Early living donor liver transplantation for alcohol-associated hepatitis

Early living donor liver transplantation for alcohol-associated hepatitis: Status in the era of increasing demand, unmet needs, and future considerations

Hazardous alcohol consumption is the leading cause of liver disease worldwide. Alcohol-associated hepatitis (AH) is an acute and serious presentation of alcohol-associated liver disease that is associated with high short-term mortality. Medical management remains limited to corticosteroid therapy and intensive nutrition but improves survival in <50% of individuals. Liver transplantation (LT) is increasingly recognized as a treatment option for many patients with AH and may lead to greater survival benefits than medical management alone. The rate of waitlistings and LTs for AH has doubled in recent years, especially in the United States. Several studies from the West have reported early LT for AH to be successful, where deceased donor LT is the norm. The challenges of LT in living donor centers, particularly for those with AH, are unique and have previously not been discussed in depth. In this review, we aim to discuss the challenges unique to LDLT with respect to candidate and donor selection, ethical considerations, disparities in LDLT, post-LT alcohol relapse, and measures to prevent them while also addressing the definitions and outcomes of early-living donor liver LT for AH.

Liver Transplantation in Alcohol-Associated Liver Disease

Alcohol-associated liver disease (ALD) is the foremost cause of liver-related mortality in the United States comprising a spectrum of conditions from simple hepatic steatosis to more severe alcohol-associated cirrhosis and alcohol-associated hepatitis. There has been growing acceptance and application of early liver transplantation (eLT) for ALD. There is robust evidence for excellent patient and graft survival rates for eLT for ALD. Nevertheless, recidivism remains a major concern. This article aims to explore the recent trends in liver transplantation for ALD, as well as the advances in practice and outcomes, with focus on eLT and emerging challenges in this field.

Living Donor Liver Transplantation for Alcohol-related Liver Disease: An Intention-to-treat Analysis

BACKGROUND

Alcohol-associated liver disease (ALD) is the leading indication for liver transplantation (LT) in the Western world. Although 6 mo of abstinence is no longer a criterion for patients with ALD, the outcomes of living donor LT (LDLT) versus deceased donor LT (DDLT) are not well established.

METHODSS

We performed an intention-to-treat analysis to evaluate the impact of listing and pursuing primary LDLT (pLDLT) compared with primary DDLT (pDDLT). The primary endpoint was overall survival from date of listing, evaluated using Cox regression (hazard ratios).

RESULTS

Two hundred thirty-three patients with ALD were listed for LT, of which 27 (12%) were pLDLT. The overall median model for end-stage liver disease (MELD) score at listing was 20 and Na-MELD 24, a median abstinence of 4.5 mo, and 128 (55%) underwent transplantation. There was no statistically significant adjusted difference at 3-y overall survival between pLDLT versus pDDLT (adjusted hazard ratio [HR] 0.72; P = 0.550) and in the as-treated analysis (HR 1.22; P = 0.741). No patients were delisted in the pLDLT group, whereas 86 (42%) patients were delisted in the pDDLT group; primarily because of death (46 [50%]) and medical improvement (24 [28%]). Alcohol use since the time of listing was documented in 29 (13%) patients; immortal time bias adjusted analysis found no significant difference between pLDLT and pDDLT (adjusted HR 1.07; P = 0.900) and the as-treated analysis (HR 2.95; P = 0.130).

CONCLUSIONS

Patients with ALD benefit from intention pLDLT with lower rates of waitlist dropout and delisting, attributable to mortality or medical deterioration, and should be encouraged to pursue this option.

Living donor liver transplant for alcohol-associated hepatitis: considerations and global perspectives

INTRODUCTION

In carefully selected individuals, outcomes of early deceased donor liver transplantation (<6 months of sobriety) for severe alcohol-associated hepatitis (AAH) are similar to transplant for other indications. There is increasing interest in the expansion of living donor liver transplant (LDLT) for AAH.

AREAS COVERED

A literature search was conducted in PubMed using search terms 'alcoholic hepatitis,' 'alcohol-associated hepatitis,' 'acute liver failure' and 'living donor liver transplant' between 1995 and 2025. Additional data sources were the International Registry in Organ Donation and Transplantation, and the Scientific Registry of Transplant Recipients. We summarize the global burden of alcohol-associated liver disease (ALD), and the emergence of early LT for AAH. Donor- and recipient-specific factors are explored, as well as societal considerations including equitable allocation and health system financial impact. Finally, current LT practices for ALD by region are reviewed, with a focus on readiness for expansion of LDLT for AAH.

EXPERT OPINION

Use of LDLT for AAH is infrequent, but countries with experience in LT for AAH and/or LDLT for acute liver failure are most poised to expand to LDLT for AAH. Progress is needed in assessing risk of return to harmful drinking and improving management of alcohol use disorder.

Acute-on-chronic liver failure (ACLF): the ‘Kyoto Consensus’—steps from Asia

Acute-on-chronic liver failure (ACLF) is a condition associated with high mortality in the absence of liver transplantation. There have been various definitions proposed worldwide. The first consensus report of the working party of the Asian Pacific Association for the Study of the Liver (APASL) set in 2004 on ACLF was published in 2009, and the “APASL ACLF Research Consortium (AARC)” was formed in 2012. The AARC database has prospectively collected nearly 10,500 cases of ACLF from various countries in the Asia–Pacific region. This database has been instrumental in developing the AARC score and grade of ACLF, the concept of the ‘Golden Therapeutic Window’, the ‘transplant window’, and plasmapheresis as a treatment modality. Also, the data has been key to identifying pediatric ACLF. The European Association for the Study of Liver-Chronic Liver Failure (EASL CLIF) and the North American Association for the Study of the End Stage Liver Disease (NACSELD) from the West added the concepts of organ failure and infection as precipitants for the development of ACLF and CLIF-Sequential Organ Failure Assessment (SOFA) and NACSELD scores for prognostication. The Chinese Group on the Study of Severe Hepatitis B (COSSH) added COSSH-ACLF criteria to manage hepatitis b virus-ACLF with and without cirrhosis. The literature supports these definitions to be equally effective in their respective cohorts in identifying patients with high mortality. To overcome the differences and to develop a global consensus, APASL took the initiative and invited the global stakeholders, including opinion leaders from Asia, EASL and AASLD, and other researchers in the field of ACLF to identify the key issues and develop an evidence-based consensus document. The consensus document was presented in a hybrid format at the APASL annual meeting in Kyoto in March 2024. The ‘Kyoto APASL Consensus’ presented below carries the final recommendations along with the relevant background information and areas requiring future studies.

Acute-on-chronic liver failure (ACLF): the 'Kyoto Consensus'-steps from Asia

Acute-on-chronic liver failure (ACLF) is a condition associated with high mortality in the absence of liver transplantation. There have been various definitions proposed worldwide. The first consensus report of the working party of the Asian Pacific Association for the Study of the Liver (APASL) set in 2004 on ACLF was published in 2009, and the "APASL ACLF Research Consortium (AARC)" was formed in 2012. The AARC database has prospectively collected nearly 10,500 cases of ACLF from various countries in the Asia-Pacific region. This database has been instrumental in developing the AARC score and grade of ACLF, the concept of the 'Golden Therapeutic Window', the 'transplant window', and plasmapheresis as a treatment modality. Also, the data has been key to identifying pediatric ACLF. The European Association for the Study of Liver-Chronic Liver Failure (EASL CLIF) and the North American Association for the Study of the End Stage Liver Disease (NACSELD) from the West added the concepts of organ failure and infection as precipitants for the development of ACLF and CLIF-Sequential Organ Failure Assessment (SOFA) and NACSELD scores for prognostication. The Chinese Group on the Study of Severe Hepatitis B (COSSH) added COSSH-ACLF criteria to manage hepatitis b virus-ACLF with and without cirrhosis. The literature supports these definitions to be equally effective in their respective cohorts in identifying patients with high mortality. To overcome the differences and to develop a global consensus, APASL took the initiative and invited the global stakeholders, including opinion leaders from Asia, EASL and AASLD, and other researchers in the field of ACLF to identify the key issues and develop an evidence-based consensus document. The consensus document was presented in a hybrid format at the APASL annual meeting in Kyoto in March 2024. The 'Kyoto APASL Consensus' presented below carries the final recommendations along with the relevant background information and areas requiring future studies.

Liver transplantation in alcohol-induced acute-on-chronic liver failure without six months of abstinence

Globally, many liver transplantation programs require adherence to a 6-month abstinence period in cases of alcohol-associated liver disease. Especially in cases of decompensation, such as acute-on-chronic liver failure (ACLF), the severity of the disease often makes it impossible to reach this interval, leading to increasing critical scrutiny of a fixed abstinence period. The prognostic relevance of the 6-month abstinence is also not firmly established.In the present study, we analyze all patients who were presented for liver transplantation at a German transplantation center due to acute-on-chronic liver failure caused by alcohol-associated liver disease.Retrospective analyses of patients with alcohol-associated liver disease who did not complete the 6-month abstinence period.Out of the 83 patients initially considered, 78 were included in the final analysis. The patients who underwent liver transplantation (n=16) had a significantly better 5-year survival rate (81.3% vs. 24.2%; p < 0.001). Especially in patients with ACLF and multiple organ dysfunctions (ACLF Grade 3), liver transplantation resulted in a significantly improved survival rate. Patients with an ACLF Grade 3 who were not transplanted died within the first six months after decompensation (92.5% mortality). All surviving transplant recipients continued abstaining from alcohol until the most recent evaluation point (average follow-up time 963 days).Patients experiencing acute-on-chronic liver failure from alcohol-related liver disease clearly benefit from liver transplantation, irrespective of whether they meet the 6-month abstinence criterion. This stipulated waiting period is increasingly debated in current discussions. Our findings emphasize that patients with ACLF, when not transplanted, face significant mortality risks. Such insights should be factored into tailored treatment decisions.

Impact of Karnofsky performance status on outcomes of patients with severe alcohol-associated hepatitis: a propensity-matched analysis

BACKGROUND AND AIMS

Severity scores, including the model for end-stage liver disease (MELD) and discriminant function score, guide the treatment of patients with severe alcohol-associated hepatitis (AH). We aimed to investigate the impact of functional status on outcomes of patients with AH.

METHODS

Medically managed patients (n = 133) with AH from 1 January 2019 to 31 December 2022 were included in this prospective study. The objectives were to compare the long-term survival, recompensation rates, corticosteroid response, incidence of infections, hepatic encephalopathy (HE) and acute kidney injury (AKI) among propensity score-matched patients with good Karnofsky performance status (KPS) (score ≥50) and poor KPS (score <50) using Kaplan-Meier analysis.

RESULTS

Twenty-five patients with good KPS were matched with 25 patients with poor KPS and followed up for a median duration of 10 (0.5-33) months. Survival was 76% (19/25; 95% confidence interval (CI), 54.9-90.6) in patients with good KPS compared to 42.3% (11/25; 95% CI, 23.4-63.1) patients with poor KPS (P = 0.001) at 10 months. The recompensation rate was higher in the good KPS group than in the poor KPS group (68% vs 44%; P = 0.04). A higher proportion of patients in the good KPS group (78.9%) than in the poor KPS group (42.8%; P = 0.03) responded to corticosteroids. Survival was lower among non-responders in the poor KPS group (0% vs 75%; P = 0.01). The proportion of patients who developed infection (36% vs 28%; P = 0.051), HE (36% vs 12%; P = 0.01) and AKI (60% vs 16%; P < 0.001) was higher in patients with poor KPS than in good KPS.

CONCLUSIONS

KPS is an important determinant of outcomes in patients with AH, including survival, recompensation, response to corticosteroids and complications.

Research Priorities and Future Landscape of Clinical Trials in Alcohol-Associated Liver Disease

Liver is the most common organ affected by alcohol misuse. The spectrum of alcohol-associated liver disease (ALD) ranges from simple steatosis to cirrhosis and its complications. The unique clinical phenotype of alcohol-associated hepatitis has a risk for high short-term mortality. Several gaps exist with respect to epidemiology, noninvasive testing, prognostication, and treatment of ALD. Most studies focus on short-term survival as the ideal endpoint and ignore other aspects of alcohol-use disorder and ALD. In this review, the authors discuss the existing knowledge gaps, enumerate ongoing clinical trials, and highlight the research priorities and future landscape of clinical trials.

Expedited liver transplantation as first-line therapy for severe alcohol hepatitis: ELFSAH; deferring corticosteroids in the sickest subset of patients

BACKGROUND & AIMS

Severe alcohol-associated hepatitis (SAH) represents a lethal subset of alcohol-associated liver disease. Although corticosteroids are recommended by guidelines, their efficacy and safety remain questionable and so liver transplantation (LT) has been increasingly utilized. The timing and indication of corticosteroid use, specifically in patients being considered for LT requires further clarification.

METHODS

A retrospective analysis was conducted on 256 patients with SAH between 2018 and 2022 at a single US center.

RESULTS

Twenty of these patients underwent LT. Of the 256 patients, 38% had what we termed "catastrophic" SAH, defined as a MELD-Na ≥35 and/or discriminant function (DF) ≥100, which carried a mortality of 90% without LT. Compared with 100 matched controls, patients undergoing LT exhibited a one-year survival rate of 100% versus 35% (p < .0005). LT provided an absolute risk reduction of 65%, with a number needed to treat of 1.5. Steroid utilization in the entire cohort was 19% with 60% developing severe complications. Patients administered steroids were younger with lower MELD and DF scores. Only 10% of those prescribed steroids derived a favorable response. Sustained alcohol use post-LT was 20%.

CONCLUSIONS

We propose ELFSAH: Expedited LT as First Line Therapy for SAH; challenging the current paradigm with recommendations to defer steroids in patients with "catastrophic" SAH (defined as: MELD-Na ≥35 and/or DF ≥100). Patients should be seen urgently by hepatology, transplant surgery, psychiatry and social work. Patients without an absolute contraindication should be referred for LT as first-line therapy during their index admission.

Antibiotics With or Without Rifaximin for Acute Hepatic Encephalopathy in Critically Ill Patients With Cirrhosis: A Double-Blind, Randomized Controlled (ARiE) Trial

INTRODUCTION

Critically ill patients with cirrhosis admitted to the intensive care unit (ICU) are usually on broad-spectrum antibiotics because of suspected infection or as a hospital protocol. It is unclear if additional rifaximin has any synergistic effect with broad-spectrum antibiotics in ICU patients with acute overt hepatic encephalopathy (HE).

METHODS

In this double-blind trial, patients with overt HE admitted to ICU were randomized to receive antibiotics (ab) alone or antibiotics with rifaximin (ab + r). Resolution (or 2 grade reduction) of HE, time to resolution of HE, in-hospital mortality, nosocomial infection, and changes in endotoxin levels were compared between the 2 groups. A subgroup analysis of patients with decompensated cirrhosis and acute-on-chronic liver failure was performed.

RESULTS

Baseline characteristics and severity scores were similar among both groups (92 in each group). Carbapenems and cephalosporin with beta-lactamase inhibitors were the most commonly used ab. On Kaplan-Meier analysis, 44.6% (41/92; 95% confidence interval [CI], 32-70.5) in ab-only arm and 46.7% (43/92; 95% CI, 33.8-63) in ab + r arm achieved the primary objective ( P = 0.84).Time to achieve the primary objective (3.65 ± 1.82 days and 4.11 ± 2.01 days; P = 0.27) and in-hospital mortality were similar among both groups (62% vs 50%; P = 0.13). Seven percent and 13% in the ab and ab + r groups developed nosocomial infections ( P = 0.21). Endotoxin levels were unaffected by rifaximin. Rifaximin led to lower in-hospital mortality (hazard ratio: 0.39 [95% CI, 0.2-0.76]) in patients with decompensated cirrhosis but not in patients with acute-on-chronic liver failure (hazard ratio: 0.99 [95% CI, 0.6-1.63]) because of reduced nosocomial infections.

DISCUSSION

Reversal of overt HE in those on ab was comparable with those on ab + r.

Review article: Current indications and selection criteria for early liver transplantation in severe alcohol-associated hepatitis

BACKGROUND

Alcohol-associated hepatitis (AH) is a severe inflammatory form of alcohol-associated liver disease (ALD) that carries a high mortality rate. Early liver transplantation for severe AH is increasingly available. However, specific criteria for referral and selection remain a subject of debate.

AIMS

To provide a narrative review of the natural history, diagnostic criteria and indications for referral for early liver transplantation for severe AH.

METHODS

We searched PubMed for articles published through August 2023. Key search terms were 'alcoholic hepatitis,' 'alcohol-associated hepatitis,' 'abstinence,' 'alcohol relapse,' and 'liver transplantation.'

RESULTS

Previously, a six-month period of alcohol abstinence was required before patients with ALD were considered for liver transplantation. However, studies in recent years have demonstrated that, among carefully selected patients, patients who received early transplants have much higher survival rates than patients with similarly severe disease who did not undergo transplants (77% vs. 23%). Despite these successes, early liver transplantation remains controversial, as these patients have typically not undergone treatment for alcohol use disorder, with the ensuing risk of returning to alcohol use.

CONCLUSIONS

While early liver transplantation for AH has survival benefits, many patients would not have received treatment for alcohol use disorder. An integrated approach to evaluating candidacy for early liver transplantation is needed.

Liver Transplantation in Chronic Liver Disease and Acute on Chronic Liver Failure- Indication, Timing and Practices

Liver transplantation (LT) is the second most common solid organ transplantation worldwide. LT is considered the best and most definitive therapeutic option for patients with decompensated chronic liver disease (CLD), hepatocellular carcinoma (HCC), acute liver failure (ALF), and acute-on-chronic liver failure (ACLF). The etiology of CLD shows wide geographical variation, with viral hepatitis being the major etiology in the east and alcohol-related liver disease (ALD) in the west. Non-alcoholic fatty liver disease (NAFLD) is on an increasing trend and is expected to be the most common etiology on a global scale. Since the first successful LT, there have been radical changes in the indications for LT. In many circumstances, not just the liver disease itself but factors such as extra-hepatic organ dysfunction or failures necessitate LT. ACLF is a dynamic syndrome that has extremely high short-term mortality. Currently, there is no single approved therapy for ACLF, and LT seems to be the only feasible therapeutic option for selected patients at high risk of mortality. Early identification of ACLF, stratification of patients according to disease severity, aggressive organ support, and etiology-specific treatment approaches have a significant impact on post-transplant outcomes. This review briefly describes the indications, timing, and referral practices for LT in patients with CLD and ACLF.