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1.
Epidemiol Prev ; 48(3): 233-238, 2024.
Artículo en Italiano | MEDLINE | ID: mdl-38995136

RESUMEN

OBJECTIVES: to assess the variability in expenditure compared to 2022 assuming different rates of shifting of therapy days from current active ingredients used for the treatment of haemophilia B to nonacog beta pegolDesign: descriptive cross-sectional study. SETTING AND PARTICIPANTS: consumption in the year 2022 (data source: Medicines Utilisation Monitoring Centre, Italian Medicines Agency) of all medicinal products available in Italy containing coagulation factor IX. MAIN OUTCOMES MEASURES: for each active ingredient, the total number of therapy days and the variability in expenditure compared to 2022 were estimated on the basis of a switch of therapy days, between 5% and 20%, to nonacog beta pegol. RESULTS: on the basis of considered scenarios, the analysis shows that the total annual expenditure for clotting factors used in the treatment of haemophilia B could remain at most unchanged or reduced. Particularly, the extent of the reduction in spending could vary from 0.11% to 2.26%. This trend would be in contrast to the stable increase seen in recent years, particularly in 2022. CONCLUSIONS: this predictive spending assessment may be useful in evaluating the economic impact from new treatment options, such as etranacogene dezaparvovec gene therapy already approved by the European Medicines Agency and the Food and Drug Administration, and to improve pharmaceutical governance.


Asunto(s)
Factor IX , Hemofilia B , Italia , Humanos , Estudios Transversales , Hemofilia B/tratamiento farmacológico , Hemofilia B/economía , Factor IX/uso terapéutico , Factor IX/economía , Costos de los Medicamentos , Proteínas Recombinantes/uso terapéutico , Proteínas Recombinantes/economía , Polietilenglicoles/uso terapéutico , Polietilenglicoles/economía , Gastos en Salud/estadística & datos numéricos
2.
Anticancer Res ; 43(5): 2293-2298, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37097646

RESUMEN

BACKGROUND/AIM: The docetaxel, 5-fluorouracil, and cisplatin (DCF) regimen is an effective form of chemotherapy for advanced esophageal cancer. However, the incidence of adverse events, such as febrile neutropenia (FN), is high. This study retrospectively examined whether pegfilgrastim treatment reduces FN development during DCF therapy. PATIENTS AND METHODS: This study evaluated 52 patients who were diagnosed with esophageal cancer and underwent DCF therapy at Jikei Daisan Hospital, Tokyo, Japan, between 2016 and 2020. They were divided into non-pegfilgrastim and pegfilgrastim-treated groups, and side-effects of chemotherapy and cost-effectiveness of pegfilgrastim were examined. RESULTS: Eighty-six cycles of DCF therapy were conducted (33 and 53 cycles, respectively). FN was observed in 20 (60.6%) and seven (13.2%) cases, respectively (p<0.001). The lowest absolute neutrophil count during chemotherapy was significantly lower in the non-pegfilgrastim group (p<0.001), and the number of days until improvement from nadir was significantly shorter in the pegfilgrastim group (9 vs. 11 days; p<0.001). No significant difference was found in the onset of grade 2 or more adverse events by Common Terminology Criteria for Adverse Events. However, renal dysfunction was significantly lower in the pegfilgrastim group (30.7% vs. 60.6%, p=0.038). Hospitalization costs were also significantly lower in this group (692,839 vs. 879,431 Japanese yen, p=0.028). CONCLUSION: This study revealed the usefulness and cost-effectiveness of pegfilgrastim in prevention of FN in patients treated with DCF.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica , Cisplatino , Docetaxel , Neoplasias Esofágicas , Neutropenia Febril , Filgrastim , Fluorouracilo , Polietilenglicoles , Análisis de Costo-Efectividad , Neutropenia Febril/inducido químicamente , Neutropenia Febril/prevención & control , Docetaxel/efectos adversos , Docetaxel/uso terapéutico , Cisplatino/efectos adversos , Cisplatino/uso terapéutico , Fluorouracilo/efectos adversos , Fluorouracilo/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Esofágicas/tratamiento farmacológico , Filgrastim/economía , Filgrastim/uso terapéutico , Polietilenglicoles/economía , Polietilenglicoles/uso terapéutico , Humanos , Masculino , Femenino , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Neutrófilos , Recuento de Leucocitos
3.
Future Oncol ; 18(3): 363-373, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34747185

RESUMEN

Aim: To estimate cost-savings from conversion to biosimilar pegfilgrastim-cbqv that could be reallocated to provide budget-neutral expanded access to AC (doxorubicin/cyclophosphamide) and TCH (docetaxel/carboplatin/trastuzumab) in breast cancer (BC) patients. Methods: Simulation modeling in panels of 20,000 BC and 5000 HER2+ (HER2+ BC) patients, varying treatment duration (one-six cycles) and conversion rates (10-100%), to estimate cost-savings and additional AC and TCH treatment that could be provided. Results: In 20,000 patients, cost-savings of $1,083 per-patient per-cycle translate to $21,652,064 (one cycle) to $129,912,397 (six cycles). Savings range from $5,413,016 to $32,478,097, respectively, in the 5000-patient HER2+ BC panel. Conclusion: Conversion to pegfilgrastim-cbqv could save up to $130 million and provide more than 220,000 additional cycles of antineoplastic treatment on a budget-neutral basis to BC patients.


Lay abstract Pegfilgrastim is used to prevent low white blood cell count in patients receiving chemotherapy. Comparable to a generic version of a drug, a biosimilar is a follow-on version of a biologic treatment. We calculated the savings from using biosimilar pegfilgrastim in a hypothetical group of 20,000 patients with breast cancer receiving chemotherapy with AC (doxorubicin/cyclophosphamide). We then computed the number of additional doses of AC chemotherapy that could be purchased with those savings. We did the same for a group of 5000 HER2+ breast cancer patients treated with TCH (docetaxel/carboplatin/trastuzumab). Using biosimilar pegfilgrastim could save $1,083 per patient per cycle. If all patients were treated with biosimilar pegfilgrastim over six cycles, $129.9 million could be saved in the AC group and $32.5 million in the TCH group. This could provide 220,468 additional AC doses and 6981 TCH doses. Biosimilar pegfilgrastim can generate significant savings. These savings can be used to provide additional patients with chemotherapy cost-free.


Asunto(s)
Biosimilares Farmacéuticos/uso terapéutico , Neoplasias de la Mama/tratamiento farmacológico , Ahorro de Costo/estadística & datos numéricos , Filgrastim/uso terapéutico , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Polietilenglicoles/uso terapéutico , Anciano , Biosimilares Farmacéuticos/economía , Neoplasias de la Mama/economía , Simulación por Computador , Costos de los Medicamentos , Sustitución de Medicamentos/economía , Sustitución de Medicamentos/estadística & datos numéricos , Femenino , Filgrastim/economía , Humanos , Medicare/economía , Medicare/estadística & datos numéricos , Persona de Mediana Edad , Modelos Económicos , Polietilenglicoles/economía , Estados Unidos
4.
Hematology ; 26(1): 950-955, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34904529

RESUMEN

OBJECTIVES: To compare the efficacies and costs between pegfilgrastim and filgrastim prophylaxis for FN post-ASCT for lymphoma and multiple myeloma patients. METHODS: 43 patients who received pegfilgrastim (6 mg) were compared to a retrospective cohort of 129 patients that had received filgrastim post-ASCT. Hematopoietic recovery time, FN incidence and treatment costs were assessed and compared. RESULTS: The mean time to absolute neutrophil count engraftment was 8.72 ± 2.38 days for the prospective pegfilgrastim group and 9.87 ± 3.13 days for the retrospective filgrastim group (P = 0.027). The incidence of FN was 18.60% and 50.39% in prospective pegfilgrastim and retrospective filgrastim groups, respectively (P = 0.000). The mean cost of filgrastim was $617.22 ± 37.87, compared with $525.78 for pegfilgrastim (P = 0.032). DISCUSSION: Convenience, effectiveness, and safety of prophylaxis for FN in the prospective pegfilgrastim group were significantly improved compared to the retrospective filgrastim group in ASCT patients. CONCLUSION: Pegfilgrastim prophylaxis was more effective and convenient than filgrastim for FN prophylaxis in patients post-ASCT, especially for MM patients.


Asunto(s)
Neutropenia Febril/prevención & control , Filgrastim/uso terapéutico , Fármacos Hematológicos/uso terapéutico , Trasplante de Células Madre Hematopoyéticas , Linfoma/terapia , Mieloma Múltiple/terapia , Polietilenglicoles/uso terapéutico , Adolescente , Adulto , Anciano , Análisis Costo-Beneficio , Neutropenia Febril/economía , Femenino , Filgrastim/efectos adversos , Filgrastim/economía , Fármacos Hematológicos/efectos adversos , Fármacos Hematológicos/economía , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Trasplante de Células Madre Hematopoyéticas/economía , Humanos , Linfoma/economía , Masculino , Persona de Mediana Edad , Mieloma Múltiple/economía , Polietilenglicoles/efectos adversos , Polietilenglicoles/economía , Estudios Prospectivos , Estudios Retrospectivos , Trasplante Autólogo/efectos adversos , Trasplante Autólogo/economía , Resultado del Tratamiento , Adulto Joven
5.
Future Oncol ; 17(33): 4561-4570, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34382416

RESUMEN

Aim: To estimate the cost-savings from conversion to biosimilar pegfilgrastim-cbqv that can be reallocated to provide budget-neutral expanded access to FOLFIRINOX in patients with metastatic pancreatic cancer. Methods: Simulation modeling in a panel of 2500 FOLFIRINOX-treated patients, using varying treatment duration (1-12 cycles) and conversion rates (10-100%), to estimate cost-savings and additional FOLFIRINOX treatment that could be budget neutral. Results: In a 2500-patient panel at 100% conversion, savings of US$6,907.41 per converted patient over 12 cycles of prophylaxis translate to US$17.3 million and could provide 72,273 additional FOLFIRINOX doses or 6023 full 6-month regimens. Conclusion: Conversion to biosimilar CIN/FN prophylaxis can generate significant cost-savings and provide budget-neutral expanded access to FOLFIRINOX treatment for patients with metastatic pancreatic cancer.


Lay abstract Pegfilgrastim is used to prevent low white blood cell count in patients receiving chemotherapy. Comparable to a generic version of a drug, a biosimilar is a follow-on version of a biologic treatment. The authors calculated the savings from using biosimilar pegfilgrastim in a hypothetical group of 2500 patients with metastatic pancreatic cancer and then computed the number of additional doses of FOLFIRINOX chemotherapy that could be purchased with those savings. Using biosimilar pegfilgrastim for 12 cycles could save US$6,907.41 per patient. If all 2500 patients were treated with biosimilar pegfilgrastim, US$17.3 million could be saved. This could provide 72,273 additional FOLFIRINOX doses. Biosimilar pegfilgrastim can generate significant savings to purchase chemotherapy for additional patients cost-free.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/economía , Biosimilares Farmacéuticos/economía , Filgrastim/economía , Neoplasias Pancreáticas/tratamiento farmacológico , Polietilenglicoles/economía , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Biosimilares Farmacéuticos/uso terapéutico , Simulación por Computador , Ahorro de Costo/estadística & datos numéricos , Análisis Costo-Beneficio , Costos de los Medicamentos , Filgrastim/uso terapéutico , Fluorouracilo/economía , Fluorouracilo/uso terapéutico , Accesibilidad a los Servicios de Salud/economía , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Humanos , Irinotecán/economía , Irinotecán/uso terapéutico , Leucovorina/economía , Leucovorina/uso terapéutico , Persona de Mediana Edad , Modelos Económicos , Oxaliplatino/economía , Oxaliplatino/uso terapéutico , Neoplasias Pancreáticas/economía , Neoplasias Pancreáticas/patología , Polietilenglicoles/uso terapéutico , Programa de VERF/estadística & datos numéricos
6.
BMC Cancer ; 21(1): 454, 2021 Apr 23.
Artículo en Inglés | MEDLINE | ID: mdl-33892670

RESUMEN

BACKGROUND: The objective of this study was to compare the efficacy and side effects of a single dose (Pegfilgrastim or PDL) or repeated six daily injections (Filgrastim or PDG) during chemotherapy courses in breast cancer patients in a non-inferiority clinical trial. METHODS: In this randomized clinical trial, 80 patients were recruited and allocated randomly to two equal arms. In one group, a single subcutaneous dose of PDL was injected the day after receiving the chemotherapy regimen in each cycle. The second arm received a subcutaneous injection of PDG for six consecutive days in each cycle of treatment. The side effects of GCF treatment and its effect on blood parameters were compared in each cycle and during eight cycles of chemotherapy. RESULTS: Hematologic parameters showed no significant differences in any of the treatment courses between the two study groups. The comparison of WBC (p = 0.527), Hgb (p = 0.075), Platelet (p = 0.819), Neutrophil (p = 0.575), Lymphocyte (p = 705) and ANC (p = 0.675) changes during the eight courses of treatment also revealed no statistically significant difference between the two study groups. Side effects including headache, injection site reaction and muscle pain had a lower frequency in patients receiving PDL drugs. CONCLUSION: It seems that PDL is non-inferior in efficacy and also less toxic than PDG. Since PDL can be administered in a single dose and is also less costly, it can be regarded as a cost-effective drug for the treatment of chemotherapy-induced neutropenia. TRIAL REGISTRATION: IRCT20190504043465N1 , May 2019.


Asunto(s)
Neoplasias de la Mama/sangre , Neutropenia Febril Inducida por Quimioterapia/tratamiento farmacológico , Filgrastim/administración & dosificación , Fármacos Hematológicos/administración & dosificación , Polietilenglicoles/administración & dosificación , Adulto , Antineoplásicos/efectos adversos , Antineoplásicos/uso terapéutico , Recuento de Células Sanguíneas , Neoplasias de la Mama/tratamiento farmacológico , Neutropenia Febril Inducida por Quimioterapia/sangre , Femenino , Filgrastim/efectos adversos , Filgrastim/economía , Fármacos Hematológicos/efectos adversos , Fármacos Hematológicos/economía , Humanos , Inyecciones Subcutáneas , Persona de Mediana Edad , Polietilenglicoles/efectos adversos , Polietilenglicoles/economía
7.
J Manag Care Spec Pharm ; 27(9): 1230-1238, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33929269

RESUMEN

BACKGROUND: Pegfilgrastim is available as a prefilled syringe (PFS) and an on-body injector (OBI). Whether the administration method of pegfilgrastim affects the effectiveness and health care resources has not been evaluated in the setting of routine care. OBJECTIVE: To compare real-world clinical and economic outcomes between PFS and OBI methods of administration. METHODS: This was a retrospective observational study in patients diagnosed with breast cancer or non-Hodgkin lymphoma who received myelosuppressive chemotherapy and prophylactic use of pegfilgrastim via PFS or OBI between January 1, 2017, and May 31, 2018, according to MarketScan research databases. A propensity score was used to match the PFS cohort 1:1 to the OBI cohort. Outcomes were compared among the matched cohorts using a generalized linear model and generalized estimating equations with log-link function. RESULTS: 3,152 patients were identified. After matching, the final sample included 2,170 patients, representing 1,085 in each cohort. The incidence of febrile neutropenia (FN) in the first chemotherapy cycle was 1.01% for OBI (95% CI = 0.56-1.82) vs 1.48% for PFS (95% CI = 0.91-2.39; P = 0.336). In all chemotherapy cycles (total cycles = 7,467), the FN incidence was 0.91% for OBI (95% CI = 0.64-1.30) vs 1.22% for PFS (95% CI = 0.90-1.64; P = 0.214). There was no statistically significant difference in adjusted per-member per-month all-cause total cost health care resource utilization (HCRU) for hospitalizations, emergency department visits, and pharmacy claims. CONCLUSIONS: In a matched cohort of patients representing real-world utilization, there was no statistically or clinically meaningful difference in FN incidence between OBI and PFS methods of pegfilgrastim administration. There was no difference in total HCRU or total costs. OBI and PFS methods of administration are both indicated for patients requiring prophylactic pegfilgrastim, which is important considering that biosimilar PFS options are now available. DISCLOSURES: This study was funded by Sandoz, Inc. Wang, Li, and K. Campbell are employees of Sandoz, Inc. Schroader and D. Campbell are employees of Xcenda, which was contracted by Sandoz, Inc., to provide study and manuscript development. McBride reports receiving payment from Sandoz, Inc., as a consultant, unrelated to this study; Coherus for advisory board and speaker engagements; and Pfizer for advisory board participation during the time of this study.


Asunto(s)
Filgrastim/administración & dosificación , Filgrastim/economía , Inyecciones/instrumentación , Evaluación de Resultado en la Atención de Salud , Polietilenglicoles/administración & dosificación , Polietilenglicoles/economía , Jeringas , Adulto , Anciano , Anciano de 80 o más Años , Análisis de Datos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
8.
J Med Econ ; 23(8): 831-837, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32400258

RESUMEN

Background and aims: The economic consequences of multiple sclerosis (MS) are broader than those observed within the health system. The progressive nature suggests that people will not be able to live a normal productive life and will gradually require public benefits to maintain living standards. This study investigates the public economic impact of MS and how investments in disease-modifying therapies (DMTs) influence the lifetime costs to government attributed to changes in lifetime tax revenue and disability benefits based on improved health status linked to delayed disease progression.Methods: Disease progression rates from previous MS Markov cohort models were applied to interferon beta-1a, peginterferon beta-1a, dimethyl fumarate, and natalizumab using a public economic framework. The established relationship between expanded disability status scale and work-force participation, annual earnings, and disability rates for each DMT were applied. Subsequently, we assessed the effect of DMTs on discounted governmental costs consisting of health service costs, social insurance and disability costs, and changes in lifetime tax revenues.Results: Fiscal benefits attributed to informal care and community services savings for interferon beta-1a, peginterferon beta-1a, dimethyl fumarate, and natalizumab were SEK340,387, SEK486,837, SEK257,330, and SEK958,852 compared to placebo, respectively. Tax revenue gains linked to changes in lifetime productivity for interferon beta-1a, peginterferon beta-1a, dimethyl fumarate, and natalizumab were estimated to be SEK27,474, SEK39,659, SEK21,661, and SEK75,809, with combined fiscal benefits of cost savings and tax revenue increases of SEK410,039, SEK596,592, SEK326,939, and SEK1,208,023, respectively.Conclusion: The analysis described here illustrates the broader public economic benefits for government attributed to changes in disease status. The lifetime social insurance transfer costs were highest in non-treated patients, and lower social insurance costs were demonstrated with DMTs. These findings suggest that focusing cost-effectiveness analysis only on health costs will likely underestimate the value of DMTs.


Asunto(s)
Economía Médica/estadística & datos numéricos , Inmunosupresores/economía , Inmunosupresores/uso terapéutico , Esclerosis Múltiple/tratamiento farmacológico , Esclerosis Múltiple/economía , Cuidadores/economía , Costo de Enfermedad , Análisis Costo-Beneficio , Dimetilfumarato/economía , Dimetilfumarato/uso terapéutico , Progresión de la Enfermedad , Eficiencia , Gobierno , Estado de Salud , Humanos , Interferón beta-1a/economía , Interferón beta-1a/uso terapéutico , Interferón beta/economía , Interferón beta/uso terapéutico , Cadenas de Markov , Modelos Económicos , Natalizumab/economía , Natalizumab/uso terapéutico , Polietilenglicoles/economía , Polietilenglicoles/uso terapéutico , Salud Pública/economía , Ausencia por Enfermedad/economía , Servicio Social/economía , Suecia , Impuestos/economía
9.
Ann Hematol ; 99(6): 1331-1339, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32382775

RESUMEN

Autologous stem cell transplantation (ASCT) is the only curable therapy for multiple myeloma (MM), while its success primarily relies on mobilization to obtain sufficient hematopoietic stem/progenitor cells (HPC). Although the role of Pegfilgrastim (PEG), a novel PEGylated form of the recombinant G-CSF filgrastim (FIL), in mobilization has been demonstrated, it remains unclear whether this approach is cost-effective in MM treatment. Here, we performed a real-world analysis to evaluate the efficacy and cost of PEG for mobilization in a cohort of MM patients, of which 53% carried high-risk cytogenetic abnormalities. A total of 91 patients who received either a single dose of PEG (6 or 12 mg, n = 42) or multiple dosing of 10 µg/kg/day FIL (n = 49) after chemotherapy for HPC mobilization were included. The yield of MNCs and CD34+ cells per milliliter of blood collected via apheresis was significantly greater in the PEG group than that in the FIL group (P = 0.014 and P = 0.038). Mobilization with PEG yielded significantly higher median number of collected CD34+ cells than FIL (5.56 vs. 4.82 × 106/kg; P = 0.038). Moreover, the average time-to-recovery of leukocytes and platelets after transplantation was markedly shorter in the PEG group than that in the FIL group (leukocyte, 11.59 ± 1.98 vs 12.93 ± 2.83 days, P = 0.019; platelet, 12.86 ± 2.62 vs 14.80 ± 5.47, P = 0.085). However, the total cost of mobilization and apheresis using PEG or FIL was comparable (P = 0.486). Of note, mobilization with 12 mg PEG further shortened time-to-recovery of leukocytes (10.64 ± 0.51 vs. 12.04 ± 2.26 days, P = 0.05) and platelets (10.60 ± 2.89 vs. 13.33 ± 2.35 days, P = 0.031) compared with 6 mg PEG. Our results support a notion that PEG (especially 12 mg) combined with chemotherapy is a cost-effective and convenient regimen of mobilization, which might improve the outcome of ASCT in MM.


Asunto(s)
Filgrastim/uso terapéutico , Movilización de Célula Madre Hematopoyética/métodos , Trasplante de Células Madre Hematopoyéticas/métodos , Mieloma Múltiple/sangre , Mieloma Múltiple/terapia , Polietilenglicoles/uso terapéutico , Adulto , Anciano , Estudios de Cohortes , Análisis Costo-Beneficio , Femenino , Filgrastim/economía , Movilización de Célula Madre Hematopoyética/economía , Movilización de Célula Madre Hematopoyética/tendencias , Trasplante de Células Madre Hematopoyéticas/economía , Trasplante de Células Madre Hematopoyéticas/tendencias , Humanos , Masculino , Persona de Mediana Edad , Mieloma Múltiple/economía , Polietilenglicoles/economía , Trasplante Autólogo/economía , Trasplante Autólogo/métodos , Trasplante Autólogo/tendencias , Resultado del Tratamiento
10.
Pediatr Infect Dis J ; 39(6): e59-e65, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32345829

RESUMEN

BACKGROUND: Novel oral regimes have been approved for treating hepatitis C virus (HCV) infection in adolescents due to their superior effectiveness and safety. However, its economic outcome is still unclear in this population. The current analysis investigates the cost-effectiveness of novel oral regimens compared with that of pegylated interferon α with ribavirin (PR) therapies in adolescents in the context of the United States and China. METHODS: A Markov model was developed to measure the economic and health outcomes of ledipasvir/sofosbuvir (LS) for genotypes 1 and 4, sofosbuvir/ribavirin (SR) for genotype 2, and ledipasvir/sofosbuvir/ribavirin (LSR) for genotype 3 HCV infection compared with the outcomes of PR treatment. Clinical costs and utility inputs were gathered from published sources. Lifetime discounted quality-adjusted life years (QALYs), costs, and incremental cost-effectiveness ratios (ICERs) were measured. The uncertainty was facilitated by 1-way and probabilistic sensitivity analyses. RESULTS: In the United States, the ICERs of LS strategy were $14,699 and $14,946/QALY for genotypes 1 and 4 HCV infection, respectively; the ICER of SR strategy for genotype 2 was $42,472/QALY; and the ICER of LSR for genotype 3 was $49,409/QALY in comparison with the PR strategy. In Chinese adolescents, LS for genotypes 1 and 4, SR for genotype 2, and LSR for genotype 3 were the dominant alternatives to the PR strategy. The results were robust to sensitivity analyses. CONCLUSIONS: Novel oral regimes for adolescents with HCV infection are likely to be cost-effective in the context of the United States and China.


Asunto(s)
Antivirales/economía , Antivirales/uso terapéutico , Análisis Costo-Beneficio , Quimioterapia Combinada/economía , Hepatitis C Crónica/tratamiento farmacológico , Administración Oral , Adolescente , Bencimidazoles/economía , Bencimidazoles/uso terapéutico , Niño , China , Fluorenos/economía , Fluorenos/uso terapéutico , Genotipo , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Humanos , Interferón-alfa/economía , Interferón-alfa/uso terapéutico , Cadenas de Markov , Polietilenglicoles/economía , Polietilenglicoles/uso terapéutico , Proteínas Recombinantes/economía , Proteínas Recombinantes/uso terapéutico , Ribavirina/economía , Ribavirina/uso terapéutico , Sofosbuvir/economía , Sofosbuvir/uso terapéutico , Estados Unidos
11.
J Med Econ ; 23(8): 856-863, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32323582

RESUMEN

Aims: For this economic analysis, we aimed to model: (1) the cost-efficiency of prophylaxis with biosimilar pegfilgrastim-bmez for chemotherapy-induced (febrile) neutropenia (CIN/FN) compared to reference pegfilgrastim, and (2) the expanded access to CIN/FN prophylaxis and anti-neoplastic treatment that could be achieved with biosimilar cost-savings on a budget-neutral basis.Methods: In a hypothetical panel of 20,000 cancer patients receiving CIN/FN prophylaxis and using the average sales price (ASP) for the second quarter of 2019 for reference pegfilgrastim, we: conducted an ex ante simulation from the payer perspective of the cost-savings of 10-100% conversion from reference to biosimilar pegfilgrastim-bmez using drug price discounting ranging from 10-35%; estimated the budget-neutral expanded access to biosimilar pegfilgrastim-bmez enabled by these cost-savings; and estimated the budget-neutral expanded access to anti-neoplastic treatment with pembrolizumab. The simulations were replicated using fourth quarter 2019 wholesale acquisition cost (WAC) for reference pegfilgrastim and biosimilar pegfilgrastim-bmez in a post facto analysis.Results: In ASP simulations, cost-savings of using pegfilgrastim-bmez over reference pegfilgrastim in a 20,000 patient panel range from $1.3 M (at 15% price discount) to $3 M (35%) at 10% conversion rate and from $6.4 M to $14.9 M, respectively, at 50% conversion. These savings could provide prophylaxis with pegfilgrastim-bmez to an additional 352 (15% discount) to 1,076 patients (35%) at 10% conversion or 1,764-5,384, respectively, at 50% conversion. Alternatively, savings could be reallocated for anti-neoplastic treatment with pembrolizumab to 3 (15% discount) to 9 (35%) patients at 10% conversion or 19-45, respectively, at 50% conversion. When utilizing WAC, cost-savings range from $4.6 M (10% conversion) to $23.1 M (50%) which could provide pegfilgrastim-bmez to an additional 1,174 (10% conversion) to 5,873 patients (50%).Conclusions: Prophylaxis with biosimilar pegfilgrastim-bmez increases the value of cancer care by generating significant cost-savings that could be reallocated to provide expanded access to CIN/FN prevention and anti-neoplastic therapy on a budget-neutral basis.


Asunto(s)
Biosimilares Farmacéuticos/economía , Neutropenia Febril Inducida por Quimioterapia/prevención & control , Filgrastim/economía , Fármacos Hematológicos/economía , Polietilenglicoles/economía , Biosimilares Farmacéuticos/administración & dosificación , Análisis Costo-Beneficio , Filgrastim/administración & dosificación , Fármacos Hematológicos/administración & dosificación , Humanos , Modelos Económicos , Neoplasias/tratamiento farmacológico , Polietilenglicoles/administración & dosificación , Estados Unidos
12.
Arthritis Rheumatol ; 72(7): 1067-1071, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32253823

RESUMEN

OBJECTIVE: To compare uptake in the ordering of biosimilars at a Veterans Affairs Medical Center (VAMC) to that at an academic medical center, where institutional incentives for infused medications differ. METHODS: We performed a cross-sectional study of medical record data and estimated institutional financial incentives at 2 medical centers in Philadelphia: 1) the University of Pennsylvania Health System (UPHS), and 2) the local VAMC. All ordering events for filgrastim or infliximab products were quantified over time and stratified according to product (biosimilar versus reference product) and center. Financial incentives to the institutions over time were determined based on actual drug costs for the VAMC and average sales prices (ASPs) and Medicare Part B reimbursement rates for UPHS. RESULTS: There were 15,761 infusions of infliximab at UPHS, of which 99% were for the reference product. There was a sharper decline in the use of reference products at the VAMC; 62% of the 446 infliximab infusions ordered at the VAMC were for the reference product. ASPs were consistently lower for biosimilar infliximab products, but the estimated institutional financial incentives remained similar over time for biosimilar and reference infliximab at UPHS. At the VAMC, the costs for 100-mg vials of reference infliximab and infliximab-abda were $623.48 and $115.58, respectively: a $507.90 (81%) savings per vial. CONCLUSION: The uptake of infliximab biosimilars has been slow at an academic medical center compared to a nearby VAMC, where financial savings are realized by the institution from its use. Slow adoption of biosimilar medications may impact the rates of decline in costs.


Asunto(s)
Centros Médicos Académicos , Antirreumáticos/uso terapéutico , Biosimilares Farmacéuticos/uso terapéutico , Filgrastim/uso terapéutico , Fármacos Hematológicos/uso terapéutico , Infliximab/uso terapéutico , United States Department of Veterans Affairs , Antirreumáticos/economía , Biosimilares Farmacéuticos/economía , Ahorro de Costo , Costos de los Medicamentos , Filgrastim/economía , Gastroenterología , Fármacos Hematológicos/economía , Humanos , Infliximab/economía , Infusiones Intravenosas , Medicare Part B , Motivación , Philadelphia , Polietilenglicoles/economía , Polietilenglicoles/uso terapéutico , Mecanismo de Reembolso , Reumatología , Estados Unidos
13.
Wound Repair Regen ; 28(3): 375-384, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32022363

RESUMEN

The clinical effectiveness and scar quality of the randomized controlled trial comparing enzyme alginogel with silver sulfadiazine (SSD) for treatment of partial thickness burns were previously reported. Enzyme alginogel did not lead to faster wound healing (primary outcome) or less scar formation. In the current study, the health-related quality of life (HRQoL), costs, and cost-effectiveness of enzyme alginogel compared with SSD in the treatment of partial thickness burns were studied. HRQoL was evaluated using the Burn Specific Health Scale-Brief (BSHS-B) and the EQ-5D-5L questionnaire 1 week before discharge and at 3, 6, and 12 months postburn. Costs were studied from a societal perspective (health care and nonhealth-care costs) for a follow-up period of 1 year. A cost-effectiveness analysis was performed using cost-effectiveness acceptability curves and comparing differences in societal costs and Quality Adjusted Life Years (QALYs) at 1 year postburn. Forty-one patients were analyzed in the enzyme alginogel group and 48 patients in the SSD group. None of the domains of BSHS-B showed a statistically significant difference between the treatment groups. Also, no statistically significant difference in QALYs was found between enzyme alginogel and SSD (difference -0.03; 95% confidence interval [CI], -0.09 to 0.03; P = .30). From both the health care and the societal perspective, the difference in costs between enzyme alginogel and SSD was not statistically significant: the difference in health-care costs was €3210 (95% CI, €-1247 to €7667; P = .47) and in societal costs was €3377 (95% CI €-6229 to €12 982; P = .49). The nonsignificant differences in costs and quality-adjusted life-years in favor of SSD resulted in a low probability (<25%) that enzyme alginogel is cost-effective compared to SSD. In conclusion, there were no significant differences in quality of life between both treatment groups. Enzyme alginogel is unlikely to be cost-effective compared with SSD in the treatment of partial thickness burns.


Asunto(s)
Alginatos/uso terapéutico , Antiinfecciosos Locales/uso terapéutico , Quemaduras/economía , Quemaduras/terapia , Glucosa Oxidasa/uso terapéutico , Lactoperoxidasa/uso terapéutico , Polietilenglicoles/uso terapéutico , Calidad de Vida , Sulfadiazina de Plata/uso terapéutico , Adulto , Anciano , Alginatos/economía , Antiinfecciosos Locales/economía , Quemaduras/patología , Análisis Costo-Beneficio , Combinación de Medicamentos , Femenino , Glucosa Oxidasa/economía , Humanos , Lactoperoxidasa/economía , Masculino , Persona de Mediana Edad , Polietilenglicoles/economía , Sulfadiazina de Plata/economía , Factores de Tiempo , Resultado del Tratamiento , Cicatrización de Heridas
14.
J Med Econ ; 23(1): 28-36, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31433700

RESUMEN

Background: Guidelines recommend febrile neutropenia (FN) prophylaxis following myelotoxic chemotherapy with either daily injections of filgrastim (Neupogen®) or biosimilar filgrastim-sndz (Zarzio/Zarxio®), single-injection pegfilgrastim (Neulasta®), or pegfilgrastim administered through an on-body injector (PEG-OBI; Neulasta® Onpro®). PEG-OBI failure rates up to 6.9% have been reported, putting patients at incremental risk for FN and FN-related hospitalization. Our objective was to estimate, from a US payer perspective, the incremental costs of FN hospitalizations and the total incremental costs associated with PEG-OBI prophylaxis at varying device failure rates over assured FN prophylaxis with daily injections of filgrastim or filgrastim-sndz or a single injection of pegfilgrastim.Methods: Cost simulations comparing prophylaxis with PEG-OBI at failure rates of 1-10% versus assured prophylaxis in cycle 1 of chemotherapy were performed for panels of 10,000 patients with lung cancer treated with cyclophosphamide, doxorubicin, and etoposide (1 analysis) or non-Hodgkin lymphoma (NHL) treated with CHOP or CNOP (2 analyses). Daily injection scenarios were 4.3, 5, and 11 injections for lung cancer and 5, 6.5, and 11 for NHL. The analyses are from the US payer perspective.Results: For lung cancer, the total incremental cost of PEG-OBI prophylaxis at varying failure rates and durations ranged from $6,691,969‒$31,765,299 over filgrastim and $18,901,969‒$36,538,299 over filgrastim-sndz. For NHL, in scenario 1, the total incremental costs ranged from $6,794,984‒$30,361,345 over filgrastim and $19,004,984‒$35,911,345 over filgrastim-sndz; in scenario 2, the incremental costs ranged from $7,003,657‒$32,448,067 over filgrastim and $19,213,657‒$37,998,067 over filgrastim-sndz.Conclusions: In this simulation, the incremental costs of FN-related hospitalization due to PEG-OBI failure in cycle 1 compared to assured prophylaxis with reference pegfilgrastim, reference filgrastim, and biosimilar filgrastim-sndz varied depending upon the PEG-OBI failure rate and the alternative G-CSF prophylaxis option. Biosimilar filgrastim-sndz offers the greatest cost-efficiency.


Asunto(s)
Biosimilares Farmacéuticos/administración & dosificación , Biosimilares Farmacéuticos/economía , Neutropenia Febril/prevención & control , Filgrastim/administración & dosificación , Filgrastim/economía , Hospitalización/economía , Polietilenglicoles/administración & dosificación , Polietilenglicoles/economía , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Simulación por Computador , Falla de Equipo , Neutropenia Febril/inducido químicamente , Humanos , Inyecciones , Neoplasias Pulmonares/tratamiento farmacológico , Linfoma no Hodgkin/tratamiento farmacológico , Honorarios por Prescripción de Medicamentos , Factores de Riesgo
15.
Expert Rev Pharmacoecon Outcomes Res ; 19(6): 701-709, 2019 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-30938201

RESUMEN

Background: Colonoscopies are carried out for a range of reasons including for the detection of colon cancer and investigation of abdominal and bowel related symptoms. Inadequate preparation can increase the burden of repeat procedures.Methods: A systematic review aimed to identify the rate of repeat colonoscopies due to inadequate bowel preparation in France, Germany, Italy, Spain and the United Kingdom. The information obtained populated a decision analytic model to estimate the cost implications of inadequate bowel cleansing in the same five countries. The model explored scenarios by comparing one and two-litre polyethylene glycol-based bowel preparation.Results: The systematic review identified 14 eligible studies reporting on the proportion of patients with inadequate bowel cleansing indicated for a repeat procedure. Data were available for Italy (27.5%-35.9%), Spain (63%) and the UK (24.5%) only. The decision analytic model demonstrates that improving the proportion of adequate bowel cleansing at first colonoscopy is likely to generate cost savings.Conclusions: Based on the available evidence, increasing the proportion of people who have adequate bowel cleansing at index colonoscopy will likely have financial benefits in Italy, Spain and the UK. A paucity of data, for France and Germany, limits the robustness of conclusions in these countries.


Asunto(s)
Neoplasias del Colon/diagnóstico , Colonoscopía/métodos , Polietilenglicoles/administración & dosificación , Neoplasias del Colon/economía , Colonoscopía/economía , Costos y Análisis de Costo , Europa (Continente) , Humanos , Polietilenglicoles/economía
16.
J Med Econ ; 22(8): 736-741, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30915883

RESUMEN

Objectives: There is a lack of data in Panama on the potential differences in total healthcare professional (HCP) time between routine administrations of short-acting erythropoietin simulating agents (ESAs) (i.e. epoetin alfa) and continuous erythropoietin receptor activator (CERA) (i.e. methoxy polyethylene glycol-epoetin beta). This study aimed to quantify the HCP time associated with a single administration of epoetin alfa and CERA for the treatment of anemic patients with chronic kidney disease (CKD) on hemodialysis. Methods: This was a multi-center, cross-sectional study, using a time-and-motion methodology. Costs related to HCP time and consumables usage associated with administration of epoetin alfa and CERA were estimated. Results: Based on 60 administrations of either CERA or epoetin alfa, the estimated savings in mean total active HCP time were 2.34 (95% confidence interval = 1.87-2.81) min (-30%) per administration. When extrapolating to a full year's treatment with intravenous ESA, it would require a total of 20.3 (95% CI = 19.90-20.71) h of HCP time for epoetin alfa vs 1.1 (95% CI = 1.01-1.19) h for CERA per patient per year. Estimated savings in active HCP time per patient per year were 19.20 (95% CI = 19.20-19.21) h (-95%). This, in turn, translates into staff cost efficiency that favors Mircera with an estimated annual saving of $78.24 (95% CI = 78.24-78.28) (-95%) per patient. Conclusions: Data from a real-world setting showed that the adoption of CERA could potentially lead to a reduction in active HCP time. Highlights Few comparative data have explored the costs and potential savings of using long-acting erythropoietin-stimulating agents (ESA) instead of short-acting ESAs to treat anemia in CKD patients on hemodialysis. This time-and-motion study shows that use of CERA reduces total healthcare professional time and could represent a save for an institution in a real-world setting in Panama.


Asunto(s)
Epoetina alfa/economía , Eritropoyetina/economía , Personal de Salud/economía , Hematínicos/economía , Polietilenglicoles/economía , Anemia/tratamiento farmacológico , Anemia/etiología , Estudios Transversales , Costos de los Medicamentos , Epoetina alfa/administración & dosificación , Eritropoyetina/administración & dosificación , Femenino , Personal de Salud/estadística & datos numéricos , Hematínicos/administración & dosificación , Humanos , Masculino , Panamá , Polietilenglicoles/administración & dosificación , Diálisis Renal/efectos adversos , Insuficiencia Renal Crónica/terapia , Factores de Tiempo
17.
Clin Gastroenterol Hepatol ; 17(13): 2806-2807, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-30880272

RESUMEN

High-quality bowel preparation (prep) before colonoscopy is essential for the success of the procedure.1 Bowel preps should be safe, tolerable, efficacious, and allow for visualization of polyps 5 mm or larger.2 Full-volume (4 L) polyethylene glycol-3350 with electrolyte solution (PEG-ELS) has been considered a standard bowel prep regimen, with good safety and efficacy profiles, and is available as a generic.2.


Asunto(s)
Catárticos/economía , Costos de los Medicamentos/tendencias , Medicare Part D/economía , Citratos/economía , Colonoscopía , Medicamentos Genéricos/economía , Electrólitos/economía , Humanos , Compuestos Organometálicos/economía , Fosfatos/economía , Picolinas/economía , Polietilenglicoles/economía , Sulfatos/economía , Estados Unidos
18.
Gynecol Oncol ; 153(2): 381-384, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30808517

RESUMEN

OBJECTIVE: To determine the cost-effectiveness of pembrolizumab in patients with recurrent endometrial cancer that have failed first-line chemotherapy. METHODS: We created a model to evaluate the cost-effectiveness of pembrolizumab compared to pegylated liposomal doxorubicin (PLD) or bevacizumab for the treatment of women with recurrent endometrial cancer who have failed carboplatin and paclitaxel. Microsatellite instability-high (MSI-H) and non-microsatellite instability-high (non-MSI-H) tumors were evaluated. We included 4400 patients in the model; 800 patients were assumed to have MSI-H tumors. Drug costs were calculated using 2016-2017 wholesale acquisition costs, and cost of Grade III-IV toxicities was estimated from clinical experience. Effectiveness was calculated as 2-year overall survival (OS). We calculated incremental cost-effectiveness ratios (ICERs) to determine the cost per 2-year survivor. Univariate sensitivity analyses were performed. The willingness to pay threshold was $100,000 per year of OS. RESULTS: The cost of therapy with PLD and bevacizumab were $33.2 million (M) and $167.9 M, respectively. The cost of pembrolizumab therapy was $318.3 M for non-MSI-H patients compared to $57.9 M for MSI-H patients. For non-MSI-H patients, bevacizumab was cost-effective relative to PLD with an ICER of $153,028, while pembrolizumab was not cost-effective relative to bevacizumab with an ICER of $341,830. For MSI-H patients, pembrolizumab was cost-effective compared to PLD with an ICER of $147,249, while bevacizumab was subjected to extended dominance. Sensitivity analysis revealed that for non-MSI-H patients, one cycle of pembrolizumab would need to cost $7253 or less to be cost-effective. CONCLUSIONS: For patients with MSI-H recurrent endometrial cancers who have failed first-line chemotherapy, pembrolizumab is cost-effective relative to other single agent drugs. To be cost-effective in non-MSI-H patients, the cost of pembrolizumab should decrease substantially.


Asunto(s)
Anticuerpos Monoclonales Humanizados/economía , Anticuerpos Monoclonales Humanizados/uso terapéutico , Neoplasias Endometriales/tratamiento farmacológico , Neoplasias Endometriales/economía , Recurrencia Local de Neoplasia/tratamiento farmacológico , Antineoplásicos Inmunológicos/economía , Antineoplásicos Inmunológicos/uso terapéutico , Bevacizumab/economía , Bevacizumab/uso terapéutico , Estudios de Cohortes , Análisis Costo-Beneficio , Doxorrubicina/análogos & derivados , Doxorrubicina/economía , Doxorrubicina/uso terapéutico , Neoplasias Endometriales/genética , Neoplasias Endometriales/mortalidad , Femenino , Humanos , Inestabilidad de Microsatélites , Recurrencia Local de Neoplasia/economía , Recurrencia Local de Neoplasia/genética , Polietilenglicoles/economía , Polietilenglicoles/uso terapéutico , Estados Unidos/epidemiología
19.
Biol Blood Marrow Transplant ; 25(2): 233-238, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30219699

RESUMEN

Filgrastim (FIL) is the most common growth factor combined with plerixafor for autologous hematopoietic progenitor cell mobilization, but requires daily, multi-injection administration. We adopted a standardized mobilization regimen with pegfilgrastim (PEG) and upfront plerixafor, allowing for a single injection given the long half-life and slow elimination of PEG. Between 2015 and 2017, a total of 235 patients with lymphoma or plasma cell dyscrasias underwent mobilization with PEG 6 mg on day 1 and upfront plerixafor 24 mg on day 3, followed by apheresis on day 4 regardless of peripheral blood CD34+ cells. The median CD34+ cells/mm3 in peripheral blood on first day of collection was 48 and median collection yield was 7.27 × 106 CD34+ cells/kg (range, 0.32 to 39.6 × 106 CD34+ cells/kg) after a mean of 1.6 apheresis collections. Overall, 83% of patients achieved the mobilization target, and 95% reached the minimum necessary CD34+ cell yield to proceed with transplantation (2 × 106 CD34+ cells/kg). Because FIL is weight-based and dosed daily, the cost comparison with PEG is influenced by patient weight and number of apheresis sessions required. A cost simulation using actual patient data indicates that PEG is associated with lower cost than FIL for the majority of patients. Autologous hematopoietic progenitor cell mobilization with PEG and plerixafor is practical, effective, and not associated with increased cost compared with FIL mobilization.


Asunto(s)
Costos y Análisis de Costo , Filgrastim , Movilización de Célula Madre Hematopoyética/economía , Linfoma , Trasplante de Células Madre de Sangre Periférica/economía , Polietilenglicoles , Adulto , Anciano , Femenino , Filgrastim/administración & dosificación , Filgrastim/economía , Humanos , Linfoma/economía , Linfoma/patología , Linfoma/terapia , Masculino , Persona de Mediana Edad , Polietilenglicoles/administración & dosificación , Polietilenglicoles/economía , Trasplante Autólogo
20.
J Gastroenterol Hepatol ; 34(4): 776-783, 2019 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30462841

RESUMEN

BACKGROUND AND AIM: For genotype 2 chronic hepatitis C (CHC), the efficacy and safety of sofosbuvir plus ribavirin therapy (SOF + RBV) was better than pegylated interferon plus ribavirin therapy (PR) at a greater drug cost. This study investigated the cost-effectiveness of SOF + RBV compared with PR for treatment-naïve genotype 2 CHC in South Korea. METHODS: Using a decision analytic Markov model, a cost-effectiveness analysis comparing SOF + RBV with PR or no treatment for treatment-naïve genotype 2 CHC was performed with probabilistic and deterministic sensitivity analyses from the payer's perspective in 2017. Three cohorts of patients aged 40-49, 50-59, and 60-69 years were simulated to progress through the fibrosis stages F0-F4 to end-stage liver disease, hepatocellular carcinoma, or death. Published and calculated data on the clinical efficacy of the regimen, health-related quality of life, costs, and transition probabilities were used. RESULTS: While the incremental cost-effectiveness ratio for PR was dominant over no treatment, the incremental cost-effectiveness ratios for SOF + RBV were $20 058 for the patients in their 40s, $19 662 for those in their 50s, and $22 278 for those in their 60s compared with PR. Probabilistic sensitivity analysis indicated an 89.0% probability for the SOF + RBV to be cost-effective at a willingness to pay of $29 754.4 (per-capita gross domestic product in 2017) for the patients in their 40s and 94.1% and 89.1% for the patients in their 50s and 60s, respectively. CONCLUSIONS: The SOF + RBV is a cost-effective option for genotype 2 treatment-naïve CHC patients, especially for the patients with liver cirrhosis in Korea.


Asunto(s)
Antivirales/administración & dosificación , Antivirales/economía , Genotipo , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/virología , Ribavirina/administración & dosificación , Ribavirina/economía , Sofosbuvir/administración & dosificación , Sofosbuvir/economía , Anciano , Análisis Costo-Beneficio , Quimioterapia Combinada , Femenino , Hepatitis C Crónica/economía , Humanos , Interferón-alfa/administración & dosificación , Interferón-alfa/economía , Masculino , Persona de Mediana Edad , Polietilenglicoles/administración & dosificación , Polietilenglicoles/economía , Proteínas Recombinantes/administración & dosificación , Proteínas Recombinantes/economía , República de Corea , Resultado del Tratamiento
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