ABSTRACT
BACKGROUND AND OBJECTIVE: The cost of treating cutaneous T-cell lymphoma (CTCL) in Spain is unknown. With the advent of new treatments, it is more important than ever to gain an accurate picture of the true costs involved. The MICADOS study had 2 primary objectives: 1)to evaluate the impact of CTCL on patient quality of life, and 2)to evaluate the costs associated with the disease. This article reports the results of the cost analysis. METHODS: We estimated the cost of treating CTCL over a period of 1year from the perspective of the Spanish National Health System. Twenty-three dermatologists and hematologists from 15 public hospitals analyzed data for adult patients with mycosis fungoides (MF) or Sézary syndrome (SS). RESULTS: A total of 141 patients (57.4% male) with a mean age of 63.6 years (95%CI: 61.4-65.7 years) were included. The mean direct annual cost of treating CTCL was 34,214 per patient. The corresponding costs by stage were 11,952.47 for stageI disease, 23,506.21 for stageII disease, 38,771.81 for stageIII disease, and 72,748.84 for stageIV disease. The total direct annual cost of treating MF/SS in public hospitals in Spain was estimated at 78,301,171; stageI disease accounted for 81% of all costs, stageII for 7%, and stagesIII andIV for 6% each. CONCLUSIONS: The MICADOS study offers an accurate picture of the direct cost of treating CTCL in patients with MF/SS in Spain and shows that costs vary significantly according to disease stage. Patient-borne and indirect costs should be analyzed in future studies.
Subject(s)
Lymphoma, T-Cell, Cutaneous , Mycosis Fungoides , Sezary Syndrome , Skin Neoplasms , Adult , Humans , Male , Middle Aged , Female , Quality of Life , Spain/epidemiology , Skin Neoplasms/therapy , Skin Neoplasms/pathology , Lymphoma, T-Cell, Cutaneous/epidemiology , Lymphoma, T-Cell, Cutaneous/therapy , Lymphoma, T-Cell, Cutaneous/pathology , Mycosis Fungoides/therapy , Mycosis Fungoides/pathology , Sezary Syndrome/therapy , Sezary Syndrome/pathologyABSTRACT
BACKGROUND AND OBJECTIVE: The cost of treating cutaneous T-cell lymphoma (CTCL) in Spain is unknown. With the advent of new treatments, it is more important than ever to gain an accurate picture of the true costs involved. The MICADOS study had 2 primary objectives: 1)to evaluate the impact of CTCL on patient quality of life, and 2)to evaluate the costs associated with the disease. This article reports the results of the cost analysis. METHODS: We estimated the cost of treating CTCL over a period of 1year from the perspective of the Spanish National Health System. Twenty-three dermatologists and hematologists from 15 public hospitals analyzed data for adult patients with mycosis fungoides (MF) or Sézary syndrome (SS). RESULTS: A total of 141 patients (57.4% male) with a mean age of 63.6 years (95%CI: 61.4-65.7 years) were included. The mean direct annual cost of treating CTCL was 34,214 per patient. The corresponding costs by stage were 11,952.47 for stageI disease, 23,506.21 for stageII disease, 38,771.81 for stageIII disease, and 72,748.84 for stageIV disease. The total direct annual cost of treating MF/SS in public hospitals in Spain was estimated at 78,301,171; stageI disease accounted for 81% of all costs, stageII for 7%, and stagesIII andIV for 6% each. CONCLUSIONS: The MICADOS study offers an accurate picture of the direct cost of treating CTCL in patients with MF/SS in Spain and shows that costs vary significantly according to disease stage. Patient-borne and indirect costs should be analyzed in future studies.
Subject(s)
Lymphoma, T-Cell, Cutaneous , Mycosis Fungoides , Sezary Syndrome , Skin Neoplasms , Adult , Humans , Male , Middle Aged , Female , Quality of Life , Spain/epidemiology , Skin Neoplasms/therapy , Skin Neoplasms/pathology , Lymphoma, T-Cell, Cutaneous/therapy , Lymphoma, T-Cell, Cutaneous/pathology , Mycosis Fungoides/therapy , Mycosis Fungoides/pathology , Sezary Syndrome/therapy , Sezary Syndrome/pathologyABSTRACT
INTRODUCCIÓN Y OBJETIVOS: El volumen metabólico tumoral (VMT) es un indicador de pronóstico prometedor en el linfoma B difuso de células grandes (LBDCG). El objetivo del presente estudio es evaluar los diferentes métodos para el cálculo del VMT basal con la tomografía por emisión de positrones/tomografía computarizada con 18F-fluorodesoxiglucosa (18F-FDG PET/TC) en pacientes con LBDCG, relacionando cada uno de los volúmenes medidos con la supervivencia libre de progresión (SLP) y la supervivencia global (SG). METODOLOGÍA: Se trata de un estudio de cohortes retrospectivo analítico, en el que se incluyeron 34 pacientes sometidos a un 18F-FDG PET/TC basal previo al tratamiento. Comparamos tres umbrales SUV 2,5, SUV 40% del SUV máximo y SUV medio hepático (PERCIST), para el cálculo de los biomarcadores VMT y glucólisis total de la lesión (TLG) relacionándolos con la SLP y SG. El mejor modelo predictivo se seleccionó en función del valor de criterio de información de Akaike (AIC) después de realizar una regresión de riesgos proporcionales de Cox. RESULTADOS: Con relación a la SLP, muestran diferencias estadísticamente significativas: VMT 2,5, TLG 2,5, VMT 40%, TLG 40%, VMT y TLG calculados con el umbral PERCIST. Entre estos, el que tiene un AIC menor es VMT 2,5, por lo que se considera el mejor parámetro para predecir la SLP. Con respecto a la SG, muestra diferencias estadísticamente significativas: VMT 2,5, VMT y TLG calculados con el umbral PERCIST. Entre estos tres, el que tiene un AIC menor es VMT 2,5, por lo que se considera el mejor parámetro para predecir la SG. Además, un mayor valor de VMT y TLG, se asocia a peor SLP y SG. CONCLUSIÓN: El VMT calculado con el umbral SUV 2,5 parece ser el mejor parámetro para predecir la SLP y SG en los pacientes diagnosticados con LBDCG con el 18F-FDG PET/TC
INTRODUCTION AND OBJECTIVES: Metabolic tumor volume (MTV) is a promising indicator of prognosis in diffuse large B-cell lymphoma (DLBCL). The aim of the present study is to evaluate the different methods for the calculation of the basal metabolic tumor volume with 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in the patients with DLBCL, relating each one of the volumes measured with progression-free survival (PFS) and overall survival (OS). METHODOLOGY: This is a retrospective analytical cohort study, in which 34 patients underwent to 18F-FDG PET/CT baseline prior to treatment. We compared three SUV thresholds 2.5, SUV 40% of the maximum SUV and SUV mean hepatic uptake (PERCIST) for the calculation of MTV and total lesion glycolysis (TLG) biomarkers, relating them to the PFS and OS. The best predictive model was selected based on the Akaike's information criterion (AIC) after performing a Cox proportional hazards regression. RESULTS: In relation to the PFS, they show statistically significant differences: MTV 2.5, TLG 2.5, MTV 40, TLG 40, MTV and TLG calculated with the PERCIST threshold. Among these, the one that has a lower AIC is MTV 2.5, so it is considered the best parameter to predict the PFS. With respect to OS, it shows statistically significant differences: MTV 2.5, VMT and TLG calculated with the PERCIST threshold. Among these three, the one with the lowest AIC is MTV 2.5, which is why it is considered the best parameter to predict OS. In addition, a higher value of MTV and total tumor glycolysis (TLG), is associated with worse PFS and OS. CONCLUSION: The MTV calculated with the threshold SUV 2.5 seems to be the best parameter to predict PFS and OS in patients diagnosed with DLBCL with 18F-FDG PET/CT
Subject(s)
Humans , Male , Female , Middle Aged , Aged , Positron-Emission Tomography/methods , Lymphoma, Large B-Cell, Diffuse/diagnostic imaging , Lymphoma, Large B-Cell, Diffuse/metabolism , Fluorodeoxyglucose F18 , Neoplasm Staging , Retrospective Studies , Cohort Studies , PrognosisABSTRACT
INTRODUCTION AND OBJECTIVES: Metabolic tumor volume (MTV) is a promising indicator of prognosis in diffuse large B-cell lymphoma (DLBCL). The aim of the present study is to evaluate the different methods for the calculation of the basal metabolic tumor volume with 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) in the patients with DLBCL, relating each one of the volumes measured with progression-free survival (PFS) and overall survival (OS). METHODOLOGY: This is a retrospective analytical cohort study, in which 34 patients underwent to 18F-FDG PET/CT baseline prior to treatment. We compared three SUV thresholds 2.5, SUV 40% of the maximum SUV and SUV mean hepatic uptake (PERCIST) for the calculation of MTV and total lesion glycolysis (TLG) biomarkers, relating them to the PFS and OS. The best predictive model was selected based on the Akaike's information criterion (AIC) after performing a Cox proportional hazards regression. RESULTS: In relation to the PFS, they show statistically significant differences: MTV 2.5, TLG 2.5, MTV 40, TLG 40, MTV and TLG calculated with the PERCIST threshold. Among these, the one that has a lower AIC is MTV 2.5, so it is considered the best parameter to predict the PFS. With respect to OS, it shows statistically significant differences: MTV 2.5, VMT and TLG calculated with the PERCIST threshold. Among these three, the one with the lowest AIC is MTV 2.5, which is why it is considered the best parameter to predict OS. In addition, a higher value of MTV and total tumor glycolysis (TLG), is associated with worse PFS and OS CONCLUSION: The MTV calculated with the threshold SUV 2.5 seems to be the best parameter to predict PFS and OS in patients diagnosed with DLBCL with 18F-FDG PET/CT.
Subject(s)
Fluorine Radioisotopes , Fluorodeoxyglucose F18 , Lymphoma, Large B-Cell, Diffuse/diagnostic imaging , Radiopharmaceuticals , Aged , Algorithms , Female , Glycolysis , Humans , Kaplan-Meier Estimate , Lymphoma, Large B-Cell, Diffuse/metabolism , Lymphoma, Large B-Cell, Diffuse/mortality , Lymphoma, Large B-Cell, Diffuse/pathology , Male , Middle Aged , Positron Emission Tomography Computed Tomography/methods , Prognosis , Progression-Free Survival , Proportional Hazards Models , Retrospective Studies , Tumor BurdenABSTRACT
Patients with mantle cell lymphoma (MCL) have an adverse outcome after relapse. Bendamustine has demonstrated a good efficacy and toxicity profile in previously reported trials. In this study, we present a retrospective analysis of the Spanish experience in relapsed/refractory MCL treated with bendamustine in combination or alone with the objective of knowing the efficacy and toxicity profile of this treatment in our current clinical practice. Fifty eight patients were registered: 67 % male with median age of 71 years, and 2 is the median number of previous lines. The most frequent bendamustine regimen was bendamustine plus rituximab (83 %). The median number of cycles was 5 (range 1-8). The overall response rate was 84 % with 53 % of complete response/unconfirmed complete response (CR/uCR). Median progression-free survival (PFS) was 16 months (95 % confidence interval (CI) 13.3-18.8), and for patients who achieved CR/uCR, it was 33 months (95 % CI 11.1-54.2). Median overall survival (OS) was 30 months (95 % CI 25.6-34.9). For PFS, only blastoid histology and not achieving CR after bendamustine had a significant negative impact on the univariate and multivariate analyses (p < 0.05). Nevertheless, for OS, only an elevated lactate dehydrogenase (LDH) had negative impact on both, univariate and multivariate analyses (p < 0.05). Only one case of treatment-related mortality in a 79-year-old patient with very bad performance status was reported. In 280 cycles, 12 (4 %) hospitalizations for febrile neutropenia were reported. In our population, bendamustine has been a good salvage treatment with a favorable toxicity profile in a non selected and heavily pretreated population of patients with MCL.
Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Lymphoma, Mantle-Cell/drug therapy , Nitrogen Mustard Compounds/therapeutic use , Salvage Therapy , Adult , Aged , Aged, 80 and over , Bendamustine Hydrochloride , Drug Resistance, Neoplasm/drug effects , Female , Humans , Lymphoma, Mantle-Cell/epidemiology , Lymphoma, Mantle-Cell/pathology , Male , Middle Aged , Recurrence , Retrospective Studies , Spain/epidemiology , Treatment FailureABSTRACT
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