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1.
Clin Lymphoma Myeloma Leuk ; 24(5): e181-e190, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38433043

RESUMO

BACKGROUND: Little recent real-world evidence exists on overall survival, healthcare resource utilization (HCRU), and costs among R/R DLBCL patients treated with the combination of rituximab, gemcitabine, and oxaliplatin (R-GemOx), a widely-used regimen for patients ineligible for stem cell transplant due to age or comorbidities. PATIENTS AND METHODS: This retrospective analysis used 2014 to 2019 U.S. Medicare claims. Individuals aged ≥66 years with a new DLBCL diagnosis between October 1, 2015 and December 31, 2018 and continuous fee-for-service Medicare Part A, B, and D coverage in the 12 months pre- and postindex were followed to identify the sample of patients with evidence of R-GemOx treatment in the second-line (2L) or third-line (3L) setting. Outcomes included overall survival, all-cause and DLBCL-related HCRU, and costs after R-GemOx initiation. RESULTS: The final sample included 157 patients who received treatment with R-GemOx in the R/R settings (mean (SD) age 77.5 (6.0) years, 39.5% age>80 years; 66.9% male; 91.1% White). Of these, 126 received R-GemOx in the 2L setting and 31 received R-GemOx in the 3L setting. Median overall survival from R-GemOx initiation was 6.9 months and 6.8 months in the 2L and 3L setting, respectively. Rates of all-cause hospitalization (68.1% [2L] and >90% [3L]) and hospice use (42.9% [2L] and 51.7% [3L]) were high in the 12 months after R-GemOx initiation. All-cause total costs were substantial ($144,653 [2L] and $142,812 [3L]) and approximately 80% of costs were DLBCL-related within 12 months of R-GemOx initiation. CONCLUSION: Elderly U.S. Medicare beneficiaries diagnosed with DLBCL who initiated R-GemOx treatment in the R/R setting have poor overall survival, high rates of HCRU, and substantial costs.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica , Linfoma Difuso de Grandes Células B , Humanos , Linfoma Difuso de Grandes Células B/tratamento farmacológico , Linfoma Difuso de Grandes Células B/mortalidade , Linfoma Difuso de Grandes Células B/economia , Idoso , Masculino , Feminino , Idoso de 80 Anos ou mais , Estudos Retrospectivos , Estados Unidos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Gencitabina , Custos de Cuidados de Saúde/estatística & dados numéricos , Oxaliplatina/uso terapêutico , Oxaliplatina/economia , Rituximab/uso terapêutico , Rituximab/economia , Medicare
2.
JAMA Netw Open ; 4(11): e2133388, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34779846

RESUMO

Importance: Gemcitabine-nab-paclitaxel (GEMNAB) and fluorouracil, leucovorin, irinotecan, and oxaliplatin (FOLFIRINOX) both improve survival of patients with advanced pancreatic cancer when compared with single-agent gemcitabine in clinical trials. Objective: To describe changes in the survival of patients with advanced pancreatic cancer associated with sequential drug-funding approvals and to determine if there exist distinct patient populations for whom GEMNAB and FOLFIRINOX are associated with survival benefit. Design, Setting, and Participants: This population-based, retrospective cohort study examined all incident cases of advanced pancreatic cancer treated with first-line chemotherapy in Ontario, Canada (2008-2018) that were identified from the Cancer Care Ontario (Ontario Health) New Drug Funding Program database. Statistical analysis was performed from October 2020 to January 2021. Exposures: First-line chemotherapy for advanced pancreatic cancer. Main Outcomes and Measures: The main outcomes were the proportion of patients treated with each chemotherapy regimen over time and overall survival for each regimen. Cox proportional hazards regression models were used to compare overall survival between treatment regimens after adjustment for confounding variables, inverse probability of treatment weighting, and matching. Results: From 2008 to 2018, 5465 patients with advanced pancreatic cancer were treated with first-line chemotherapy in Ontario, Canada. The median (range) age of patients was 66.9 (27.8-93.4) years; 2447 (45%) were female; 878 (16%) had prior pancreatic resection, and 328 (6%) had prior adjuvant gemcitabine. During the time period when only gemcitabine and FOLFIRINOX were funded (2011-2015), 49% (929 of 1887) received FOLFIRINOX. When GEMNAB was subsequently funded (2015-2018), 9% (206 of 2347) received gemcitabine, 44% (1034 of 2347) received FOLFIRINOX, and 47% (1107 of 2347) received GEMNAB. The median overall survival increased from 5.6 months (95% CI, 5.1-6.0 months) in 2008 to 2011 to 6.9 months (95% CI, 6.5-7.4 months) in 2011 to 2015 to 7.6 months (95% CI, 7.1-8.0 months) in 2015 to 2018. Patients receiving FOLFIRINOX were younger and healthier than patients receiving GEMNAB. After adjustment and weighting, FOLFIRINOX was associated with better overall survival than GEMNAB (hazard ratio [HR], 0.75 [95% CI, 0.69-0.81]). In analyses comparing patients treated with GEMNAB and gemcitabine, GEMNAB was associated with better overall survival (HR, 0.86 [95% CI, 0.78-0.94]). Conclusions and Relevance: This cohort study of patients with advanced pancreatic cancer receiving first-line palliative chemotherapy within a universal health care system found that drug funding decisions were associated with increased uptake of new treatment options over time and improved survival. Both FOLFIRINOX and GEMNAB were associated with survival benefits in distinct patient populations.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Desoxicitidina/análogos & derivados , Cuidados Paliativos/economia , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/mortalidade , Adulto , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Estudos de Coortes , Desoxicitidina/economia , Desoxicitidina/uso terapêutico , Feminino , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Ontário , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Neoplasias Pancreáticas/economia , Estudos Retrospectivos , Taxa de Sobrevida , Gencitabina , Neoplasias Pancreáticas
3.
J Manag Care Spec Pharm ; 27(10): 1367-1375, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34595948

RESUMO

BACKGROUND: Pancreatic cancer is associated with low median overall survival. Combination chemotherapy regimens FOLFIRINOX and gemcitabine with nab-paclitaxel (GemNab) are the new adjuvant treatment standards for resectable pancreatic cancer. PRODIGE-24 and APACT trials demonstrated superior clinical outcomes with FOLFIRINOX and GemNab, each vs gemcitabine monotherapy. OBJECTIVE: To evaluate the cost-effectiveness of FOLFIRINOX vs GemNab for resectable pancreatic cancer in adults from the U.S. payer perspective, in order to inform decision makers about which of these treatments is optimal. METHODS: A Markov model with 3 disease states (relapse free, progressive disease, and death) was developed. Cycle length was 1 month, and time horizon was 10 years. Transition probabilities were derived from PRODIGE-24 and APACT survival data. All cost and utility input parameters were obtained from published literature. Cost-effectiveness analysis was performed to obtain total costs, quality-adjusted life-years (QALYs), life-years (LYs), and incremental cost-effectiveness ratio (ICER). A 3% annual discount rate was applied to costs and outcomes. The effect of uncertainty on model parameters was assessed with 1-way and probabilistic sensitivity analysis (PSA). RESULTS: Our analysis estimated that the cost for FOLFIRINOX was $40,831 higher than GemNab ($99,669 vs. $58,837). Despite increased toxicity, FOLFIRINOX was associated with additional 0.18 QALYs and 0.25 LYs compared with GemNab (QALY: 1.65 vs. 1.47; LY: 2.09 vs. 1.84). The ICER for FOLFIRINOX vs GemNab was $226,841 per QALY and $163,325 per LY. FOLFIRINOX was not cost-effective at a willingness-to-pay (WTP) threshold of $200,000 per QALY, and this was confirmed by the PSA. CONCLUSIONS: Total monthly cost for FOLFIRINOX was approximately 1.7 times higher than GemNab. If the WTP threshold increases to or above $250,000 per QALY, FOLFIRINOX then becomes a cost-effective treatment option. DISCLOSURES: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. The authors have no conflicts of interest to declare.


Assuntos
Albuminas/economia , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Desoxicitidina/análogos & derivados , Paclitaxel/economia , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/cirurgia , Análise Custo-Benefício/métodos , Desoxicitidina/economia , Intervalo Livre de Doença , Quimioterapia Combinada/economia , Feminino , Fluoruracila/economia , Humanos , Irinotecano/economia , Leucovorina/economia , Masculino , Cadeias de Markov , Oxaliplatina/economia , Anos de Vida Ajustados por Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Estados Unidos , Gencitabina , Neoplasias Pancreáticas
4.
Future Oncol ; 17(33): 4561-4570, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34382416

RESUMO

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.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/economia , Medicamentos Biossimilares/economia , Filgrastim/economia , Neoplasias Pancreáticas/tratamento farmacológico , Polietilenoglicóis/economia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Medicamentos Biossimilares/uso terapêutico , Simulação por Computador , Redução de Custos/estatística & dados numéricos , Análise Custo-Benefício , Custos de Medicamentos , Filgrastim/uso terapêutico , Fluoruracila/economia , Fluoruracila/uso terapêutico , Acessibilidade aos Serviços de Saúde/economia , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Pessoa de Meia-Idade , Modelos Econômicos , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Neoplasias Pancreáticas/economia , Neoplasias Pancreáticas/patologia , Polietilenoglicóis/uso terapêutico , Programa de SEER/estatística & dados numéricos
5.
Pancreatology ; 20(7): 1434-1441, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32967794

RESUMO

BACKGROUND: Objectives: Pancreatic cancer (PC) is a costly disease with a limited life-expectancy as it generally presents as an advanced, metastatic disease. Though current literature suggests cost varies by first line treatment, there is limited real-world knowledge about the economic burden of pancreatic cancer. This study describes the economic burden of pancreatic cancer patients overall and by observed first line treatments. METHODS: The IBM MarketScan databases were used to identify adult metastatic PC patients from January 1, 2010 through 3/31/2017. Those without other primary cancers, pregnancy, or prior PC treatment, and with 6 months of continuous enrollment prior to PC were included. Treatment patterns and healthcare utilization and expenditures were measured during the variable-length follow-up period. Continuous measures were presented as per patient per month (PPPM). RESULTS: A total of 6,360 patients met all inclusion criteria. Almost half (46.8%) of patients were untreated. Gemcitabine alone (15.6%) and FOLFIRINOX (11.4%) were the most commonly observed first line regimens. Treated patients incurred $17,513 PPPM (Gemcitabine alone) to $27,889 PPPM (FOLFIRINOX) during follow-up. Untreated patients incurred the highest unadjusted ($30,777 PPPM) and adjusted ($20,392 PPPM) cost. CONCLUSIONS: Metastatic PC patients incur a high economic burden driven by high utilization of healthcare resources, which varies by first line treatment. Also, the high proportion of untreated patients is alarming as these patients may be the most expensive of all patients. There is an unmet need in these patients for effective treatments that also reduce their economic burden.


Assuntos
Efeitos Psicossociais da Doença , Neoplasias Pancreáticas/economia , Idoso , Antimetabólitos Antineoplásicos/economia , Antimetabólitos Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Custos e Análise de Custo , Bases de Dados Factuais , Desoxicitidina/análogos & derivados , Desoxicitidina/economia , Desoxicitidina/uso terapêutico , Feminino , Fluoruracila/economia , Fluoruracila/uso terapêutico , Seguimentos , Custos de Cuidados de Saúde , Recursos em Saúde , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Avaliação das Necessidades , Metástase Neoplásica , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Neoplasias Pancreáticas/tratamento farmacológico , Estudos Retrospectivos , Gencitabina
6.
J Manag Care Spec Pharm ; 26(7): 872-878, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32584677

RESUMO

BACKGROUND: Management of metastatic pancreatic ductal adenocarcinoma (mPDA) places a significant financial burden on the U.S. health care system because of such factors as treatment with multidrug chemotherapy regimens, management of chemotherapy-related adverse events, and disease- or treatment-related hospitalizations. Depending on functional status, first-line chemotherapy regimens that are guideline recommended include nab-paclitaxel with gemcitabine (AG) and FOLFIRINOX (FFX), the combination of fluorouracil, leucovorin, irinotecan, and oxaliplatin. However, few previous studies have examined overall health care costs associated with mPDA management. OBJECTIVE: To describe health care costs following initiation of first-line treatment with AG or FFX among patients with mPDA. METHODS: Retrospective cohorts of first-line AG and FFX initiators were constructed from the MarketScan database (2014-2017). The index date was the date of first-line AG or FFX initiation. Included patients had insurance enrollment for 6 months before the index date. Total cumulative health care costs and costs from outpatient services, inpatient admissions, emergency department visits, chemotherapy administrations, and pharmacy dispensing were assessed within 12 months after the index date (i.e., 0-1, 0-2, …, 0-12 months). Patient-level cost data began accruing from the first paid claim and continued accruing until the censoring date. RESULTS: A total of 2,199 patients with mPDA initiated first-line AG (n = 1,352) or FFX (n = 847). Compared with AG initiators, FFX patients were younger (mean age 59 vs. 63 years) and had better baseline health status, with fewer having diabetes (43% vs. 57%) or coronary artery disease (12% vs. 22%). Median follow-up was 5.4 and 7.2 months for AG and FFX, respectively. Median first-line treatment duration was 2.1 months with AG and 2.3 months with FFX. Six months following first-line treatment initiation, total cumulative health care costs (median) were $85,714 (95% CI = $79,683-$91,788) and $114,116 (95% CI = $105,816-$119,591) for AG and FFX initiators, respectively. Outpatient services contributed the largest fractional cost for both groups. CONCLUSIONS: Total health care costs for patients with mPDA who initiated FFX or AG are driven mostly by outpatient rather than inpatient costs. Further research, using comparative methodology, is warranted to fully understand cost drivers and whether higher costs for FFX patients relate primarily to use of FFX or higher underlying use of outpatient care among FFX patients. DISCLOSURES: This study was funded by Halozyme Therapeutics. Oestreicher and Yeganegi were employees of Halozyme Therapeutics at the time of the study and were involved in study design, data interpretation, and the decision to submit the data for publication. Bullock reports advisory board fees from Eisai, Exelixis, Bayer, and Taiho and consulting fees from Halozyme Therapeutics, outside the submitted work. Rowan reports consulting fees from Halozyme Therapeutics, during the conduct of the study. Chiorean reports grants and consulting fees from Celgene and Halozyme Therapeutics; grants from Lilly, Stemline, Ignyta, Roche, Merck, Boehringer-Ingelheim, Bristol Meyer Squibb, Incyte, Macrogenics, Rafael, and AADi; and consulting fees from Astra Zeneca, Array, Eisai, Ipsen, Five Prime Therapeutics, Seattle Genetics, Vicus, and Legend, outside the submitted work.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/economia , Carcinoma Ductal Pancreático/tratamento farmacológico , Carcinoma Ductal Pancreático/economia , Custos de Cuidados de Saúde/tendências , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/economia , Idoso , Idoso de 80 Anos ou mais , Assistência Ambulatorial/economia , Assistência Ambulatorial/tendências , Antineoplásicos/administração & dosagem , Antineoplásicos/economia , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Estudos de Coortes , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Desoxicitidina/economia , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/economia , Seguimentos , Hospitalização/economia , Hospitalização/tendências , Humanos , Irinotecano/administração & dosagem , Irinotecano/economia , Leucovorina/administração & dosagem , Leucovorina/economia , Masculino , Pessoa de Meia-Idade , Oxaliplatina/administração & dosagem , Oxaliplatina/economia , Estudos Retrospectivos , Gencitabina
7.
Pancreatology ; 19(2): 325-330, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30704852

RESUMO

OBJECTIVES: The analysis was conducted to assess the effect of front-line combination chemotherapies on progression free survival (PFS). METHODS: The analysis was restricted to phase III randomized controlled trials (RCTs) in first-line therapy for advanced pancreatic cancer. The European Society for Medical Oncology Magnitude of Clinical Benefit Scale (ESMO-MCBS) was applied to the above phase III RCTs. We have also calculated differences in PFS between the different arms of each trial and the pharmacological costs necessary to get the benefit in PFS, for each trial. RESULTS: Our study evaluated 11 phase III randomized controlled trials (RCTs), including 4572 patients. Combining the costs of therapy with the measure of efficacy represented by the PFS, we have obtained 74.12 € per month of PFS gained for 5-FU, leucovorin, irinotecan and oxaliplatin (FOLFIRINOX), 90.14 per month of PFS gained for gemcitabine and oxaliplatin (GEMOX) and 4708.70 € per month of PFS gained for the combination of gemcitabine plus nab-pacliatxel against gemcitabine alone. CONCLUSIONS: Combining pharmacological costs with the measure of efficacy represented by PFS, FOLFIRINOX is a cost-effective first-line for advanced pancreatic cancer.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/economia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Pancreáticas/tratamento farmacológico , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Resultado do Tratamento
8.
Am J Manag Care ; 25(1 Suppl): S11-S16, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30681820

RESUMO

Pancreatic cancer is typically diagnosed in the late stage of the disease, making it the fourth leading cause of cancer-related death in the United States. It is also one of the few cancers with an increasing incidence, particularly in the younger population. By 2030, it is expected to become the second leading cause of cancer-related death. Patients with pancreatic cancer encounter monthly medical costs 15 times higher than those without, with costs highest in the later stages of the disease. Treatments for pancreatic cancer include surgery (available to fewer than 20% of newly diagnosed patients) and, for advanced disease, chemotherapy with gemcitabine with nab-paclitaxel or FOLFIRINOX, which can increase overall survival (OS) by a few months. Economic and outcome analyses of clinical data find no significant difference in OS between the 2 regimens, although FOLFIRINOX carries a much higher rate of serious adverse effects, limiting its use to patients with good performance status. In 2017, the FDA approved immunotherapy for patients with microsatellite instability-high or mismatch repair-deficient solid tumors, which occurs in approximately 1% of pancreatic cancer diagnoses. Several immunotherapies and targeted therapies are currently in clinical trials and may significantly alter the trajectory of the disease. However, they typically cost more than $100,000 per year, putting significant strain on payers. Thus, it is important that payers plan now for the potential arsenal of new treatments and identify opportunities to manage their utilization as well as patients with the disease to contain costs.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/economia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/economia , Controle de Custos , Análise Custo-Benefício , Desoxicitidina/análogos & derivados , Desoxicitidina/economia , Desoxicitidina/uso terapêutico , Detecção Precoce de Câncer/economia , Detecção Precoce de Câncer/métodos , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Instabilidade de Microssatélites/efeitos dos fármacos , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Neoplasias Pancreáticas/patologia , Assistência Terminal , Gencitabina
9.
BioDrugs ; 32(6): 585-606, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30499082

RESUMO

BACKGROUND: The last decade has seen the increasing use of biological medicines in combination with chemotherapy containing 5-fluorouracil/oxaliplatin or irinotecan for the treatment of metastatic colorectal cancer (mCRC). These combinations have resulted in increased progression-free survival (PFS) in patients with mCRC; however, there are remaining concerns over the extent of their effect on overall survival (OS). Published studies to date suggest no major differences between the three currently available monoclonal antibodies (MoAbs); however, there are differences in costs. In addition, there is rising litigation in Brazil in order to access these medicines as they are currently not reimbursed. OBJECTIVE: The aim was to investigate the comparative effectiveness and safety of three MoAbs (bevacizumab, cetuximab and panitumumab) associated with fluoropyrimidine-based chemotherapy regimens and compared to fluoropyrimidine-based chemotherapy alone in patients with mCRC, through an updated systematic review and meta-analysis of concurrent or non-concurrent observational cohort studies, to guide authorities and the judiciary. METHOD: A systematic review and meta-analysis was performed based on cohort studies published in databases up to November 2017. Effectiveness measures included OS, PFS, post-progression survival (PPS), Response Evaluation Criteria In Solid Tumors (RECIST), response rate, metastasectomy and safety. The methodological quality of the studies was also evaluated. RESULTS: A total of 21 observational cohort studies were included. There were statistically significant and clinically relevant benefits in patients treated with bevacizumab versus no bevacizumab mainly around OS, PFS, PPS and the metastasectomy rate, but not for the disease control rates. However, there was an increase in treatment-related toxicities and concerns with the heterogeneity of the studies. CONCLUSION: The results pointed to an advantage in favor of bevacizumab for OS, PFS, PPS, and metastasectomy. Although this advantage may be considered clinically modest, bevacizumab represents a hope for increased survival and a chance of metastasectomy for patients with mCRC. However, there are serious adverse events associated with its use, especially severe hypertension and gastrointestinal perforation, that need to be considered.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Análise Custo-Benefício , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Bevacizumab/economia , Bevacizumab/uso terapêutico , Brasil , Cetuximab/economia , Cetuximab/uso terapêutico , Neoplasias Colorretais/mortalidade , Intervalo Livre de Doença , Honorários Farmacêuticos , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Hipertensão/induzido quimicamente , Hipertensão/epidemiologia , Incidência , Perfuração Intestinal/induzido quimicamente , Perfuração Intestinal/epidemiologia , Irinotecano/economia , Irinotecano/uso terapêutico , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Panitumumabe/economia , Panitumumabe/uso terapêutico , Mecanismo de Reembolso/legislação & jurisprudência , Critérios de Avaliação de Resposta em Tumores Sólidos
10.
Pharmacoeconomics ; 36(11): 1333-1343, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29981004

RESUMO

BACKGROUND: Gemcitabine (GEM), oxaliplatin plus GEM (OX + GEM), cisplatin plus GEM (CIS + GEM), capecitabine plus GEM (CAP + GEM), FOLFIRINOX (FFX), and nab-paclitaxel plus GEM (NAB-P + GEM) are the most commonly used regimens as first-line treatment of metastatic pancreatic cancer (MPC) in the UK. Independent economic evaluation of these regimens simultaneously has not been conducted for the UK. OBJECTIVE: Using data from a network meta-analysis as efficacy measures, we estimated the cost effectiveness and cost utility of these regimens for the UK. METHODS: A three-state Markov model (progression-free, progressed-disease, and death) simulating the total costs and health outcomes (quality-adjusted life-years [QALYs] gained and life-years [LYs]) was developed to estimate the incremental cost-utility (ICUR) and incremental cost-effectiveness ratios (ICER) for patients with MPC, from the payer perspective. The model was specified to calculate total costs in 2017 British pounds (GBP, £). All values were discounted at 3.5% per year over a full lifetime horizon. One-way sensitivity and probabilistic sensitivity analyses were conducted to assess the impact of parameter uncertainty on the results. RESULTS: FFX was the most effective regimen, NAB-P + GEM was the most costly regimen, and GEM was the least costly and least effective regimen. OX + GEM, CIS + GEM, and NAB-P + GEM were dominated by CAP + GEM and FFX. Compared with GEM, the ICUR for CAP + GEM and FFX was £28,066 and £33,020/QALY gained, respectively; compared with GEM, the ICER for CAP + GEM and FFX was £17,437 and £22,291/LY gained, respectively; and compared with CAP + GEM, the ICUR and ICER for FFX were £34,947/QALY gained and 24,414/LY gained, respectively. CONCLUSIONS: At a threshold value of £30,000/QALY, CAP + GEM was found to be the only cost-effective regimen in the management of MPC in the UK.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias Pancreáticas/tratamento farmacológico , Anos de Vida Ajustados por Qualidade de Vida , Adulto , Albuminas/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/economia , Capecitabina/administração & dosagem , Cisplatino/administração & dosagem , Análise Custo-Benefício , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Progressão da Doença , Fluoruracila/administração & dosagem , Fluoruracila/economia , Humanos , Irinotecano/administração & dosagem , Irinotecano/economia , Leucovorina/administração & dosagem , Leucovorina/economia , Cadeias de Markov , Metástase Neoplásica , Metanálise em Rede , Oxaliplatina/administração & dosagem , Oxaliplatina/economia , Paclitaxel/administração & dosagem , Neoplasias Pancreáticas/economia , Neoplasias Pancreáticas/patologia , Intervalo Livre de Progressão , Reino Unido , Gencitabina
11.
PLoS One ; 13(6): e0199553, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29953476

RESUMO

BACKGROUND: There is no single standard chemotherapy regimen for elderly patients with advanced gastric cancer (AGC). A phase III trial has confirmed that both capecitabine monotherapy and capecitabine plus oxaliplatin are well tolerated for elderly patients with AGC, but their economic influence in China is unknown. OBJECTIVE: The purpose of this cost-effectiveness analysis was to estimate the effects of capecitabine monotherapy and capecitabine plus oxaliplatin in elderly patients with AGC on health and economic outcomes in China. METHODS: We created a Markov model based on data from a Korean clinical phase III trial to analyze the cost-effectiveness of the treatment of elderly patients in the capecitabine monotherapy (X) group and capecitabine plus oxaliplatin (XELOX) group. The costs were obtained from published reports and the local health system. The utilities were assumed on the basis of the published literature. Costs, quality-adjusted life years (QALYs), and incremental cost-effectiveness ratios (ICER) were estimated. One-way and probabilistic sensitivity analyses (Monte Carlo simulations) were performed. RESULTS: In the cost-effectiveness analysis, X had a lower total cost ($45,731.68) and cost-effectiveness ratio ($65,918.93/QALY). The one-way sensitivity analysis suggested that the most influential parameter was the risk of requiring second-line chemotherapy in XELOX group. The probabilistic sensitivity analysis predicted that the X regimen was cost-effective 100% of the time, given a willingness-to-pay threshold of $26,598. CONCLUSIONS: Our findings show that the XELOX regimen is less cost-effective compared to the X regimen for elderly patients with AGC in China from a Chinese healthcare perspective.


Assuntos
Antineoplásicos/administração & dosagem , Capecitabina/administração & dosagem , Oxaliplatina/administração & dosagem , Neoplasias Gástricas/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Antineoplásicos/economia , Capecitabina/efeitos adversos , Capecitabina/economia , China , Simulação por Computador , Análise Custo-Benefício , Quimioterapia Combinada/economia , Humanos , Oxaliplatina/efeitos adversos , Oxaliplatina/economia , República da Coreia , Neoplasias Gástricas/economia , Resultado do Tratamento
12.
Pharmacoeconomics ; 36(10): 1153-1163, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29600384

RESUMO

As part of the single technology appraisal (STA) process, the National Institute for Health and Care Excellence (NICE) invited Celgene Ltd to submit clinical and cost-effectiveness evidence for paclitaxel as albumin-bound nanoparticles (Nab-Pac) in combination with gemcitabine (Nab-Pac + Gem) for patients with untreated metastatic pancreatic cancer. The STA was a review of NICE's 2015 guidance (TA360) in which Nab-Pac + Gem was not recommended for patients with untreated metastatic pancreatic cancer. The review was prompted by a proposed Patient Access Scheme (PAS) discount on the price of Nab-Pac and new evidence that might lead to a change in the guidance. The Liverpool Reviews and Implementation Group at the University of Liverpool was the Evidence Review Group (ERG). This article summarises the ERG's review of the company's evidence submission for Nab-Pac + Gem, and the Appraisal Committee (AC) decision. The final scope issued by NICE listed three comparators: gemcitabine monotherapy (Gem), gemcitabine in combination with capecitabine (Gem + Cap), and a combination of oxaliplatin, irinotecan, leucovorin and fluorouracil (FOLFIRINOX). Clinical evidence for the comparison of Nab-Pac + Gem versus Gem was from the phase III CA046 randomized controlled trial. Analysis of progression-free survival (PFS) and overall survival (OS) showed statistically significant improvement for patients treated with Nab-Pac + Gem versus Gem. Clinical evidence for the comparison of Nab-Pac + Gem versus FOLFIRINOX and versus Gem + Cap was derived from a network meta-analysis (NMA). Results of the NMA did not indicate a statistically significant difference in OS or PFS for the comparison of Nab-Pac + Gem versus either Gem + Cap or FOLFIRINOX. The ERG's main concerns with the clinical effectiveness evidence were difficulties in identifying the patient population for whom treatment with Nab-Pac + Gem is most appropriate, and violation of the proportional hazards (PH) assumption in the CA046 trial. The ERG highlighted methodological issues in the cost-effectiveness analysis pertaining to the modelling of survival outcomes, estimation of drug costs and double counting of adverse-event disutilities. The AC accepted all the ERG's amendments to the company's cost-effectiveness model; however, these did not make important differences to the incremental cost-effectiveness ratios (ICERs). The company's base-case ICER was £46,932 per quality-adjusted life-year (QALY) gained for the comparison of Nab-Pac + Gem versus Gem. Treatment with Nab-Pac + Gem was dominated both by treatment with Gem + Cap and with FOLFIRINOX in the company's base case. The AC concluded that the most plausible ICER for treatment with Nab-Pac + Gem versus Gem was in the range of £41,000-£46,000 per QALY gained. The AC concluded that Nab-Pac + Gem was not cost effective compared with Gem + Cap or FOLFIRINOX, and accepted that treatment with Nab-Pac + Gem met the end-of-life criteria versus Gem but did not consider Nab-Pac + Gem to meet the end-of-life criteria compared with Gem + Cap or FOLFIRINOX. The AC also concluded that although patients who would receive Nab-Pac + Gem rather than FOLFIRINOX or Gem + Cap were difficult to distinguish, they were identifiable in clinical practice. The AC recommended treatment with Nab-Pac + Gem for patients with untreated metastatic pancreatic cancer for whom other combination chemotherapies were unsuitable and who would otherwise receive Gem.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/economia , Análise Custo-Benefício/estatística & dados numéricos , Desoxicitidina/análogos & derivados , Paclitaxel/economia , Neoplasias Pancreáticas/economia , Avaliação da Tecnologia Biomédica/estatística & dados numéricos , Antimetabólitos Antineoplásicos/economia , Antimetabólitos Antineoplásicos/uso terapêutico , Antineoplásicos Fitogênicos/economia , Antineoplásicos Fitogênicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Capecitabina/economia , Capecitabina/uso terapêutico , Desoxicitidina/economia , Desoxicitidina/uso terapêutico , Intervalo Livre de Doença , Fluoruracila/economia , Fluoruracila/uso terapêutico , Humanos , Irinotecano/economia , Irinotecano/uso terapêutico , Leucovorina/economia , Leucovorina/uso terapêutico , Modelos Econômicos , Nanopartículas/economia , Nanopartículas/uso terapêutico , Oxaliplatina/economia , Oxaliplatina/uso terapêutico , Paclitaxel/uso terapêutico , Neoplasias Pancreáticas/tratamento farmacológico , Neoplasias Pancreáticas/secundário , Gencitabina
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