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1.
Cell ; 160(3): 393-406, 2015 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-25601461

RESUMO

Colorectal cancer primarily metastasizes to the liver and globally kills over 600,000 people annually. By functionally screening 661 microRNAs (miRNAs) in parallel during liver colonization, we have identified miR-551a and miR-483 as robust endogenous suppressors of liver colonization and metastasis. These miRNAs convergently target creatine kinase, brain-type (CKB), which phosphorylates the metabolite creatine, to generate phosphocreatine. CKB is released into the extracellular space by metastatic cells encountering hepatic hypoxia and catalyzes production of phosphocreatine, which is imported through the SLC6A8 transporter and used to generate ATP­fueling metastatic survival. Combinatorial therapeutic viral delivery of miR-551a and miR-483-5p through single-dose adeno-associated viral (AAV) delivery significantly suppressed colon cancer metastasis, as did CKB inhibition with a small-molecule inhibitor. Importantly, human liver metastases express higher CKB and SLC6A8 levels and reduced miR-551a/miR-483 levels relative to primary tumors. We identify the extracellular space as an important compartment for malignant energetic catalysis and therapeutic targeting.


Assuntos
Neoplasias Colorretais/metabolismo , Neoplasias Hepáticas/secundário , MicroRNAs/metabolismo , Metástase Neoplásica/genética , Animais , Linhagem Celular Tumoral , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Creatina Quinase Forma BB/metabolismo , Metabolismo Energético , Matriz Extracelular , Regulação Neoplásica da Expressão Gênica , Humanos , Neoplasias Hepáticas/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos NOD , Camundongos SCID , Metástase Neoplásica/patologia , Proteínas do Tecido Nervoso/metabolismo , Proteínas da Membrana Plasmática de Transporte de Neurotransmissores/metabolismo
2.
Hepatology ; 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38865589

RESUMO

BACKGROUND AIMS: While avoidance of long-term corticosteroids is a common objective in the management of autoimmune hepatitis (AIH), prolonged immunosuppression is usually required to prevent disease progression. This study investigates the patient and provider factors associated with treatment patterns in U.S. patients with AIH. APPROACH RESULTS: A retrospective cohort of adults with incident and prevalent AIH was identified from Optum's de-identified Clinformatics® Data Mart Database. All patients were followed for at least 2 years, with exposures assessed during the first year and treatment patterns during the second. Patient and provider factors associated with corticosteroid-sparing monotherapy and cumulative prednisone use were identified using multivariable logistic and linear regression, respectively.The cohort was 81.2% female, 66.3% White, 11.3% Black, 11.2% Hispanic and with median age 61 years. Among 2,203 patients with ≥1 AIH prescription fill, 83.1% received a single regimen for >6 months of the observation year, which included 52.2% azathioprine monotherapy, 16.9% azathioprine/prednisone and 13.3% prednisone monotherapy. Budesonide use was uncommon (2.1% combination, 1.9% monotherapy). Hispanic ethnicity (aOR 0.56; p=0.006), cirrhosis (aOR 0.73; p=0.019), osteoporosis (aOR 0.54; p=0.001) and top quintile of provider AIH experience (aOR 0.66; p=0.005) were independently associated with lower use of corticosteroid-sparing monotherapy. Cumulative prednisone use was greater with diabetes (+441 mg/year; p=0.004), osteoporosis (+749 mg/year; p<0.001) and highly experienced providers (+556 mg/year; p<0.001). CONCLUSIONS: Long-term prednisone therapy remains common, and unexpectedly higher among patients with comorbidities potentially aggravated by corticosteroids. The greater use of corticosteroid-based therapy with highly experienced providers may reflect more treatment-refractory disease.

3.
Artigo em Inglês | MEDLINE | ID: mdl-38820270

RESUMO

RATIONALE: Pulmonary arterial hypertension (PAH) and chronic thromboembolic pulmonary hypertension (CTEPH) cause right ventricular dysfunction which can impact other solid organs. However, the profiles and consequences of hepatic injury due to PAH and CTEPH have not been well-studied. OBJECTIVES: We aimed to identify underlying patterns of liver injury in a cohort of PAH and CTEPH patients enrolled in 15 randomized clinical trials conducted between 1998 and 2014. METHODS: We used unsupervised machine learning to identify liver injury clusters in 13 trials and validated the findings in two additional trials. We then determined whether these liver injury clusters were associated with clinical outcomes or treatment effect heterogeneity. MEASUREMENTS AND MAIN RESULTS: Our training dataset included 4,219 patients and our validation dataset included 1,756 patients with serum total bilirubin, alkaline phosphatase, aspartate aminotransferase, alanine aminotransferase, and albumin data. Using k-means clustering, we identified phenotypes with no liver injury, hepatocellular injury, cholestatic injury, and combined injury patterns. Patients in the cholestatic injury liver cluster had the shortest time to clinical worsening and the highest risk of mortality. The cholestatic injury group also experienced the greatest placebo-corrected treatment effect on six-minute walk distance. Randomization to the experimental arm transitioned patients to a healthier liver status. CONCLUSIONS: Liver injury was associated with adverse outcomes in patients with PAH and CTEPH. Randomization to active treatment had beneficial effects on liver health compared to placebo. The role of liver disease (often subclinical) in determining outcomes warrants prospective studies.

4.
Liver Transpl ; 30(4): 347-355, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-37801553

RESUMO

Hepatorenal syndrome-acute kidney injury (HRS-AKI), a serious complication of decompensated cirrhosis, has limited therapeutic options and significant morbidity and mortality. Terlipressin improves renal function in some patients with HRS-1, while liver transplantation (LT) is a curative treatment for advanced chronic liver disease. Renal failure post-LT requiring renal replacement therapy (RRT) is a major risk factor for graft and patient survival. A post hoc analysis with a 12-month follow-up of LT recipients from a placebo-controlled trial of terlipressin (CONFIRM; NCT02770716) was conducted to evaluate the need for RRT and overall survival. Patients with HRS-1 were treated with terlipressin plus albumin or placebo plus albumin for up to 14 days. RRT was defined as any type of procedure that replaced kidney function. Outcomes compared between groups included the incidence of HRS-1 reversal, the need for RRT (pretransplant and posttransplant), and overall survival. Of the 300 patients in CONFIRM (terlipressin n = 199; placebo, n = 101), 70 (23%) underwent LT alone (terlipressin, n = 43; placebo, n = 27) and 5 had simultaneous liver-kidney transplant (terlipressin, n = 3, placebo, n = 2). The rate of HRS reversal was significantly higher in the terlipressin group compared with the placebo group (37%, n = 16 vs. 15%, n = 4; p = 0.033). The pretransplant need for RRT was significantly lower among those who received terlipressin ( p = 0.007). The posttransplant need for RRT, at 12 months, was significantly lower among those patients who received terlipressin and were alive at Day 365, compared to placebo ( p = 0.009). Pretransplant treatment with terlipressin plus albumin in patients with HRS-1 decreased the need for RRT pretransplant and posttransplant.


Assuntos
Síndrome Hepatorrenal , Transplante de Fígado , Humanos , Terlipressina/efeitos adversos , Síndrome Hepatorrenal/etiologia , Síndrome Hepatorrenal/terapia , Vasoconstritores/uso terapêutico , Transplante de Fígado/efeitos adversos , Terapia de Substituição Renal/efeitos adversos , Albuminas/efeitos adversos , Lipressina/efeitos adversos , Resultado do Tratamento , Cirrose Hepática/complicações
5.
Liver Transpl ; 2024 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-38771635

RESUMO

Hepatorenal syndrome-acute kidney injury (HRS-AKI) is associated with significant morbidity and mortality. While liver transplantation is the definitive treatment, continuous terlipressin infusion for HRS-AKI may provide benefit and, as such, was assessed in a population composed of candidates for liver transplant (LT). Fifty hospitalized LT-eligible patients with HRS-AKI received a single bolus followed by continuous terlipressin infusion. Acute-on-chronic liver failure grade 3, serum creatinine (SCr)>5.0 mg/dL, or Model for End-Stage Liver Disease (MELD) ≥35 were exclusions. Fifty hospitalized patients who received midodrine and octreotide or norepinephrine for HRS-AKI served as a historical comparator cohort. Complete response (CR) was defined as a ≥30% decrease in SCr with end-of-treatment (EOT) SCr≤1.5, partial response as a ≥30% decrease in SCr with EOT SCr>1.5, and nonresponse as a <30% decrease in SCr. CR rate was significantly higher in the terlipressin cohort compared to the historical cohort (64% vs. 16%, p <0.001). Survival, while numerically higher in those who received terlipressin, was statistically similar (D30: 94% vs. 82%, p =0.12; D90: 78% vs. 68%, p =0.37). Renal replacement therapy (RRT) was more common among terlipressin NR than CR and PR (70% vs. 3% vs. 13%, p < 0.001). EOT MELD and SCr were significantly lower within terlipressin cohort (MELD: 19 vs. 25, SCr: 1.4 vs. 2.1 mg/dL, p <0.001). Sixteen of 40 terlipressin-treated patients received LT-alone (terlipressin CR in 10/16). One patient on terlipressin had a hypoxic respiratory failure that responded to diuretics; one possibly had drug-related rash. With continuous terlipressin infusion, a CR rate of 64% was observed with a favorable safety profile. Terlipressin use was associated with lower EOT MELD and SCr than the historical midodrine and octreotide/norepinephrine cohort; LT-alone was accomplished in a high proportion of complete terlipressin responders.

6.
Hepatology ; 77(4): 1253-1262, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36651183

RESUMO

BACKGROUND: Early liver transplantation for alcohol-associated hepatitis is controversial in part because patients may recover, and obviate the need for liver transplantation. METHODS: In this retrospective study among 5 ACCELERATE-AH sites, we randomly sampled patients evaluated and then declined for liver transplantation for alcohol-associated hepatitis. All had Model of End-Stage Liver Disease (MELD) >20 and <6 months of abstinence. Recompensation was defined as MELD <15 without variceal bleeding, ascites, or overt HE requiring treatment. Multilevel mixed effects linear regression was used to calculate probabilities of recompensation; multivariable Cox regression was used for mortality analyses. RESULTS: Among 145 patients [61% men; median abstinence time and MELD-Na was 33 days (interquartile range: 13-70) and 31 (interquartile range: 26-36), respectively], 56% were declined for psychosocial reasons. Probability of 30-day, 90-day, 6-month, and 1-year survival were 76% (95% CI, 68%-82%), 59% (95% CI, 50%-66%), 49% (95% CI, 40%-57%), and 46% (95% CI, 37%-55%), respectively. Probability of 1-year recompensation was low at 10.0% (95% CI, 4.5%-15.4%). Among patients declined because of clinical improvement, 1-year probability of recompensation was 28.0% (95% CI, 5.7%-50.3%). Among survivors, median MELD-Na at 30 days, 90 days, and 1-year were 29 (interquartile range: 22-38), 19 (interquartile range : 14-29), and 11 (interquartile range : 7-17). Increased MELD-Na (adjusted HR: 1.13, p <0.001) and age (adjusted HR: 1.03, p <0.001) were associated with early (≤90 d) death, and only history of failed alcohol rehabilitation (adjusted HR: 1.76, p =0.02) was associated with late death. CONCLUSIONS: Liver recompensation is infrequent among severe alcohol-associated hepatitis patients declined for liver transplantation. Higher MELD-Na and age were associated with short-term mortality, whereas only history of failed alcohol rehabilitation was associated with long-term mortality. The distinction between survival and liver recompensation merits further attention.


Assuntos
Doença Hepática Terminal , Varizes Esofágicas e Gástricas , Hepatite Alcoólica , Transplante de Fígado , Masculino , Humanos , Feminino , Estudos Retrospectivos , Hemorragia Gastrointestinal , Hepatite Alcoólica/cirurgia , Doença Hepática Terminal/cirurgia , Índice de Gravidade de Doença
7.
Clin Transplant ; 38(7): e15381, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38940230

RESUMO

BACKGROUND: Alcohol-associated liver disease (ALD) is a leading indication for liver transplant (LT) in the United States. Rates of early liver transplant (ELT) with less than 6 months of sobriety have increased substantially. Patients who receive ELT commonly have alcohol-associated hepatitis (AH) and are often too ill to complete an intensive outpatient program (IOP) for alcohol use disorder (AUD) prior to LT. ELT recipients feel alienated from traditional IOPs. METHODS: We implemented Total Recovery-LT, a tailored virtual outpatient IOP specific for patients under evaluation or waitlisted for LT who were too ill to attend community-based alcohol treatment programs. The 12-week program consisted of weekly group and individual counseling delivered by a master's level Certified Addiction Counselor trained in the basics of LT.  Treatment consisted of 12-Step Facilitation, Motivational Interviewing, and Cognitive Behavioral Therapy. We report on program design, implementation, feasibility and early outcomes. RESULTS: From March 2021 to September 2022, 42 patients (36% female, 23 in LT evaluation, 19 post-transplant) enrolled across five cohorts with 76% (32/42) completing the program. Alcohol relapse was more common among noncompleters versus those who completed the program (8/10, 80% vs. 7/32, 22%, p = 0.002). History of trauma or post-traumatic stress symptoms were associated with lower likelihood of completion. Patients' desire for continued engagement after completion led to the creation of a monthly alumni group. CONCLUSIONS: Our integrated IOP model for patients with high-risk AUD in LT evaluation or post-transplant is well-received by patients and could be considered a model for LT programs.


Assuntos
Alcoolismo , Estudos de Viabilidade , Transplante de Fígado , Recidiva , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Seguimentos , Alcoolismo/complicações , Alcoolismo/terapia , Prognóstico , Adulto , Complicações Pós-Operatórias , Telemedicina , Hepatopatias Alcoólicas/cirurgia , Hepatopatias Alcoólicas/terapia , Hepatopatias Alcoólicas/complicações
8.
Am J Transplant ; 23(6): 776-785, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36731782

RESUMO

Health disparities have been well-described in all stages of the liver transplantation (LT) process. Using data from psychosocial evaluations and the Stanford Integrated Psychosocial Assessment, our objective was to investigate potential racial and ethnic inequities in overall LT waitlisting and not waitlisting for medical or psychosocial reasons. In a cohort of 2271 candidates evaluated for LT from 2014 to 2021 and with 1-8 years of follow-up, no significant associations were noted between race/ethnicity and overall waitlisting and not waitlisting for medical reasons. However, compared with White race, Black race (odds ratio [OR], 1.65; 95% confidence interval [CI], 1.07-2.56) and Hispanic/Latinx ethnicity (OR, 2.10; 95% CI, 1.16-3.78) were associated with not waitlisting for psychosocial reasons. After adjusting for sociodemographic variables, the relationship persisted in both populations: Black (OR, 1.95; 95% CI, 1.12-3.38) and Hispanic/Latinx (OR, 2.29; 95% CI, 1.08-4.86) (reference group, White). High-risk Stanford Integrated Psychosocial Assessment scores were more prevalent in Black and Hispanic/Latinx patients, likely reflecting upstream factors and structural racism. Health systems and LT centers should design programs to combat these disparities and improve equity in access to LT.


Assuntos
Disparidades em Assistência à Saúde , Transplante de Fígado , Listas de Espera , Humanos , Negro ou Afro-Americano , Etnicidade , Hispânico ou Latino , Brancos
9.
Dig Dis Sci ; 68(6): 2344-2359, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-36781572

RESUMO

BACKGROUND: Patients with cirrhosis are at high risk of mortality after organ failure that requires ICU care. There have been attempts to predict which patients are at highest risk, with some success found in adapting liver disease-specific scoring systems with clinical variables commonly associated with critical illness. However, the clinical factors predictive of which patients with cirrhosis are most at-risk of needing ICU level care are unknown. AIMS: Our study set out to better understand which clinical variables were associated with need for ICU care in patients with cirrhosis. METHODS: Retrospective analysis of admitted patients with cirrhosis at single tertiary care center. RESULTS: Patients with cirrhosis admitted to our center were categorized into three groups: those without ICU transfer, those admitted to the ICU directly from the emergency department (ED), and those admitted to the ICU from the medicine floor. These groups differed in mortality at 30 days (3.5% vs. 15% vs. 25%, P < 0.001) and at subsequent intervals up to 1 year. These groups differed in indication for ICU transfer, with GI bleed, hemorrhagic shock, hepatic encephalopathy, and hyponatremia occurring more in the ED-to-ICU group, while respiratory failure was more common in the floor-to-ICU group. In multivariable analysis, factors associated with ICU transfer included worsened kidney function, anemia, hyponatremia, leukocytosis, and the decision to obtain a lactate level. Similar analysis with only floor-to-ICU patients found that ICU transfer was associated with hypoalbuminemia, hyponatremia, hypotension, and SIRS score. CONCLUSION: Our study found significant differences in mortality among three distinct groups of patients with cirrhosis. A risk factor model for ICU transfer found that variables both specific and nonspecific to liver disease were associated with ICU transfer, with between-group differences supporting the idea of different clinical phenotypes and suggesting factors that should be considered in early triage and assessment of hospitalized patients with cirrhosis.


Assuntos
Hiponatremia , Humanos , Estudos Retrospectivos , Hiponatremia/complicações , Prognóstico , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico , Cirrose Hepática/terapia , Unidades de Terapia Intensiva , Mortalidade Hospitalar
10.
Am J Transplant ; 22(7): 1834-1841, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35416409

RESUMO

Early liver transplantation (LT) for alcohol-associated hepatitis (AH) is the fastest growing indication for LT, but prediction of harmful alcohol use post-LT remains limited. Among 10 ACCELERATE-AH centers, we examined psychosocial evaluations from consecutive LT recipients for AH from 2006 to 2017. A multidisciplinary panel used content analysis to develop a maximal list of psychosocial variables. We developed an artificial intelligence model to predict post-LT harmful alcohol use. The cohort included training (N = 91 among 8 centers) and external validation (N = 25 among 2 centers) sets, with median follow-up of 4.4 (IQR 3.0-6.0) years post-LT. In the training set, AUC was 0.930 (95%CI 0.862-0.998) with positive predictive value of 0.891 (95%CI 0.620-1.000), internally validated through fivefold cross-validation. In the external validation set, AUC was 0.692 (95%CI 0.666-0.718) with positive predictive value of 0.82 (95%CI 0.625-1.000). The model identified specific variables related to social support and substance use as highly important to predict post-LT harmful alcohol use. We retrospectively developed and validated a model that identified psychosocial profiles at LT predicting harmful alcohol use post-LT for AH. This preliminary model may inform selection and post-LT management for AH and warrants prospective evaluation in larger studies among all alcohol-associated liver disease being considered for early LT.


Assuntos
Alcoolismo , Hepatite Alcoólica , Hepatopatias Alcoólicas , Transplante de Fígado , Alcoolismo/complicações , Inteligência Artificial , Hepatite Alcoólica/complicações , Hepatite Alcoólica/diagnóstico , Hepatite Alcoólica/cirurgia , Humanos , Hepatopatias Alcoólicas/complicações , Transplante de Fígado/efeitos adversos , Recidiva , Estudos Retrospectivos
11.
Clin Gastroenterol Hepatol ; 20(2): 409-418.e5, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-33279780

RESUMO

BACKGROUND & AIMS: Early liver transplantation (LT) for alcoholic hepatitis (AH) is lifesaving but concerns regarding return to harmful alcohol use remain. We sought to identify distinct patterns of alcohol use post-LT to inform pre-LT candidate selection and post-LT addiction care. METHODS: Detailed post-LT alcohol use data was gathered retrospectively from consecutive patients with severe AH at 11 ACCELERATE-AH sites from 2006-2018. Latent class analysis identified longitudinal patterns of alcohol use post-LT. Logistic and Cox regression evaluated associations between patterns of alcohol use with pre-LT variables and post-LT survival. A microsimulation model estimated the effect of selection criteria on overall outcomes. RESULTS: Of 153 LT recipients, 1-, 3-, and 5-year survival were 95%, 88% and 82%. Of 146 LT recipients surviving to home discharge, 4 distinct longitudinal patterns of post-LT alcohol use were identified: Pattern 1 [abstinent](n = 103; 71%), pattern 2 [late/non-heavy](n = 9; 6.2%), pattern 3 [early/non-heavy](n = 22; 15%), pattern 4 [early/heavy](n = 12; 8.2%). One-year survival was similar among the 4 patterns (100%), but patients with early post-LT alcohol use had lower 5-year survival (62% and 53%) compared to abstinent and late/non-heavy patterns (95% and 100%). Early alcohol use patterns were associated with younger age, multiple prior rehabilitation attempts, and overt encephalopathy. In simulation models, the pattern of post-LT alcohol use changed the average life-expectancy after early LT for AH. CONCLUSIONS: A significant majority of LT recipients for AH maintain longer-term abstinence, but there are distinct patterns of alcohol use associated with higher risk of 3- and 5-year mortality. Pre-LT characteristics are associated with post-LT alcohol use patterns and may inform candidate selection and post-LT addiction care.


Assuntos
Hepatite Alcoólica , Transplante de Fígado , Abstinência de Álcool , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/epidemiologia , Hepatite Alcoólica/cirurgia , Humanos , Transplante de Fígado/efeitos adversos , Recidiva , Estudos Retrospectivos
12.
Am J Gastroenterol ; 117(12): 1990-1998, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-35853462

RESUMO

INTRODUCTION: In the published studies of early liver transplantation (LT) for alcohol-associated hepatitis (AH), patients with a prior liver decompensation are excluded. The appropriateness of this criteria is unknown. METHODS: Among 6 American Consortium of Early Liver Transplantation for Alcohol-Associated Hepatitis sites, we included consecutive early LT for clinically diagnosed AH between 2007 and 2020. Patients were stratified as first vs prior history of liver decompensation, with the latter defined as a diagnosis of ascites, hepatic encephalopathy, variceal bleeding, or jaundice, and evidence of alcohol use after this event. Adjusted Cox regression assessed the association of first (vs prior) decompensation with post-LT mortality and harmful (i.e., any binge and/or frequent) alcohol use. RESULTS: A total of 241 LT recipients (210 first vs 31 prior decompensation) were included: median age 43 vs 38 years ( P = 0.23), Model for End-Stage Liver Disease Sodium score of 39 vs 39 ( P = 0.98), and follow-up after LT 2.3 vs 1.7 years ( P = 0.08). Unadjusted 1- and 3-year survival among first vs prior decompensation was 93% (95% confidence interval [CI] 89%-96%) vs 86% (95% CI 66%-94%) and 85% (95% CI 79%-90%) vs 78% (95% CI 57%-89%). Prior (vs first) decompensation was associated with higher adjusted post-LT mortality (adjusted hazard ratio 2.72, 95% CI 1.61-4.59) and harmful alcohol use (adjusted hazard ratio 1.77, 95% CI 1.07-2.94). DISCUSSION: Prior liver decompensation was associated with higher risk of post-LT mortality and harmful alcohol use. These results are a preliminary safety signal and validate first decompensation as a criterion for consideration in early LT for AH patients. However, the high 3-year survival suggests a survival benefit for early LT and the need for larger studies to refine this criterion. These results suggest that prior liver decompensation is a risk factor, but not an absolute contraindication to early LT.


Assuntos
Doença Hepática Terminal , Varizes Esofágicas e Gástricas , Hepatite Alcoólica , Transplante de Fígado , Humanos , Adulto , Doença Hepática Terminal/cirurgia , Hemorragia Gastrointestinal , Índice de Gravidade de Doença , Hepatite Alcoólica/cirurgia , Estudos Retrospectivos
13.
Hepatology ; 73(1): 219-232, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-32267547

RESUMO

BACKGROUND AND AIMS: Outcomes with anticoagulation (AC) are understudied in advanced liver disease. We investigated effects of AC with warfarin and direct oral anticoagulants (DOACs) on all-cause mortality and hepatic decompensation as well as ischemic stroke, major adverse cardiovascular events, splanchnic vein thrombosis, and bleeding in a cohort with cirrhosis and atrial fibrillation (AF). APPROACH AND RESULTS: This was a retrospective, longitudinal study using national data of U.S. veterans with cirrhosis at 128 medical centers, including patients with cirrhosis with incident AF, from January 1, 2012 to December 31, 2017 followed through December 31, 2018. To assess the effects of AC on outcomes, we applied propensity score (PS) matching and marginal structural models (MSMs) to account for confounding by indication and time-dependent confounding. The final cohort included 2,694 veterans with cirrhosis with AF (n = 1,694 and n = 704 in the warfarin and DOAC cohorts after PS matching, respectively) with a median of 4.6 years of follow-up. All-cause mortality was lower with warfarin versus no AC (PS matched: hazard ratio [HR], 0.65; 95% confidence interval [CI], 0.55-0.76; MSM models: HR, 0.54; 95% CI, 0.40-0.73) and DOACs versus no AC (PS matched: HR, 0.68; 95% CI, 0.50-0.93; MSM models: HR, 0.50; 95% CI, 0.31-0.81). In MSM models, warfarin (HR, 0.29; 95% CI, 0.09-0.90) and DOACs (HR, 0.23; 95% CI, 0.07-0.79) were associated with reduced ischemic stroke. In secondary analyses, bleeding was lower with DOACs compared to warfarin (HR, 0.49; 95% CI, 0.26-0.94). CONCLUSIONS: Warfarin and DOACs were associated with reduced all-cause mortality. Warfarin was associated with more bleeding compared to no AC. DOACs had a lower incidence of bleeding compared to warfarin in exploratory analyses. Future studies should prospectively investigate these observed associations.


Assuntos
Anticoagulantes/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Fibrilação Atrial/epidemiologia , Cirrose Hepática/epidemiologia , Mortalidade , Administração Oral , Idoso , Causas de Morte , Feminino , Hemorragia/epidemiologia , Humanos , Incidência , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/epidemiologia , Estados Unidos/epidemiologia , Veteranos , Varfarina/uso terapêutico
14.
Semin Liver Dis ; 41(2): 163-171, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33957695

RESUMO

Within the field of randomized clinical trials (RCTs), the randomized double-blind placebo-controlled clinical trial is considered the most efficient means of simultaneously assessing the efficacy and safety of a medical therapy in a single trial. While many RCTs are conducted without blinding (open label), it is rare to encounter a blinded trial that does not randomize its subjects. Clinical trials for chronic liver diseases have adopted many of the practices set forth by RCTs in other chronic diseases, but blinding has often been difficult to properly implement. This review examines the rationale for blinding, common challenges to successful blinding, different mechanisms of unintentional unblinding in clinical trials for viral hepatitis and nonalcoholic steatohepatitis, and recommendations for blinding and design in future trials of treatments for liver disease.


Assuntos
Hepatopatias , Método Duplo-Cego , Humanos , Hepatopatias/terapia , Ensaios Clínicos Controlados Aleatórios como Assunto
15.
J Hepatol ; 74(2): 274-282, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33038432

RESUMO

BACKGROUND & AIMS: Non-alcoholic steatohepatitis is a leading cause of end-stage liver disease. Hepatic steatosis and lipotoxicity cause chronic necroinflammation and direct hepatocellular injury resulting in cirrhosis, end-stage liver disease and hepatocellular carcinoma. Emricasan is a pan-caspase inhibitor that inhibits excessive apoptosis and inflammation; it has also been shown to decrease portal pressure and improve synthetic function in mice with carbon tetrachloride-induced cirrhosis. METHODS: This double-blind, placebo-controlled study randomized 217 individuals with decompensated NASH cirrhosis 1:1:1 to emricasan (5 mg or 25 mg) or placebo. Patients were stratified by decompensation status and baseline model for end-stage liver disease-sodium (MELD-Na) score. The primary endpoint comprised all-cause mortality, a new decompensation event (new or recurrent variceal hemorrhage, new ascites requiring diuretics, new unprecipitated hepatic encephalopathy ≥grade 2, hepatorenal syndrome, spontaneous bacterial peritonitis), or an increase in MELD-Na score ≥4 points. RESULTS: There was no difference in event rates between either of the emricasan treatment groups and placebo, with hazard ratios of 1.02 (95% CI 0.59-1.77; p = 0.94) and 1.28 (95% CI 0.75-2.21; p = 0.37) for 5 mg and 25 mg of emricasan, respectively. MELD-Na score progression was the most common outcome. There was no significant effect of emricasan treatment on MELD-Na score, international normalized ratio, total serum bilirubin, albumin level or Child-Pugh score. Emricasan was generally safe and well-tolerated. CONCLUSIONS: Emricasan was safe but ineffective for the treatment of decompensated NASH cirrhosis. However, this study may guide the design and conduct of future clinical trials in decompensated NASH cirrhosis. LAY SUMMARY: Patients with decompensated cirrhosis related to non-alcoholic steatohepatitis are at high risk of additional decompensation events and death. Post hoc analyses in previous pilot studies suggested that emricasan might improve portal hypertension and liver function. In this larger randomized study, emricasan did not decrease the number of decompensation events or improve liver function in patients with a history of decompensated cirrhosis related to non-alcoholic steatohepatitis. CLINICALTRIALS. GOV IDENTIFIER: NCT03205345.


Assuntos
Ascite , Hemorragia Gastrointestinal , Encefalopatia Hepática , Cirrose Hepática , Testes de Função Hepática/métodos , Hepatopatia Gordurosa não Alcoólica , Ácidos Pentanoicos , Peritonite , Ascite/etiologia , Ascite/prevenção & controle , Inibidores de Caspase/administração & dosagem , Inibidores de Caspase/efeitos adversos , Progressão da Doença , Monitoramento de Medicamentos/métodos , Doença Hepática Terminal/etiologia , Doença Hepática Terminal/prevenção & controle , Varizes Esofágicas e Gástricas/etiologia , Varizes Esofágicas e Gástricas/fisiopatologia , Feminino , Hemorragia Gastrointestinal/etiologia , Hemorragia Gastrointestinal/prevenção & controle , Encefalopatia Hepática/etiologia , Encefalopatia Hepática/prevenção & controle , Humanos , Cirrose Hepática/sangue , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/etiologia , Cirrose Hepática/mortalidade , Masculino , Pessoa de Meia-Idade , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/diagnóstico , Ácidos Pentanoicos/administração & dosagem , Ácidos Pentanoicos/efeitos adversos , Peritonite/etiologia , Peritonite/prevenção & controle , Resultado do Tratamento
16.
Clin Gastroenterol Hepatol ; 19(5): 996-1008.e6, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-32629123

RESUMO

BACKGROUND & AIMS: Nonalcoholic fatty liver disease (NAFLD) is typically associated with obesity. Little is known about the prevalence of cirrhosis in patients with NAFLD and a normal body mass index (BMI). METHODS: We determined prevalence of cirrhosis, cardiovascular disease (CVD), and metabolic abnormalities among participants in all BMI categories in the TARGET-NASH study. A total of 3386 patients with NAFLD were enrolled from August 2016 through March 2019. The odds ratios of cirrhosis, CVD, and metabolic abnormalities were estimated by age and race, adjusting for sex and center type. RESULTS: Based on standard BMI cutoff values, 12.8% of study subjects were lean, 27.1% were overweight, 26.5% had class 1 obesity, and 33.7% had class 2 or 3 obesity. Asians accounted for 48.7% of lean participants, and proportions decreased as BMI categories increased (P < .0001). Lower proportions of lean participants had cirrhosis (22.6% vs 40.2% of non-lean participants), CVD history (9.0% vs 14.8% of nonlean participants), diabetes (32.6% vs 53.5% of non-lean participants), hypertension (47.8% vs 67.4% of non-lean participants), or dyslipidemia (54.0% vs 64.1% of non-lean participants). Asian participants had a lower prevalence of cirrhosis, history of CVD, cardiovascular events, and diabetes compared with non-Asians, independent of BMI category. After we adjusted for age, sex, and center type and site, the odds of NAFLD-associated cirrhosis in Asians who were lean was almost half the odds of NAFLD-associated cirrhosis in non-Asians who were lean (odds ratio, 0.47; 95% CI, 0.29-0.77). CONCLUSIONS: More than 10% participants in a cohort of persons with NAFLD in the United States are lean; Asians account for almost half of the lean persons with NAFLD. Lean participants had a lower prevalence of cirrhosis, CVD, and metabolic abnormalities than non-lean persons with NAFLD. Asian participants had a significantly lower prevalence of cirrhosis, CVD, and metabolic abnormalities than non-Asians in all BMI categories. ClinicalTrials.gov, Number: NCT02815891.


Assuntos
Diabetes Mellitus , Hepatopatia Gordurosa não Alcoólica , Humanos , Cirrose Hepática/epidemiologia , Hepatopatia Gordurosa não Alcoólica/epidemiologia , Obesidade/complicações , Obesidade/epidemiologia , Sobrepeso , Prevalência , Fatores de Risco , Estados Unidos/epidemiologia
17.
Liver Transpl ; 27(5): 652-667, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33320417

RESUMO

The Stanford Integrated Psychosocial Assessment for Transplant (SIPAT) is a standardized psychosocial evaluation tool used in liver transplantation (LT) evaluation. We assessed the impact of the SIPAT score and subdomains on transplant waitlisting decisions and post-LT outcomes including immunosuppression (IS) nonadherence, biopsy-proven rejection, andmortality/graft failure. We conducted a single-center observational cohort study of 1430 patients evaluated for LT. Patients were divided in 2 groups based on a SIPAT cutoff score of <21 or ≥21 (higher SIPAT scores indicate higher psychosocial risk). Regression models assessed relationships between total SIPAT score and domain scores and waitlisting decisions, IS nonadherence, allograft rejection, and death/graft failure. Elevated total SIPAT and SIPAT domain scores were associated not being added to the waitlist (total SIPAT core ≥21 adjusted odds ratio [aOR], 1.78 [95% confidence interval, CI, 1.36-2.33]; readiness score ≥5 aOR, 2.01 [95% CI, 1.36-2.76]; social support score ≥4aOR, 1.50 [95% CI, 1.15-1.94]; psychopathology score ≥7 aOR, 1.45 [95% CI, 1.07-1.94]; lifestyle/substance abuse score ≥12 aOR, 1.72 [95%CI, 1.23-2.39]) and were more likely to experience IS nonadherence as measured by the tacrolimus coefficient of variation (CoV) (total SIPAT score ≥21 aOR, 2.92 [95% CI, 1.69-5.03]; readiness score ≥5 aOR, 3.26 [95% CI, 1.63-6.52]; psychopathology score ≥7 aOR, 1.88 [95% CI, 1.00-3.50]; lifestyle substance abuse score ≥12 aOR, 3.03 [95% CI, 1.56-5.86]). SIPAT readinessscore ≥5 was associated with biopsy-proven allograft rejection (aOR, 2.66; 95% CI, 1.20-5.91). The SIPAT score was independently associated with LT listing decisions and IS nonadherence, and the readiness domain was associated with the risk of allograft rejection. These findings offer insights into higher risk recipients who require additional support before and aftertransplantation.


Assuntos
Transplante de Coração , Transplante de Fígado , Rejeição de Enxerto/diagnóstico , Rejeição de Enxerto/epidemiologia , Humanos , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos , Apoio Social
18.
Liver Transpl ; 27(4): 568-579, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33164276

RESUMO

Despite achieving sustained virologic response (SVR) to hepatitis C virus (HCV) therapy, there remains a post liver transplantation population with advanced fibrosis/cirrhosis. Emricasan is an orally active, pan-caspase inhibitor that suppresses apoptosis and inflammation, potentially decreasing hepatic inflammation and fibrosis. We aimed to determine the safety and efficacy of emricasan (IDN-6556-07) in a double-blind, randomized, placebo-controlled, multicenter study in reducing or preventing the progression of hepatic fibrosis in HCV liver transplant recipients with residual fibrosis or cirrhosis after achieving SVR. A total of 64 participants were randomly assigned to receive 25 mg twice daily of emricasan or placebo in a 2:1 ratio for 24 months. 41 participants were randomly assigned to emricasan and 23 to placebo; 32 participants in the emricasan group (78.0%) and 19 who took a placebo (82.6%) completed the study. There was no difference in the primary endpoint (Ishak fibrosis stages F2-F5, improvement in fibrosis or stability; Ishak fibrosis stage F6, improvement) between the emricasan (77.1%) and placebo groups (74.1%); P = NS. There was no difference between the emricasan (54.5%) and placebo (60.7%) arms in the rate of fibrosis improvement alone. However, those in the prespecified F3 to F5 subgroup had higher rates of stability or improvement in fibrosis in the emricasan group (95.2%) compared with placebo (54.6%) (P = 0.01). The tolerability and safety profiles were similar in both groups. In conclusion, overall stability in the Ishak fibrosis stage was similar between emricasan and placebo groups at 24 months. However, there was improvement and/or stability in fibrosis stage in the prespecified F3 to F5 subgroup with emricasan versus placebo, suggesting that patients with moderate fibrosis may benefit with emricasan.


Assuntos
Hepatite C Crônica , Hepatite C , Transplante de Fígado , Antivirais/uso terapêutico , Método Duplo-Cego , Fibrose , Hepacivirus , Hepatite C/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Humanos , Cirrose Hepática/tratamento farmacológico , Transplante de Fígado/efeitos adversos , Ácidos Pentanoicos
19.
J Vasc Interv Radiol ; 32(11): 1606-1614, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34416366

RESUMO

PURPOSE: To compare patients treated with large-volume paracentesis (LVP), transjugular intrahepatic portosystemic shunt (TIPS), and peritoneovenous shunt (PVS) for ascites. MATERIALS AND METHODS: A retrospective study of 192 patients treated with LVP (94), TIPS (75), or PVS (23) was performed. Records were reviewed for patient characteristics and outcomes. The patients' age differed (LVP, 59.5 years; TIPS, 58.8 years; and PVS, 65.6 years; P = .003). Nonalcoholic steatohepatitis was the most common etiology in the PVS cohort (11/23, 47%), and hepatitis C in the TIPS (27/75, 36%), and LVP cohorts (43/94, 46%) (P = .032). The model for end-stage liver disease score was significantly different (LVP, 14; TIPS, 13; and PVS, 8; P = .035). Hepatocellular carcinoma was higher in the PVS cohort (6/23 patients, 25%) than in the TIPS (4/75, 5%), and LVP (12/94, 12%) cohorts (P = .03). RESULTS: Emergency department visits and hospital readmissions were the highest in the LVP cohort (40%, ≥2 readmissions, P < .001). Patients required fewer LVPs after TIPS (1.5 to 0.14, P < .001) or PVS (2.1 to 0.5, P = .019). In an unadjusted Cox model, patients in the TIPS cohort were found to have a 58% reduction in the risk of death compared with patients in the LVP cohort (P = .003). Transplant-free survival (PVS, 44 days; TIPS, 155 days; and LVP, 213 days) differed (log rank = 0.001). CONCLUSIONS: The survival in the PVS and TIPS cohorts was similar, with less healthcare utilization than the LVP cohort. PVS is a satisfactory alternative to LVP.


Assuntos
Doença Hepática Terminal , Derivação Peritoneovenosa , Derivação Portossistêmica Transjugular Intra-Hepática , Ascite/diagnóstico por imagem , Ascite/etiologia , Doença Hepática Terminal/cirurgia , Humanos , Cirrose Hepática/complicações , Cirrose Hepática/diagnóstico por imagem , Pessoa de Meia-Idade , Derivação Portossistêmica Transjugular Intra-Hepática/efeitos adversos , Estudos Retrospectivos , Índice de Gravidade de Doença , Resultado do Tratamento
20.
Gastroenterology ; 157(2): 472-480.e5, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30998988

RESUMO

BACKGROUND & AIMS: Early liver transplantation (without requiring a minimum period of sobriety) for severe alcohol-associated hepatitis (AH) is controversial: many centers delay eligibility until a specific period of sobriety (such as 6 months) has been achieved. To inform ongoing debate and policy, we modeled long-term outcomes of early vs delayed liver transplantation for patients with AH. METHODS: We developed a mathematical model to simulate early vs delayed liver transplantation for patients with severe AH and different amounts of alcohol use after transplantation: abstinence, slip (alcohol use followed by sobriety), or sustained use. Mortality of patients before transplantation was determined by joint-effect model (based on Model for End-Stage Liver Disease [MELD] and Lille scores). We estimated life expectancies of patients receiving early vs delayed transplantation (6-month wait before placement on the waitlist) and life years lost attributable to alcohol use after receiving the liver transplant. RESULTS: Patients offered early liver transplantation were estimated to have an average life expectancy of 6.55 life years, compared with an average life expectancy of 1.46 life years for patients offered delayed liver transplantation (4.49-fold increase). The net increase in life expectancy from offering early transplantation was highest for patients with Lille scores of 0.50-0.82 and MELD scores of 32 or more. Patients who were offered early transplantation and had no alcohol use afterward were predicted to survive 10.85 years compared with 3.62 years for patients with sustained alcohol use after transplantation (7.23 life years lost). Compared with delayed transplantation, early liver transplantation increased survival times in all simulated scenarios and combinations of Lille and MELD scores. CONCLUSIONS: In a modeling study of assumed carefully selected patients with AH, early vs delayed liver transplantation (6 months of abstinence from alcohol before transplantation) increased survival times of patients, regardless of estimated risk of sustained alcohol use after transplantation. These findings support early liver transplantation for patients with severe AH. The net increase in life expectancy was maintained in all simulated extreme scenarios but should be confirmed in prospective studies. Sustained alcohol use after transplantation significantly reduced but did not eliminate the benefits of early transplantation. Strategies are needed to prevent and treat posttransplantation use of alcohol.


Assuntos
Doença Hepática Terminal/cirurgia , Hepatite Alcoólica/cirurgia , Transplante de Fígado/métodos , Modelos Biológicos , Tempo para o Tratamento , Adulto , Abstinência de Álcool , Consumo de Bebidas Alcoólicas/efeitos adversos , Consumo de Bebidas Alcoólicas/prevenção & controle , Doença Hepática Terminal/diagnóstico , Doença Hepática Terminal/etiologia , Doença Hepática Terminal/mortalidade , Feminino , Hepatite Alcoólica/complicações , Hepatite Alcoólica/diagnóstico , Hepatite Alcoólica/mortalidade , Humanos , Expectativa de Vida , Transplante de Fígado/normas , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Medição de Risco/métodos , Índice de Gravidade de Doença , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento , Listas de Espera
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