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Armijo N, Salas C, Espinoza N, Espinoza M, Balmaceda C. Budget impact analysis of durvalumab consolidation therapy vs no consolidation therapy after chemoradiotherapy in stage III non-small cell lung cancer in the context of the Chilean health care system. PLoS One 2024; 19:e0307473. [PMID: 39058755 PMCID: PMC11280244 DOI: 10.1371/journal.pone.0307473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 07/06/2024] [Indexed: 07/28/2024] Open
Abstract
BACKGROUND Durvalumab, used as consolidation immunotherapy, has shown to improve survival in patients with stage III non-small cell lung cancer who respond to chemoradiotherapy, based on the most recent follow-up of PACIFIC. The Chilean healthcare system provides access to certain immunotherapies for this condition. The present study sought to estimate the budget impact of durvalumab versus standard of care in the context of the Chilean healthcare system. RESEARCH DESIGN AND METHODS A partitioned survival model was adapted to compare two strategies: durvalumab as consolidation therapy and standard of care for treating stage III NSCLC. The number of patients eligible for treatment was estimated using published incidence data and modeled for a 5-year time horizon. Model inputs were based on published literature, and the duration of treatment was estimated using survival curves obtained from PACIFIC. Costs were estimated in Chilean pesos (CLP) and converted to USD dollars using an exchange rate of USD 1 = CLP 827. Scenario analyses were performed to assess different subsequent therapy splits, variations in the target population and dosage of durvalumab. RESULTS Durvalumab uptake projected total costs ranging from USD 1.27 in Year 1 to 8.5 million in Year 5 from the public perspective. From the private perspective, the budget impact for the first year is USD 1.3 million to USD 3 million for 2028. This difference relies mostly on the lower number of patients treated. Both perspectives anticipated cost savings over the time horizon through reduced monitoring, adverse events, and end-of-life expenses. CONCLUSIONS This study demonstrates that the inclusion of Durvalumab for NSCLC in Chile represents an investment in the Chilean health system. The incremental costs align with clinical benefits and potential savings in healthcare resource utilization. However, a comprehensive cost-effectiveness analysis is needed to evaluate its economic value thoroughly.
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Affiliation(s)
- Nicolás Armijo
- Epsilon Research, Santiago, Chile
- Departamento de Salud Pública ‐ Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | | | - Manuel Espinoza
- Epsilon Research, Santiago, Chile
- Departamento de Salud Pública ‐ Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carlos Balmaceda
- Epsilon Research, Santiago, Chile
- Departamento de Salud Pública ‐ Pontificia Universidad Católica de Chile, Santiago, Chile
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Buja A, Pasello G, Schiavon M, De Luca G, Rivera M, Cozzolino C, De Polo A, Scioni M, Bortolami A, Baldo V, Conte P. Cost-effectiveness analysis of the new oncological drug durvalumab in Italian patients with stage III non-small cell lung cancer. Thorac Cancer 2022; 13:2692-2698. [PMID: 35971638 PMCID: PMC9527163 DOI: 10.1111/1759-7714.14531] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 12/03/2022] Open
Abstract
Background The monoclonal antibody durvalumab, an immune‐checkpoint inhibitor (ICI) antiprogrammed death ligand 1 (PD‐L1), is available for unresectable stage III NSCLC patients as consolidation therapy following induction chemoradiotherapy, with very promising overall survival (OS) and progression‐free survial (PFS) results in registration trials. The purpose of this study was to provide policymakers with an estimate of the cost‐effectiveness of durvalumab in the treatment of non‐small cell lung cancer (NSCLC). Methods The study developed a Markov model covering a 5‐year period to compare costs and outcomes of treating PD‐L1 positive patients with or without durvalumab. We conducted a series of sensitivity analyses (Tornado analysis and Monte Carlo simulation) by varying some parameters to assess the robustness of our model and identify the parameters with the greatest impact on cost‐effectiveness. Results Prior to the release of durvalumab, the management of NSCLC over a 5‐year period cost €33 317 per patient, with an average life expectancy of 2.01 years. After the introduction of the drug, this increased to €37 317 per patient, with an average life expectancy of 2.13 years. Treatment with durvalumab led to an incremental cost‐effectiveness ratio (ICER) of €35 526 per year. OS is the variable that contributes the most to the variability of the ICER. Conclusions The study observed that durvalumab is a cost‐effective treatment option for patients with unresectable stage III NSCLC.
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Affiliation(s)
- Alessandra Buja
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Giulia Pasello
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.,Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Marco Schiavon
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Giuseppe De Luca
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Michele Rivera
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Claudia Cozzolino
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Anna De Polo
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Manuela Scioni
- Statistics Department, University of Padua, Padua, Italy
| | - Alberto Bortolami
- Rete Oncologica Veneta (ROV), Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Vincenzo Baldo
- Department of Cardiac, Thoracic, and Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - PierFranco Conte
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy.,Medical Oncology 2, Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
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