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1.
N Engl J Med ; 2024 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-38847460

RESUMEN

BACKGROUND: Dual agonism of glucagon receptor and glucagon-like peptide-1 (GLP-1) receptor may be more effective than GLP-1 receptor agonism alone for treating metabolic dysfunction-associated steatohepatitis (MASH). The efficacy and safety of survodutide (a dual agonist of glucagon receptor and GLP-1 receptor) in persons with MASH and liver fibrosis are unclear. METHODS: In this 48-week, phase 2 trial, we randomly assigned adults with biopsy-confirmed MASH and fibrosis stage F1 through F3 in a 1:1:1:1 ratio to receive once-weekly subcutaneous injections of survodutide at a dose of 2.4, 4.8, or 6.0 mg or placebo. The trial had two phases: a 24-week rapid-dose-escalation phase, followed by a 24-week maintenance phase. The primary end point was histologic improvement (reduction) in MASH with no worsening of fibrosis. Secondary end points included a decrease in liver fat content by at least 30% and biopsy-assessed improvement (reduction) in fibrosis by at least one stage. RESULTS: A total of 293 randomly assigned participants received at least one dose of survodutide or placebo. Improvement in MASH with no worsening of fibrosis occurred in 47% of the participants in the survodutide 2.4-mg group, 62% of those in the 4.8-mg group, and 43% of those in the 6.0-mg group, as compared with 14% of those in the placebo group (P<0.001 for the quadratic dose-response curve as best-fitting model). A decrease in liver fat content by at least 30% occurred in 63% of the participants in the survodutide 2.4-mg group, 67% of those in the 4.8-mg group, 57% of those in the 6.0-mg group, and 14% of those in the placebo group; improvement in fibrosis by at least one stage occurred in 34%, 36%, 34%, and 22%, respectively. Adverse events that were more frequent with survodutide than with placebo included nausea (66% vs. 23%), diarrhea (49% vs. 23%), and vomiting (41% vs. 4%); serious adverse events occurred in 8% with survodutide and 7% with placebo. CONCLUSIONS: Survodutide was superior to placebo with respect to improvement in MASH without worsening of fibrosis, warranting further investigation in phase 3 trials. (Funded by Boehringer Ingelheim; 1404-0043 ClinicalTrials.gov number, NCT04771273; EudraCT number, 2020-002723-11.).

2.
N Engl J Med ; 390(6): 497-509, 2024 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-38324483

RESUMEN

BACKGROUND: Nonalcoholic steatohepatitis (NASH) is a progressive liver disease with no approved treatment. Resmetirom is an oral, liver-directed, thyroid hormone receptor beta-selective agonist in development for the treatment of NASH with liver fibrosis. METHODS: We are conducting an ongoing phase 3 trial involving adults with biopsy-confirmed NASH and a fibrosis stage of F1B, F2, or F3 (stages range from F0 [no fibrosis] to F4 [cirrhosis]). Patients were randomly assigned in a 1:1:1 ratio to receive once-daily resmetirom at a dose of 80 mg or 100 mg or placebo. The two primary end points at week 52 were NASH resolution (including a reduction in the nonalcoholic fatty liver disease [NAFLD] activity score by ≥2 points; scores range from 0 to 8, with higher scores indicating more severe disease) with no worsening of fibrosis, and an improvement (reduction) in fibrosis by at least one stage with no worsening of the NAFLD activity score. RESULTS: Overall, 966 patients formed the primary analysis population (322 in the 80-mg resmetirom group, 323 in the 100-mg resmetirom group, and 321 in the placebo group). NASH resolution with no worsening of fibrosis was achieved in 25.9% of the patients in the 80-mg resmetirom group and 29.9% of those in the 100-mg resmetirom group, as compared with 9.7% of those in the placebo group (P<0.001 for both comparisons with placebo). Fibrosis improvement by at least one stage with no worsening of the NAFLD activity score was achieved in 24.2% of the patients in the 80-mg resmetirom group and 25.9% of those in the 100-mg resmetirom group, as compared with 14.2% of those in the placebo group (P<0.001 for both comparisons with placebo). The change in low-density lipoprotein cholesterol levels from baseline to week 24 was -13.6% in the 80-mg resmetirom group and -16.3% in the 100-mg resmetirom group, as compared with 0.1% in the placebo group (P<0.001 for both comparisons with placebo). Diarrhea and nausea were more frequent with resmetirom than with placebo. The incidence of serious adverse events was similar across trial groups: 10.9% in the 80-mg resmetirom group, 12.7% in the 100-mg resmetirom group, and 11.5% in the placebo group. CONCLUSIONS: Both the 80-mg dose and the 100-mg dose of resmetirom were superior to placebo with respect to NASH resolution and improvement in liver fibrosis by at least one stage. (Funded by Madrigal Pharmaceuticals; MAESTRO-NASH ClinicalTrials.gov number, NCT03900429.).


Asunto(s)
Cirrosis Hepática , Enfermedad del Hígado Graso no Alcohólico , Piridazinas , Uracilo , Adulto , Humanos , Método Doble Ciego , Hígado/diagnóstico por imagen , Hígado/efectos de los fármacos , Hígado/patología , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/etiología , Cirrosis Hepática/patología , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/patología , Piridazinas/uso terapéutico , Resultado del Tratamiento , Uracilo/análogos & derivados , Receptores beta de Hormona Tiroidea/agonistas , Biopsia , Relación Dosis-Respuesta a Droga
3.
J Hepatol ; 2024 Jun 07.
Artículo en Inglés | MEDLINE | ID: mdl-38857788

RESUMEN

BACKGROUND & AIMS: Survodutide is a glucagon/glucagon-like peptide-1 receptor dual agonist in development for treatment of metabolic dysfunction-associated steatohepatitis (MASH). We investigated survodutide in people with cirrhosis. METHODS: This multinational, non-randomized, open-label, phase 1 clinical trial initially evaluated a single subcutaneous (s.c.) dose of survodutide 0.3 mg in people with Child-Pugh class A, B or C cirrhosis and healthy individuals with or without overweight/obesity matched for age, sex, and weight; the primary endpoints were the area under the plasma concentration-time curve from 0 to infinity (AUC0-∞) and maximal plasma concentration (Cmax). Subsequently, people with overweight/obesity with or without cirrhosis and Child-Pugh class A or B received once-weekly s.c. doses escalated from 0.3 mg to 6.0 mg over 24 weeks then maintained for 4 weeks; the primary endpoint was drug-related treatment-emergent adverse events, with MASH/cirrhosis-related endpoints explored. RESULTS: In the single-dose cohorts (n = 41), mean AUC0-∞ and Cmax were similar in those with cirrhosis compared with healthy individuals (90% confidence intervals for adjusted geometric mean ratios spanned 1). Drug-related adverse events occurred in 25.0% of healthy individuals and ≤25.0% of those with cirrhosis after single doses, and 82.4% and 87.5%, respectively, of the multiple-dose cohorts (n = 41) over 28 weeks. Liver fat content, liver stiffness, liver volume, body weight, and other hepatic and metabolic disease markers were generally reduced after 28 weeks of survodutide treatment. CONCLUSIONS: Survodutide is generally tolerable in people with compensated or decompensated cirrhosis, does not require pharmacokinetic-related dose adjustment, and may improve liver-related non-invasive tests, supporting its investigation for MASH-related cirrhosis. Clinical trial number; ClinicalTrials.gov identifier: NCT05296733. IMPACT AND IMPLICATIONS: Survodutide is a glucagon receptor/glucagon-like peptide-1 receptor dual agonist in development for treatment of metabolic dysfunction-associated steatohepatitis (MASH), which causes cirrhosis in ∼20% of cases. This trial delineates the pharmacokinetic and safety profile of survodutide in people with compensated or decompensated cirrhosis, and revealed associated reductions in liver fat content, markers of liver fibrosis and body weight. These findings have potential relevance for people with MASH-including those with decompensated cirrhosis, who are usually excluded from clinical trials of investigational drugs. Based on this study, further investigation of survodutide for MASH-related cirrhosis is warranted.

4.
J Hepatol ; 77(2): 353-364, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35367282

RESUMEN

BACKGROUND & AIMS: We examined the efficacy and safety of seladelpar, a selective peroxisome proliferator-activated receptor-delta agonist, in adults with primary biliary cholangitis (PBC) at risk of disease progression (alkaline phosphatase [ALP] ≥1.67xupper limit of normal [ULN]) who were receiving or intolerant to ursodeoxycholic acid. METHODS: In this 52-week, phase II, dose-ranging, open-label study, patients were randomized (1:1) to seladelpar 5 mg/day (n = 53) or 10 mg/day (n = 55) or assigned to 2 mg/day (n = 11; United Kingdom sites after interim analysis) for 12 weeks. Doses could then be uptitrated to 10 mg/day. The primary efficacy endpoint was ALP change from baseline to Week 8. RESULTS: Mean baseline ALP was 300, 345, and 295 U/L in the 2 mg, 5 mg, and 10 mg cohorts, respectively. Twenty-one percent of patients had cirrhosis, 71% had pruritus. At Week 8, mean ± standard error ALP reductions from baseline were 26 ± 2.8%, 33 ± 2.6%, and 41 ± 1.8% in the 2 mg (n = 11), 5 mg (n = 49), and 10 mg (n = 52) cohorts (all p ≤0.005), respectively. Responses were maintained or improved at Week 52, after dose escalation in 91% and 80% of the 2 mg and 5 mg cohorts, respectively. At Week 52, composite response (ALP <1.67xULN, ≥15% ALP decrease, and normal total bilirubin) rates were 64%, 53%, and 67%, and ALP normalization rates were 9%, 13%, and 33% in the 2 mg, 5 mg, and 10 mg cohorts, respectively. Pruritus visual analog scale score was decreased in the 5 mg and 10 mg cohorts. There were no treatment-related serious adverse events, and 4 patients discontinued due to adverse events. CONCLUSIONS: Seladelpar demonstrated robust, dose-dependent, clinically significant, and durable improvements in biochemical markers of cholestasis and inflammation in patients with PBC at risk of disease progression. Seladelpar appeared safe and well tolerated and was not associated with any increase in pruritus. GOV NUMBER: NCT02955602 CLINICALTRIALSREGISTER. EU NUMBER: 2016-002996-91 LAY SUMMARY: Current treatment options for patients living with primary biliary cholangitis (PBC) are not optimal due to inadequate effectiveness or undesirable side effects. Patients with PBC who took seladelpar, a new treatment being developed for PBC, at increasing doses (2, 5, or 10 mg/day) for 1 year had clinically significant, dose-dependent improvements in key liver tests. Treatment appeared safe and was not associated with any worsening in patient self-reported itch scores.


Asunto(s)
Cirrosis Hepática Biliar , Acetatos , Adulto , Fosfatasa Alcalina , Progresión de la Enfermedad , Humanos , Cirrosis Hepática Biliar/tratamiento farmacológico , Prurito/inducido químicamente , Prurito/etiología , Ácido Ursodesoxicólico/efectos adversos
5.
Aliment Pharmacol Ther ; 59(2): 186-200, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37904314

RESUMEN

BACKGROUND: Seladelpar is a potent and selective peroxisome proliferator-activated receptor-δ agonist that targets multiple cell types involved in primary biliary cholangitis (PBC), leading to anti-cholestatic, anti-inflammatory and anti-pruritic effects. AIMS: To evaluate the long-term safety and efficacy of seladelpar in patients with PBC. METHODS: In an open-label, international, long-term extension study, patients with PBC completing seladelpar lead-in studies continued treatment. Seladelpar was taken orally once daily at doses of 5 or 10 mg with dose adjustment permitted for safety or tolerability. The primary analysis was for safety and the secondary efficacy analysis examined biochemical markers of cholestasis and liver injury. The study was terminated early due to the unexpected histological findings in a concurrent study for non-alcoholic steatohepatitis, which were subsequently found to predate treatment. Safety and efficacy data were analysed through 2 years. RESULTS: There were no serious treatment-related adverse events observed among 106 patients treated with seladelpar for up to 2 years. There were four discontinuations for safety, one possibly related to seladelpar. Among 53 patients who completed 2 years of seladelpar, response rates increased from years 1 to 2 for the composite endpoint (alkaline phosphatase [ALP] <1.67 × ULN, ≥15% decrease in ALP, and total bilirubin ≤ULN) and ALP normalisation from 66% to 79% and from 26% to 42%, respectively. In those with elevated bilirubin at baseline, 43% achieved normalisation at year 2. CONCLUSIONS: Seladelpar was safe, and markedly improved biochemical markers of cholestasis and liver injury in patients with PBC. These effects were maintained or improved throughout the second year. CLINICALTRIALS: gov: NCT03301506; Clinicaltrialsregister.eu: 2017-003910-16.


Asunto(s)
Colestasis , Cirrosis Hepática Biliar , Humanos , Ácido Ursodesoxicólico/efectos adversos , Cirrosis Hepática Biliar/tratamiento farmacológico , Colestasis/tratamiento farmacológico , Colestasis/inducido químicamente , Biomarcadores , Fosfatasa Alcalina , Bilirrubina
6.
J Clin Gastroenterol ; 47(2): 188-92, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23314671

RESUMEN

GOALS: The purpose of this study was to assess the incidence of Clostridium difficile infection in patients who received rifaximin for the treatment of hepatic encephalopathy (HE). METHODS: Medical charts of patients who received rifaximin for the treatment of HE were reviewed. The number of patients who developed diarrhea during treatment with rifaximin and results of latex agglutination assays to detect C. difficile in stool samples were analyzed. RESULTS: A total of 211 patients received rifaximin for HE. Of these, 152 were treated in a university practice and 59 were treated in community practices. The mean dose of rifaximin was 1055 mg/d (range, 600 to 1600 mg/d) for a mean duration of 250 days (range, 180 to 385 d). Eighteen patients developed diarrhea during rifaximin treatment. None of these patients tested positive for C. difficile. CONCLUSIONS: This study demonstrates that treatment of HE with the safe, nonsystemic, gut-selective antibiotic rifaximin was not associated with the development of C. difficile infection.


Asunto(s)
Antiinfecciosos/uso terapéutico , Clostridioides difficile/patogenicidad , Enterocolitis Seudomembranosa/epidemiología , Encefalopatía Hepática/tratamiento farmacológico , Rifamicinas/uso terapéutico , Antiinfecciosos/efectos adversos , Diarrea/epidemiología , Diarrea/microbiología , Enterocolitis Seudomembranosa/microbiología , Heces/microbiología , Femenino , Humanos , Incidencia , Pruebas de Fijación de Látex , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Rifamicinas/efectos adversos , Rifaximina , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento , Estados Unidos/epidemiología
7.
HPB (Oxford) ; 15(7): 504-10, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23750492

RESUMEN

BACKGROUND: Obesity has been associated with poor oncologic outcomes following pancreatoduodenectomy for pancreatic cancer. However, there is a paucity of evidence on the impact of obesity on postoperative complications, oncologic outcome and survival in patients with hepatocellular carcinoma (HCC) undergoing orthotopic liver transplantation (OLT). METHODS: From a database of over 1000 patients who underwent OLT during 1996-2008, 159 patients with a diagnosis of HCC were identified. Demographic data, body mass index (BMI), perioperative parameters, recurrence and survival were obtained. Complications were grouped according to Clavien-Dindo grading (Grades I-V). RESULTS: There were increased incidences of life-threatening complications in overweight (58%) and obese (70%) patients compared with the non-obese patient group (41%) (P < 0.05). Furthermore, the incidence of recurrence of HCC was doubled in the presence of overweight (15%) and obesity (15%) compared with non-obesity (7%) (P < 0.05). Time to recurrence also decreased significantly. Differences in mean ± standard deviation survival in the overweight (45 ± 3 months) and obese (41 ± 4 months) groups compared with the non-obese group (58 ± 6 months) did not reach statistical significance. CONCLUSIONS: These findings indicate that BMI is an important surrogate marker for obesity and portends an increased risk for complications and a poorer oncologic outcome following OLT for HCC.


Asunto(s)
Carcinoma Hepatocelular/cirugía , Neoplasias Hepáticas/cirugía , Trasplante de Hígado/efectos adversos , Recurrencia Local de Neoplasia/etiología , Obesidad/complicaciones , Análisis de Varianza , Índice de Masa Corporal , Carcinoma Hepatocelular/complicaciones , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/patología , Femenino , Humanos , Incidencia , Estimación de Kaplan-Meier , Tiempo de Internación , Neoplasias Hepáticas/complicaciones , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Trasplante de Hígado/mortalidad , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/patología , Obesidad/diagnóstico , Obesidad/mortalidad , Complicaciones Posoperatorias/mortalidad , Complicaciones Posoperatorias/terapia , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
8.
Nat Med ; 29(11): 2919-2928, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37845512

RESUMEN

Nonalcoholic steatohepatitis (NASH) is a progressive liver disease with no approved treatment. MAESTRO-NAFLD-1 was a 52-week randomized, double-blind, placebo-controlled phase 3 trial evaluating the safety of resmetirom in adults with nonalcoholic fatty liver disease and presumed NASH. Patients were randomized to three double-blind arms (100 mg resmetirom (n = 325), 80 mg resmetirom (n = 327) or placebo (n = 320)) or open-label 100 mg resmetirom (n = 171). The primary end point was incidence of treatment-emergent adverse events (TEAEs) over 52 weeks and key secondary end points were LDL-C, apoB, triglycerides (over 24 weeks), hepatic fat (over 16 and 52 weeks) and liver stiffness (over 52 weeks). Resmetirom was safe and well tolerated. TEAEs occurred in 86.5% (open-label 100 mg resmetirom), 86.1% (100 mg resmetirom), 88.4% (80 mg resmetirom) and 81.8% (placebo) of patients. TEAEs in excess of placebo included diarrhea and nausea at the initiation of treatment. Key secondary end points included least square means difference from placebo at 80 mg, 100 mg resmetirom: LDL-C (-11.1%, -12.6%), apoB (-15.6%, -18.0%), triglycerides (-15.4%, -20.4%), 16-week hepatic fat (-34.9%, -38.6%), (P < 0.0001) and liver stiffness (-1.02, -1.70) and 52-week hepatic fat (-28.8, -33.9). These findings demonstrate resmetirom was safe and well tolerated in adults with presumed NASH, supporting a role for further clinical development. (ClinicalTrials.gov identifier NCT04197479 ).


Asunto(s)
Enfermedad del Hígado Graso no Alcohólico , Adulto , Humanos , Apolipoproteínas B , LDL-Colesterol , Método Doble Ciego , Hígado , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Resultado del Tratamiento , Triglicéridos
9.
J Clin Gastroenterol ; 46(2): 168-71, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-22011586

RESUMEN

GOALS: To evaluate the durability of the response to rifaximin for treatment of hepatic encephalopathy (HE). BACKGROUND: The nonsystemic antibiotic rifaximin has been approved for maintenance of HE remission, and several studies have indicated the efficacy of rifaximin for acute HE; however, the duration of therapeutic response for >6 months remains unknown. STUDY: Medical records of patients with cirrhosis who received rifaximin maintenance therapy for HE between January 2004 and May 2009 were reviewed. Model for end-stage liver disease (MELD) scores were obtained every 3 months during therapy. RESULTS: Of 203 patients with HE (Conn score ≥2), 149 received rifaximin monotherapy (400 to 1600 mg/d) and 54 received rifaximin (600 to 1200 mg/d) and lactulose (90 mL/d) dual therapy. Maintenance of HE remission for 1 year occurred in 81% and 67% of patients who received rifaximin monotherapy and rifaximin and lactulose dual therapy, respectively. Patient populations with a baseline mean MELD score ≤20 had few overt HE events, suggesting increased response to rifaximin in these patients. CONCLUSIONS: Rifaximin is effective for the management of HE in patients with cirrhosis, particularly in populations with MELD scores ≤20. Additional studies are needed to investigate the potential association between MELD scores and the efficacy of HE treatments.


Asunto(s)
Antiinfecciosos/uso terapéutico , Enfermedad Hepática en Estado Terminal/tratamiento farmacológico , Fármacos Gastrointestinales/uso terapéutico , Encefalopatía Hepática/tratamiento farmacológico , Lactulosa/uso terapéutico , Cirrosis Hepática/tratamiento farmacológico , Rifamicinas/uso terapéutico , Adulto , Anciano , Antiinfecciosos/efectos adversos , Quimioterapia Combinada , Enfermedad Hepática en Estado Terminal/fisiopatología , Femenino , Humanos , Cirrosis Hepática/complicaciones , Masculino , Persona de Mediana Edad , Rifamicinas/efectos adversos , Rifaximina , Índice de Severidad de la Enfermedad , Factores de Tiempo
10.
Nat Commun ; 12(1): 5503, 2021 09 17.
Artículo en Inglés | MEDLINE | ID: mdl-34535644

RESUMEN

Non-alcoholic steatohepatitis is frequently associated with diabetes and may cause progressive liver disease. Current treatment options are limited. Here we report on a prospective, randomised, double-blind, placebo-controlled trial of two doses of HTD1801 (berberine ursodeoxycholate, an ionic salt of berberine and ursodeoxycholic acid), versus placebo that was conducted in 100 subjects with fatty liver disease and diabetes (NCT03656744). Treatment was for 18 weeks with a primary endpoint of reduction in liver fat content measured by magnetic resonance imaging proton density fat fraction. Key secondary endpoints included improvement in glycemic control, liver-associated enzymes and safety. The pre-specified primary endpoint was met. Thus, subjects receiving 1000 mg twice a day of berberine ursodeoxycholate had significantly greater reduction in liver fat content than in placebo recipients (mean absolute decrease -4.8% vs. -2.0% (p = 0.011). Compared to placebo, subjects receiving this dose also experienced significant improvement in glycemic control as well as reductions in liver-associated enzymes and significant weight loss. Diarrhea and abdominal discomfort were the most frequently reported adverse events. We conclude that berberine ursodeoxycholate has a broad spectrum of metabolic activity in patients with presumed NASH and diabetes. It is relatively well tolerated and merits further development as a treatment for NASH with diabetes.


Asunto(s)
Berberina/uso terapéutico , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Enfermedad del Hígado Graso no Alcohólico/tratamiento farmacológico , Prueba de Estudio Conceptual , Adiposidad/efectos de los fármacos , Adulto , Anciano , Berberina/efectos adversos , Berberina/farmacología , Femenino , Hemoglobina Glucada/análisis , Humanos , Hígado/efectos de los fármacos , Hígado/metabolismo , Hígado/patología , Masculino , Persona de Mediana Edad
11.
Dig Dis Sci ; 55(4): 883-9, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19390965

RESUMEN

In the USA, end-stage liver disease (ESLD) is a major cause of morbidity and mortality among ethnic minorities. Ethnic populations vary with respect to chronic liver disease prevalence, access to transplantation, and therapeutic outcomes post liver transplantation. These ethnic differences present unique challenges to healthcare professionals involved in the care of patients with chronic liver disease prior and post transplantation. This review will discuss the variations and challenges of liver transplantation in the ethnic minority population.


Asunto(s)
Negro o Afroamericano/estadística & datos numéricos , Hispánicos o Latinos/estadística & datos numéricos , Fallo Hepático/etnología , Trasplante de Hígado/etnología , Población Blanca/estadística & datos numéricos , Carcinoma Hepatocelular/etnología , Carcinoma Hepatocelular/mortalidad , Carcinoma Hepatocelular/cirugía , Estudios Transversales , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Disparidades en Atención de Salud/estadística & datos numéricos , Hepatitis C Crónica/etnología , Hepatitis C Crónica/mortalidad , Hepatitis C Crónica/cirugía , Humanos , Cobertura del Seguro/estadística & datos numéricos , Estimación de Kaplan-Meier , Fallo Hepático/mortalidad , Fallo Hepático/cirugía , Neoplasias Hepáticas/etnología , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/cirugía , Trasplante de Hígado/estadística & datos numéricos , Garantía de la Calidad de Atención de Salud , Derivación y Consulta/estadística & datos numéricos , Obtención de Tejidos y Órganos/estadística & datos numéricos , Estados Unidos , Revisión de Utilización de Recursos/estadística & datos numéricos
12.
Dig Dis Sci ; 54(8): 1794-7, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19051029

RESUMEN

Factors contributing to inequitable access to liver transplantation include socioeconomic status, geographic location, and delayed referral. The aim of this study is to identify the factors associated with a high MELD at the time of listing. Using the UNOS database, we identified all adults listed from 2002 to 2006. Data collected included demographics, insurance payor (private and government, i.e., Medicaid and non-Medicaid), diagnosis, and MELD score categorized as low (<20) and high (>or=20). The results obtained show that a high MELD was associated with age, ethnicity, and insurance (P < 0.001). By multivariate analysis, insurance (OR = 1.21, 95% CI = 1.13-1.30, P < 0.001) and ethnicity (OR = 1.55, 95% CI = 1.28-1.88, P < 0.001) were independently associated with high MELD. In conclusion, ethnic minorities and liver transplant candidates with Medicaid are more likely to have a high MELD score at initial listing. The above results suggest that the type of insurance and ethnicity are independently associated with a high MELD (i.e., sicker patients).


Asunto(s)
Accesibilidad a los Servicios de Salud/tendencias , Seguro de Salud/economía , Hepatopatías/etnología , Hepatopatías/cirugía , Trasplante de Hígado/economía , Trasplante de Hígado/etnología , Índice de Severidad de la Enfermedad , Adolescente , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Femenino , Geografía , Humanos , Hepatopatías/clasificación , Hepatopatías/economía , Masculino , Medicaid/economía , Persona de Mediana Edad , Modelos Estadísticos , Análisis Multivariante , Grupos Raciales , Derivación y Consulta , Estudios Retrospectivos , Factores Socioeconómicos , Estados Unidos , Adulto Joven
13.
Transplantation ; 85(2): 166-70, 2008 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-18212619

RESUMEN

BACKGROUND: Recent reports have documented ethnic disparity in access to health care. This disparity appears to exist in organ transplantation and the contributing factors include lack of insurance as well as poor socioeconomic status. The role of geographic location and ethnic composition on accessibility to liver transplantation (LT) is unclear. Therefore, the aim of this study was to determine ethnic transplantation trends based on United Network for Organ Sharing (UNOS) regions. METHODS: Using the UNOS database, we identified all adults (> or =18 years) that received LT between 2000 and 2005. We excluded multiorgan transplants and living donor transplantation. The data collected included ethnicity, transplantation rate, and UNOS region. Data were analyzed using the chi test. RESULTS: A total of 30,311 patients received a LT during the study period. Of these, 22,673 (74.8%) were white, 3621 (12%) were Hispanic, 2490 (8.2%) were African Americans, and the rest of other ethnic groups (5%). Liver transplantation based on ethnicity was region specific, with the lowest for African Americans in region 6 (2.7%), for Hispanics in region 11 (2.2%), and for whites in region 5 (57.6%), respectively. There was no consistent correlation between the ethnicity of the recipients and the ethnic composition of the geographic location (region). CONCLUSION: Significant variations in access to liver transplantation for ethnic minorities exist across geographic lines. Understanding the interaction between ethnic minorities with end-stage liver disease in a geographic location and a transplant center will be invaluable as a first step in identifying the key nonmedical factors that play a role in this disparity.


Asunto(s)
Etnicidad/estadística & datos numéricos , Accesibilidad a los Servicios de Salud/estadística & datos numéricos , Trasplante de Hígado/estadística & datos numéricos , Grupos Minoritarios/estadística & datos numéricos , Población Negra/estadística & datos numéricos , Geografía , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Estados Unidos , Población Blanca/estadística & datos numéricos
14.
Transplantation ; 86(1): 104-7, 2008 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-18622285

RESUMEN

BACKGROUND: Liver transplantation (LT) provides long-term survival for adults with end-stage liver disease. As a result of improved survival and an aging United States population the demand for LT in older patients is expected to increase. The aim of this study was to describe the transplantation trends in the older recipient (older than 65 years). METHODS: Using the United Network for Organ Sharing database, we identified LT recipients between 1990 and 2006. We used Kaplan-Meier method to calculate overall survival (1, 3, 5 and 10 years) and Cox regression for predictors of survival. RESULTS: During the study period 5630 (7.6%) LT recipients were older than 65 years. There were 4256 (79.4%) whites, Hispanic (10.3%), African Americans (AA) (3.6%), and rest (6.7%). There was an increase in LT for older than 65 years from 4.1% in 1990 to 10.2% in 2006 (P=0.002) and a regional variation (P<0.001). The 10-year patient and graft survival was 60% and 57% for less than 65 years versus 42% and 40% for more than 65 years (P<0.0001). With age stratification (65-75 years vs. >75 years), there was no difference in survival but when adjusted for race there was a significant difference in graft survival with a 10 year (white 40%, Hispanic 44%, and AA 19%) (P=0.04). CONCLUSION: The demand for LT in recipients older than 65 years is increasing. Although their survival is lower in comparison with recipients less than 65 years, there seems to be no difference in unadjusted survival with age stratification above 65 years. Among ethnic minorities, there was a disproportionately lower percentage of African Americans LT and a decreased survival.


Asunto(s)
Negro o Afroamericano , Supervivencia de Injerto , Disparidades en Atención de Salud , Hispánicos o Latinos , Trasplante de Hígado/tendencias , Características de la Residencia , Población Blanca , Negro o Afroamericano/estadística & datos numéricos , Distribución por Edad , Factores de Edad , Anciano , Anciano de 80 o más Años , Femenino , Disparidades en Atención de Salud/estadística & datos numéricos , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Estimación de Kaplan-Meier , Trasplante de Hígado/etnología , Trasplante de Hígado/mortalidad , Masculino , Selección de Paciente , Modelos de Riesgos Proporcionales , Sistema de Registros , Características de la Residencia/estadística & datos numéricos , Medición de Riesgo , Factores de Tiempo , Obtención de Tejidos y Órganos , Resultado del Tratamiento , Estados Unidos/epidemiología , Población Blanca/estadística & datos numéricos
15.
Transplantation ; 84(7): 932-3, 2007 Oct 15.
Artículo en Inglés | MEDLINE | ID: mdl-17984849

RESUMEN

Hepatitis C virus (HCV) is the most frequent indication for adult liver transplantation in Europe and United States. Posttransplantation HCV recurrence is universal and previous studies have reported a reduced survival in comparison to non-HCV recipients. We report the findings of a comparative survival analysis of adult recipients (n=12,434) with HCV from two eras using the United Network for Organ Sharing database. Cox regression modeling was used to compare both eras (A: 1994-1998 and B: 1999-2003). The 1-, 3-, and 5-year adjusted graft survivals for era A (n=5,215) and era B (n=7,519) were 80%, 69%, and 62% versus 84%, 72%, and 64%, respectively (P<0.001), whereas the 1-, 3-, and 5-year adjusted patient survivals were 86%, 77%, and 70% for era A versus 87%, 78%, and 70% for era B, respectively (P=0.79). This comparative analysis of posttransplant outcomes for HCV recipients suggests an improvement in graft survival in the latter years.


Asunto(s)
Hepacivirus/metabolismo , Hepatitis C/virología , Hepatopatías/terapia , Hepatopatías/virología , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/métodos , Bases de Datos Factuales , Supervivencia de Injerto , Hepatitis C/terapia , Humanos , Inmunosupresores/uso terapéutico , Modelos de Riesgos Proporcionales , Factores de Tiempo , Obtención de Tejidos y Órganos , Resultado del Tratamiento
16.
Clin Infect Dis ; 41 Suppl 1: S50-5, 2005 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-16265614

RESUMEN

In at-risk populations, shared routes of transmission lead to high rates of concordance between infection with human immunodeficiency virus (HIV) type 1 and hepatitis C virus (HCV). In the era of highly active antiretroviral therapy (HAART), end-stage liver disease (ESLD) has emerged as a leading cause of mortality in coinfected patients. HAART-related toxicities have been implicated, especially when given to patients with viral hepatitis. Rates of response to treatment for HCV infection in coinfected patients continue to lag behind those in monoinfected patients, even with the advent of pegylated interferons. Liver transplantation has been approached with caution in this population because of concern about the sequelae of immunosuppression and HAART-related hepatotoxicity, and results have been conflicting. Clinical and serological markers of ESLD in coinfected patients, management of cirrhosis, and the appropriateness of transplantation are discussed.


Asunto(s)
Infecciones por VIH/complicaciones , Hepatitis C/complicaciones , Cirrosis Hepática/complicaciones , Fallo Hepático/mortalidad , Terapia Antirretroviral Altamente Activa/efectos adversos , Manejo de la Enfermedad , Progresión de la Enfermedad , Infecciones por VIH/tratamiento farmacológico , Humanos , Fallo Renal Crónico , Cirrosis Hepática/diagnóstico , Cirrosis Hepática/terapia , Fallo Hepático/etiología , Trasplante de Hígado/ética , Trasplante de Hígado/estadística & datos numéricos , Resultado del Tratamiento
17.
Transplantation ; 78(2): 264-8, 2004 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-15280688

RESUMEN

BACKGROUND: Sirolimus (SRL) is a powerful immunosuppressant used primarily in calcineurin inhibitors (CNI)-related nephrotoxicity. However, reports of drug-related side effects are increasing. The aim of our report is to review the frequency and timing of these complications within our transplant patient population. METHODS: We retrospectively reviewed the medical records of liver-transplanted patients treated with sirolimus between November 1998 and April 2002. The data collected included SRL serum levels, frequency of reported and documented SRL-related side effects, and survival outcomes. Statistical evaluation included Pearson chi-square and the Fisher's exact tests. RESULTS: Overall, 205 patients were identified, with 30 patients removed from the analysis for different reasons. Of the remaining 175 patients, 91 (52%) patients developed a complication other than an increase in serum triglycerides and/or cholesterol. The most frequent complications were: bilateral lower extremity edema (57.1%), dermatitis (25.3%), oral ulcers (24.2%), joint pain (23.0%), pleural effusion (16.5%) and increase in abdominal girth (9.9%). Other complications included: generalized edema (5.5%), pericardial effusion (5.5%), facial edema (2.2%), and upper extremity edema (1.3%). In addition, we reported two cases of hepatic artery thrombosis, one case of wound dehiscence with evisceration that required surgical repair, and one case of skin cancer. Interestingly, we found that a previous history of myocardial ischemia correlates with the development of SRL side effects. CONCLUSIONS: SRL is a powerful immunosuppressant but not devoid of side effects. These results have elevated our level of suspicion when instituting SRL and may help with early recognition and prevention of drug related complications.


Asunto(s)
Inmunosupresores/efectos adversos , Trasplante de Hígado/efectos adversos , Trasplante de Hígado/inmunología , Complicaciones Posoperatorias/inmunología , Sirolimus/efectos adversos , Edema/inducido químicamente , Humanos , Úlceras Bucales/inducido químicamente , Selección de Paciente , Complicaciones Posoperatorias/inducido químicamente , Estudios Retrospectivos
18.
Transplantation ; 78(9): 1303-7, 2004 Nov 15.
Artículo en Inglés | MEDLINE | ID: mdl-15548967

RESUMEN

INTRODUCTION: The management issues of transplant patients with hepatitis C virus (HCV) are complex, and interferon therapy is often ineffective. We present data from a retrospective review in liver-transplant recipients suffering from HCV recurrence that were treated with pegylated alpha-2b interferon and ribavirin. METHODS: A retrospective review of transplant recipients that received combination pegylated alpha-2b interferon (1.5 mcg/kg/wk) and ribavirin (400-600 mg/day) therapy intended for at least 48 weeks. Complications were recorded and included neutropenia (<750 cells), anemia (hemoglobin <8 g) with and without treatment consisting of blood transfusions, erythropoietin, or dose reduction of ribavirin, and depression. The diagnosis of HCV recurrence was determined by an increase in liver chemistries, histopathologic findings with inflammation along with viral recurrence using the COBAS AMPLICOR HCV test. RESULTS: Fifty-seven liver-transplant recipients were included, 29 naive (group 1) to therapy and 28 nonresponders (group 2) to at least 6 months of interferon and ribavirin therapy. Eight (27.6%) patients in group 1 and six (21%) patients in group 2 were HCV nondetectable at the end of 48 weeks of therapy. Ribavirin therapy was decreased in 13 of 29 (45%) for group 1 and 11 of 28 (39%) in group 2. Therapeutic interventions were 4 of 57 (7%) blood transfusions, 23 of 57 (40%) erythropoietin, and 17 of 57 (30%) filgrastim. CONCLUSION: Combination pegylated interferon with ribavirin appears to effective therapy in HCV recurrence and in HCV nonresponsive to interferon and ribavirin. This data reveals the difficulty and caution that must be taken when treating HCV-R liver-transplant recipients with combination pegylated alpha-2b interferon and ribavirin therapy.


Asunto(s)
Hepatitis C/tratamiento farmacológico , Interferón-alfa/administración & dosificación , Trasplante de Hígado/efectos adversos , Ribavirina/administración & dosificación , Adulto , Anciano , Quimioterapia Combinada , Femenino , Humanos , Interferón alfa-2 , Masculino , Persona de Mediana Edad , Polietilenglicoles , Proteínas Recombinantes , Recurrencia , Estudios Retrospectivos
19.
Clinicoecon Outcomes Res ; 5: 143-52, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-23626470

RESUMEN

Cirrhosis is a chronic liver disease stage that encompasses a variety of etiologies resulting in liver damage. This damage may induce secondary complications such as portal hypertension, esophageal variceal bleeding, spontaneous bacterial peritonitis, and hepatic encephalopathy. Screening for and management of these complications incurs substantial health care costs; thus, determining the most economical and beneficial treatment strategies is essential. This article reviews the economic impact of a variety of prophylactic and treatment regimens employed for cirrhosis-related complications. Prophylactic use of ß-adrenergic blockers for portal hypertension and variceal bleeding appears to be cost-effective, but the most economical regimen for treatment of initial bleeding is unclear given that cost comparisons of pharmacologic and surgical regimens are lacking. In contrast, prophylaxis for spontaneous bacterial peritonitis cannot be recommended. Standard therapy for spontaneous bacterial peritonitis includes antibiotics, and the overall economic impact of these medications depends largely on their direct cost. However, the potential development of bacterial antibiotic resistance and resulting clinical failure should also be considered. Nonabsorbable disaccharides are standard therapies for hepatic encephalopathy; however, given their questionable efficacy, the nonsystemic antibiotic rifaximin may be a more cost-effective, long-term treatment for hepatic encephalopathy, despite its increased direct cost, because of its demonstrated efficacy and prevention of hospitalization. Further studies evaluating the cost burden of cirrhosis and cirrhosis-related complications, including screening costs, the cost of treatment and maintenance therapy, conveyance to liver transplantation, liver transplantation success, and health-related quality of life after transplantation, are essential for evaluation of the economic burden of hepatic encephalopathy and all cirrhosis-related complications.

20.
Transplantation ; 96(10): 860-2, 2013 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-24247899

RESUMEN

Nonalcoholic steatohepatitis (NASH) is increasingly recognized as the most common chronic liver disease worldwide. The aim of this study is to investigate the transplantation trends of liver transplant (LT) recipients with NASH. Using the United Network for Organ Sharing database, we found a steady increase in LT rate especially in those more than 65 years old. We identified differences across ethnic groups and United Network for Organ Sharing regions. This study highlights the impact of the rising prevalence of NASH on the demand for LT and provides invaluable information to healthcare policymakers and the transplant community about the target groups and geographic location for focused and early intervention.


Asunto(s)
Etnicidad , Hígado Graso/cirugía , Trasplante de Hígado , Adulto , Distribución por Edad , Anciano , Hígado Graso/diagnóstico , Hígado Graso/etnología , Femenino , Supervivencia de Injerto , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico , Estudios Retrospectivos , Distribución por Sexo , Estados Unidos/epidemiología
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