
- Andreia Borges
- Outcomes Research Lab, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Management, Outcomes Research, and Economics in Healthcare Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Filipa Pereira
- Medical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Patrícia Redondo
- Outcomes Research Lab, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Management, Outcomes Research, and Economics in Healthcare Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Luís Antunes
- Department of Epidemiology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Cancer Epidemiology Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Cláudia Vieira
- Medical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Molecular Oncology Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Faculty of Medicine, University of Porto, Porto, Portugal
| | - Pedro Antunes
- Surgical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Maria José Bento
- Department of Epidemiology, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Cancer Epidemiology Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
- Department of Population Studies, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - Susana Sousa
- Medical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - José Machado Lopes
- Outcomes Research Lab, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | | | - Joaquim Abreu de Sousa
- Surgical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Deolinda Sousa Pereira
- Medical Oncology Department, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal
| | - Marina Borges
- Outcomes Research Lab, Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal.
- Management, Outcomes Research, and Economics in Healthcare Group, IPO Porto Research Center (CI-IPOP), Portuguese Oncology Institute of Porto (IPO Porto), Porto, Portugal.
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Sussell J, Singh Jhuti G, Antao V, Herrera-Restrepo O, Wehler E, Bilir SP. Cost-effectiveness Analysis of Ado-trastuzumab Emtansine (T-DM1) for the Adjuvant Treatment of Patients With Residual Invasive HER2+ Early Breast Cancer in the United States. Am J Clin Oncol 2021; 44:340-349. [PMID: 34151896 DOI: 10.1097/coc.0000000000000816] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Ado-trastuzumab emtansine (T-DM1) was recently approved for patients with human epidermal growth factor receptor 2 positive (HER2+) early breast cancer (eBC) with residual invasive disease after neoadjuvant taxane and trastuzumab-based treatment. Cost-effectiveness analysis was conducted to compare T-DM1 versus trastuzumab in the United States. MATERIALS AND METHODS A Markov cohort-based model tracked clinical and economic outcomes over a lifetime horizon from a US payer perspective. The model included 6 health states: invasive disease-free, nonmetastatic (locoregional) recurrence, remission, first-line and second-line metastatic BC and death. Model state transitions were based on statistical extrapolation of the head-to-head KATHERINE study and published sources. Dosing and treatment duration reflected prescribing information and trials. Costs (2019 US dollars) associated with pharmaceutical treatment (wholesale acquisition costs), health state specific care, adverse events, and end-of-life care were included. Health state utilities were obtained from KATHERINE and published literature. RESULTS T-DM1 dominated trastuzumab, yielding lower lifetime costs (-$40,271), and higher life-years (2.980) and quality-adjusted life-years (2.336). Results were driven by patients receiving T-DM1 spending less time in more costly downstream health states, as these patients are less likely to experience a recurrence overall, despite having a higher likelihood of metastatic disease (distant recurrence) in the subset of patients who experience recurrence. Probabilistic sensitivity analysis indicated robust results, with 96.7% of 5000 stochastic simulations producing dominance for T-DM1. The most influential variables were related to treatment costs, off treatment utilities, and health state costs. Additional scenario analyses tested a range of model inputs and assumptions, and produced consistent results. CONCLUSION Relative to trastuzumab, T-DM1 treatment for patients with HER2+ eBC who have residual invasive disease after neoadjuvant taxane and trastuzumab-based treatment is likely to reduce the overall financial burden of cancer, while simultaneously improving patient outcomes.
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Affiliation(s)
| | | | | | | | - Elizabeth Wehler
- US HEOR and Real World Evidence Solutions, IQVIA, Plymouth Meeting, PA
| | - S Pinar Bilir
- US HEOR and Real World Evidence Solutions, IQVIA, San Francisco, CA
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19
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Jiao B, Garrison LP. The challenge of value-based pricing in combination therapy: the case of trastuzumab and pertuzumab in HER2+ metastatic breast cancer. Expert Rev Pharmacoecon Outcomes Res 2021; 21:497-504. [PMID: 33645393 DOI: 10.1080/14737167.2021.1896968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
BACKGROUND Under current reimbursement (CR) practice even though an add-on drug in a combination therapy may produce marginal value in terms of health gain, the original therapy may also share in the reward for this additional value. We examine an alternative 'marginal value-based reimbursement' (MVBR) model in which an original therapy would not share in the marginal value. METHODS In a case study for treatment of HER2+ metastatic breast cancer, we computed the incremental cost-effectiveness ratios (ICERs) of adding pertuzumab to trastuzumab and docetaxel (PHT) vs. trastuzumab and docetaxel (HT) under the CR and the MVBR models, respectively. We further estimated the revised cost of pertuzumab under three alternative willingness-to-pay thresholds based on (a) using the current ICER of PHT vs. HT, (b) the historical ICER of HT vs. docetaxel, and (c) applying the oft-used $150,000/quality-adjusted life year (QALY) gained. RESULTS If reimbursement were changed from CR to MVBR, at the current price of pertuzumab, the ICER would decline from $409,213 to $323,236/QALY gained. If the price were adjusted under the three thresholds, the payment for pertuzumab would be increased by between 32% and 93%. CONCLUSION The proposed MVBR model would provide a stronger economic incentive to develop add-on drugs.
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Affiliation(s)
- Boshen Jiao
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, School of Pharmacy, University of Washington, Seattle, WA, USA
| | - Louis P Garrison
- The Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, School of Pharmacy, University of Washington, Seattle, WA, USA
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20
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Zhang H, Liu T, Wu M, Wei H, Li C, Li X, Liu J, Chen H, Ding Y, Liu L. Safety and pharmacokinetics of a new biosimilar trastuzumab (HL02): a Phase I bioequivalence study in healthy Chinese men. Expert Opin Biol Ther 2021; 22:179-186. [PMID: 33616478 DOI: 10.1080/14712598.2021.1894121] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Objectives: The study aimed to explore the bioequivalence of a proposed biosimilar HL02 vs. its reference products (US-trastuzumab) among healthy Chinese men.Methods: In this study, nine healthy male subjects received single ascending doses of trastuzumab biosimilar (HL02, 2-8 mg/kg), and then a randomized, double-blind, two-arm, parallel study was conducted to investigate the PK similarity of HL02 (6 mg/kg) with that of US-trastuzumab as a reference drug.Results: PK properties exhibited by HL02 (N = 55) were similar to those of US-trastuzumab (N = 52). The comparison of biosimilarity with US-trastuzumab showed that the 90% confidence intervals (CIs) of the ratios for Cmax, AUC0-t, and AUC0-∞ were within 80-125%. Nineteen subjects were positive for ADA and negative for NAb in both HL02 and US-trastuzumab groups. In total, 81.67% of subjects in HL02 and 78.95% in US-trastuzumab groups showed treatment-related mild or moderate adverse events, mild elevation of transaminase level being the most common adverse events (AE) recorded.Conclusions: The PK characteristics and immunogenicity exhibited by HL02 were similar to that of the reference product, US-trastuzumab. The safety profiles were similar in both the treatment groups with mild-moderate adverse effects.
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Affiliation(s)
- Hong Zhang
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Ting Liu
- Department of Endoscopy, Jilin Cancer Hospital, Jilin, China
| | - Min Wu
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Haijing Wei
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Cuiyun Li
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Xiaojiao Li
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Jingrui Liu
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Hong Chen
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Yanhua Ding
- Phase I Clinical Research Center, The First Hospital of Jilin University, Jilin, China
| | - Li Liu
- Department of Pediatrics, The First Hospital of Jilin University, Jilin, China
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21
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Stoen E, Kagihara J, Shagisultanova E, Fisher CM, Nicklawsky A, Kabos P, Borges VF, Diamond JR. Real-world evidence from a University Hospital system regarding the uptake of adjuvant pertuzumab and/or neratinib before and after their FDA approval. Breast Cancer Res Treat 2021; 187:883-891. [PMID: 33625615 PMCID: PMC8197701 DOI: 10.1007/s10549-021-06132-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 02/05/2021] [Indexed: 11/20/2022]
Abstract
Purpose Adjuvant pertuzumab and neratinib are independently FDA-approved for treatment of early-stage HER2-positive breast cancer in combination with or following trastuzumab for one year, respectively. Both agents reduce the risk of recurrence; however, the absolute benefit is modest for many patients with added risk of adverse effects. The purpose of this study was to evaluate the clinical use of adjuvant pertuzumab and neratinib in patients with early-stage HER2-positive breast cancer. Methods Patients diagnosed with stage I–III HER2-positive breast cancer treated with trastuzumab at four University of Colorado Health hospitals between July 2016 and April 2019 were identified. Patient demographics, cancer stage, treatment, and administration of pertuzumab and/or neratinib were obtained. Results We identified a total of 350 patients who received adjuvant trastuzumab for stage I–III HER2-positive breast cancer; 253 (73.1%) had tumors that were ≥ T2 or node-positive disease. The rate of adjuvant pertuzumab use increased following FDA approval; pertuzumab was administered to the majority of patients with node-positive HER2-positive breast cancer. The use of adjuvant pertuzumab was associated with younger age, premenopausal status, and node-positive disease. Rates of administration of adjuvant neratinib were lower, with only 15.2% of patients receiving this therapy within 3 months of completing adjuvant trastuzumab. Conclusion In our cohort of patients treated within a diverse healthcare network, the majority of patients with node-positive HER2-positive breast cancer received adjuvant pertuzumab following FDA approval. The use of adjuvant neratinib was less common, potentially as a result of adverse effects, prolongation of therapy, previous administration of adjuvant pertuzumab, and modest benefit.
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Affiliation(s)
- Ericson Stoen
- Department of Internal Medicine, University of Colorado School of Medicine, 12401 East 17th Avenue, Mailstop F-782, Aurora, CO, 80045, USA.
| | - Jodi Kagihara
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Elena Shagisultanova
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Christine M Fisher
- Department of Radiation Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Andrew Nicklawsky
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO, USA
| | - Peter Kabos
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Virginia F Borges
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
| | - Jennifer R Diamond
- Division of Medical Oncology, University of Colorado School of Medicine, Aurora, CO, USA
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22
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Cheng LJ, Loke L, Lim EH, Pearce F, Aziz MIA, Ng K. Cost-effectiveness of pertuzumab and trastuzumab biosimilar combination therapy as initial treatment for HER2-positive metastatic breast cancer in Singapore. Expert Rev Pharmacoecon Outcomes Res 2021; 21:449-456. [PMID: 33595372 DOI: 10.1080/14737167.2021.1880323] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND This study evaluates the cost-effectiveness of pertuzumab with trastuzumab biosimilar and docetaxel as initial treatment for HER2-positive metastatic breast cancer (MBC) in Singapore. METHODS A partitioned survival model with three health states was developed to evaluate the cost-effectiveness of trastuzumab biosimilar and docetaxel with or without pertuzumab from a healthcare system perspective over a 15-year time horizon for patients with HER2-positive MBC. Key clinical inputs were derived from the CLEOPATRA trial. Health state utilities were derived from the literature and direct medical costs were obtained from local public healthcare institutions. RESULTS The base-case resulted in an incremental cost-effectiveness ratio (ICER) of SGD366,658 (USD272,244) per quality-adjusted life-year (QALY) gained. One-way sensitivity analyses showed that the ICER was sensitive to utilities in the progression-free state, price of pertuzumab and time horizon. When the price for trastuzumab reference biologic (branded) was applied, the ICER was even higher (SGD426,996 [USD317,045]/QALY). CONCLUSION Although trastuzumab biosimilar reduced the cost of the pertuzumab combination regimen, the ICER remained high and was not cost effective in Singapore's context. As pertuzumab contributed 80% of the overall combination treatment cost, price reductions for pertuzumab will be required to improve the cost-effectiveness of combination treatment to an acceptable level.
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Affiliation(s)
- Li-Jen Cheng
- Agency for Care Effectiveness (ACE), Ministry of Health, Singapore
| | - Lydia Loke
- Agency for Care Effectiveness (ACE), Ministry of Health, Singapore
| | | | - Fiona Pearce
- Agency for Care Effectiveness (ACE), Ministry of Health, Singapore
| | | | - Kwong Ng
- Agency for Care Effectiveness (ACE), Ministry of Health, Singapore
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23
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Denduluri N, Somerfield MR, Chavez-MacGregor M, Comander AH, Dayao Z, Eisen A, Freedman RA, Gopalakrishnan R, Graff SL, Hassett MJ, King TA, Lyman GH, Maupin GR, Nunes R, Perkins CL, Telli ML, Trudeau ME, Wolff AC, Giordano SH. Selection of Optimal Adjuvant Chemotherapy and Targeted Therapy for Early Breast Cancer: ASCO Guideline Update. J Clin Oncol 2020; 39:685-693. [PMID: 33079579 DOI: 10.1200/jco.20.02510] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE The aim of this work is to update key recommendations of the ASCO guideline adaptation of the Cancer Care Ontario guideline on the selection of optimal adjuvant chemotherapy regimens for early breast cancer and adjuvant targeted therapy for breast cancer. METHODS An Expert Panel conducted a targeted systematic literature review guided by a signals approach to identify new, potentially practice-changing data that might translate into revised guideline recommendations. RESULTS The Expert Panel reviewed abstracts from the literature review and identified one article for inclusion that reported results of the phase III, open-label KATHERINE trial. In the KATHERINE trial, patients with stage I to III human epidermal growth factor receptor 2 (HER2)-positive breast cancer with residual invasive disease in the breast or axilla after completing neoadjuvant chemotherapy and HER2-targeted therapy were allocated to adjuvant trastuzumab emtansine (T-DM1; n = 743) or to trastuzumab (n = 743). Invasive disease-free survival was significantly higher in the T-DM1 group than in the trastuzumab arm (hazard ratio, 0.50; 95% CI, 0.39 to 0.64; P < .001), and risk of distant recurrence was lower in patients who received T-DM1 than in patients who received trastuzumab (hazard ratio, 0.60; 95% CI, 0.45 to 0.79). Grade 3 or higher adverse events occurred in 190 patients (25.7%) who received T-DM1 and in 111 patients (15.4%) who received trastuzumab. RECOMMENDATIONS Patients with HER2-positive breast cancer with pathologic invasive residual disease at surgery after standard preoperative chemotherapy and HER2-targeted therapy should be offered 14 cycles of adjuvant T-DM1, unless there is disease recurrence or unmanageable toxicity. Clinicians may offer any of the available and approved formulations of trastuzumab, including trastuzumab, trastuzumab and hyaluronidase-oysk, and available biosimilars.Additional information can be found at www.asco.org/breast-cancer-guidelines.
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Affiliation(s)
| | | | | | - Amy H Comander
- Massachusetts General Hospital Center at Newton-Wellesley, Newton, MA
| | | | - Andrea Eisen
- Sunnybrook Odette Cancer Centre, Toronto, Ontario, Canada.,Ontario Health (Cancer Care Ontario), Toronto, Ontario, Canada
| | | | | | | | | | - Tari A King
- Dana-Farber Cancer Institute, Boston, MA.,Brigham & Women's Cancer Center, Boston, MA
| | - Gary H Lyman
- Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Raquel Nunes
- Sidney Kimmel Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD
| | | | | | - Maureen E Trudeau
- Sunnybrook Odette Cancer Centre, Toronto, Ontario, Canada.,Ontario Health (Cancer Care Ontario), Toronto, Ontario, Canada
| | - Antonio C Wolff
- Sidney Kimmel Cancer Center, Johns Hopkins School of Medicine, Baltimore, MD
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24
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Al-Ziftawi NH, Shafie AA, Mohamed Ibrahim MI. Cost-effectiveness analyses of breast cancer medications use in developing countries: a systematic review. Expert Rev Pharmacoecon Outcomes Res 2020; 21:655-666. [PMID: 32657174 DOI: 10.1080/14737167.2020.1794826] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Pharmacoeconomic evaluation is important for breast-cancer medications due to their high costs. To our knowledge, no systematic literature reviews of pharmacoeconomic studies for breast-cancer medication use are present in developing-countries. OBJECTIVES To systematically review the existing cost-effectiveness evaluations of breast-cancer medication in developing-countries. METHODOLOGY A systematic literature search was performed in PubMed, EMBASE, SCOPUS, and EconLit. Two researchers determined the final articles, extracted data, and evaluated their quality using the Quality of Health-Economic Studies (QHES) tool. The interclass-correlation-coefficient (ICC) was calculated to assess interrater-reliability. Data were summarized descriptively. RESULTS Fourteen pharmacoeconomic studies published from 2009 to 2019 were included. Thirteen used patient-life-years as their effectiveness unit, of which 10 used quality-adjusted life-years. Most of the evaluations focused on trastuzumab as a single agent or on regimens containing trastuzumab (n = 10). The conclusion of cost-effectiveness analysis varied among the studies. All the studies were of high quality (QHES score >75). Interrater reliability between the two reviewers was high (ICC = 0.76). CONCLUSION In many studies included in the review, the use of breast-cancer drugs in developing countries was not cost-effective. Yet, more pharmacoeconomic evaluations for the use of recently approved agents in different disease stages are needed in developing countries.
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Affiliation(s)
- Nour Hisham Al-Ziftawi
- Clinical Pharmacy and Practice Department, College of Pharmacy, QU Health, Qatar University, Doha, Qatar
| | - Asrul Akmal Shafie
- Discipline of Social and Administrative Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang, Malaysia.,Institutional Planning and Strategic Center, Universiti Sains Malaysia, Penang, Malaysia
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25
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Phua LC, Lee SC, Ng K, Abdul Aziz MI. Cost-effectiveness analysis of atezolizumab in advanced triple-negative breast cancer. BMC Health Serv Res 2020; 20:581. [PMID: 32580722 PMCID: PMC7315527 DOI: 10.1186/s12913-020-05445-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 06/18/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The IMpassion130 trial demonstrated that adding atezolizumab to nanoparticle albumin-bound (nab)-paclitaxel improved the survival of patients with untreated, advanced, programmed death ligand 1 (PDL1)-positive triple-negative breast cancer (TNBC). In view of the high cost of immunotherapy, it is important to examine its value with respect to both benefits and costs. In this study, the cost-effectiveness of atezolizumab/nab-paclitaxel combination therapy relative to nab-paclitaxel monotherapy was evaluated for the first-line treatment of advanced, PDL1-positive TNBC, from a healthcare system perspective. METHODS A three-state partitioned-survival model was developed to compare the clinical and economic outcomes of treatment with atezolizumab/nab-paclitaxel combination therapy with nab-paclitaxel monotherapy in patients with advanced TNBC. Clinical data were obtained from the IMpassion130 trial and extrapolated to 5 years. Health state utilities were retrieved from the literature, while direct costs (in Singapore dollars, S$) were sourced from public healthcare institutions in Singapore. The primary outcomes of the model were life years (LYs), quality-adjusted LYs (QALYs), costs and incremental cost-effectiveness ratios (ICERs). One-way and probabilistic sensitivity analyses and scenario analyses were conducted to explore the impact of specific assumptions and uncertainties. RESULTS Adding atezolizumab to nab-paclitaxel resulted in an additional 0.361 QALYs (0.636 LYs) at an ICER of S$324,550 per QALY gained. The ICER remained high at S$67,092 per QALY even when atezolizumab was priced zero. One-way sensitivity analysis showed that the ICER was most sensitive to variations in the cost of atezolizumab and the time horizon. Scenario analyses confirmed that the ICERs remained high even under extremely favourable assumptions. CONCLUSIONS Given the exceedingly high ICER, adding atezolizumab to nab-paclitaxel was unlikely to represent good value for money for the treatment of advanced PDL1-positive TNBC. Our findings will be useful in informing funding policy decisions alongside other considerations such as comparative effectiveness, unmet need and budget impact.
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Affiliation(s)
- Lee Cheng Phua
- Agency for Care Effectiveness, Ministry of Health, Singapore, 14 College Road, Singapore, 169853, Singapore
| | - Soo Chin Lee
- Department of Haematology-Oncology, National University Cancer Institute, Singapore, Singapore
| | - Kwong Ng
- Agency for Care Effectiveness, Ministry of Health, Singapore, 14 College Road, Singapore, 169853, Singapore.
| | - Mohamed Ismail Abdul Aziz
- Agency for Care Effectiveness, Ministry of Health, Singapore, 14 College Road, Singapore, 169853, Singapore.
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26
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Jayasekera J, Mandelblatt JS. Systematic Review of the Cost Effectiveness of Breast Cancer Prevention, Screening, and Treatment Interventions. J Clin Oncol 2019; 38:332-350. [PMID: 31804858 DOI: 10.1200/jco.19.01525] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Jinani Jayasekera
- Georgetown-Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
| | - Jeanne S Mandelblatt
- Georgetown-Lombardi Comprehensive Cancer Center, Georgetown University, Washington, DC
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27
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Ishii K, Morii N, Yamashiro H. Pertuzumab in the treatment of HER2-positive breast cancer: an evidence-based review of its safety, efficacy, and place in therapy. CORE EVIDENCE 2019; 14:51-70. [PMID: 31802990 PMCID: PMC6827570 DOI: 10.2147/ce.s217848] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/01/2019] [Indexed: 12/23/2022]
Abstract
Human epidermal growth factor receptor 2 (HER2)-positive breast cancer is a distinct subset of breast cancer that results from overexpression of HER2 protein. Pertuzumab-a recombinant humanized monoclonal antibody that binds to the extracellular dimerization domain II of HER2-was recently approved for adjuvant therapy and neoadjuvant therapy of HER2-positive early breast cancer. As pertuzumab and trastuzumab bind to different domains of the extracellular dimerization domain of HER2, a combination therapy of pertuzumab and trastuzumab is beneficial for the treatment of metastatic cancer, advanced local cancer, or early cancer by dual HER2 blockage. Many clinical trials have been performed using pertuzumab for breast cancer patients; these include the CLEOPATRA trial for palliative therapy, the APHINITY trial for adjuvant therapy, and the NeoSphere and the TRYPHAENA trials for neoadjuvant therapy. These trials revealed pertuzumab to be a safe and effective drug regardless of the patient age and hormone receptor status. Notably, pertuzumab use was associated with severe cardiac toxicity in some cases; however, the risk of pertuzumab-induced cardiac dysfunction was low. The most common adverse effect associated with pertuzumab-use was diarrhea, but most cases were not severe. Several different chemotherapeutic agents have been investigated to determine optimal chemotherapeutic combinations for dual HER2 blockage. Some exploratory analyses indicate that pertuzumab treatment offered little benefit to patients with node-negative and small primary tumors; pertuzumab treatment was also found not be cost-effective. Further research will reveal the appropriate usage of pertuzumab for treating a subset of eligible patients.
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Affiliation(s)
- Kei Ishii
- Department of Breast Surgery, Tenri Hospital, Tenri, Japan
| | - Nao Morii
- Department of Breast Surgery, Tenri Hospital, Tenri, Japan
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28
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Arnedos M, Gligorov J. St Gallen International Consensus Guidelines in early breast cancer: experts to prevent patients' overtreatment and breaking the bank? Ann Oncol 2019; 30:1533-1535. [PMID: 31504122 DOI: 10.1093/annonc/mdz292] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023] Open
Affiliation(s)
- M Arnedos
- Breast Unit, Department of Medical Oncology, Gustave Roussy Cancer Campus, Villejuif, France.
| | - J Gligorov
- Medical Oncology Department, Tenon Hospital, Inserm U938, Institut Universitaire de Cancérologie AP-HP Sorbonne Université, Tenon Hospital, Paris, France
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