Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
1.
Artículo en Inglés | MEDLINE | ID: mdl-33408749

RESUMEN

BACKGROUND: The once-daily oral combination of daclatasvir (DCV) and sofosbuvir (SOF), with or without ribavirin (RBV), is effective and well tolerated in patients with hepatitis C virus (HCV). However, further field-practice studies are necessary to investigate the effectiveness and safety of the DCV+SOF combination in diverse subpopulations of patients with HCV, including those who are more challenging to treat such as patients with a genotype 3 (G3) infection. The aim of this retrospective, multicenter, field-practice study was to investigate the therapeutic efficacy and safety of the oral combination of DCV and SOF, with or without RBV (DCV+SOF±RBV), in a large unselected cohort of patients with chronic HCV infection (CHC). PATIENTS AND METHODS: Consecutive patients received DCV+SOF±RBV for 12 or 24 weeks. The efficacy endpoint was sustained virological response at 12 weeks after the end of treatment (SVR12). Safety factors were also considered. RESULTS: A total of 620 patients were included in this study; the predominant genotype was G3 (55.3%). Of the total sample, 248 (40%) patients were treated with DCV+SOF+RBV and 372 (60%) did not receive RBV. The majority of patients assessed at week 12 (98%, 596/608) achieved SVR12. Among G3 patients, 98.8% (335/339) achieved SVR12. The most common adverse event was elevated bilirubin (30.6%), recorded in 4.9% of cases as a grade 3-4 adverse event. CONCLUSION: This study shows the high pan-genotypic effectiveness and safety of the DCV+SOF±RBV combination in a large, unselected sample of CHC patients with G1-4, including a wide proportion of G3 CHC patients.

2.
United European Gastroenterol J ; 6(7): 1039-1048, 2018 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-30228892

RESUMEN

BACKGROUND: Sarcopenia has been associated with poor outcomes in patients with cirrhosis and solid tumours. OBJECTIVE: Analyse the influence of sarcopenia on survival and treatment duration in patients with advanced hepatocellular carcinoma (HCC) treated with sorafenib. METHODS: We conducted a multicentre, retrospective study on 96 patients with advanced HCC treated with sorafenib, all with available abdominal computed tomography (CT) scan within 30 days from treatment start. Anthropometric, laboratory, treatment and follow-up data were collected. Sarcopenia was defined by reduced skeletal muscle index calculated from an L3 section CT image. RESULTS: Sarcopenia was present in 49% of patients. Patients were divided into two groups according to sarcopenia: age was significantly higher in the sarcopenic group (SG) (66 years (31-87) versus 72 years (30-84), p = 0.04], with no difference in other baseline characteristics. The SG showed shorter overall survival (OS) (39 (95% confidence interval (CI) 26-50) versus 61 (95% CI 47-77) weeks (p = 0,01)) and shorter time on treatment (12.3 (95% CI 8-19) versus 25.9 (95% CI 15-33) weeks (p = 0.0044)). At multivariate analysis, sarcopenia was independently associated to reduced OS (p = 0.03) and reduced time on treatment (p = 0.001). CONCLUSION: Sarcopenia is present in almost half of patients with advanced HCC, and is associated with reduced survival and reduced duration of oral chemotherapy.

3.
J Viral Hepat ; 25(12): 1493-1500, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-30112854

RESUMEN

Risk of hepatocellular carcinoma (HCC) in hepatitis C virus cirrhotic patients treated with direct-acting antiviral agents (DAA) is still debating. We investigated it in a large cohort. The cohort comprised 1045 cirrhotic patients who completed treatment with DAA, with a median follow-up of 17.3 months after end of treatment (EOT), including 943 patients without history of HCC and 102 previously treated for HCC. The majority were men (59.9%), with compensated cirrhosis (88.8%), genotype 1b (44.7%). Univariate, multivariate analysis and Kaplan-Meier curves were performed to detect predictors of HCC in patients with and without reduction in alpha-fetoprotein (AFP) during treatment. SVR12 was 95.6%. HCC developed in 95 (9.9%), including 54 of 943 (5.7%) occurrent and 41 of 102 (39%) recurrent tumours. De novo were more often unifocal (P = 0.01) and curable (P = 0.03). AFP decreased from 16.1 ± 36.2 mg/dL (baseline) to 11.4 ± 55 mg/dL (EOT). At univariate analysis, predictors were a previous HCC, older age, higher model for end-stage liver disease, prolonged INR, lower platelets, baseline and EOT AFP, virological failure and no reduction in AFP during treatment. Kaplan-Meier curves showed lower incidence of HCC in patients showing any reduction in AFP (P = 0.001). Those with AFP <6 ng/mL had the lowest risk (P = 0.0002). At logistic regression, platelets (P = 0.009, OR 0.99 CI: 0.99-1.00), previous HCC (P < 0.000 01, OR: 10.76, 95% CI: 5.89-19.34) and no reduction in AFP during treatment (P = 0.0005, OR: 2.98, CI: 1.60-5.54) were independent predictors of HCC. In conclusion, risk of HCC after DAA treatment remains substantial. It is higher among patients with previous HCC, low platelets and without reduction in AFP during treatment.


Asunto(s)
Antivirales/uso terapéutico , Carcinoma Hepatocelular/epidemiología , Fibrosis/complicaciones , Fibrosis/epidemiología , Hepatitis C Crónica/tratamiento farmacológico , Neoplasias Hepáticas/epidemiología , alfa-Fetoproteínas/análisis , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/patología , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Medición de Riesgo , Suero/química , Suero/virología , Respuesta Virológica Sostenida
4.
Liver Int ; 37(4): 514-528, 2017 04.
Artículo en Inglés | MEDLINE | ID: mdl-28105744

RESUMEN

BACKGROUND & AIMS: Despite the excellent efficacy of direct-acting antivirals (DAA) reported in clinical trials, virological failures can occur, often associated with the development of resistance-associated substitutions (RASs). This study aimed to characterize the presence of clinically relevant RASs to all classes in real-life DAA failures. METHODS: Of the 200 virological failures that were analyzed in 197 DAA-treated patients, 89 with pegylated-interferon+ribavirin (PegIFN+RBV) and 111 without (HCV-1a/1b/1g/2/3/4=58/83/1/6/24/25; 56.8% treatment experienced; 65.5% cirrhotic) were observed. Sanger sequencing of NS3/NS5A/NS5B was performed by home-made protocols, at failure (N=200) and whenever possible at baseline (N=70). RESULTS: The majority of the virological failures were relapsers (57.0%), 22.5% breakthroughs, 20.5% non-responders. RAS prevalence varied according to IFN/RBV use, DAA class, failure type and HCV genotype/subtype. It was 73.0% in IFN group vs 49.5% in IFN free, with the highest prevalence of NS5A-RASs (96.1%), compared to NS3-RASs (75.9% with IFN, 70.5% without) and NS5B-RASs (66.6% with IFN, 20.4% without, in sofosbuvir failures). In the IFN-free group, RASs were higher in breakthrough/non-responders than in relapsers (90.5% vs 40.0%, P<.001). Interestingly, 57.1% of DAA IFN-free non-responders had a misclassified genotype, and 3/4 sofosbuvir breakthroughs showed the major-RAS-S282T, while RAS-L159F was frequently found in sofosbuvir relapsers (18.2%). Notably, 9.0% of patients showed also extra target RASs, and 47.4% of patients treated with ≥2 DAA classes showed multiclass resistance, including 11/11 NS3+NS5A failures. Furthermore, 20.0% of patients had baseline-RASs, which were always confirmed at failure. CONCLUSIONS: In our failure setting, RAS prevalence was remarkably high in all genes, with a partial exception for NS5B, whose limited resistance is still higher than previously reported. This multiclass resistance advocates for HCV resistance testing at failure, in all three genes for the best second-line therapeutic tailoring.


Asunto(s)
Antivirales/uso terapéutico , Farmacorresistencia Viral/genética , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Proteínas no Estructurales Virales/genética , Anciano , Quimioterapia Combinada , Femenino , Genotipo , Hepacivirus/efectos de los fármacos , Humanos , Interferones/uso terapéutico , Italia , Masculino , Persona de Mediana Edad , Mutación , Recurrencia , Ribavirina/uso terapéutico , Análisis de Secuencia de ADN , Sofosbuvir/uso terapéutico , Respuesta Virológica Sostenida , Insuficiencia del Tratamiento
5.
Liver Int ; 37(5): 653-661, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-27782373

RESUMEN

BACKGROUND & AIMS: The proportion of HCV-infected patients over age 65 years in Western countries is increasing. This growth and the advent of new antiviral therapy bring into the question the real-world efficacy and safety of the combination of sofosbuvir (SOF) and simeprevir (SMV) plus a flat dose of 800 mg/d ribavirin (RBV) in elderly patients with cirrhosis compared to younger patients. METHODS: Retrospective observational multicentre real-life investigation study of SOF/SMV/RBV for a duration of 12 weeks in HCV genotype 1-infected patients with cirrhosis. RESULTS: Of the 270 patients enrolled in this study, with compensated cirrhosis, 133 (49.2%) were ≥65 years of age. Sustained virological response at 12 weeks (SVR12) was achieved by 94.2% (129/137) of those aged <65 years and 97.7% (130/133) of those ≥65 years. Diabetes was the most common comorbidity in patients ≥65 years compared to younger patients (26.3% vs 12.4% P<.003). The most common adverse event (AE) in elderly patients was a grade 2 anaemia (35.3% vs 19.9% P<.004). CONCLUSIONS: Sofosbuvir/simeprevir plus a daily flat dose of RBV 800 mg for 12 weeks was highly effective and safe in genotype 1 elderly patients with compensated cirrhosis.


Asunto(s)
Antivirales/administración & dosificación , Hepatitis C Crónica/tratamiento farmacológico , Cirrosis Hepática/tratamiento farmacológico , Ribavirina/administración & dosificación , Simeprevir/administración & dosificación , Sofosbuvir/administración & dosificación , Adulto , Anciano , Anciano de 80 o más Años , Anemia/etiología , Antivirales/efectos adversos , Esquema de Medicación , Quimioterapia Combinada , Femenino , Hepacivirus/genética , Humanos , Italia , Cirrosis Hepática/virología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estudios Retrospectivos , Ribavirina/efectos adversos , Simeprevir/efectos adversos , Sofosbuvir/efectos adversos , Respuesta Virológica Sostenida
6.
World J Surg ; 41(1): 241-249, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27495316

RESUMEN

BACKGROUND: Liver transplantation (LT) is a well-established procedure for hepatocellular carcinoma (HCC) within the Milan criteria. Yttrium-90 microspheres radioembolization (Y90-RE) has shown to be an effective and safe treatment of primary liver tumors. We retrospectively evaluate the efficacy of the Y90-RE in patients with HCC prior to LT. METHODS: From January 2002 to December 2015, 365 patients were transplanted at the San Camillo Hospital Center. One hundred forty-three patients were transplanted for HCC, and in 22 cases the patients were treated with Y90-RE before LT. RESULTS: Three patients were treated with Y90-RE within the Milan criteria, and 19 patients were out of criteria before Y90-RE. Four patients had an increasing MELD score between Y90-RE and LT. On the other hand, alpha-fetoprotein decreases after Y90-RE treatment in all cases. No patient death was observed in Y90-RE procedure or at LT. In 78.9 % of cases, a successful downstaging was observed, and in 100 % of cases bridging was achieved. From Y90-RE treatment overall survival was 43.9 months. From LT, overall mean survival was 30.2 months with a free survival of 29.6 months. The overall survival after LT analysis between the patients treated with Y90-RE and patients without was not significant (p = 0.113). Free survival analysis was not significant (p = 0.897) between the two populations. CONCLUSIONS: We successfully performed LT in patients after Y90-RE treatment both as bridging and downstaging for HCC and obtained a similar overall and free survival of LT for HCC within Milan criteria. Y90-RE becomes a real option to provide curative therapy for patients who traditionally are not considered eligible for surgery.


Asunto(s)
Embolización Terapéutica/métodos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/terapia , Radiofármacos/uso terapéutico , Radioisótopos de Itrio/uso terapéutico , Adulto , Anciano , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/terapia , Femenino , Humanos , Trasplante de Hígado , Masculino , Persona de Mediana Edad , Cuidados Preoperatorios , Estudios Retrospectivos
7.
Liver Transpl ; 22(4): 446-58, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-26890629

RESUMEN

Daclatasvir (DCV) is a potent, pangenotypic nonstructural protein 5A inhibitor with demonstrated antiviral efficacy when combined with sofosbuvir (SOF) or simeprevir (SMV) with or without ribavirin (RBV) in patients with chronic hepatitis C virus (HCV) infection. Herein, we report efficacy and safety data for DCV-based all-oral antiviral therapy in liver transplantation (LT) recipients with severe recurrent HCV. DCV at 60 mg/day was administered for up to 24 weeks as part of a compassionate use protocol. The study included 97 LT recipients with a mean age of 59.3 ± 8.2 years; 93% had genotype 1 HCV and 31% had biopsy-proven cirrhosis between the time of LT and the initiation of DCV. The mean Model for End-Stage Liver Disease (MELD) score was 13.0 ± 6.0, and the proportion with Child-Turcotte-Pugh (CTP) A/B/C was 51%/31%/12%, respectively. Mean HCV RNA at DCV initiation was 14.3 × 6 log10 IU/mL, and 37% had severe cholestatic HCV infection. Antiviral regimens were selected by the local investigator and included DCV+SOF (n = 77), DCV+SMV (n = 18), and DCV+SMV+SOF (n = 2); 35% overall received RBV. At the end of treatment (EOT) and 12 weeks after EOT, 88 (91%) and 84 (87%) patients, respectively, were HCV RNA negative or had levels <43 IU/mL. CTP and MELD scores significantly improved between DCV-based treatment initiation and last contact. Three virological breakthroughs and 2 relapses occurred in patients treated with DCV+SMV with or without RBV. None of the 8 patient deaths (6 during and 2 after therapy) were attributed to therapy. In conclusion, DCV-based all-oral antiviral therapy was well tolerated and resulted in a high sustained virological response in LT recipients with severe recurrent HCV infection. Most treated patients experienced stabilization or improvement in their clinical status.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Imidazoles/uso terapéutico , Simeprevir/uso terapéutico , Sofosbuvir/uso terapéutico , Anciano , Antivirales/administración & dosificación , Antivirales/efectos adversos , Carbamatos , Ensayos de Uso Compasivo , Quimioterapia Combinada/métodos , Femenino , Genotipo , Hepacivirus/genética , Hepacivirus/aislamiento & purificación , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/virología , Humanos , Imidazoles/administración & dosificación , Imidazoles/efectos adversos , Cirrosis Hepática/etiología , Cirrosis Hepática/patología , Hepatopatías/cirugía , Trasplante de Hígado/efectos adversos , Masculino , Persona de Mediana Edad , Pirrolidinas , Recurrencia , Estudios Retrospectivos , Ribavirina/administración & dosificación , Ribavirina/efectos adversos , Ribavirina/uso terapéutico , Simeprevir/administración & dosificación , Simeprevir/efectos adversos , Sofosbuvir/administración & dosificación , Sofosbuvir/efectos adversos , Resultado del Tratamiento , Valina/análogos & derivados
8.
Ann Hepatol ; 14(5): 756-61, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26256907

RESUMEN

Rituximab is a chimeric anti-CD20 monoclonal antibody that is a widely used for the treatment of B cells non-Hodgkin lymphoma. The use of chemotherapy regimens containing rituximab in HCV-positive patients with non-Hodgkin lymphoma has been associated with liver dysfunction, but no cases of cholestatic hepatitis C were described. To our knowledge, this is the first case of cholestatic hepatitis C in an HCV-positive patient with diffuse large B-cell lymphoma describes in the literature. We discuss the pathogenetic mechanisms underlying this severe form of hepatitis and describe its evolution after antiviral treatment.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Colestasis/inducido químicamente , Hepacivirus/efectos de los fármacos , Hepatitis C/inducido químicamente , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Rituximab/efectos adversos , Activación Viral/efectos de los fármacos , Anciano , Antivirales/uso terapéutico , Biopsia , Colestasis/diagnóstico , Colestasis/tratamiento farmacológico , Colestasis/virología , Hepacivirus/patogenicidad , Hepatitis C/diagnóstico , Hepatitis C/tratamiento farmacológico , Hepatitis C/virología , Humanos , Masculino , Factores de Tiempo , Resultado del Tratamiento
10.
Dig Liver Dis ; 46(10): 923-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-24997638

RESUMEN

BACKGROUND: We evaluated efficacy and safety of sofosbuvir and daclatasvir±ribavirin in liver transplant recipients with severe recurrent hepatitis C. METHODS: Patients included in an international compassionate use programme for treatment with sofosbuvir and daclatasvir±ribavirin for 24 weeks were prospectively studied. Serum hepatitis C virus RNA was measured at treatment weeks 4, 12, and 24 and during follow-up at weeks 4, 8, and 12. RESULTS: Twelve patients (3 with fibrosing cholestatic hepatitis and 9 with cirrhosis; median model for end-stage liver disease score 20) received sofosbuvir 400mg/day+daclatasvir 60mg/day, and 6 patients (50%) also received ribavirin 200-800mg/day. Nine patients completed 24 weeks of treatment (75%), and all had undetectable hepatitis C virus RNA at week 24; 3 patients died (25%, liver failure, gastrointestinal bleeding and sepsis); 4 patients experienced severe liver disease-related adverse events. Post-treatment hepatitis C virus RNA was available for 5 patients (week 8, n=2; week 4, n=3) and was undetectable in all cases. Mean Child-Pugh score and albumin level improved significantly at week 24. No changes in immunosuppressant doses were needed. CONCLUSION: All-oral sofosbuvir plus daclatasvir combination shows high virological efficacy in liver transplant recipients and does not interact with immunosuppressants. All adverse events were unrelated to study drugs. These data strongly suggest that this combination must be initiated before decompensation.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Imidazoles/uso terapéutico , Trasplante de Hígado , Uridina Monofosfato/análogos & derivados , Adulto , Anciano , Carbamatos , Ensayos de Uso Compasivo , Esquema de Medicación , Quimioterapia Combinada , Femenino , Estudios de Seguimiento , Hepatitis C Crónica/cirugía , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Pirrolidinas , Recurrencia , Índice de Severidad de la Enfermedad , Sofosbuvir , Resultado del Tratamiento , Uridina Monofosfato/uso terapéutico , Valina/análogos & derivados
11.
Ann Hepatol ; 13(4): 376-85, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24927608

RESUMEN

UNLABELLED: BACKGROUND AND RATIONALE OF THE STUDY: Effect of Long-term nucleoside/nucleotide (NUC) on hepatocellular carcinoma (HCC) incidence in a population of HBeAg-negative genotype D patients has not been adequately studied in real-life cohorts. Our aim was to evaluate the impact of liver fibrosis and other variables on HCC incidence in this population of patients. Of 745 patients with chronic hepatitis B (CHB), 306 HBeAg-negative genotype D were selected and included in this study. All patients received treatment with NUC for at least 18 months. Patients with CHB or compensated cirrhosis were included. Patients with HCC diagnosed before or during the first 18 months of NUC therapy were excluded. RESULTS: HCC was diagnosed in 2 CHB patients (1.0%) and 23 cirrhosis patients (20%) (OR = 24.41, 95% CI 5.40 < OR < 153.2; p < 0.0001). Multivariate analysis revealed that HCC risk was independently associated with age ≥ 60 years (OR = 6.45, 95% CI 1.22 to 34.0; p = 0.02) and liver cirrhosis (OR = 12.1, 95% CI 1.39 to 106.2; p = 0.02), but not with virological response (VR), and previous resistance to NUC, or rescue therapy. Multivariate analysis in cirrhosis patients revealed that only age ≥ 60 years was an independent risk factor associated with HCC (p = 0.003). CONCLUSIONS: Liver cirrhosis and age ≥ 60 years are the stronger risk factors for HCC in genotype D HBeA-gnegative patients. Previous resistance to NUC in patients that achieved a VR after rescue therapy was not a predictive factor regarding HCC. VR does not appear to significantly reduce the overall incidence of HCC when a patient has already progressed to liver cirrhosis.


Asunto(s)
Antivirales/uso terapéutico , Carcinoma Hepatocelular/etiología , Hepatitis B Crónica/tratamiento farmacológico , Neoplasias Hepáticas/etiología , Adenina/análogos & derivados , Adenina/uso terapéutico , Adulto , Anciano , Estudios de Cohortes , ADN Viral/genética , Femenino , Guanina/análogos & derivados , Guanina/uso terapéutico , Antígenos e de la Hepatitis B/inmunología , Virus de la Hepatitis B/genética , Hepatitis B Crónica/complicaciones , Hepatitis B Crónica/inmunología , Humanos , Lamivudine/uso terapéutico , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Organofosfonatos/uso terapéutico , Estudios Retrospectivos , Telbivudina , Tenofovir , Timidina/análogos & derivados , Timidina/uso terapéutico , Carga Viral
12.
BMC Gastroenterol ; 12: 162, 2012 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-23157720

RESUMEN

BACKGROUND: The impact of viral subtype on the rate of sustained virological response (SVR) to antiviral therapy in patients chronically infected with hepatitis C genotype 1 subtype 1a and 1b has not been extensively investigated. The aim of this study is to determine whether the HCV genotype 1 subtypes 1a and 1b respond differently to treatment with PEGylated interferon (PEG-IFN) plus ribavirin. METHODS: For 48 weeks, 388 "naïve"genotype 1 patients were treated weekly with PEG-IFN α-2a or PEG-INF α-2b combined with daily ribavirin (1000-1200 mg/day). The numbers of patients in whom HCV-RNA was undetectable were compared after 4 (rapid virological response, RVR), 12 (early virological response, EVR), and 48 (end treatment virological response, ETR) weeks of treatment as well as 24 weeks after the last treatment (sustained virological response, SVR). RESULTS: The rate of SVR was higher in subtype 1a patients than subtype 1b patients (55% vs. 43%; p < 0.02). Multiple logistic regression analysis showed that infection with genotype 1a (odds ratio(OR) : 1.8; 95% confidence interval (CI): 1.4 to 4.1), age < 50 years (OR:7.0; 95% CI 1.1 to 21.2), alanine aminotransferase level (ALT)<100 IU/ml (OR:2.1; 95% CI: 1.3 to3.5), HCV-RNA < 5.6 log10 IU/ml (OR: 3.2; 95% CI: 2.7 to 6.9) and fibrosis score < S3 (OR: 3.8; 95% CI:3.2 to 7.4), were all independent predictors of SVR. CONCLUSION: Dual antiviral therapy is more effective against HCV subtype 1a than against subtype 1b and this difference is independent of other factors that may favour viral clearance. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT01342003.


Asunto(s)
Antivirales/uso terapéutico , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/uso terapéutico , Polietilenglicoles/uso terapéutico , Adulto , Alanina Transaminasa/sangre , Biopsia , Quimioterapia Combinada , Femenino , Genotipo , Hepatitis C Crónica/patología , Humanos , Interferón alfa-2 , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/patología , Cirrosis Hepática/virología , Masculino , Persona de Mediana Edad , ARN Viral/sangre , Proteínas Recombinantes/uso terapéutico , Ribavirina/uso terapéutico , Resultado del Tratamiento
13.
Ann Hepatol ; 11(6): 951-4, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23109461

RESUMEN

INTRODUCTION: Porphyria cutanea tarda (PCT) is the most common type of porphyria. The strong association between PCT and hepatitis C virus (HCV) infection is well established. Although antiviral treatment of chronic hepatitis C may improve PCT in some cases, de novo onset of PCT has been observed in patients under- going peginterferon/ribavirin treatment. We present a rare case of a genotype 3 HCV-positive liver transplant recipient who developed PCT during antiviral treatment and discuss its probable etiopathogenesis. CASE PRESENTATION: A genotype 3 HCV-positive liver transplant recipient, a 42-year-old man, was treated with peginterferon alfa-2a (180 µg/week) combined with ribavirin (1,200 mg/day) for recurrence of HCV infection after liver transplantation. He presented with hyperferritinemia but tested negative for genetic hemochromatosis (C282Y and H63D mutations). During antiviral therapy, he developed skin lesions on his hands characterized by vesicles and erosions consistent with PCT. PCT was confirmed by skin biopsy and elevated urinary uroporphyrin levels (1,469 mg/24 h). He was treated with chloroquine (200 mg) twice weekly, resulting in gradual regression of the skin lesions. Antiviral treatment was stopped after 48 weeks, and the patient achieved a sustained virological response. In conclusion, we report an extremely rare case of PCT in a genotype 3 HCV-positive liver transplant patient treated with antiviral therapy. We believe that the combination of HCV genotype 3 infection; hemolysis due to ribavirin treatment; and increased plasma levels of cytokines, such as IL-6 and TNFα, could have altered the patient's iron metabolism and thus caused PCT.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Interferón-alfa/uso terapéutico , Fallo Hepático/cirugía , Trasplante de Hígado/efectos adversos , Polietilenglicoles/uso terapéutico , Porfiria Cutánea Tardía/etiología , Ribavirina/uso terapéutico , Adulto , Antivirales/efectos adversos , Biopsia , Cloroquina/uso terapéutico , Quimioterapia Combinada , Genotipo , Hemólisis/efectos de los fármacos , Hepacivirus/genética , Hepatitis C Crónica/complicaciones , Hepatitis C Crónica/diagnóstico , Humanos , Trastornos del Metabolismo del Hierro/etiología , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/virología , Fallo Hepático/diagnóstico , Fallo Hepático/virología , Masculino , Porfiria Cutánea Tardía/diagnóstico , Porfiria Cutánea Tardía/tratamiento farmacológico , Proteínas Recombinantes/uso terapéutico , Recurrencia , Ribavirina/efectos adversos , Resultado del Tratamiento
14.
World J Gastrointest Pharmacol Ther ; 3(2): 21-8, 2012 Apr 06.
Artículo en Inglés | MEDLINE | ID: mdl-22577616

RESUMEN

Rituximab has provided a revolutionary contribution to the treatment of B-cell non-Hodgkin's lymphomas (NHL). A high prevalence of hepatitis C virus (HCV) infection has been described in B-cell NHL patients. Cases of liver dysfunction in HCV-positive patients have been reported with Rituximab-containing regimens. In this paper we review the recent data regarding the effects of Rituximab in NHL patients with HCV infection. We also added a section devoted to improving communication between oncohaematologists and hepatologists. Furthermore, we propose a common methodological ground to study hepatic toxicity emerging during chemotherapy.

16.
World J Hepatol ; 3(11): 278-84, 2011 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-22125661

RESUMEN

AIM: To evaluate if indolent B cell-non Hodgkin's lymphoma (B-NHL) and diffuse large B-cell lymphoma (DLBCL) in hepatitis C virus (HCV) positive patients could have different biological and clinical characteristics requiring different management strategies. METHODS: A group of 24 HCV related B-NHL patients (11 indolent, 13 DLBCL) in whom the biological and clinical characteristics were described and confronted. Patients with DLBCL were managed with the standard of care of treatment. Patients with indolent HCV-related B-NHL were managed with antiviral treatment pegylated interferon plus ribavirin and their course observed. The outcomes of the different approaches were compared. RESULTS: Patients with DLBCL had a shorter duration of HCV infection and a higher prevalence of HCV genotype 1 compared to patients with indolent B-NHL in which HCV genotype 2 was the more frequent genotype. Five of the 9 patients with indolent HCV-related B-NHL treated with only antiviral therapy, achieved a complete response of their onco-haematological disease (55%). Seven of the 13 DLBCL patients treated with immunochemotheraphy obtained a complete response (54%). CONCLUSION: HCV genotypes and duration of HCV infection differed between B-NHL subtypes. Indolent lymphomas can be managed with antiviral treatment, while DLBCL is not affected by the HCV infection.

18.
Angiology ; 61(8): 802-6, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20498147

RESUMEN

Portopulmonary hypertension (PPHTN) is a rare complication in patients with portal hypertension. A role of endothelin 1 (ET-1) and other cytokines was demonstrated in primary pulmonary hypertension but not in PPHTN. We evaluated the possible role of ET-1, interleukin 6 (IL-6), interleukin 1ß (IL-1ß), and tumor necrosis factor alpha (TNF-α) in the pathogenesis of PPHTN. Plasmatic concentrations of ET-1, IL-6, IL-1ß, and TNF-α were measured in patients with pulmonary systolic arterial pressure (PAPs) >30 mm Hg and in patients with cirrhosis. In all, Six out of 11 patients with PAPs >30 mm Hg had PPHTN on right heart catheterization. The remaining 10 patients had an hyperdynamic circulation (HC). In PPHTN patients, ET-1 and IL-6 were significantly higher compared with HC and patients with cirrhosis. Endothelin 1 and IL-6 could be implicated in the pathogenesis of PPHTN. On the basis of these results, ET-1 receptor antagonists or anti-IL-6 could have a rationale in the treatment of PPHTN.


Asunto(s)
Citocinas/sangre , Hipertensión Portal/sangre , Hipertensión Pulmonar/sangre , Cirrosis Hepática/cirugía , Trasplante de Hígado , Cateterismo Cardíaco , Ecocardiografía Doppler en Color , Endotelina-1/sangre , Humanos , Hipertensión Portal/complicaciones , Hipertensión Portal/diagnóstico por imagen , Hipertensión Pulmonar/complicaciones , Hipertensión Pulmonar/diagnóstico , Hipertensión Pulmonar/fisiopatología , Interleucina-1beta/sangre , Interleucina-6/sangre , Cirrosis Hepática/sangre , Persona de Mediana Edad , Factor de Necrosis Tumoral alfa/sangre
19.
BMC Gastroenterol ; 10: 21, 2010 Feb 19.
Artículo en Inglés | MEDLINE | ID: mdl-20170514

RESUMEN

BACKGROUND: In patients with chronic hepatitis C virus (HCV) genotype 2 or 3, 24 weeks' treatment with pegylated interferon alfa (PEG-IFN-alpha) and ribavirin induces a sustained virological response (SVR) in almost 80% of cases. Evidence suggests that a similar response rate may be obtained with shorter treatment periods, especially in patients with a rapid virological response (RVR). The aim of this study was to compare the efficacy of 12 or 24 weeks of treatment in patients with chronic HCV genotype 2 or 3 and to identify patients suitable for 12 weeks treatment. METHODS: Two hundred and ten patients received PEG-IFN-alpha-2a (180 ug/week) and ribavirin (800-1200 mg/day) for 4 weeks. Patients with a RVR (HCV RNA not detectable) were randomized (1:1) to either 12 (group A1) or 24 (group A2) weeks of combination therapy. Patients without a RVR continued with 24-weeks' combination therapy (group B). HCV RNA was monitored at weeks 4, 8, 12, and 24, and at week 24 post-treatment. RESULTS: At study end, end of treatment response (ETR) was observed in 62 (86%) patients of group A1 and in 55 (77%) patients of group A2 (p < 0.05) Relapse rate was 3% each in groups A1 and A2, and 6% in group B. Among patients with a HCVRNA test 24 weeks after the end of treatment, SVR was observed in 60 (83%) of group A1 patients and in 53 (75%) of group A2 patients. Rapid virological response, low baseline HCV RNA levels, elevated alanine aminotransferase levels and low fibrosis score, were the strongest covariates associated with SVR, independent of HCV genotype. No baseline characteristic was associated with relapse. CONCLUSION: In HCV patients with genotype 2 or 3, 12-week combination therapy is as efficacious as 24-week therapy and several independent covariates were predictive of SVR. TRIAL REGISTRATION: Trial number ISRCTN29259563.


Asunto(s)
Antivirales/administración & dosificación , Hepacivirus/genética , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/virología , Interferón-alfa/administración & dosificación , Polietilenglicoles/administración & dosificación , Ribavirina/administración & dosificación , Adulto , Anciano , Esquema de Medicación , Quimioterapia Combinada , Femenino , Genotipo , Humanos , Interferón alfa-2 , Modelos Logísticos , Masculino , Persona de Mediana Edad , Proteínas Recombinantes , Recurrencia , Resultado del Tratamiento , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...