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2.
Immunotherapy ; 13(8): 661-668, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33876668

RESUMEN

Aim: To evaluate the cost-effectiveness of ribociclib plus fulvestrant versus fulvestrant in hormone receptor-positive/human EGF receptor 2-negative advanced breast cancer. Materials & methods: A three-state Markov model was developed to evaluate the costs and effectiveness over 10 years. Direct costs and utility values were obtained from previously published studies. We calculated incremental cost-effectiveness ratio to evaluate the cost-effectiveness at a willingness-to-pay threshold of $150,000 per additional quality-adjusted life year. Results: The incremental cost-effectiveness ratio was $1,073,526 per quality-adjusted life year of ribociclib plus fulvestrant versus fulvestrant. Conclusions: Ribociclib plus fulvestrant is not cost-effective versus fulvestrant in the treatment of advanced hormone receptor-positive/human EGF receptor 2-negative breast cancer. When ribociclib is at 10% of the full price, ribociclib plus fulvestrant could be cost-effective.


Asunto(s)
Aminopiridinas/economía , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Neoplasias de la Mama/tratamiento farmacológico , Fulvestrant/economía , Purinas/economía , Aminopiridinas/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/metabolismo , Análisis Costo-Beneficio , Femenino , Fulvestrant/administración & dosificación , Humanos , Cadenas de Markov , Purinas/administración & dosificación , Receptor ErbB-2/biosíntesis , Receptores de Estrógenos/biosíntesis , Receptores de Progesterona/biosíntesis
3.
Clin Breast Cancer ; 21(4): e479-e488, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33676870

RESUMEN

BACKGROUND: We conducted a cost-effectiveness analysis incorporating recent phase III clinical trial (MONALEESA-7) data to evaluate the cost-effectiveness of ribociclib (RIB) as a first-line treatment for premenopausal women with hormone receptor (HR)-positive and human epidermal growth factor receptor 2 (HER2)-negative advanced breast cancer (ABC) from the United States healthcare payer perspective. In addition, because RIB has not been marketed in China, we identified the range of drug costs for which RIB could be considered cost effective from a Chinese healthcare system perspective. PATIENTS AND METHODS: A Markov model was developed to evaluate the cost-effectiveness of adding RIB to endocrine therapy over a lifetime. The clinical outcomes and utility data were obtained from published literature. Costs data were obtained from United States and Chinese official websites, and we determined the potential price for RIB in China based on its price in the United States. The main outcomes of this study were the incremental cost-effectiveness ratio (ICER) and quality-adjusted life-years (QALYs). RESULTS: The model projected that mean outcome was better with RIB and endocrine combined (3.83366 QALYs) than with endocrine therapy alone (2.71203 QALYs). In the United States, RIB and endocrine therapy cost an additional $604,960.06, resulting in an ICER of $539,357.95/QALY compared with endocrine monotherapy. Subgroup analyses indicated that, in China, the projected mean outcomes were better for RIB and endocrine therapy (6.37 QALYs) than for endocrine monotherapy (2.71 QALYs). The corresponding incremental costs were $224,731.88943. Thus, the ICER comparing RIB and endocrine therapy with endocrine therapy alone represented a $61,454.96/QALY gain. CONCLUSION: Additional use of RIB is estimated to not be cost effective as a first-line treatment for premenopausal women with HR-positive, HER2-negative ABC in the United States. A value-based price for the cost of RIB is less than $31.74/200 mg for China.


Asunto(s)
Aminopiridinas/administración & dosificación , Aminopiridinas/economía , Antineoplásicos Hormonales/administración & dosificación , Antineoplásicos Hormonales/economía , Neoplasias de la Mama/tratamiento farmacológico , Costos de los Medicamentos , Purinas/administración & dosificación , Purinas/economía , Neoplasias de la Mama/patología , China , Análisis Costo-Beneficio , Quimioterapia Combinada , Antagonistas de Estrógenos/administración & dosificación , Antagonistas de Estrógenos/economía , Moduladores de los Receptores de Estrógeno/administración & dosificación , Moduladores de los Receptores de Estrógeno/economía , Femenino , Humanos , Cadenas de Markov , Premenopausia , Años de Vida Ajustados por Calidad de Vida , Receptor ErbB-2 , Estados Unidos
4.
J Manag Care Spec Pharm ; 27(3): 327-338, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33645243

RESUMEN

BACKGROUND: The 2015 American Society of Clinical Oncology guidelines recommend first-line treatment of hormone receptor (HR)-positive breast cancer with endocrine therapy plus or minus palbociclib, a selective cyclin-dependent kinase (CDK)4/6 inhibitor. In 2018, the U.S. Food and Drug Administration approved ribociclib, a new orally available selective CDK4/6 inhibitor. While gains in progression-free survival (PFS) and overall survival (OS) from ribociclib are important for clinical and treatment outcomes, trade-offs in adverse events (AEs) and additional costs necessitate cost-effectiveness analysis (CEA) to assist consideration by third-party payer systems, physicians, and patients. OBJECTIVES: To (a) develop a Markov model and (b) determine the cost-effectiveness of ribociclib plus endocrine therapy versus endocrine therapy alone as treatment for premenopausal and perimenopausal patients with HR-positive, human epidermal growth factor receptor 2 (HER2)-negative breast cancer. METHODS: A lifetime 3-state Markov model ("stable," "progressed," and "dead" health states) was developed using a U.S. payer perspective. Transition probabilities were calculated based on OS and PFS outcomes from the randomized controlled phase 3 trial MONALEESA-7. These Kaplan-Meier curves were extended to lifetime by estimating best-fit distributions using loglogistic distribution for ribociclib curves and Weibull distribution for placebo curves. Costs were obtained from national data sources using 2019 U.S. dollars (USD) and discounted by 3%. Utilities were obtained via published breast cancer literature and were included for each health state and for time spent with each AE. Results were expressed as an incremental cost-effectiveness ratio (ICER) expressed as USD per quality-adjusted life-year (QALY) saved. Treatments were assumed to be cost-effective based on a willingness-to-pay (WTP) threshold of $150,000 per QALY gained. Base-case, 1-way sensitivity tornado diagrams and probabilistic sensitivity analyses demonstrated changes in the ICER and were driven by the cost of ribociclib and the utility of remaining in the stable health state. RESULTS: Ribociclib plus endocrine therapy was cost-effective at an ICER of $124,513 per QALY when compared with endocrine therapy alone at a WTP threshold of $150,000. The ribociclib plus endocrine therapy arm had an effectiveness of 5.28 QALYs and a total cost of $385,112, while placebo plus endocrine therapy provided only 2.46 QALYs at a lower total cost of $67.246. The model was sensitive to the cost of ribociclib and the utility of time spent in the stable health state. Probabilistic sensitivity analysis demonstrated that endocrine therapy alone was cost-effective until a WTP of $125,000 and was cost-effective 72% of the time at the WTP threshold. CONCLUSIONS: Ribociclib plus endocrine therapy is more cost-effective than endocrine therapy alone. Professionals in managed care settings should consider the pharmacoeconomic benefits of ribociclib for the treatment of HR-positive, HER2-negative breast cancer as they make value-based formulary decisions. Further CEAs should be considered as direct treatment comparison trials between CDK4/6 inhibitors are completed in the future. DISCLOSURES: No outside funding supported this study. The authors have nothing to disclose.


Asunto(s)
Aminopiridinas/uso terapéutico , Antineoplásicos Hormonales/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Purinas/uso terapéutico , Adolescente , Adulto , Aminopiridinas/administración & dosificación , Aminopiridinas/economía , Antineoplásicos Hormonales/administración & dosificación , Antineoplásicos Hormonales/economía , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/mortalidad , Análisis Costo-Beneficio , Supervivencia sin Enfermedad , Femenino , Humanos , Persona de Mediana Edad , Purinas/administración & dosificación , Purinas/economía , Años de Vida Ajustados por Calidad de Vida , Receptor ErbB-2/metabolismo , Receptores de Estrógenos/metabolismo , Resultado del Tratamiento , Estados Unidos , Adulto Joven
5.
Cancer Rep (Hoboken) ; 4(1): e1308, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33085843

RESUMEN

BACKGROUND: CDK4/6 inhibitors have shown promising results for treating advanced breast cancer (ABC) and are routinely used in Singapore. In view of their high costs, it is important to assess their relative value compared to existing standards of care in the local setting. AIMS: This study evaluates the cost-effectiveness of adding ribociclib to goserelin and a nonsteroidal aromatase inhibitor or tamoxifen as initial therapy for premenopausal women with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2-) ABC in Singapore. METHODS: A partitioned survival model with four health states (progression-free on first-line treatment, progression-free on second-line treatment, progressed disease, and death) was developed from a healthcare system perspective over a 10-year time horizon. Key clinical inputs were derived from the MONALEESA-7 trial, and survival curves were extrapolated beyond the trial period. Health state utilities were derived from the literature and direct medical costs were obtained from local public healthcare institutions. A discount rate of 3% was applied to both costs and outcomes. One-way deterministic and probabilistic sensitivity analyses were conducted to explore uncertainties. RESULTS: The base-case analysis resulted in an incremental cost-effectiveness ratio (ICER) of SGD197, 667 per quality-adjusted life-year. Sensitivity analyses showed that the ICER was sensitive to the survival parametric distribution, ribociclib price, time horizon, and utility weights used. Even when these were varied, ICERs remained high and not cost-effective in the local context. CONCLUSION: At its current price, adding ribociclib to endocrine therapy is unlikely to be cost-effective in Singapore for HR+, HER2- ABC. Results from this study are useful to inform future funding decisions for CDK4/6 inhibitors alongside other factors including clinical effectiveness, safety, and budget impact considerations.


Asunto(s)
Aminopiridinas/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Neoplasias de la Mama/terapia , Costos de los Medicamentos/estadística & datos numéricos , Purinas/administración & dosificación , Aminopiridinas/economía , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Inhibidores de la Aromatasa/administración & dosificación , Inhibidores de la Aromatasa/economía , Neoplasias de la Mama/economía , Neoplasias de la Mama/mortalidad , Quimioterapia Adyuvante , Ensayos Clínicos Fase III como Asunto , Femenino , Estudios de Seguimiento , Goserelina/administración & dosificación , Goserelina/economía , Humanos , Estimación de Kaplan-Meier , Mastectomía , Persona de Mediana Edad , Estudios Multicéntricos como Asunto , Terapia Neoadyuvante/métodos , Premenopausia , Supervivencia sin Progresión , Purinas/economía , Años de Vida Ajustados por Calidad de Vida , Ensayos Clínicos Controlados Aleatorios como Asunto , Singapur/epidemiología , Tasa de Supervivencia , Resultado del Tratamiento
6.
Expert Rev Pharmacoecon Outcomes Res ; 20(2): 221-228, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32212867

RESUMEN

Objectives: The approval in more than 50 countries of baricitinib, an oral Janus Kinase inhibitor for the treatment of Rheumatoid Arthritis (RA), warrants a framework for corresponding economic evaluations. To develop a comprehensive economic model assessing the cost-effectiveness of baricitinib for the treatment of moderately-to-severely active RA patients in comparison to other relevant treatments, considering the natural history of the disease, real world treatment patterns, and clinical evidence from the baricitinib trials.Methods: A systematic literature review of previously developed models in RA was conducted to inform the model structure, key modeling assumptions and data inputs. Consultations with rheumatologists were undertaken to validate the modeling approach and underlying assumptions.Results: A discrete event simulation model was developed to international best practices with flexibility to assess the cost-effectiveness of baricitinib over a lifetime in a variety of markets. The model incorporates treatment sequencing to adequately reflect treatment pathways in clinical practice. Outcomes assessed include cost and quality-adjusted life years, allowing for a full incremental analysis of cost-effectiveness of competing treatments and treatment sequences.Conclusion: The economic model developed provides a robust framework for future analyses assessing the cost-effectiveness of baricitinib for the treatment of RA in specific country settings.


Asunto(s)
Artritis Reumatoide/tratamiento farmacológico , Azetidinas/administración & dosificación , Inhibidores de las Cinasas Janus/administración & dosificación , Modelos Económicos , Purinas/administración & dosificación , Pirazoles/administración & dosificación , Sulfonamidas/administración & dosificación , Administración Oral , Antirreumáticos/administración & dosificación , Antirreumáticos/economía , Artritis Reumatoide/economía , Artritis Reumatoide/patología , Azetidinas/economía , Simulación por Computador , Análisis Costo-Beneficio , Humanos , Inhibidores de las Cinasas Janus/economía , Purinas/economía , Pirazoles/economía , Años de Vida Ajustados por Calidad de Vida , Índice de Severidad de la Enfermedad , Sulfonamidas/economía
7.
J Manag Care Spec Pharm ; 25(8): 859-866, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31347980

RESUMEN

BACKGROUND: Discarding unused drugs after dose changes or discontinuation can significantly affect pharmacy budgets. This is especially concerning for expensive oncology agents. However, few economic studies account for drug wastage, providing an inaccurate estimate of a drug's actual economic cost, cost-effectiveness, and value. OBJECTIVES: To (a) compare the economic impact of drug wastage between ribociclib and palbociclib-clinically similar oral medications for metastatic breast cancer-using 3 approaches (Markov model, pharmacy acquisition cost model, and a retrospective claims analysis) and (b) compare the modeling results with a published estimate of drug wastage for palbociclib from a claims analysis. METHODS: A Markov model and a pharmacy acquisitions cost model were developed to evaluate the economic impact of dose reductions for ribociclib and palbociclib over a 1-year time period. Data inputs were pharmacy costs (RED BOOK wholesale acquisition cost) and proportion of patients experiencing dose reductions from either ribociclib randomized clinical trials (MONALEESA-2, -3, or -7) or real-world observational data (Symphony Health retrospective claims analysis). The latter constituted the third approach for quantifying drug wastage. The economic impact of dose reductions for ribociclib and palbociclib in postmenopausal women with previously untreated HR-positive/HER2-negative advanced breast cancer was assessed. Drug wastage was defined as drug doses that could not be used by a patient following a dose reduction. The cost of drug wastage was defined as the cost associated with an unused drug resulting from a dose reduction. The predicted results from the 2 models were compared with a previously published claims analysis that estimated the effect of treatment costs and drug wastage for palbociclib based on the observed dosing patterns from the Symphony Health Solutions database. RESULTS: In the Markov model, relative to ribociclib, palbociclib users experienced drug wastage of $112,382 total, or $1,124 per treated patient, per year due to dose changes. In the pharmacy acquisition cost model, relative to ribociclib, palbociclib usage was associated with an increased cost of $7,196 per patient per year (based on a mid-cycle dose reduction) comprising dosing-based cost differences and drug wastage cost for palbociclib of $3,727. The previously published claims analysis found that palbociclib users experiencing a dose reduction had drug wastage costs of $5,471 per patient. CONCLUSIONS: In both models, dose reductions for ribociclib patients resulted in no wastage, since unused tablets could be administered in subsequent cycles, while dose reductions for palbociclib resulted in drug wastage and increased costs. The results from both models were consistent with previously published results from the claims analysis, demonstrating drug wastage costs for palbociclib. DISCLOSURES: This study received financial support from Novartis Pharmaceuticals, which has products approved for treatment of breast cancer. Tang was employed by Novartis during this study; Zacker and Dalal are employed by Novartis and own company stock. Biskupiak, Brixner, and Oderda received payment from Novartis for this study. Brixner serves as a consultant for Millcreek Outcomes Group and also declares consulting fees from Abbvie, AstraZeneca, Abbott, Becton Dickinson, and Xcenda, unrelated to this study.


Asunto(s)
Aminopiridinas/economía , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/economía , Utilización de Medicamentos/economía , Piperazinas/economía , Purinas/economía , Piridinas/economía , Aminopiridinas/uso terapéutico , Análisis Costo-Beneficio/economía , Costos de los Medicamentos , Estudios de Evaluación como Asunto , Femenino , Costos de la Atención en Salud , Humanos , Persona de Mediana Edad , Modelos Económicos , Piperazinas/uso terapéutico , Purinas/uso terapéutico , Piridinas/uso terapéutico , Ensayos Clínicos Controlados Aleatorios como Asunto , Estudios Retrospectivos
8.
Breast Cancer Res Treat ; 175(3): 775-779, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30847728

RESUMEN

PURPOSE: Three CDK4/6 inhibitors, palbociclib (PAL), ribociclib (RIB), and abemaciclib, when combined with letrozole (LET), have been approved as first-line therapy for postmenopausal women with metastatic HR+, HER2- breast cancer. However, an economic evaluation of these newer therapies is currently lacking. The purpose of this article is to evaluate the cost-effectiveness of PAL or RIB for the treatment of advanced HR+, HER2- breast cancer in the United States. METHODS: A Markov simulation model was constructed using data from published clinical trials evaluating PAL and RIB. Three simulated treatment strategies included PAL + LET, RIB + LET, or LET alone. The main outcome measures were simulated progression-free survival (PFS), overall survival (OS), costs, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios (ICERs). RESULTS: Simulated median OS was 38.9 months for PAL + LET and 33.0 months for LET alone. Simulated median OS for RIB + LET was 43.3 months. Compared to LET alone, PAL + LET provided an additional 0.48 QALYs, on average, with an ICER of $634,000 per QALY gained; RIB + LET provided an additional 0.86 QALYs, on average, with an ICER of $440,000 per QALY gained. At current prices, neither PAL nor RIB was cost-effective, assuming a willingness-to-pay threshold of $100,000 per QALY gained. To reach such a cost-effectiveness threshold, PAL and RIB prices must decrease by approximately 70%. CONCLUSION: Despite significant gains in progression-free survival over letrozole alone, the addition of palbociclib or ribociclib in the treatment of advanced HR+, HER2- breast cancer is not cost-effective in the United States given current drug prices.


Asunto(s)
Aminopiridinas/administración & dosificación , Neoplasias de la Mama/tratamiento farmacológico , Letrozol/administración & dosificación , Piperazinas/administración & dosificación , Purinas/administración & dosificación , Piridinas/administración & dosificación , Aminopiridinas/economía , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Neoplasias de la Mama/metabolismo , Análisis Costo-Beneficio , Femenino , Humanos , Letrozol/economía , Cadenas de Markov , Modelos Económicos , Piperazinas/economía , Purinas/economía , Piridinas/economía , Calidad de Vida , Receptor ErbB-2/metabolismo , Análisis de Supervivencia , Resultado del Tratamiento
9.
Breast ; 43: 1-6, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30342258

RESUMEN

BACKGROUND: The addition of ribociclib (RIB) to letrozole (LET) significantly increases progression free survival for patients with hormone-receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative advanced breast cancer (ABC). We identified the range of drug costs for which RIB could be considered cost effective from a Chinese perspective. METHODS: A discrete event simulation model was developed to model the treatment sequences among patients with ABC. Life years (LYs), quality-adjusted LYs (QALYs) and lifetime costs were estimated. Costs were estimated for Chinese health care systems. Three times the per capita gross domestic product (GDP) of China 2016 ($24,360) and three times the per capita GDP of Beijing city 2016 ($53,384) were used as the willingness-to-pay threshold. Probabilistic sensitivity analyses were performed. RESULTS: In the base case analysis, RIB + LET provided an incremental survival benefit of 0.631 LYs and 0.451 QALYs. When RIB costs less than $721 or $1170 per 4 weeks, there was a nearly 90% likelihood that the incremental cost-effectiveness ratio for RIB + LET would be less than $24,360 per QALY or $53,384 per QALY, respectively. CONCLUSION: A value-based price for the cost of RIB is $732 or $1170 per 4 weeks for China and Beijing City, respectively. Our study is helpful to inform the multilateral drug price negotiations in China that may be upcoming for RIB.


Asunto(s)
Aminopiridinas/economía , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Purinas/economía , Aminopiridinas/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/economía , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , China , Análisis Costo-Beneficio , Costos de los Medicamentos , Femenino , Humanos , Letrozol/administración & dosificación , Supervivencia sin Progresión , Purinas/administración & dosificación , Años de Vida Ajustados por Calidad de Vida , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo
10.
Breast ; 43: 81-84, 2019 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-30513476

RESUMEN

Three Cyclin Dependent Kinase 4/6 (CDK) inhibitors have been approved by the United Stated Food and Drug Administration for front line treatment of advanced hormone receptor positive breast cancer based on improvements in progression free survival against endocrine monotherapy. Two clinical trials have so far reported results on overall survival but both are negative. CDK inhibitors are usually tolerated well but they do add to inconvenience and cost - for example, grade III-IV neutropenia occur at a frequency of over 60% requiring frequent blood work at least during the initial months of treatment. These drugs cost over $ 13,500 for a 4-week cycle in the United States, and are responsible for billions of dollars annually in drug cost alone. Importantly, many women with metastatic breast cancer do well for a long time with endocrine therapy alone and CDK inhibitors do not have a predictive marker. Selective use of these agents in later lines may improve substantially the convenience and cost without compromise in overall outcome. However, with results demonstrating impressive improvements in PFS published in major medical journals coupled with patients' natural desire for "best available" options, the trend among oncologists is to prescribe these drugs as the default front-line treatment. In this commentary I caution readers against over interpretation of results from the CDK inhibitor trials, describe adverse consequences of routine front-line use, and explain why selective use in later line may yield a higher value.


Asunto(s)
Neoplasias de la Mama/tratamiento farmacológico , Quinasa 4 Dependiente de la Ciclina/antagonistas & inhibidores , Quinasa 6 Dependiente de la Ciclina/antagonistas & inhibidores , Inhibidores de Proteínas Quinasas/uso terapéutico , Aminopiridinas/economía , Aminopiridinas/uso terapéutico , Antineoplásicos Hormonales/uso terapéutico , Bencimidazoles/economía , Bencimidazoles/uso terapéutico , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Análisis Costo-Beneficio , Costos de los Medicamentos , Femenino , Humanos , Neutropenia/inducido químicamente , Neutropenia/epidemiología , Piperazinas/economía , Piperazinas/uso terapéutico , Inhibidores de Proteínas Quinasas/economía , Purinas/economía , Purinas/uso terapéutico , Piridinas/economía , Piridinas/uso terapéutico , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo
11.
J Manag Care Spec Pharm ; 24(6): 514-523, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29799329

RESUMEN

BACKGROUND: U.S. regulatory approvals of the cyclin-dependent kinase 4 and 6 (CDK 4/6) inhibitors ribociclib and palbociclib as add-ons to letrozole greatly enhance the prospects for treating postmenopausal women with hormone receptor-positive (HR+)/human epidermal receptor 2-negative (HER2-) advanced or metastatic breast cancer. Clinical trials have established that the combination of a CDK 4/6 inhibitor with letrozole can significantly improve progression-free survival (PFS) versus letrozole monotherapy and is safe and well tolerated. Cost-effectiveness studies are required to inform payers and clinical decision makers on the money value of combination treatment in clinical practice. OBJECTIVE: To evaluate the cost-effectiveness of ribociclib plus letrozole versus palbociclib plus letrozole and versus letrozole monotherapy in the first-line treatment of postmenopausal women with HR+/HER2- advanced or metastatic breast cancer from a U.S. private third-party payer perspective. METHODS: A partitioned survival model including 3 health states (progression free, with either overall response or stable disease; progressed disease; and death) simulated lifetime costs and outcomes over a 40-year lifetime horizon with a 1-month cycle length. Clinical efficacy data (PFS and overall survival [OS]) were derived from a phase III trial of ribociclib plus letrozole (MONALEESA-2; NCT01958021), a phase II trial of palbociclib plus letrozole (PALOMA-1; NCT00721409), and a Bayesian network meta-analysis. Health care costs included drug acquisition and monitoring, disease management, subsequent therapies, and serious drug-related adverse events. Effectiveness was measured in life-years, derived from survival projections, and in quality-adjusted life-years (QALYs), calculated from time spent in each state combined with health-state utility values. A one-way deterministic sensitivity analysis explored the impact of uncertainty in key model parameters on results, and probabilistic uncertainty was assessed through a Monte Carlo probabilistic sensitivity analysis. RESULTS: Ribociclib plus letrozole was dominant versus palbociclib plus letrozole, with a cost saving of $43,037 and a gain of 0.086 QALYs. Compared with letrozole monotherapy, ribociclib plus letrozole was associated with an incremental cost of $144,915 and an incremental QALY of 0.689, equating to an incremental cost-effectiveness ratio of $210,369 per QALY. Key model drivers included OS HRs for palbociclib plus letrozole versus letrozole and for ribociclib plus letrozole versus letrozole, the PFS HR for palbociclib plus letrozole versus letrozole, PD health-state costs, utility of response, and cost discount rate. The probabilities that ribociclib plus letrozole was cost-effective versus letrozole at thresholds of $50,000, $100,000 and $200,000 per QALY gained were 1.6%, 6.3%, and 50.5%, respectively. CONCLUSIONS: In the United States, ribociclib plus letrozole is a cost-effective alternative to palbociclib plus letrozole for the first-line treatment of postmenopausal women with HR+/HER2- advanced or metastatic breast cancer. Ribociclib plus letrozole is also cost-effective versus letrozole monotherapy at willingness-to-pay thresholds greater than $198,000 per QALY (for probabilistic analysis). DISCLOSURES: Funding for this study was provided by Novartis, which manufactures ribociclib and provided input on the study design and data collection, analysis, and interpretation. Mistry, May, Suri, and Young are employees of PAREXEL. Tang, Mishra, D. Bhattacharyya, and Dalal are employees of Novartis. S. Bhattacharyya was an employee of Novartis during the study period. Tang and Dalal hold stock in Novartis. Brixner, Oderda, and Biskupiak were paid by Millcreek Outcomes Group as consultants for work on this project. Brixner has also consulted for AstraZeneca, UCB, Regeneron, and Abbott.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/economía , Neoplasias de la Mama/tratamiento farmacológico , Análisis Costo-Beneficio , Inhibidores de Proteínas Quinasas/economía , Aminopiridinas/economía , Aminopiridinas/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias de la Mama/economía , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Supervivencia sin Enfermedad , Femenino , Humanos , Letrozol , Modelos Biológicos , Modelos Económicos , Nitrilos/economía , Nitrilos/uso terapéutico , Piperazinas/economía , Piperazinas/uso terapéutico , Posmenopausia , Inhibidores de Proteínas Quinasas/uso terapéutico , Purinas/economía , Purinas/uso terapéutico , Piridinas/economía , Piridinas/uso terapéutico , Receptor ErbB-2/metabolismo , Receptores de Estrógenos/metabolismo , Receptores de Progesterona/metabolismo , Análisis de Supervivencia , Resultado del Tratamiento , Triazoles/economía , Triazoles/uso terapéutico , Estados Unidos/epidemiología
12.
Cancer Biol Ther ; 19(7): 636-643, 2018 07 03.
Artículo en Inglés | MEDLINE | ID: mdl-29584544

RESUMEN

Novel therapies including kinase inhibitors (KI) have led to high and durable response in patients with chronic lymphocytic leukemia (CLL), however, some patients stop therapy. This study evaluates reasons for treatment changes among CLL patients who stopped KI in real-world practice. Sixty-nine US oncologists/hematologists provided patient-level data abstracted from charts of CLL adult patients who initiated a KI and later (1) switched to another anti-neoplastic regimen (Switched cohort), (2) discontinued the KI and remained untreated (Discontinued cohort), or (3) restarted the same KI after an interruption of ≥60 days (Restarted cohort). Demographics, clinical/treatment characteristics, and reasons for stopping, restarting, and switching the KI therapy were described. In the Switched cohort, reasons for stopping included disease progression (72.5%), low/no disease activity (3.9%), adverse event [AE]/ intolerance/comorbidity (15.7%), and planned cellular therapies (7.9%). In the Discontinued cohort, approximately half (46.0%) of patients stopped KI therapy because they were terminally ill/died, or were moved to best supportive care - these patients were older, had more severe disease, and high comorbidity burden. The other half (54.0% of patients) stopped due to low/no disease activity (24.0%), AEs/toxicity (12.0%), or patient-requested drug holiday (18.0%). In the Restarted cohort, the most common reasons for stopping KIs were patient request (37.3%), AEs/intolerance (31.4%), and economic reasons (10%). Patients restarted when disease progressed (60.8%) or when they recovered from the AE (33%). Reasons for KI stop and subsequent treatment patterns were varied and multifactorial, suggesting heterogeneous disease management and a need for more evidence around supporting strategies and physician education.


Asunto(s)
Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Cumplimiento de la Medicación/estadística & datos numéricos , Inhibidores de Proteínas Quinasas/uso terapéutico , Purinas/uso terapéutico , Pirazoles/uso terapéutico , Pirimidinas/uso terapéutico , Quinazolinonas/uso terapéutico , Adenina/análogos & derivados , Factores de Edad , Anciano , Anciano de 80 o más Años , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Sustitución de Medicamentos/economía , Sustitución de Medicamentos/estadística & datos numéricos , Femenino , Humanos , Leucemia Linfocítica Crónica de Células B/mortalidad , Leucemia Linfocítica Crónica de Células B/patología , Masculino , Persona de Mediana Edad , Piperidinas , Inhibidores de Proteínas Quinasas/economía , Purinas/economía , Pirazoles/economía , Pirimidinas/economía , Quinazolinonas/economía , Resultado del Tratamiento
13.
Eur J Haematol ; 100(3): 264-272, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29226472

RESUMEN

OBJECTIVE: To evaluate the incremental cost-utility ratio (ICUR) of idelalisib in combination with rituximab (IR) versus rituximab monotherapy (R) in the treatment of patients with relapsed or refractory (R/R) chronic lymphocytic leukaemia (CLL), from the Spanish National Health System (NHS) perspective. METHODS: A partitioned survival Markov model for a lifetime horizon (30 years) was developed to estimate costs (€, 2016) and quality-adjusted life years (QALY) with IR and R. Initial cohort included patients with CLL receiving a second or subsequent line (2L) of treatment with IR or R. Survival data were based on CLL clinical trial. Drug, administration, monitoring, adverse events and clinical management of CLL costs were included in the model. Costs and outcomes were discounted using a 3% annually. Deterministic and probabilistic sensitivity analyses (PSA) were performed. RESULTS: Compared to R, 2L IR treatment resulted in QALY gain of 3.147 (4.965 versus 1.818). Total costs were €118 254 for IR versus €23 874 for R. ICUR was €29 990/QALY gained with IR versus R. In the PSA, IR was cost-effective in 78% of iterations using a threshold of €45 000/QALY. CONCLUSION: IR can be considered a cost-effective treatment compared to R, in the treatment of R/R CLL patients for the Spanish NHS.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/economía , Análisis Costo-Beneficio , Leucemia Linfocítica Crónica de Células B/economía , Purinas/economía , Quinazolinonas/economía , Rituximab/economía , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Método Doble Ciego , Esquema de Medicación , Femenino , Costos de la Atención en Salud , Humanos , Leucemia Linfocítica Crónica de Células B/diagnóstico , Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Leucemia Linfocítica Crónica de Células B/mortalidad , Masculino , Persona de Mediana Edad , Purinas/uso terapéutico , Años de Vida Ajustados por Calidad de Vida , Quinazolinonas/uso terapéutico , Recurrencia , Rituximab/uso terapéutico , España , Análisis de Supervivencia
15.
Pharmacotherapy ; 37(6): 657-661, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-28475259

RESUMEN

STUDY OBJECTIVE: To compare the frequency of adverse events in patients undergoing myocardial perfusion imaging (MPI) with either regadenoson or dipyridamole. DESIGN: Single-center, retrospective cohort study. SETTING: Large community teaching hospital. PATIENTS: A total of 568 adults who underwent single-photon emission tomography MPI with either regadenoson (284 patients) or dipyridamole (284 patients) as a vasodilator agent, following an institution conversion from regadenoson to dipyridamole in the MPI protocol on July 15, 2013, for cost-saving purposes. MEASUREMENTS AND MAIN RESULTS: Data were collected from the patients' electronic medical records. The primary endpoint was the composite occurrence of any documented adverse event in each group. Secondary endpoints were individual components of the primary endpoint, reason for termination of the MPI examination (protocol completion or premature end due to an adverse event), use of an interventional agent to an treat adverse event, and cost-related outcomes. A higher proportion of patients in the regadenoson group experienced an adverse event than those who received dipyridamole (84.9% vs 56.7%, p<0.0001). None of the patients in either group required early MPI study termination due to an adverse event. No significant differences were noted between groups regarding use of aminophylline or other interventions to treat adverse events. The overall drug cost savings in the postconversion dipyridamole group was $51,526. CONCLUSION: Dipyridamole was associated with fewer adverse events than regadenoson in patients undergoing MPI. Dipyridamole offers a safe and cost-effective alternative to regadenoson for cardiac imaging studies.


Asunto(s)
Agonistas del Receptor de Adenosina A2/efectos adversos , Dipiridamol/efectos adversos , Imagen de Perfusión Miocárdica/efectos adversos , Purinas/efectos adversos , Pirazoles/efectos adversos , Vasodilatadores/efectos adversos , Agonistas del Receptor de Adenosina A2/economía , Anciano , Estudios de Cohortes , Análisis Costo-Beneficio/métodos , Dipiridamol/economía , Disnea/inducido químicamente , Disnea/economía , Femenino , Enfermedades Gastrointestinales/inducido químicamente , Enfermedades Gastrointestinales/economía , Cardiopatías/diagnóstico por imagen , Cardiopatías/economía , Humanos , Masculino , Persona de Mediana Edad , Imagen de Perfusión Miocárdica/economía , Imagen de Perfusión Miocárdica/métodos , Purinas/economía , Pirazoles/economía , Estudios Retrospectivos , Vasodilatadores/economía
17.
Curr Opin Oncol ; 27(5): 365-70, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26154708

RESUMEN

PURPOSE OF REVIEW: Chronic lymphocytic leukemia (CLL) is frequently diagnosed after 71 years, though median age in published clinical trials with standard chemoimmunotherapy regimens in frontline or relapse setting is mostly below 70 years (58-71 years). Development of oral, less toxic and thus more affordable targeted therapies offers new therapeutic options in those patients deemed unfit for chemotherapy. RECENT FINDINGS: This review will discuss results of these new agents in the therapy of elderly patients. Apart from discussing the impact of chronological age, creatinine clearance and cumulative illness rating scale scores in the clinical outcomes, we will also discuss how individualized treatment decision-making should include more precise geriatric assessment tools to thoroughly assess life expectancy, anticipate tolerability, to avoid deleterious stress precipitating prefrail patients into definitive loss of capacity, with dramatic social and economic costs. SUMMARY: In the era of new targeted agents to fight cancers, we propose concepts to help us understand how elderly dedicated trial designs and geriatric assessment tools (apart from the evaluation of CLL biological risk factors) will undoubtedly revolutionize therapeutic approaches in everyday practice CLL patients.


Asunto(s)
Antineoplásicos/administración & dosificación , Evaluación Geriátrica , Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Terapia Molecular Dirigida/métodos , Purinas/administración & dosificación , Pirazoles/administración & dosificación , Pirimidinas/administración & dosificación , Quinazolinonas/administración & dosificación , Adenina/análogos & derivados , Anciano , Anciano de 80 o más Años , Antineoplásicos/economía , Comorbilidad , Análisis Costo-Beneficio , Creatinina/sangre , Toma de Decisiones , Humanos , Inmunoterapia , Leucemia Linfocítica Crónica de Células B/economía , Leucemia Linfocítica Crónica de Células B/mortalidad , Esperanza de Vida , Terapia Molecular Dirigida/economía , Selección de Paciente , Piperidinas , Medicina de Precisión , Purinas/economía , Pirazoles/economía , Pirimidinas/economía , Quinazolinonas/economía
18.
Arch Ital Urol Androl ; 87(1): 1-4, 2015 Mar 31.
Artículo en Inglés | MEDLINE | ID: mdl-25847887

RESUMEN

OBJECTIVE: We evaluated the effectiveness of pelvic vein embolization with aethoxysclerol in aero-block technique for the treatment of impotence due to venous leakage in men using sildenafil for intercourse. The aim of the procedure was to reduce the use of sildenafil. METHODS: A total of 96 patients with veno-occlusive dysfunction, severe enough for the need of PDE5 inhibitors for vaginal penetration, underwent pelvic venoablation with aethoxysclerol. The mean patient age was 53.5 years. Venous leaks were identified by Color Doppler Ultrasound after intracavernous alprostadil injection. Under local anesthesia a 20-gauge needle was inserted into the deep dorsal penile vein. The pelvic venogram was obtained through deep dorsal venography. Aethoxysclerol 3% as sclerosing agent was injected after air-block under Valsalva manoeuver. Success was defined as the ability to achieve vaginal insertion without the aid of any drugs, vasoactive injections, penile prosthesis, or vacuum device. Additionally, a pre- and post- therapy IIEF score and a digital overnight spontaneous erections protocol (OSEP) with the NEVA™-system was performed. RESULTS: At 3 month follow-up 77 out of 96 patients (80.21%) reported to have erections sufficient for vaginal insertion without the use of any drug or additional device. Four (4.17%) patients did not report any improvement. Follow up with color Doppler ultrasound revealed a new or persistent venous leakage in 8 (8.33%) of the patients. No serious complications occurred. CONCLUSIONS: Our new pelvic venoablation technique using aethoxysclerol in air-block technique was effective, minimally invasive, and cost-effective. All patients were able to perform sexual intercourse without the previously used dosage of PDE5 inhibitor. This new method may help in patients with contra-indications against PDE5 inhibitors, in patients who cannot afford the frequent usage of expensive oral medication or those who do not fully respond to PDE5-inhibitors.


Asunto(s)
Aire , Impotencia Vasculogénica/terapia , Erección Peniana , Pene/irrigación sanguínea , Polietilenglicoles/administración & dosificación , Soluciones Esclerosantes/administración & dosificación , Maniobra de Valsalva , Trombosis de la Vena/terapia , Adulto , Anciano , Austria , Contraindicaciones , Análisis Costo-Beneficio , Estudios de Seguimiento , Humanos , Impotencia Vasculogénica/diagnóstico , Impotencia Vasculogénica/economía , Impotencia Vasculogénica/etiología , Impotencia Vasculogénica/fisiopatología , Italia , Masculino , Persona de Mediana Edad , Erección Peniana/efectos de los fármacos , Flebografía/métodos , Inhibidores de Fosfodiesterasa 5/administración & dosificación , Inhibidores de Fosfodiesterasa 5/economía , Piperazinas/administración & dosificación , Piperazinas/economía , Polidocanol , Polietilenglicoles/economía , Purinas/administración & dosificación , Purinas/economía , Calidad de Vida , Soluciones Esclerosantes/economía , Índice de Severidad de la Enfermedad , Citrato de Sildenafil , Sulfonamidas/administración & dosificación , Sulfonamidas/economía , Resultado del Tratamiento , Ultrasonografía Doppler en Color/métodos , Trombosis de la Vena/complicaciones , Trombosis de la Vena/economía
19.
J Oncol Pract ; 11(3): 252-8, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25804983

RESUMEN

PURPOSE: To evaluate the impact of approval of ibrutinib and idelalisib on pharmaceutical costs in the treatment of chronic lymphocytic leukemia (CLL) at the societal level and assess individual out-of-pocket costs under Medicare Part D. METHODS: Average wholesale price of commonly used CLL treatment regimens was ascertained from national registries. Using the population of Olmsted County, Minnesota, we identified the proportion of patients with newly diagnosed CLL who experience progression to the point of requiring treatment. Using these data, total pharmaceutical cost over a 10-year period after diagnosis was estimated for a hypothetic cohort of 100 newly diagnosed patients under three scenarios: before approval of ibrutinib and idelalisib (historical scenario), after approval of ibrutinib and idelalisib as salvage therapy (current scenarios A and B), and assuming use of ibrutinib as first-line treatment (potential future scenario). RESULTS: Estimated 10-year pharmaceutical costs for 100 newly diagnosed patients were as follows: $4,565,929 (approximately $45,659 per newly diagnosed patient and $157,446 per treated patient) for the historical scenario, $7,794,843 (approximately $77,948 per newly diagnosed patient and $268,788 per treated patient) for current scenario A, $6,309,162 (approximately $63,092 per newly diagnosed patient and $217,557 per treated patient) for current scenario B, and $16,414,055 (approximately $164,141 per newly diagnosed patient and $566,002 per treated patient) for the potential future scenario. Total out-of-pocket cost for 100 patients with newly diagnosed CLL under Medicare Part D increased from $9,426 under the historical scenario (approximately $325 per treated patient) to $363,830 and $255,051 under current scenarios A and B (approximately $8,800 to $12,500 per treated patient) and to $1,031,367 (approximately $35,564 per treated patient) under the future scenario. CONCLUSION: Although ibrutinib and idelalisib are profound treatment advances, they will dramatically increase individual out-of-pocket and societal costs of caring for patients with CLL. These cost considerations may undermine the potential promise of these agents by limiting access and reducing adherence.


Asunto(s)
Antineoplásicos/economía , Antineoplásicos/uso terapéutico , Costos de los Medicamentos , Leucemia Linfocítica Crónica de Células B/tratamiento farmacológico , Leucemia Linfocítica Crónica de Células B/economía , Inhibidores de Proteínas Quinasas/economía , Inhibidores de Proteínas Quinasas/uso terapéutico , Purinas/economía , Purinas/uso terapéutico , Pirazoles/economía , Pirazoles/uso terapéutico , Pirimidinas/economía , Pirimidinas/uso terapéutico , Quinazolinonas/economía , Quinazolinonas/uso terapéutico , Adenina/análogos & derivados , Antineoplásicos/efectos adversos , Análisis Costo-Beneficio , Gastos en Salud , Humanos , Leucemia Linfocítica Crónica de Células B/diagnóstico , Medicare Part D/economía , Minnesota , Modelos Económicos , Piperidinas , Inhibidores de Proteínas Quinasas/efectos adversos , Purinas/efectos adversos , Pirazoles/efectos adversos , Pirimidinas/efectos adversos , Quinazolinonas/efectos adversos , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos
20.
J Sex Med ; 11(4): 1056-1062, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24382018

RESUMEN

INTRODUCTION: The United Kingdom is unusual in that a significant proportion of patients with erectile dysfunction (ED) have their treatment fully reimbursed by the National Health Service (NHS). This may have consequences for the choice of treatment and for compliance with treatment. AIMS: The aim of this study was to evaluate the use and cost implications of phosphodiesterase type 5 inhibitor in an NHS setting. METHODS: Basic demographics and data on ED management for patients treated from January 2000 to April 2011 were obtained from a prospectively accrued database. We reviewed drug usage and costs as well as switching between drugs. Patients were given the choice of all available therapies and were followed up annually. MAIN OUTCOME MEASURES: Switching, compliance, and costs of treating ED under the "severe distress" criteria in the NHS were reviewed for this study. RESULTS: Two thousand one hundred fifty-nine patients qualified for reimbursed therapy. Two hundred twenty-six patients were excluded from further analysis owing to missing data. Patients were followed up on an annual basis. The mean patient age was 60.2 years (min 23, max 90), and the mean follow-up was 50.8 months (min 1, max 127). Six hundred ninety-six were started on sildenafil, 990 on tadalafil, 163 on vardenafil, and 84 on intracavernosal alprostadil. Eighteen percent of patients initially started on the scheme and stopped medication unilaterally. Of the patients, 12.3% changed their medication during follow-up. The cost of drugs increased year by year from £257,100 in 2007 to £352,519 in 2011. CONCLUSIONS: Our real-life observational study shows that in our institution, dropout of therapy is unusual. We hypothesize that this reflects, in part, the reimbursement issue. We also found that switching between drugs was unusual, although there are several possible explanations for that. Although this is a successful system for the patients, the hospital, which bears the costs of medication, is finding this an increasing economic drain.


Asunto(s)
Disfunción Eréctil/tratamiento farmacológico , Inhibidores de Fosfodiesterasa 5/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Atención Ambulatoria/economía , Carbolinas/economía , Carbolinas/uso terapéutico , Costos de los Medicamentos , Disfunción Eréctil/economía , Humanos , Imidazoles/economía , Imidazoles/uso terapéutico , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Cooperación del Paciente , Inhibidores de Fosfodiesterasa 5/economía , Piperazinas/economía , Piperazinas/uso terapéutico , Purinas/economía , Purinas/uso terapéutico , Citrato de Sildenafil , Medicina Estatal/economía , Sulfonas/economía , Sulfonas/uso terapéutico , Tadalafilo , Triazinas/economía , Triazinas/uso terapéutico , Reino Unido , Diclorhidrato de Vardenafil , Adulto Joven
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