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Puszkiel A, Bianconi G, Pasquiers B, Balakirouchenane D, Arrondeau J, Boudou-Rouquette P, Bretagne MC, Salem JE, Declèves X, Vidal M, Kramkimel N, Guegan S, Aractingi S, Huillard O, Alexandre J, Wislez M, Goldwasser F, Blanchet B. Extending the dosing intervals of nivolumab: model-based simulations in unselected cancer patients. Br J Cancer 2024; 130:1866-1874. [PMID: 38532102 PMCID: PMC11130267 DOI: 10.1038/s41416-024-02659-x] [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: 10/03/2023] [Revised: 03/05/2024] [Accepted: 03/12/2024] [Indexed: 03/28/2024] Open
Abstract
BACKGROUND Reducing nivolumab dose intensity could increase patients' life quality and decrease the financial burden while maintaining efficacy. The aims of this study were to develop a population PK model of nivolumab based on data from unselected metastatic cancer patients and to simulate extended-interval regimens allowing to maintain minimal effective plasma concentrations (MEPC). METHODS Concentration-time data (992 plasma nivolumab concentrations, 364 patients) were modeled using a two-compartment model with linear elimination clearance in Monolix software. Extended-interval regimens allowing to maintain steady-state trough concentrations (Cmin,ss) above the MEPC of 2.5 mg/L or 1.5 mg/L in >90% of patients were simulated. RESULTS Increasing 3-times the dosing interval from 240 mg every two weeks (Q2W) to Q6W and 2-times from 480 mg Q4W to Q8W resulted in Cmin,ss above 2.5 mg/L in 95.8% and 95.4% of patients, respectively. 240 mg Q8W and 480 mg Q10W resulted in Cmin,ss above 1.5 mg/L in 91.0% and 91.8% of patients, respectively. Selection of a 240 mg Q6W regimen would decrease by 3-fold the annual treatment costs compared to standard regimen of 240 mg Q2W (from 78,744€ to 26,248€ in France). CONCLUSIONS Clinical trials are warranted to confirm the non-inferiority of extended-interval compared to standard regimen.
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Affiliation(s)
- Alicja Puszkiel
- Université Paris Cité, Faculté de Pharmacie de Paris, INSERM UMR-S1144, Paris, France.
- Biologie du Médicament - Toxicologie, Cochin University Hospital, AP-HP, Paris, France.
| | - Guillaume Bianconi
- Biologie du Médicament - Toxicologie, Cochin University Hospital, AP-HP, Paris, France
| | - Blaise Pasquiers
- Université Paris Cité, Faculté de Pharmacie de Paris, INSERM UMR-S1144, Paris, France
- PhinC Development, Massy, France
| | | | - Jennifer Arrondeau
- Department of Medical Oncology, Cochin University Hospital, Institut du Cancer Paris CARPEM, AP-HP, Paris, France
| | - Pascaline Boudou-Rouquette
- Department of Medical Oncology, Cochin University Hospital, Institut du Cancer Paris CARPEM, AP-HP, Paris, France
| | - Marie-Claire Bretagne
- Department of Pharmacology, Pharmacovigilance Unit, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Joe-Elie Salem
- Department of Pharmacology, Pharmacovigilance Unit, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
- INSERM, CIC-1901, Sorbonne Université, Paris, France
| | - Xavier Declèves
- Université Paris Cité, Faculté de Pharmacie de Paris, INSERM UMR-S1144, Paris, France
- Biologie du Médicament - Toxicologie, Cochin University Hospital, AP-HP, Paris, France
| | - Michel Vidal
- Biologie du Médicament - Toxicologie, Cochin University Hospital, AP-HP, Paris, France
- Université Paris Cité, Faculté de Pharmacie de Paris, UMR8038 CNRS CiTCoM, U1268 INSERM, CARPEM, Paris, France
| | - Nora Kramkimel
- Department of Dermatology, Cochin University Hospital, AP-HP, Paris, France
| | - Sarah Guegan
- Department of Dermatology, Cochin University Hospital, AP-HP, Paris, France
| | - Selim Aractingi
- Department of Dermatology, Cochin University Hospital, AP-HP, Paris, France
| | - Olivier Huillard
- Department of Medical Oncology, Cochin University Hospital, Institut du Cancer Paris CARPEM, AP-HP, Paris, France
| | - Jérôme Alexandre
- Department of Medical Oncology, Cochin University Hospital, Institut du Cancer Paris CARPEM, AP-HP, Paris, France
- Université Paris Cité, INSERM, Centre de Recherche des Cordeliers, Équipe labélisée Ligue Contre le Cancer, CNRS SNC 5096, Sorbonne Université, Paris, France
| | - Marie Wislez
- Department of Pneumology, Cochin University Hospital, AP-HP, Paris, France
| | - François Goldwasser
- Department of Medical Oncology, Cochin University Hospital, Institut du Cancer Paris CARPEM, AP-HP, Paris, France
- Université Paris Cité, Faculté de Médecine, INSERM, U1016, Institut Cochin, Paris, France
| | - Benoit Blanchet
- Biologie du Médicament - Toxicologie, Cochin University Hospital, AP-HP, Paris, France
- Université Paris Cité, Faculté de Pharmacie de Paris, UMR8038 CNRS CiTCoM, U1268 INSERM, CARPEM, Paris, France
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Yang LY, Li JR, Chen CS, Cheng CL, Hung SC, Chiu KY, Yang CK, Hsu CY, Wang SS. Cost-effectiveness of immune checkpoint inhibitors in treating metastatic urothelial cancer. Front Pharmacol 2024; 15:1281654. [PMID: 38595923 PMCID: PMC11002236 DOI: 10.3389/fphar.2024.1281654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 02/19/2024] [Indexed: 04/11/2024] Open
Abstract
Objectives: Immune checkpoint inhibitor (ICI) is an important treatment option for metastatic urothelial carcinoma (mUC) patients. A lot of clinical evidence proved the survival benefits of ICI, but cost-effectiveness of the treatment remains unclear. This study evaluates the cost-effectiveness of the ICIs treatment in different sequences among mUC patients. Methods: We retrospectively analyzed mUC patients who had been treated at our hospital between January 2016 and December 2020. These patients received chemotherapy with or without ICI treatment (Pembrolizumab, Atezolizumab, Nivolumab, Durvalumab, or Avelumab). The patients were divided into three different groups: receiving chemotherapy alone, receiving a combination of first-line ICI and chemotherapy (ICI combination therapy), and receiving chemotherapy as the first-line treatment followed by second-line ICI therapy (Subsequent ICI therapy). The primary endpoint was cost per life day, while lifetime medical costs and overall survival were also evaluated. Results: The 74 enrolled patients had a median age of 67.0 years, with 62.2% being male. Of these patients, 23 had received chemotherapy only, while the remaining patients had received combined therapy with ICI in either first-line or as subsequent agents (37 patients had ever received atezolizumab, 18 pembrolizumab, 1 Durvalumab, 1 Nivolumab, and 1 Avelumab separately.). Fifty-five patients (74.3%, 55/74) received cisplatin amongst all the patients who underwent chemotherapy. Median overall survival was 27.5 months (95% CI, 5.2-49.9) in the first-line ICI combination therapy group, and 8.9 months (95% CI, 7.1-10.8) in the chemotherapy only. Median overall survival for the subsequent ICI therapy group was not reached. The median lifetime cost after metastatic UC diagnosis was USD 31,221. The subsequent ICI therapy group had significantly higher costs when compared with the ICI combination therapy group (155.8 USD per day, [IQR 99.0 to 220.5] v 97.8 USD per day, [IQR 60.8 to 159.19], p = 0.026). Higher insurance reimbursement expenses for the subsequent ICI therapy group were observed when compared with the ICI combination therapy group. Conclusion: Our real-world data suggests that first line use of ICI combined with chemotherapy demonstrates better cost-effectiveness and similar survival outcomes for mUC patients, when compared with subsequent ICI therapy after chemotherapy.
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Affiliation(s)
- Li-Yu Yang
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jian-Ri Li
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Division of Surgical Intensive Care Unit, Department of Intensive Care, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Medicine and Nursing, Hungkuang University, Taichung, Taiwan
- Institute of Biomedical Science, National Chung Hsing University, Taichung, Taiwan
| | - Chuan-Shu Chen
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Chen-Li Cheng
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Sheng-Chun Hung
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Kun-Yuan Chiu
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Applied Chemistry, National Chi Nan University, Nantou, Taiwan
| | - Cheng-Kuang Yang
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chiann-Yi Hsu
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Shian-Shiang Wang
- Department of Urology, Taichung Veterans General Hospital, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Applied Chemistry, National Chi Nan University, Nantou, Taiwan
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Contieri R, Martini A, Mertens LS, Giannatempo P, Hurle R, Witjes JA, Ribal MJ, van Rhijn BWG, Malavaud B. The Financial Burden of Guideline-recommended Cancer Medications for Metastatic Urothelial Carcinoma. Eur Urol Focus 2024:S2405-4569(23)00292-4. [PMID: 38199886 DOI: 10.1016/j.euf.2023.12.002] [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: 10/09/2023] [Revised: 11/28/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Bladder cancer is a significant global health concern owing to its prevalence, negative impact on quality of life, and high treatment costs. Treatment for metastatic urothelial carcinoma (mUC) traditionally relies on platinum-based chemotherapy regimens. However, clinical trial results have led to the approval of immune checkpoint inhibitors (ICIs) as viable treatment options. We assessed the escalating costs and economic viability of mUC treatment guidelines in Europe. We used a pragmatic approach that involved: (1) collection of the costs of the recommended medications in the five most populous European countries; (2) conversion of the costs into international dollars to account for differences in purchasing power parity among countries; (3) evaluation of the cost trends over time; and (4) comparison of the medication costs to World Health Organization thresholds. Introduction of ICIs in European guidelines substantially increased the cost of medications for mUC. Intriguingly, important differences across European countries emerged: the annual cost of medications was twofold higher in Italy than in France and the UK. Despite limitations, our study sheds light on the escalating costs and economic challenges of mUC treatment, and highlights the need for assessments of sustainable and cost-effective management approaches. PATIENT SUMMARY: We looked at the costs of treatments for metastatic bladder cancer and found that costs have been rising over time, especially with the introduction of new immune therapies, with notable differences among European countries. While these new treatments improve patient outcomes, they also come with a high price tag, which could strain health care budgets. Our results suggest that cost-effectiveness studies will be essential in determining the best and most sustainable treatment strategies in the future.
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Affiliation(s)
- Roberto Contieri
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy; Department of Urology, IRCCS Humanitas Research Hospital, Rozzano, Italy; Department of Surgical Oncology (Urology), Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Alberto Martini
- Department of Urology, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Laura S Mertens
- Department of Surgical Oncology (Urology), Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - Patrizia Giannatempo
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Rodolfo Hurle
- Department of Urology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - J Alfred Witjes
- Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Maria J Ribal
- Department of Urology, Uro-Oncology Unit, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain
| | - Bas W G van Rhijn
- Department of Surgical Oncology (Urology), Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Urology, Caritas St. Josef Medical Center, University of Regensburg, Regensburg, Germany
| | - Bernard Malavaud
- Department of Urology, Institut Universitaire du Cancer Toulouse-Oncopôle, Toulouse, France.
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Marolleau S, Mogenet A, Boeri C, Hamimed M, Ciccolini J, Greillier L. Killing a fly with a sledgehammer: Atezolizumab exposure in real-world lung cancer patients. CPT Pharmacometrics Syst Pharmacol 2023; 12:1795-1803. [PMID: 38011601 PMCID: PMC10681534 DOI: 10.1002/psp4.13063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/25/2023] [Accepted: 10/02/2023] [Indexed: 11/29/2023] Open
Abstract
Atezolizumab is an anti-PDL1 approved for treating lung cancer. A threshold of 6 μg/mL in plasma has been associated with target engagement. The extent to which patients could be overexposed with the standard 1200 mg q3w dosing remains unknown. Here, we monitored atezolizumab peak and trough levels in 27 real-world patients with lung cancer as part of routine therapeutic drug monitoring. Individual pharmacokinetic (PK) parameters were calculated using a population approach and optimal dosing-intervals were simulated with respect to the target trough levels. No patient had plasma levels below 6 μg/mL. The results showed that the mean trough level after the first treatment was 78.3 ± 17 μg/mL, that is, 13 times above the target concentration. The overall response rate was 55.5%. Low-grade immune-related adverse events was observed in 37% of patients. No relationship was found between exposure metrics of atezolizumab (i.e., minimum plasma concentration, maximum plasma concentration, and area under the curve) and pharmacodynamic end points (i.e., efficacy and toxicity). Further simulations suggest that the dosing interval could be extended from 21 days to 49 up to 136 days (mean: 85.7 days, i.e., q12w), while ensuring plasma levels still above the 6 μg/mL target threshold. This observational, real-world study suggests that the standard 1200 mg q3w fixed-dose regimen of atezolizumab results in significant overexposure in all the patients. This was not associated with increased side effects. As plasma levels largely exceed pharmacologically active concentrations, interindividual variability in PK parameters did not impact efficacy. Our data suggest that dosing intervals could be markedly extended with respect to the target threshold associated with efficacy.
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Affiliation(s)
- Sophie Marolleau
- COMPO, Inserm U1068 Centre de Recherche en Cancérologie de Marseille & Inria Sophia AntipolisMarseilleFrance
| | - Alice Mogenet
- Oncologie multidisciplinaire et innovations thérapeutiquesNord University Hospital of MarseilleMarseilleFrance
| | - Clara Boeri
- COMPO, Inserm U1068 Centre de Recherche en Cancérologie de Marseille & Inria Sophia AntipolisMarseilleFrance
| | - Mourad Hamimed
- COMPO, Inserm U1068 Centre de Recherche en Cancérologie de Marseille & Inria Sophia AntipolisMarseilleFrance
| | - Joseph Ciccolini
- COMPO, Inserm U1068 Centre de Recherche en Cancérologie de Marseille & Inria Sophia AntipolisMarseilleFrance
| | - Laurent Greillier
- COMPO, Inserm U1068 Centre de Recherche en Cancérologie de Marseille & Inria Sophia AntipolisMarseilleFrance
- Oncologie multidisciplinaire et innovations thérapeutiquesNord University Hospital of MarseilleMarseilleFrance
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