1
|
Pinon M, Kamath BM. What's new in pediatric genetic cholestatic liver disease: advances in etiology, diagnostics and therapeutic approaches. Curr Opin Pediatr 2024; 36:524-536. [PMID: 38957097 DOI: 10.1097/mop.0000000000001380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
PURPOSE OF REVIEW To highlight recent advances in pediatric cholestatic liver disease, including promising novel prognostic markers and new therapies. FINDINGS Additional genetic variants associated with the progressive familial intrahepatic cholestasis (PFIC) phenotype and new genetic cholangiopathies, with an emerging role of ciliopathy genes, are increasingly being identified. Genotype severity predicts outcomes in bile salt export pump (BSEP) deficiency, and post-biliary diversion serum bile acid levels significantly affect native liver survival in BSEP and progressive familial intrahepatic cholestasis type 1 (FIC1 deficiency) patients. Heterozygous variants in the MDR3 gene have been associated with various cholestatic liver disease phenotypes in adults. Ileal bile acid transporter (IBAT) inhibitors, approved for pruritus in PFIC and Alagille Syndrome (ALGS), have been associated with improved long-term quality of life and event-free survival. SUMMARY Next-generation sequencing (NGS) technologies have revolutionized diagnostic approaches, while discovery of new intracellular signaling pathways show promise in identifying therapeutic targets and personalized strategies. Bile acids may play a significant role in hepatic damage progression, suggesting their monitoring could guide cholestatic liver disease management. IBAT inhibitors should be incorporated early into routine management algorithms for pruritus. Data are emerging as to whether IBAT inhibitors are impacting disease biology and modifying the natural history of the cholestasis.
Collapse
Affiliation(s)
- Michele Pinon
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | | |
Collapse
|
2
|
Fuchs CD, Simbrunner B, Baumgartner M, Campell C, Reiberger T, Trauner M. Bile acid metabolism and signaling in liver disease. J Hepatol 2024:S0168-8278(24)02572-8. [PMID: 39349254 DOI: 10.1016/j.jhep.2024.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 09/12/2024] [Accepted: 09/17/2024] [Indexed: 10/02/2024]
Abstract
Bile acids (BAs) have signaling functions efficiently regulating their own metabolism and transport as well as key aspects of lipid and glucose homeostasis. BAs shape the gut microbial flora and conversely are metabolized by microbiota. Disruption of BA transport, metabolism and physiological signaling function contribute to the pathogenesis and progression of a wide range of liver diseases including cholestatic disorders and metabolic dysfunction-associated steatotic liver disease (MASLD) as well as hepatocellular and cholangiocellular carcinoma. Additionally, impaired BA signaling may also affect the intestine and kidney, thereby contributing to failure of gut integrity driving the progression and complications of portal hypertension, cholemic nephropathy and the development of extrahepatic malignancies such as colorectal cancer. This review will summarize recent advances in the understanding of BA signaling, metabolism and transport focusing on transcriptional regulation and novel BA-focused therapeutic strategies for cholestatic and metabolic liver diseases.
Collapse
Affiliation(s)
- Claudia D Fuchs
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Benedikt Simbrunner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Maximillian Baumgartner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Clarissa Campell
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Thomas Reiberger
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria.
| |
Collapse
|
3
|
Hof WFJ, de Boer JF, Verkade HJ. Emerging drugs for the treatment of progressive familial intrahepatic cholestasis: a focus on phase II and III trials. Expert Opin Emerg Drugs 2024; 29:305-320. [PMID: 38571480 DOI: 10.1080/14728214.2024.2336986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 03/27/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Progressive familial intrahepatic cholestasis (PFIC) is a group of disorders characterized by inappropriate bile formation, causing hepatic accumulation of bile acids and, subsequently, liver injury. Until recently, no approved treatments were available for these patients. AREAS COVERED Recent clinical trials for PFIC treatment have focused on intestine-restricted ileal bile acid transporter (IBAT) inhibitors. These compounds aim to reduce the pool size of bile acids by interrupting their enterohepatic circulation. Other emerging treatments in the pipeline include systemic IBAT inhibitors, synthetic bile acid derivatives, compounds targeting bile acid synthesis via the FXR/FGF axis, and chaperones/potentiators that aim to enhance the residual activity of the mutated transporters. EXPERT OPINION Substantial progress has been made in drug development for PFIC patients during the last couple of years. Although data concerning long-term efficacy are as yet only scarcely available, new therapies have demonstrated robust efficacy in a considerable fraction of patients at least on the shorter term. However, a substantial fraction of PFIC patients do not respond to these novel therapies and thus still requires surgical treatment, including liver transplantation before adulthood. Hence, there is still an unmet medical need for long-term effective medical, preferably non-surgical, treatment for all PFIC patients.
Collapse
Affiliation(s)
- Willemien F J Hof
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Freark de Boer
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
- Department of Laboratory Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - Henkjan J Verkade
- Department of Pediatrics, University Medical Center Groningen, Groningen, The Netherlands
| |
Collapse
|
4
|
Karatza E, Swift B, Carreño F, Mukherjee S, Casillas L, Lennie J, Fettiplace J, McLaughlin MM, Kremer AE. Serum bile acid change correlates with improvement in pruritus in patients with primary biliary cholangitis receiving linerixibat. Liver Int 2024; 44:2293-2302. [PMID: 38780109 DOI: 10.1111/liv.15982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND & AIMS Total serum bile acid (TSBA) levels are elevated in patients with primary biliary cholangitis (PBC) and may mediate cholestatic pruritus. Linerixibat, an ileal bile acid transporter inhibitor, improved pruritus in patients with PBC. We explored the relationship between linerixibat dose, TSBA concentration, and pruritus. METHODS Data from Phase 1/2 trials were used to develop a population kinetic-pharmacodynamic model to characterize the linerixibat dose-TSBA relationship. Individual Bayesian parameter estimates for participants in the GLIMMER study were used to derive the area under the TSBA concentration curve over 24 h (AUC0-24). Time-matched post hoc estimates of AUC0-24 were correlated with pruritus reported on a 0-10 numerical rating scale. Baseline TSBA concentration was correlated with change from baseline (ΔBL) in monthly itch score (MIS). ΔBL in model-estimated TSBA AUC0-24 was correlated with time-matched ΔBL in weekly itch score (WIS) or MIS. RESULTS Linerixibat dose dependently reduced TSBA AUC0-24, reaching steady state after 5 days. Baseline TSBA levels in GLIMMER did not correlate with ΔBL in MIS. ΔBL in TSBA AUC0-24 correlated with improved WIS over 12 weeks of treatment (r = 0.52, p < 0.0001). Of participants with a ≥30% decrease in TSBA AUC0-24, 60% were pruritus responders (≥2-point improvement in WIS from baseline). CONCLUSIONS Linerixibat treatment leads to rapid, dose-dependent TSBA reductions. Baseline TSBA levels do not correlate with on-treatment pruritus change, suggesting they do not predict linerixibat response. Change in TSBA AUC0-24 correlates significantly with, and can be predictive of, pruritus improvement in patients with PBC.
Collapse
Affiliation(s)
- Eleni Karatza
- The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | | | | | | | | | | | | | - Andreas E Kremer
- Department of Gastroenterology and Hepatology, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| |
Collapse
|
5
|
Tidwell J, Wu GY. Heritable Chronic Cholestatic Liver Diseases: A Review. J Clin Transl Hepatol 2024; 12:726-738. [PMID: 39130622 PMCID: PMC11310751 DOI: 10.14218/jcth.2024.00119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/14/2024] [Accepted: 05/28/2024] [Indexed: 08/13/2024] Open
Abstract
Chronic cholestasis due to heritable causes is usually diagnosed in childhood. However, many cases can present and survive into adulthood. The time course varies considerably depending on the underlying etiology. Laboratory data usually reveal elevated conjugated hyperbilirubinemia, alkaline phosphatase, and gamma-glutamyl transpeptidase. Patients may be asymptomatic; however, when present, the typical symptoms are pruritus, jaundice, fatigue, and alcoholic stools. The diagnostic methods and management required depend on the underlying etiology. The development of genome-wide associated studies has allowed the identification of specific genetic mutations related to the pathophysiology of cholestatic liver diseases. The aim of this review was to highlight the genetics, clinical pathophysiology, presentation, diagnosis, and treatment of heritable etiologies of chronic cholestatic liver disease.
Collapse
Affiliation(s)
- Jasmine Tidwell
- Department of Medicine, University of Connecticut Health Center, Farmington, CT, USA
| | - George Y. Wu
- Department of Medicine, University of Connecticut Health Center, Farmington, CT, USA
- Division of Gastroenterology-Hepatology, University of Connecticut Health Center, Farmington, CT, USA
| |
Collapse
|
6
|
Ahmed MA, Krishna R, Rayad N, Albusaysi S, Mitra A, Shang E, Hon YY, AbuAsal B, Bakhaidar R, Roman YM, Bhattacharya I, Cloyd J, Patel M, Kartha RV, Younis IR. Getting the Dose Right in Drug Development for Rare Diseases: Barriers and Enablers. Clin Pharmacol Ther 2024. [PMID: 39148459 DOI: 10.1002/cpt.3407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 07/23/2024] [Indexed: 08/17/2024]
Abstract
In the relentless pursuit of optimizing drug development, the intricate process of determining the ideal dosage unfolds. This involves "dose-finding" studies, crucial for providing insights into subsequent registration trials. However, the challenges intensify when tackling rare diseases. The complexity arises from poorly understood pathophysiologies, scarcity of appropriate animal models, and limited natural history understanding. The inherent heterogeneity, coupled with challenges in defining clinical end points, poses substantial challenges, hindering the utility of available data. The small affected population, low disease awareness, and restricted healthcare access compound the difficulty in conducting dose-finding studies. This white paper delves into critical dose selection aspects, focusing on key therapeutic areas, such as oncology, neurology, hepatology, metabolic rare diseases. It also explores dose selection challenges posed by pediatric rare diseases as well as novel modalities, including enzyme replacement therapies, cell and gene therapies, and oligonucleotides. Several examples emphasize the pivotal role of clinical pharmacology in navigating the complexities associated with these diseases and emerging treatment modalities.
Collapse
Affiliation(s)
- Mariam A Ahmed
- Quantitative Clinical Pharmacology, Takeda Development Center, Cambridge, Massachusetts, USA
| | - Rajesh Krishna
- Certara Drug Development Solutions, Certara USA, Inc., Princeton, New Jersey, USA
| | - Noha Rayad
- Parexel International (MA) Corporation, Mississauga, Ontario, Canada
- Clinical Pharmacology and Safety Sciences, Alexion, AstraZeneca Rare Disease, Mississauga, ON, Canada
| | - Salwa Albusaysi
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Amitava Mitra
- Clinical Pharmacology, Kura Oncology Inc, Boston, Massachusetts, USA
| | - Elizabeth Shang
- Global Regulatory Affairs and Clinical Safety, Merck &Co., Inc., Rahway, New Jersey, USA
| | - Yuen Yi Hon
- Divsion of Rare Diseases and Medical Genetics, Office of Rare Diseases, Pediatrics, Urologic and Reproductive Medicine, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Bilal AbuAsal
- Division of Translational and Precision Medicine, Office of Clinical Pharmacology, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Rana Bakhaidar
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Youssef M Roman
- Division of Translational and Precision Medicine, Office of Clinical Pharmacology, US Food and Drug Administration, Silver Spring, Maryland, USA
| | - Indranil Bhattacharya
- Quantitative Clinical Pharmacology, Takeda Development Center, Cambridge, Massachusetts, USA
| | - James Cloyd
- Center for Orphan Drug Research, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota, USA
| | - Munjal Patel
- Quantitative Clinical Pharmacology, Takeda Development Center, Cambridge, Massachusetts, USA
| | - Reena V Kartha
- Center for Orphan Drug Research, College of Pharmacy, University of Minnesota, Minneapolis, Minnesota, USA
| | - Islam R Younis
- Quantitative Pharmacology and Pharmacometrics, Merck & Co., Inc., Rahway, New Jersey, USA
| |
Collapse
|
7
|
Ziegler A, Sæves I, Almaas R. Differences in bile acid profiles between cholestatic diseases - Development of a high throughput assay for dried bloodspots. Clin Chim Acta 2024; 562:119864. [PMID: 38992821 DOI: 10.1016/j.cca.2024.119864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
BACKGROUND Cholestasis causes accumulation of bile acids (BAs) and changes the circulating bile acid profile. Quantification of circulating BAs in dried bloodspots (DBS) may demonstrate obstruction of bile flow and altered bile acid metabolism in the liver. High sample throughput enables rapid screening of cholestatic diseases. MATERIALS AND METHODS Ultra high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) was used for optimizing separation and detection of the primary unconjugated BAs cholic acid (CA) and chenodeoxycholic acid (CDCA); the secondary unconjugated BAs ursodeoxycholic acid (UDCA), hyodeoxycholic acid (HDCA) and deoxycholic acid (DCA), as well as the glycine- and taurine-conjugated variants of CA, CDCA, DCA and UDCA. Donor blood was obtained to prepare DBS calibrators and quality controls for method development and validation. RESULTS We developed a quantitative bile acid assay with a run-time of two minutes, and one-step sample preparation of 3.2 mm DBS discs. Validation results demonstrated overall good performance and was considered fit for purpose. Children with Alagille syndrome, Aagenaes syndrome and alpha-1 antitrypsin deficiency had increased BAs in DBS from newborn screening samples compared with age matched controls, and had different bile acids profiles. CONCLUSION We propose that our high throughput assay allows bile acid profiling in DBS that can be a valuable assessment tool for early screening of cholestasis in children. Assaying BAs in dried bloodspots is key for early detection of cholestasis, and provides transferability to a newborn screening setting.
Collapse
Affiliation(s)
- Anders Ziegler
- Department of Pediatric Research, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway; Department of Newborn Screening, Oslo University Hospital, Forskningsveien 2B, 0373 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Ingjerd Sæves
- Department of Newborn Screening, Oslo University Hospital, Forskningsveien 2B, 0373 Oslo, Norway
| | - Runar Almaas
- Department of Pediatric Research, Oslo University Hospital, Sognsvannsveien 20, 0372 Oslo, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.
| |
Collapse
|
8
|
Jarasvaraparn C, Rodrigo M, Hartley C, Karnsakul W. Exploring odevixibat's efficacy in alagille syndrome: insights from recent clinical trials and IBAT inhibitor experiences. Expert Opin Pharmacother 2024; 25:1647-1655. [PMID: 39155775 DOI: 10.1080/14656566.2024.2392873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 08/09/2024] [Accepted: 08/12/2024] [Indexed: 08/20/2024]
Abstract
INTRODUCTION Alagille syndrome (ALGS) is a rare, genetic, multisystem disorder commonly associated with cholestatic liver disease; patients with ALGS may experience elevated serum bile acids and severe pruritus with associated impaired sleep. The ileal bile acid transporter (IBAT) is located on the luminal surface of enterocytes in the terminal ileum; this transport protein mediates resorption of conjugated bile acids for recirculation back to the liver. Inhibition of IBAT disrupts the enterohepatic circulation and leads to fecal elimination of bile acids. AREAS COVERED Here, the role of odevixibat as a novel, nonsurgical approach to interrupting the enterohepatic circulation from the intestine by inhibition of IBAT is reviewed, specifically in reference to currently available data on pharmacologic IBAT inhibition. IBAT inhibition has been shown to reduce serum bile acids and pruritus in trials of cholestatic liver diseases in children including ALGS. EXPERT OPINION Odevixibat or IBAT inhibitor should be considered as a first-line treatment for ALGS to improve pruritis, quality of life and liver-related outcomes including absence of liver transplant, surgical biliary diversion, hepatic decompensation, and death.
Collapse
Affiliation(s)
- Chaowapong Jarasvaraparn
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Minna Rodrigo
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| | | | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Maryland School of Medicine, Baltimore, MD, USA
| |
Collapse
|
9
|
Verkade HJ, Felzen A, Keitel V, Thompson R, Gonzales E, Strnad P, Kamath B, van Mil S. EASL Clinical Practice Guidelines on genetic cholestatic liver diseases. J Hepatol 2024; 81:303-325. [PMID: 38851996 DOI: 10.1016/j.jhep.2024.04.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Accepted: 04/05/2024] [Indexed: 06/10/2024]
Abstract
Genetic cholestatic liver diseases are caused by (often rare) mutations in a multitude of different genes. While these diseases differ in pathobiology, clinical presentation and prognosis, they do have several commonalities due to their cholestatic nature. These Clinical Practice Guidelines (CPGs) offer a general approach to genetic testing and management of cholestatic pruritus, while exploring diagnostic and treatment approaches for a subset of genetic cholestatic liver diseases in depth. An expert panel appointed by the European Association for the Study of the Liver has created recommendations regarding diagnosis and treatment, based on the best evidence currently available in the fields of paediatric and adult hepatology, as well as genetics. The management of these diseases generally takes place in a tertiary referral centre, in order to provide up-to-date approaches and expertise. These CPGs are intended to support hepatologists (for paediatric and adult patients), residents and other healthcare professionals involved in the management of these patients with concrete recommendations based on currently available evidence or, if not available, on expert opinion.
Collapse
|
10
|
Düll MM, Kremer AE. [Recommended diagnostics for pruritus affecting primary non-lesional skin]. DERMATOLOGIE (HEIDELBERG, GERMANY) 2024; 75:597-605. [PMID: 38940941 PMCID: PMC11300620 DOI: 10.1007/s00105-024-05380-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/04/2024] [Indexed: 06/29/2024]
Abstract
BACKGROUND Chronic pruritus affecting primary non-lesional skin (CPNL) manifests as a common symptom across a spectrum of diseases spanning various medical specialties. Given the diverse etiological factors involved, diagnosing the underlying condition poses a significant challenge. OBJECTIVES To provide a comprehensive overview of clinical, laboratory, and imaging diagnostics for CPNL. MATERIALS AND METHODS A thorough literature search on the diagnostics of chronic pruritus was conducted using PubMed with specific keywords "chronic pruritus AND non-lesional skin", "chronic itch AND non-lesional skin", "chronic pruritus AND diagnostics", "chronic itch AND diagnostics", "CKD-aP", "hepatic pruritus", "cholestatic pruritus", and "myeloproliferative neoplasms AND pruritus". RESULTS A systematic diagnostic approach is recommended for patients with CPNL, guided by the prevalence of pruritus-associated diseases. Initial basic diagnostics facilitate a cost-effective and focused evaluation during the initial medical assessment. Information pertaining to underlying diseases can be further refined through specialized diagnostic procedures. CONCLUSIONS CPNL often presents a diagnostic dilemma. Adopting a stepwise diagnostic strategy facilitates the identification of underlying etiologies, which is crucial for recognizing diseases and administering pruritus-specific pharmacotherapy.
Collapse
Affiliation(s)
- M M Düll
- Medizinische Klinik 1, Gastroenterologie, Pneumologie, Endokrinologie, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - A E Kremer
- Medizinische Klinik 1, Gastroenterologie, Pneumologie, Endokrinologie, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland.
- Klinik für Gastroenterologie und Hepatologie, UniversitätsSpital Zürich, Universität Zürich, Rämistr. 100, 8091, Zürich, Schweiz.
| |
Collapse
|
11
|
Sutton H, Sokol RJ, Kamath BM. IBAT inhibitors in pediatric cholestatic liver diseases: Transformation on the horizon? Hepatology 2024:01515467-990000000-00979. [PMID: 39052914 DOI: 10.1097/hep.0000000000001032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Accepted: 07/08/2024] [Indexed: 07/27/2024]
Abstract
Historically, the therapeutic options available to hepatologists managing cholestasis have been limited. Apart from bile acid--binding resins and the choleretic ursodeoxycholic acid, the medical management of cholestasis in children has been predominately focused on managing the complications of cholestasis, namely pruritus, malnutrition, fat-soluble vitamin deficiencies, and portal hypertension. As such, invasive surgical procedures such as biliary diversion and liver transplantation may become the only options for progressive and unremitting cases of cholestasis. Particularly in the pediatric population, where debilitating pruritus is a common indication for a liver transplant, effective anti-cholestatic medications have the potential to prolong native liver survival without the need for biliary diversion. Ileal bile acid transporter (IBAT) inhibitors are a relatively new class of drugs which that target the ileal re-uptake of bile acids, thus interrupting the enterohepatic circulation and reducing the total bile acid pool size and exposure of the liver. Oral, minimally absorbed IBAT inhibitors have been demonstrated to reduce serum bile acid levels and pruritus with a minimal side effect profile in clinical trials in Alagille Ssyndrome and progressive familial intrahepatic cholestasis, leading to FDA and EMA approval. The indications for IBAT inhibitors will likely expand in the coming years as clinical trials in other adult and pediatric cholestatic conditions are ongoing. This review will summarize the published clinical and pre-clinical data on IBAT inhibitors and offer providers guidance on their practical use.
Collapse
Affiliation(s)
- Harry Sutton
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
| | - Ronald J Sokol
- Department of Pediatrics, Section of Pediatric Gastroenterology, Hepatology and Nutrition, University of Colorado School of Medicine and Children's Hospital Colorado, Aurora, Colorado, USA
| | - Binita M Kamath
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| |
Collapse
|
12
|
Sun D, Xie C, Zhao Y, Liao J, Li S, Zhang Y, Wang D, Hua K, Gu Y, Du J, Huang G, Huang J. The gut microbiota-bile acid axis in cholestatic liver disease. Mol Med 2024; 30:104. [PMID: 39030473 PMCID: PMC11265038 DOI: 10.1186/s10020-024-00830-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 05/07/2024] [Indexed: 07/21/2024] Open
Abstract
Cholestatic liver diseases (CLD) are characterized by impaired normal bile flow, culminating in excessive accumulation of toxic bile acids. The majority of patients with CLD ultimately progress to liver cirrhosis and hepatic failure, necessitating liver transplantation due to the lack of effective treatment. Recent investigations have underscored the pivotal role of the gut microbiota-bile acid axis in the progression of hepatic fibrosis via various pathways. The obstruction of bile drainage can induce gut microbiota dysbiosis and disrupt the intestinal mucosal barrier, leading to bacteria translocation. The microbial translocation activates the immune response and promotes liver fibrosis progression. The identification of therapeutic targets for modulating the gut microbiota-bile acid axis represents a promising strategy to ameliorate or perhaps reverse liver fibrosis in CLD. This review focuses on the mechanisms in the gut microbiota-bile acids axis in CLD and highlights potential therapeutic targets, aiming to lay a foundation for innovative treatment approaches.
Collapse
Affiliation(s)
- Dayan Sun
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Chuanping Xie
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yong Zhao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Junmin Liao
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Shuangshuang Li
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yanan Zhang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Dingding Wang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Kaiyun Hua
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Yichao Gu
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Jingbin Du
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China
| | - Guoxian Huang
- Department of Pediatric Surgery, Women and Children's Hospital, School of Medicine, Xiamen University, Xiamen, Fujian, 361000, China
| | - Jinshi Huang
- Department of Neonatal Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, No. 56 Nalishi Road, Xicheng District, Beijing, 100045, China.
| |
Collapse
|
13
|
Tam PKH, Wells RG, Tang CSM, Lui VCH, Hukkinen M, Luque CD, De Coppi P, Mack CL, Pakarinen M, Davenport M. Biliary atresia. Nat Rev Dis Primers 2024; 10:47. [PMID: 38992031 DOI: 10.1038/s41572-024-00533-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/10/2024] [Indexed: 07/13/2024]
Abstract
Biliary atresia (BA) is a progressive inflammatory fibrosclerosing disease of the biliary system and a major cause of neonatal cholestasis. It affects 1:5,000-20,000 live births, with the highest incidence in Asia. The pathogenesis is still unknown, but emerging research suggests a role for ciliary dysfunction, redox stress and hypoxia. The study of the underlying mechanisms can be conceptualized along the likely prenatal timing of an initial insult and the distinction between the injury and prenatal and postnatal responses to injury. Although still speculative, these emerging concepts, new diagnostic tools and early diagnosis might enable neoadjuvant therapy (possibly aimed at oxidative stress) before a Kasai portoenterostomy (KPE). This is particularly important, as timely KPE restores bile flow in only 50-75% of patients of whom many subsequently develop cholangitis, portal hypertension and progressive fibrosis; 60-75% of patients require liver transplantation by the age of 18 years. Early diagnosis, multidisciplinary management, centralization of surgery and optimized interventions for complications after KPE lead to better survival. Postoperative corticosteroid use has shown benefits, whereas the role of other adjuvant therapies remains to be evaluated. Continued research to better understand disease mechanisms is necessary to develop innovative treatments, including adjuvant therapies targeting the immune response, regenerative medicine approaches and new clinical tests to improve patient outcomes.
Collapse
Affiliation(s)
- Paul K H Tam
- Medical Sciences Division, Macau University of Science and Technology, Macau, China.
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
| | - Rebecca G Wells
- Division of Gastroenterology and Hepatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Clara S M Tang
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Dr. Li Dak-Sum Research Centre, The University of Hong Kong, Hong Kong SAR, China
| | - Vincent C H Lui
- Department of Surgery, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Dr. Li Dak-Sum Research Centre, The University of Hong Kong, Hong Kong SAR, China
| | - Maria Hukkinen
- Section of Paediatric Surgery, Paediatric Liver and Gut Research Group, New Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Carlos D Luque
- Hospital de Niños Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Paolo De Coppi
- NIHR Biomedical Research Centre, Great Ormond Street Hospital for Children NHS Foundation Trust and Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Cara L Mack
- Department of Paediatrics, Division of Paediatric Gastroenterology, Hepatology and Nutrition, Medical College of Wisconsin, Children's Wisconsin, Milwaukee, WI, USA
| | - Mikko Pakarinen
- Section of Paediatric Surgery, Paediatric Liver and Gut Research Group, New Children's Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Mark Davenport
- Department of Paediatric Surgery, King's College Hospital, London, UK
| |
Collapse
|
14
|
Miethke AG, Moukarzel A, Porta G, Covarrubias Esquer J, Czubkowski P, Ordonez F, Mosca A, Aqul AA, Squires RH, Sokal E, D'Agostino D, Baumann U, D'Antiga L, Kasi N, Laborde N, Arikan C, Lin CH, Gilmour S, Mittal N, Chiou FK, Horslen SP, Huber WD, Jaecklin T, Nunes T, Lascau A, Longpre L, Mogul DB, Garner W, Vig P, Hupertz VF, Gonzalez-Peralta RP, Ekong U, Hartley J, Laverdure N, Ovchinsky N, Thompson RJ. Maralixibat in progressive familial intrahepatic cholestasis (MARCH-PFIC): a multicentre, randomised, double-blind, placebo-controlled, phase 3 trial. Lancet Gastroenterol Hepatol 2024; 9:620-631. [PMID: 38723644 DOI: 10.1016/s2468-1253(24)00080-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/08/2024] [Accepted: 03/12/2024] [Indexed: 06/15/2024]
Abstract
BACKGROUND Progressive familial intrahepatic cholestasis (PFIC) is a group of autosomal recessive disorders, the most prevalent being BSEP deficiency, resulting in disrupted bile formation, cholestasis, and pruritus. Building on a previous phase 2 study, we aimed to evaluate the efficacy and safety of maralixibat-an ileal bile acid transporter inhibitor-in participants with all types of PFIC. METHODS MARCH-PFIC was a multicentre, randomised, double-blind, placebo-controlled, phase 3 study conducted in 29 community and hospital centres across 16 countries in Europe, the Americas, and Asia. We recruited participants aged 1-17 years with PFIC with persistent pruritus (>6 months; average of ≥1·5 on morning Itch-Reported Outcome [Observer; ItchRO(Obs)] during the last 4 weeks of screening) and biochemical abnormalities or pathological evidence of progressive liver disease, or both. We defined three analysis cohorts. The BSEP (or primary) cohort included only those with biallelic, non-truncated BSEP deficiency without low or fluctuating serum bile acids or previous biliary surgery. The all-PFIC cohort combined the BSEP cohort with participants with biallelic FIC1, MDR3, TJP2, or MYO5B deficiencies without previous surgery but regardless of bile acids. The full cohort had no exclusions. Participants were randomly assigned (1:1) to receive oral maralixibat (starting dose 142·5 μg/kg, then escalated to 570 μg/kg) or placebo twice daily for 26 weeks. The primary endpoint was the mean change in average morning ItchRO(Obs) severity score between baseline and weeks 15-26 in the BSEP cohort. The key secondary efficacy endpoint was the mean change in total serum bile acids between baseline and the average of weeks 18, 22, and 26 in the BSEP cohort. Efficacy analyses were done in the intention-to-treat population (all those randomly assigned) and safety analyses were done in all participants who received at least one dose of study drug. This completed trial is registered with ClinicalTrials.gov, NCT03905330, and EudraCT, 2019-001211-22. FINDINGS Between July 9, 2019, and March 4, 2022, 125 patients were screened, of whom 93 were randomly assigned to maralixibat (n=47; 14 in the BSEP cohort and 33 in the all-PFIC cohort) or placebo (n=46; 17 in the BSEP cohort and 31 in the all-PFIC cohort), received at least one dose of study drug, and were included in the intention-to-treat and safety populations. The median age was 3·0 years (IQR 2·0-7·0) and 51 (55%) of 93 participants were female and 42 (45%) were male. In the BSEP cohort, least-squares mean change from baseline in morning ItchRO(Obs) was -1·7 (95% CI -2·3 to -1·2) with maralixibat versus -0·6 (-1·1 to -0·1) with placebo, with a significant between-group difference of -1·1 (95% CI -1·8 to -0·3; p=0·0063). Least-squares mean change from baseline in total serum bile acids was -176 μmol/L (95% CI -257 to -94) for maralixibat versus 11 μmol/L (-58 to 80) for placebo, also representing a significant difference of -187 μmol/L (95% CI -293 to -80; p=0·0013). The most common adverse event was diarrhoea (27 [57%] of 47 patients on maralixibat vs nine [20%] of 46 patients on placebo; all mild or moderate and mostly transient). There were five (11%) participants with serious treatment-emergent adverse events in the maralixibat group versus three (7%) in the placebo group. No treatment-related deaths occurred. INTERPRETATION Maralixibat improved pruritus and predictors of native liver survival in PFIC (eg, serum bile acids). Maralixibat represents a non-surgical, pharmacological option to interrupt the enterohepatic circulation and improve the standard of care in patients with PFIC. FUNDING Mirum Pharmaceuticals.
Collapse
Affiliation(s)
- Alexander G Miethke
- UC Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
| | - Adib Moukarzel
- Pediatric Gastroenterology, Hepatology and Nutrition, Hotel Dieu De France Saint Joseph University Hospital, Beirut, Lebanon
| | - Gilda Porta
- Gastroenterology and Pediatrics, Hospital Sirio Libanes, Sao Paulo, Brazil
| | | | - Piotr Czubkowski
- Department of Gastroenterology, Hepatology, and Immunology, The Children's Memorial Health Institute, Warsaw, Poland
| | - Felipe Ordonez
- Pediatric Gastroenterology, Cardioinfantil Foundation-Lacardio, Bogota, Colombia
| | - Antonella Mosca
- Transplant Department, Ospedale Pediatrico Bambino Gesu Irccs, Lazio, Italy
| | - Amal A Aqul
- Pediatric Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Robert H Squires
- Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Etienne Sokal
- Gastroenterology and Hepatology, UClouvain, Cliniques Universitaires St Luc, Brussels, Belgium
| | - Daniel D'Agostino
- Department of Pediatric Gastro-hepatology, Hospital Italiano De Buenos Aires, Buenos Aires, Argentina
| | - Ulrich Baumann
- Pediatric Gastroenterology and Hepatology, Hannover Medical School, Hannover, Germany
| | - Lorenzo D'Antiga
- Paediatric Hepatology, Gastroenterology and Transplantation, Hospital Papa Giovanni XXIII, Bergamo, Italy; Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Nagraj Kasi
- Pediatric Gastroenterology, Medical University of South Carolina, Charleston, SC, USA
| | - Nolwenn Laborde
- Pediatric Hereditary Metabolic Diseases, Hôpital Des Enfants-CHU Toulouse, Toulouse, France
| | - Cigdem Arikan
- Pediatrics Department, Koc University School of Medicine, Istanbul, Turkey
| | - Chuan-Hao Lin
- Gastroenterology, Hepatology and Nutrition, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Susan Gilmour
- Department of Pediatrics, University of Alberta, Edmonton, AB, Canada
| | - Naveen Mittal
- Department of Pediatrics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Fang Kuan Chiou
- Paediatric Gastroenterology, Hepatology and Nutrition, KK Women's and Children's Hospital, Singapore
| | - Simon P Horslen
- Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Wolf-Dietrich Huber
- Department of Pediatric Nephrology and Gastroentereology, Medical University of Vienna, Vienna, Austria
| | | | - Tiago Nunes
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Anamaria Lascau
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Lara Longpre
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Douglas B Mogul
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Will Garner
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Pamela Vig
- Clinical Development, Scientific Affairs and Engagement, Biometrics, and Research Departments, Mirum Pharmaceuticals, Foster City, CA, USA
| | - Vera F Hupertz
- Pediatric Gastroenterology, Hepatology, and Nutrition, Cleveland Clinic Children's, Cleveland, OH, USA
| | - Regino P Gonzalez-Peralta
- Pediatric Gastroenterology, AdventHealth for Children and AdventHealth Transplant Institute, Orlando, FL, USA
| | - Udeme Ekong
- Transplant Hepatology, Pediatric Hepatology, Medstar Georgetown Transplant Institute, Medstar Georgetown University Hospital, Washington, DC, USA
| | - Jane Hartley
- Paediatric Hepatology, Birmingham Women's and Children's Hospital, Birmingham, UK
| | - Noemie Laverdure
- Pediatric Hepatology, Gastroenterology, and Nutrition Unit, Hopital Femme Mere Enfant, Hospices Civils De Lyon, Lyon, France
| | - Nadia Ovchinsky
- Pediatric Gastroenterology and Hepatology, New York University Grossman School of Medicine, New York, NY, USA
| | - Richard J Thompson
- Department of Inflammation Biology, Institute of Liver Studies, King's College London, London, UK
| |
Collapse
|
15
|
Ovchinsky N, Aumar M, Baker A, Baumann U, Bufler P, Cananzi M, Czubkowski P, Durmaz Ö, Fischer R, Indolfi G, Karnsakul WW, Lacaille F, Lee WS, Maggiore G, Rosenthal P, Ruiz M, Sokal E, Sturm E, van der Woerd W, Verkade HJ, Wehrman A, Clemson C, Yu Q, Ni Q, Ruvido J, Manganaro S, Mattsson JP. Efficacy and safety of odevixibat in patients with Alagille syndrome (ASSERT): a phase 3, double-blind, randomised, placebo-controlled trial. Lancet Gastroenterol Hepatol 2024; 9:632-645. [PMID: 38670135 DOI: 10.1016/s2468-1253(24)00074-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND In patients with Alagille syndrome, cholestasis-associated clinical features can include high serum bile acids and severe pruritus that can necessitate liver transplantation. We aimed to evaluate the efficacy and safety of the ileal bile acid transporter inhibitor odevixibat versus placebo in patients with Alagille syndrome. METHODS The ASSERT study was a phase 3, double-blind, randomised, placebo-controlled trial that enrolled patients at 21 medical centres or hospitals in ten countries (Belgium, France, Germany, Italy, Malaysia, the Netherlands, Poland, Türkiye, the UK, and the USA). Eligible patients had a genetically confirmed diagnosis of Alagille syndrome, a history of significant pruritus, and elevated serum bile acids. Patients were randomly assigned (2:1) to receive oral odevixibat 120 μg/kg per day or placebo for 24 weeks (in a block size of six and stratified by age: <10 years and ≥10 years to <18 years) via a web-based system. Patients, clinicians, study staff, and people analysing the data were masked to treatment allocation. The primary efficacy endpoint was change in caregiver-reported scratching score (on the PRUCISION instrument; range 0-4) from baseline to weeks 21-24. The prespecified key secondary efficacy endpoint was change in serum bile acid concentration from baseline to the average of weeks 20 and 24. Outcomes were analysed in patients who received at least one dose of study drug (the full analysis set for efficacy outcomes and the safety analysis set for safety outcomes). This trial is registered on ClinicalTrials.gov (NCT04674761) and EudraCT (2020-004011-28), and is completed. FINDINGS Between Feb 26, 2021, and Sept 9, 2022, 52 patients were randomly assigned to receive odevixibat (n=35) or placebo (n=17), all of whom were included in the analysis sets. The median age was 5·5 years (IQR 3·2 to 8·9). 27 (52%) of 52 patients were male and 25 (48%) were female. The mean scratching score was elevated at baseline in both groups (2·8 [SD 0·5] for odevixibat vs 3·0 [0·6] for placebo). Mean scratching scores at weeks 21-24 were 1·1 (0·9) for odevixibat and 2·2 (1·0) for placebo, representing a least-squares (LS) mean change of -1·7 (95% CI -2·0 to -1·3) for odevixibat and -0·8 (-1·3 to -0·3) for placebo, which was significantly greater for odevixibat than for placebo (difference in LS mean change from baseline -0·9 [95% CI -1·4 to -0·3]; p=0·0024). Odevixibat also resulted in significantly greater reductions in mean serum bile acids from baseline versus placebo (237 μmol/L [SD 115] with odevixibat vs 246 μmol/L [121] with placebo) to the average of weeks 20 and 24 (149 μmol/L [102] vs 271 μmol/L [167]; LS mean change -90 μmol/L [95% CI -133 to -48] with odevixibat vs 22 μmol/L [-35 to 80] with placebo; difference in LS mean change -113 μmol/L [95% CI -179 to -47]; p=0·0012). The most common treatment-emergent adverse events were diarrhoea (ten [29%] of 35 patients in the odevixibat group vs one [6%] of 17 in the placebo group) and pyrexia (eight [23%] vs four [24%]). Seven patients had serious treatment-emergent adverse events during the treatment period: five (14%) in the odevixibat group and two (12%) in the placebo group. No patients discontinued treatment and there were no deaths. INTERPRETATION Odevixibat could be an efficacious non-surgical intervention to improve pruritus, reduce serum bile acids, and enhance the standard of care in patients with Alagille syndrome. Longer-term safety and efficacy data of odevixibat in this population are awaited from the ongoing, open-label ASSERT-EXT study. FUNDING Albireo Pharma, an Ipsen company.
Collapse
Affiliation(s)
- Nadia Ovchinsky
- Pediatric Gastroenterology and Hepatology, Hassenfeld Children's Hospital, NYU Langone, New York, NY, USA
| | - Madeleine Aumar
- Univ Lille, CHU Lille, Pediatric Gastroenterology, Hepatology, and Nutrition, Inserm U1286 Infinite, CHU Lille Pôle Enfant, Lille, France
| | - Alastair Baker
- Paediatric Liver Centre, King's College Hospital, London, UK.
| | - Ulrich Baumann
- Pediatric Gastroenterology and Hepatology, Hannover Medical School, Hannover, Germany
| | - Philip Bufler
- Department of Pediatric Gastroenterology, Nephrology, and Metabolic Diseases, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Mara Cananzi
- Pediatric Gastroenterology, Digestive Endoscopy, Hepatology, and Care of the Child With Liver Transplantation, Department of Children's and Women's Health, University Hospital of Padova, Padova, Italy
| | - Piotr Czubkowski
- Department of Gastroenterology, Hepatology, Nutritional Disorders, and Pediatrics, The Children's Memorial Health Institute, Warsaw, Poland
| | - Özlem Durmaz
- Istanbul University, Istanbul Faculty of Medicine, Istanbul, Türkiye
| | - Ryan Fischer
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Children's Mercy Hospital, Kansas City, MO, USA
| | | | - Wikrom W Karnsakul
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Florence Lacaille
- Pediatric Gastroenterology-Hepatology-Nutrition Unit, Hôpital Universitaire Necker-Enfants Malades, Paris, France
| | - Way S Lee
- Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Giuseppe Maggiore
- Hepatology, Gastroenterology, Nutrition, Digestive Endoscopy, and Liver Transplantation Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Philip Rosenthal
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of California San Francisco, San Francisco, CA, USA
| | - Mathias Ruiz
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Service d'Hépato-gastroentérologie et Nutrition Pédiatrique, Bron, France
| | - Etienne Sokal
- Université Catholique de Louvain, Cliniques St Luc, Service de Gastroentérologie et Hépatologie Pédiatrique, Brussels, Belgium
| | - Ekkehard Sturm
- Pediatric Gastroenterology and Hepatology, University Children's Hospital Tübingen, Tübingen, Germany
| | - Wendy van der Woerd
- Department of Pediatric Gastroenterology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, Netherlands
| | - Henkjan J Verkade
- Pediatric Gastroenterology and Hepatology, Department of Pediatrics, University of Groningen, Beatrix Children's Hospital and University Medical Center Groningen, Groningen, Netherlands
| | - Andrew Wehrman
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | | | | | | | | | | | | |
Collapse
|
16
|
Komaniecka N, Maroszek S, Drozdzik M, Oswald S, Drozdzik M. Transporter Proteins as Therapeutic Drug Targets-With a Focus on SGLT2 Inhibitors. Int J Mol Sci 2024; 25:6926. [PMID: 39000033 PMCID: PMC11241231 DOI: 10.3390/ijms25136926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/03/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Membrane transporters interact not only with endogenous substrates but are also engaged in the transport of xenobiotics, including drugs. While the coordinated function of uptake (solute carrier family-SLC and SLCO) and efflux (ATP-binding cassette family-ABC, multidrug and toxic compound extrusion family-MATE) transporter system allows vectorial drug transport, efflux carriers alone achieve barrier functions. The modulation of transport functions was proved to be effective in the treatment strategies of various pathological states. Sodium-glucose cotransporter-2 (SGLT2) inhibitors are the drugs most widely applied in clinical practice, especially in the treatment of diabetes mellitus and heart failure. Sodium taurocholate co-transporting polypeptide (NTCP) serves as virus particles (HBV/HDV) carrier, and inhibition of its function is applied in the treatment of hepatitis B and hepatitis D by myrcludex B. Inherited cholestatic diseases, such as Alagille syndrome (ALGS) and progressive familial intrahepatic cholestasis (PFIC) can be treated by odevixibat and maralixibat, which inhibit activity of apical sodium-dependent bile salt transporter (ASBT). Probenecid can be considered to increase uric acid excretion in the urine mainly via the inhibition of urate transporter 1 (URAT1), and due to pharmacokinetic interactions involving organic anion transporters 1 and 3 (OAT1 and OAT3), it modifies renal excretion of penicillins or ciprofloxacin as well as nephrotoxicity of cidofovir. This review discusses clinically approved drugs that affect membrane/drug transporter function.
Collapse
Affiliation(s)
- Nina Komaniecka
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, 70-111 Szczecin, Poland; (N.K.); (S.M.); (M.D.)
| | - Sonia Maroszek
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, 70-111 Szczecin, Poland; (N.K.); (S.M.); (M.D.)
| | - Maria Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, 70-111 Szczecin, Poland; (N.K.); (S.M.); (M.D.)
| | - Stefan Oswald
- Institute of Pharmacology and Toxicology, Rostock University Medical Center, 18057 Rostock, Germany;
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, 70-111 Szczecin, Poland; (N.K.); (S.M.); (M.D.)
| |
Collapse
|
17
|
von Maltzahn R, Mayo MJ, Smith HT, Thompson A, Das S, de Souza AR, Lisi E, Levy C, McLaughlin MM, Jones D. Relationship between pruritus and sleep in participants with primary biliary cholangitis in the Phase 2b GLIMMER trial. J Patient Rep Outcomes 2024; 8:60. [PMID: 38862718 PMCID: PMC11166618 DOI: 10.1186/s41687-024-00722-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 04/02/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND Cholestatic pruritus and fatigue are debilitating conditions associated with primary biliary cholangitis (PBC) and can significantly impact patients' quality of life. Pruritus in PBC often worsens at night and patients frequently report sleep disturbance, which contributes to cognitive symptoms and fatigue. Linerixibat is an ileal bile acid transporter inhibitor in clinical development for the treatment of pruritus associated with PBC and was recently assessed versus placebo in the Phase 2b GLIMMER trial. This post-hoc analysis assesses the relationship between pruritus severity and sleep disturbance in participants of GLIMMER regardless of treatment group. METHODS GLIMMER (NCT02966834), a multicenter, double-blind, randomized, placebo-controlled trial, recruited 147 patients with PBC and moderate-to-severe pruritus. Following 4 weeks single-blind placebo, patients (randomized 3:1) received linerixibat or placebo for 12 weeks (to Week 16). Participants graded their itch (twice daily) and its interference with sleep (once daily) in an electronic diary using a 0-10 numerical rating scale (NRS). Weekly and monthly itch scores were calculated as the mean of the worst daily itch score over the respective time period. At study visits, participants completed the 5-D itch scale and the PBC-40 quality of life questionnaire, both of which contain an item specific to itch-related sleep disturbance. The impact of pruritus on sleep was assessed post hoc through correlations between the changes in NRS, 5-D itch, and PBC-40. RESULTS Strong correlations were found between change from baseline in weekly itch and sleep NRS scores (r = 0.88 [95% confidence interval (CI): 0.83; 0.91]) at the end of treatment (Week 16), as well as in monthly itch and sleep NRS scores (r = 0.84 [95% CI: 0.80; 0.87]). Patients with improved weekly pruritus score severity category demonstrated reduced perceived sleep interference on average. Itch responders (≥2-point improvement in weekly itch score from baseline) displayed larger improvements in weekly sleep NRS score, 5-D itch, and PBC-40 sleep items, than itch non-responders (<2-point improvement). CONCLUSIONS A strong correlation exists between changes in pruritus severity and sleep interference in patients with PBC; pruritus reduction could generate concomitant improvement in sleep.
Collapse
Affiliation(s)
| | - Marlyn J Mayo
- University of Texas Southwestern Medical Center, Dallas, TX, USA
| | | | | | | | | | | | - Cynthia Levy
- Schiff Center for Liver Diseases, Division of Digestive Health and Liver Diseases, University of Miami, Miami, FL, USA
| | | | | |
Collapse
|
18
|
Hansen BE, Vandriel SM, Vig P, Garner W, Mogul DB, Loomes KM, Piccoli DA, Rand EB, Jankowska I, Czubkowski P, Gliwicz-Miedzińska D, Gonzales EM, Jacquemin E, Bouligand J, D’Antiga L, Nicastro E, Arnell H, Fischler B, Sokal É, Demaret T, Siew S, Stormon M, Karpen SJ, Romero R, Ebel NH, Feinstein JA, Roberts AJ, Evans HM, Sundaram SS, Chaidez A, Hardikar W, Shankar S, Fischer RT, Lacaille F, Debray D, Lin HC, Jensen MK, Jaramillo C, Karthikeyan P, Indolfi G, Verkade HJ, Larson-Nath C, Quiros-Tejeira RE, Valentino PL, Rogalidou M, Dezsőfi A, Squires JE, Schwarz K, Calvo PL, Bernabeu JQ, Zizzo AN, Nebbia G, Bulut P, Santos-Silva E, Fawaz R, Nastasio S, Karnsakul W, Tamara ML, Busoms CM, Kelly DA, Sandahl TD, Jimenez-Rivera C, Banales JM, Mujawar Q, Li LT, She H, Wang JS, Kim KM, Oh SH, Sanchez MC, Cavalieri ML, Lee WS, Hajinicolaou C, Lertudomphonwanit C, Waisbourd-Zinman O, Arikan C, Alam S, Carvalho E, Melere M, Eshun J, Önal Z, Desai DM, Wiecek S, Pinto RB, Wolters VM, Garcia J, Beretta M, Kerkar N, Brecelj J, Rock N, Lurz E, Blondet N, Shah U, Thompson RJ, Kamath BM. Event-free survival of maralixibat-treated patients with Alagille syndrome compared to a real-world cohort from GALA. Hepatology 2024; 79:1279-1292. [PMID: 38146932 PMCID: PMC11095900 DOI: 10.1097/hep.0000000000000727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/18/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND AND AIMS Alagille syndrome (ALGS) is characterized by chronic cholestasis with associated pruritus and extrahepatic anomalies. Maralixibat, an ileal bile acid transporter inhibitor, is an approved pharmacologic therapy for cholestatic pruritus in ALGS. Since long-term placebo-controlled studies are not feasible or ethical in children with rare diseases, a novel approach was taken comparing 6-year outcomes from maralixibat trials with an aligned and harmonized natural history cohort from the G lobal AL agille A lliance (GALA) study. APPROACH AND RESULTS Maralixibat trials comprise 84 patients with ALGS with up to 6 years of treatment. GALA contains retrospective data from 1438 participants. GALA was filtered to align with key maralixibat eligibility criteria, yielding 469 participants. Serum bile acids could not be included in the GALA filtering criteria as these are not routinely performed in clinical practice. Index time was determined through maximum likelihood estimation in an effort to align the disease severity between the two cohorts with the initiation of maralixibat. Event-free survival, defined as the time to first event of manifestations of portal hypertension (variceal bleeding, ascites requiring therapy), surgical biliary diversion, liver transplant, or death, was analyzed by Cox proportional hazards methods. Sensitivity analyses and adjustments for covariates were applied. Age, total bilirubin, gamma-glutamyl transferase, and alanine aminotransferase were balanced between groups with no statistical differences. Event-free survival in the maralixibat cohort was significantly better than the GALA cohort (HR, 0.305; 95% CI, 0.189-0.491; p <0.0001). Multiple sensitivity and subgroup analyses (including serum bile acid availability) showed similar findings. CONCLUSIONS This study demonstrates a novel application of a robust statistical method to evaluate outcomes in long-term intervention studies where placebo comparisons are not feasible, providing wide application for rare diseases. This comparison with real-world natural history data suggests that maralixibat improves event-free survival in patients with ALGS.
Collapse
Affiliation(s)
- Bettina E. Hansen
- Department of Hepatology, Toronto General Hospital University Health Network, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Shannon M. Vandriel
- Department of Paediatrics, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
| | - Pamela Vig
- Department of Scientific and Medical Affairs, Mirum Pharmaceuticals, Inc., Foster City, California, USA
| | - Will Garner
- Department of Scientific and Medical Affairs, Mirum Pharmaceuticals, Inc., Foster City, California, USA
| | - Douglas B. Mogul
- Department of Scientific and Medical Affairs, Mirum Pharmaceuticals, Inc., Foster City, California, USA
| | - Kathleen M. Loomes
- Department of Pathology and Laboratory Medicine, Division of Gastroenterology, Hepatology and Nutrition, The Children’s Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - David A. Piccoli
- Department of Pathology and Laboratory Medicine, Division of Gastroenterology, Hepatology and Nutrition, The Children’s Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Elizabeth B. Rand
- Department of Pathology and Laboratory Medicine, Division of Gastroenterology, Hepatology and Nutrition, The Children’s Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Irena Jankowska
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Piotr Czubkowski
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Dorota Gliwicz-Miedzińska
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children’s Memorial Health Institute, Warsaw, Poland
| | - Emmanuel M. Gonzales
- Department of Pediatric Hepatology and Liver Transplantation, Service d’Hépatologie et de Transplantation Hépatique Pédiatriques, Centre de Référence de l’Atrésie des Voies Biliaires et des Cholestases Génétiques (AVB-CG), FSMR FILFOIE, ERN RARE LIVER, Hôpital Bicêtre, AP-HP, Faculté de Médecine Paris-Saclay, Le Kremlin-Bicêtre, and Inserm U1193, Hépatinov, Université Paris-Saclay, Orsay, France
| | - Emmanuel Jacquemin
- Department of Pediatric Hepatology and Liver Transplantation, Service d’Hépatologie et de Transplantation Hépatique Pédiatriques, Centre de Référence de l’Atrésie des Voies Biliaires et des Cholestases Génétiques (AVB-CG), FSMR FILFOIE, ERN RARE LIVER, Hôpital Bicêtre, AP-HP, Faculté de Médecine Paris-Saclay, Le Kremlin-Bicêtre, and Inserm U1193, Hépatinov, Université Paris-Saclay, Orsay, France
| | - Jérôme Bouligand
- Department of Molecular Genetics, Pharmacogenetics and Hormonology, Service de Génétique Moléculaire, Pharmacogénétique et Hormonologie, Hôpitaux Universitaires Paris-Saclay, Assistance PubliqueHôpitaux de Paris, Centre Hospitalier Universitaire de Bicêtre, Le Kremlin-Bicêtre, France
| | - Lorenzo D’Antiga
- Department of Pediatric Hepatology, Gastroenterology, and Transplantation, Ospedale Papa Giovanni XXIII, Pediatric Hepatology, Gastroenterology and Transplantation, Bergamo, Italy
| | - Emanuele Nicastro
- Department of Pediatric Hepatology, Gastroenterology, and Transplantation, Ospedale Papa Giovanni XXIII, Pediatric Hepatology, Gastroenterology and Transplantation, Bergamo, Italy
| | - Henrik Arnell
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren Children’s Hospital, Karolinska University Hospital and Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
| | - Björn Fischler
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren Children’s Hospital, Karolinska University Hospital and CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Étienne Sokal
- Department of Pediatric GI and Hepatology, Cliniques Universitaires Saint-Luc, Service De Gastroentérologie & Hépatologie Pédiatrique, Brussels, Belgium
| | - Tanguy Demaret
- Department of Pediatric GI and Hepatology, Cliniques Universitaires Saint-Luc, Service De Gastroentérologie & Hépatologie Pédiatrique, Brussels, Belgium
| | - Susan Siew
- Department of Gastroenterology, The Children’s Hospital at Westmead, Sydney, New South Wales, Australia
| | - Michael Stormon
- Department of Gastroenterology, The Children’s Hospital at Westmead, Sydney, New South Wales, Australia
| | - Saul J. Karpen
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology & Nutrition, Children’s Healthcare of Atlanta & Emory University School of Medicine, Atlanta, Georgia, USA
| | - Rene Romero
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology & Nutrition, Children’s Healthcare of Atlanta & Emory University School of Medicine, Atlanta, Georgia, USA
| | - Noelle H. Ebel
- Department of Pediatrics, Division of Gastroenterology, Stanford University School of Medicine, Palo Alto, California, USA
| | - Jeffrey A. Feinstein
- Department of Pediatrics (Cardiology), Stanford University School of Medicine, Lucile Packard Children’s Hospital, Palo Alto, California, USA
| | - Amin J. Roberts
- Starship Child Health, Department of Paediatric Gastroenterology, Auckland, New Zealand
| | - Helen M. Evans
- Starship Child Health, Department of Paediatric Gastroenterology, Auckland, New Zealand
| | - Shikha S. Sundaram
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics and the Digestive Health Institute, Children’s Hospital of Colorado and University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Alexander Chaidez
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics and the Digestive Health Institute, Children’s Hospital of Colorado and University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Winita Hardikar
- Department of Gastroenterology and Clinical Nutrition, Royal Children’s Hospital, Melbourne, Victoria, Australia
| | - Sahana Shankar
- Department of Pediatrics, Mazumdar Shaw Medical Center, Narayana Health, Bangalore, Karnataka, India
| | - Ryan T. Fischer
- Department of Gastroenterology, Children’s Mercy Kansas City, Section of Hepatology, Kansas City, Missouri, USA
| | - Florence Lacaille
- Department of Pediatric Gastroenterology and Nutrition, Necker-Enfants Malades Hospital, University of Paris, Paris, France
| | - Dominique Debray
- Department of Pediatric Gastroenterology and Hepatology, Pediatric Liver Unit, National Reference Centre for Rare Pediatric Liver Diseases (Biliary Atresia and Genetic Cholestasis), FILFOIE, ERN RARE LIVER, Necker-Enfants Malades Hospital, University of Paris, Paris, France
| | - Henry C. Lin
- Department of Pediatrics, Division of Pediatric Gastroenterology, Oregon Health and Science University, Portland, Oregon, USA
| | - M. Kyle Jensen
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Primary Children’s Hospital, University of Utah, Salt Lake City, Utah, USA
| | - Catalina Jaramillo
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, Primary Children’s Hospital, University of Utah, Salt Lake City, Utah, USA
| | - Palaniswamy Karthikeyan
- Department of Pediatrics, Leeds Teaching Hospitals NHS Trust, Leeds Children’s Hospital, Leeds, UK
| | - Giuseppe Indolfi
- Department Neurofarba, University of Florence and Meyer Children’s University Hospital, Paediatric and Liver Unit, Florence, Italy
| | - Henkjan J. Verkade
- Department of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, Groningen, The Netherlands
| | - Catherine Larson-Nath
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, Minnesota, USA
| | - Ruben E. Quiros-Tejeira
- Department of Pediatrics, Children’s Hospital & Medical Center and University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Pamela L. Valentino
- Department of Pediatrics, Gastroenterology & Hepatology Division, University of Washington, Seattle Children’s Hospital, Seattle, Washington, USA
| | - Maria Rogalidou
- First Department of Pediatrics, Division of Gastroenterology & Hepatology, “Agia Sofia” Children’s Hospital, University of Athens, Athens, Greece
| | - Antal Dezsőfi
- First Department of Paediatrics, Semmelweis University, Budapest, Hungary
| | - James E. Squires
- Department of Pediatrics, Division of Pediatric Gastroenterology and Hepatology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Kathleen Schwarz
- Department of Pediatrics, Division of Pediatric Gastroenterology, Rady Children’s Hospital San Diego, University of California San Diego, San Diego, California, USA
| | - Pier Luigi Calvo
- Department of Pediatrics, Pediatric Gastroenterology Unit, Regina Margherita Children’s Hospital, Azienda Ospedaliera-Universitaria Citta’ della Salute e della Scienza, Turin, Italy
| | - Jesus Quintero Bernabeu
- Pediatric Hepatology and Liver Transplant Department, Hospital Universitari Vall d’Hebron, Barcelona, Spain
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute—Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
| | - Andréanne N. Zizzo
- Department of Paediatrics, Division of Paediatric Gastroenterology and Hepatology, London Health Sciences Centre, Children’s Hospital, Western University, London, Ontario, Canada
| | - Gabriella Nebbia
- Department of Pediatric Hepatology, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Servizio di Epatologia Pediatrica, Milan, Italy
| | - Pinar Bulut
- Department of Pediatrics, Division of Pediatric Gastroenterology and Hepatology, Phoenix Children’s Hospital, Phoenix, Arizona, USA
| | - Ermelinda Santos-Silva
- Department of Pediatrics, Centro Hospitalar Universitário Do Porto, Pediatric Gastroenterology Unit, Porto, Portugal
| | - Rima Fawaz
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Silvia Nastasio
- Department of Pediatrics, Division of Gastroenterology, Hepatology, & Nutrition, Boston Children’s Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Wikrom Karnsakul
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - María Legarda Tamara
- Department of Pediatrics, Paediatric Gastroenterology Unit, Cruces University Hospital, Bilbao, Spain
| | - Cristina Molera Busoms
- Department of Gastroenterology, Hepatology and Nutrition, Pediatric Gastroenterology Hepatology and Nutrition Unit, Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Deirdre A. Kelly
- Department of Paediatric Hepatology, Liver Unit, Birmingham Women’s & Children’s Hospital NHS Trust and University of Birmingham, Birmingham, UK
| | | | - Carolina Jimenez-Rivera
- Department of Paediatrics, Division of Gastroenterology, Hepatology and Nutrition, Children’s Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Jesus M. Banales
- Department of Hepatology and Gastroenterology, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Biodonostia Health Research Institute—Donostia University Hospital, Universidad del País Vasco (UPV/EHU), San Sebastián, Spain
| | - Quais Mujawar
- Section of Pediatric Gastroenterology, Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Li-Ting Li
- Department of Pediatric Gastroenterology, Children’s Hospital of Fudan University, The Center for Pediatric Liver Diseases, Shanghai, China
| | - Huiyu She
- Department of Pediatric Gastroenterology, Children’s Hospital of Fudan University, The Center for Pediatric Liver Diseases, Shanghai, China
| | - Jian-She Wang
- Department of Pediatric Gastroenterology, Children’s Hospital of Fudan University, The Center for Pediatric Liver Diseases, Shanghai, China
| | - Kyung Mo Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul, South Korea
| | - Seak Hee Oh
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children’s Hospital, Seoul, South Korea
| | - Maria Camila Sanchez
- Department of Pediatric Gastroenterology, Pediatric Gastroenterology and Hepatology Division, Hospital Italiano Buenos Aires, Buenos Aires, Argentina
| | - Maria Lorena Cavalieri
- Department of Pediatric Gastroenterology, Pediatric Gastroenterology and Hepatology Division, Hospital Italiano Buenos Aires, Buenos Aires, Argentina
| | - Way Seah Lee
- Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Christina Hajinicolaou
- Department of Paediatrics and Child Health, Division of Paediatric Gastroenterology, Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa
| | - Chatmanee Lertudomphonwanit
- Department of Pediatrics, Division of Gastroenterology, Ramathibodi Hospital Mahidol University, Bangkok, Thailand
| | - Orith Waisbourd-Zinman
- Department of Pediatrics, Schneider Children’s Medical Center of Israel, Institute of Gastroenterology, Nutrition and Liver Diseases, Petah Tikva, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Cigdem Arikan
- Department of Pediatric Gastroenterology and Organ Transplant, Koç University School of Medicine, Istanbul, Turkey
| | - Seema Alam
- Department of Pediatric Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Elisa Carvalho
- Pediatric Gastroenterology Department, Hospital de Base do Distrito Federal, Hospital da Criança de Brasília, Centro Universitário de Brasília, Brasília, DF, Brazil
| | - Melina Melere
- Departamento de Gastroenterologia e Hepatologia Pediátrica, Pediatric Gastroenterology Service, Hospital da Criança Santo Antônio, Universidade Federal de Ciências da Saúde de Porto Alegre, Complexo Hospitalar Santa Casa, Porto Alegre, RS, Brazil
| | - John Eshun
- Department of Pediatric Gastroenterology, Le Bonheur Children’s Hospital and The University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Zerrin Önal
- Pediatric Gastroenterology, Hepatology and Nutrition Department, Istanbul University Istanbul Medical Faculty, Istanbul, Turkey
| | - Dev M. Desai
- Solid Organ Transplant Department, Children’s Health—Children’s Medical Center, Dallas, Texas, USA
| | - Sabina Wiecek
- Department of Pediatrics, Medical University of Silesia in Katowice, Katowice, Poland
| | - Raquel Borges Pinto
- Department of Pediatric Gastroenterology, Division of Pediatric Gastroenterology of Hospital da Criança Conceição do Grupo Hospitalar Conceição, Porto Alegre, RS, Brazil
| | - Victorien M. Wolters
- Department of Pediatric Gastroenterology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jennifer Garcia
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition/Miami Transplant Institute, University of Miami, Miami, Florida, USA
| | - Marisa Beretta
- Department of Pediatric Intensive Care, Wits Donald Gordon Medical Centre, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Nanda Kerkar
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Rochester Medical Center, Rochester, New York, USA
| | - Jernej Brecelj
- Pediatric Gastroenterology, Hepatology and Nutrition, and Department of Pediatrics, Faculty of Medicine, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Nathalie Rock
- Department of Pediatrics, Gynecology, and Obstetrics, Division of Pediatric Specialties, Swiss Pediatric Liver Center, University Hospitals Geneva and University of Geneva, Geneva, Switzerland
| | - Eberhard Lurz
- Department of Pediatrics, Dr. von Hauner Children’s Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Niviann Blondet
- Department of Pediatrics, Gastroenterology & Hepatology Division, University of Washington, Seattle Children’s Hospital, Seattle, Washington, USA
| | - Uzma Shah
- Department of Pediatrics, Harvard Medical School, Massachusetts General Hospital for Children, Boston, Massachusetts, USA
| | - Richard J. Thompson
- Department of Inflammation Biology, Institute of Liver Studies, King’s College London, London, UK
| | - Binita M. Kamath
- Department of Paediatrics, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
19
|
Gairola A, Wetten A, Dyson J. Sodium/bile acid co-transporter inhibitors currently in preclinical or early clinical development for the treatment of primary biliary cholangitis. Expert Opin Investig Drugs 2024; 33:485-495. [PMID: 38613839 DOI: 10.1080/13543784.2024.2343789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/12/2024] [Indexed: 04/15/2024]
Abstract
INTRODUCTION Pruritus is common and often undertreated in patients with primary biliary cholangitis (PBC). Existing treatments largely have an aging and low-quality evidence base, and studies included only small numbers of patients. More recent data that has added to our understanding of pruritus treatments has often come from clinical trials where itching was a secondary outcome measure in a trial designed primarily to assess disease-modifying agents. This area represents an unmet clinical need in the management of PBC. AREAS COVERED In this manuscript, we first summarize the proposed mechanisms for PBC-related pruritus and the current treatment paradigm. We then present an appraisal of the existing pre-clinical and clinical evidence for the use of ileal bile acid transporter inhibitors (IBATis) for this indication in PBC patients. EXPERT OPINION Evidence for the efficacy of IBATis is promising but limited by the currently available volume of data. Furthermore, larger clinical trials with long-term data on efficacy, safety and tolerability are needed to confirm the role of using IBATis in clinical practice and their place on the itch treatment ladder. Additional focus should also be given to exploring the disease-modifying potential of IBATis in PBC.
Collapse
Affiliation(s)
- Abhishek Gairola
- Liver Unit, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
| | - Aaron Wetten
- Liver Unit, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle, UK
| | - Jessica Dyson
- Liver Unit, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle, UK
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle, UK
| |
Collapse
|
20
|
Kharve K, Engley AS, Paine MF, Sprowl JA. Impact of Drug-Mediated Inhibition of Intestinal Transporters on Nutrient and Endogenous Substrate Disposition…an Afterthought? Pharmaceutics 2024; 16:447. [PMID: 38675109 PMCID: PMC11053474 DOI: 10.3390/pharmaceutics16040447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/06/2024] [Accepted: 03/14/2024] [Indexed: 04/28/2024] Open
Abstract
A large percentage (~60%) of prescription drugs and new molecular entities are designed for oral delivery, which requires passage through a semi-impervious membrane bilayer in the gastrointestinal wall. Passage through this bilayer can be dependent on membrane transporters that regulate the absorption of nutrients or endogenous substrates. Several investigations have provided links between nutrient, endogenous substrate, or drug absorption and the activity of certain membrane transporters. This knowledge has been key in the development of new therapeutics that can alleviate various symptoms of select diseases, such as cholestasis and diabetes. Despite this progress, recent studies revealed potential clinical dangers of unintended altered nutrient or endogenous substrate disposition due to the drug-mediated disruption of intestinal transport activity. This review outlines reports of glucose, folate, thiamine, lactate, and bile acid (re)absorption changes and consequent adverse events as examples. Finally, the need to comprehensively expand research on intestinal transporter-mediated drug interactions to avoid the unwanted disruption of homeostasis and diminish therapeutic adverse events is highlighted.
Collapse
Affiliation(s)
- Kshitee Kharve
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA;
| | - Andrew S. Engley
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA 99202, USA; (A.S.E.); (M.F.P.)
| | - Mary F. Paine
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA 99202, USA; (A.S.E.); (M.F.P.)
| | - Jason A. Sprowl
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York, Buffalo, NY 14214, USA;
| |
Collapse
|
21
|
Eiamkulbutr S, Tubjareon C, Sanpavat A, Phewplung T, Srisan N, Sintusek P. Diseases of bile duct in children. World J Gastroenterol 2024; 30:1043-1072. [PMID: 38577180 PMCID: PMC10989494 DOI: 10.3748/wjg.v30.i9.1043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/26/2023] [Accepted: 02/04/2024] [Indexed: 03/06/2024] Open
Abstract
Several diseases originate from bile duct pathology. Despite studies on these diseases, certain etiologies of some of them still cannot be concluded. The most common disease of the bile duct in newborns is biliary atresia, whose prognosis varies according to the age of surgical correction. Other diseases such as Alagille syndrome, inspissated bile duct syndrome, and choledochal cysts are also time-sensitive because they can cause severe liver damage due to obstruction. The majority of these diseases present with cholestatic jaundice in the newborn or infant period, which is quite difficult to differentiate regarding clinical acumen and initial investigations. Intraoperative cholangiography is potentially necessary to make an accurate diagnosis, and further treatment will be performed synchronously or planned as findings suggest. This article provides a concise review of bile duct diseases, with interesting cases.
Collapse
Affiliation(s)
- Sutha Eiamkulbutr
- Department of Pediatrics, King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand
| | - Chomchanat Tubjareon
- Department of Pediatrics, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand
| | - Anapat Sanpavat
- Department of Pathology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Teerasak Phewplung
- Department of Radiology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nimmita Srisan
- Department of Surgery, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok 10330, Thailand
| | - Palittiya Sintusek
- Center of Excellence in Thai Pediatric Gastroenterology, Hepatology and Immunology, Division of Gastroenterology, Department of Pediatrics, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok 10330, Thailand
| |
Collapse
|
22
|
Himes R, Rosenthal P, Dilwali N, Smith K, Venick R, Gonzalez-Peralta RP. Real-world experience of maralixibat in Alagille syndrome: Novel findings outside of clinical trials. J Pediatr Gastroenterol Nutr 2024; 78:506-513. [PMID: 38334237 DOI: 10.1002/jpn3.12101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/03/2023] [Accepted: 08/30/2023] [Indexed: 02/10/2024]
Abstract
OBJECTIVE Maralixibat, an ileal bile acid transporter inhibitor, is the first drug approved by the U.S. Food and Drug Administration for the treatment of cholestatic pruritus in patients aged ≥3 months with Alagille syndrome (ALGS). Approval was based on reductions in pruritus from the pivotal ICONIC trial, information from two additional trials (ITCH and IMAGO), and long-term extension studies. Although participants in these trials met strict inclusion and exclusion criteria, patients have received maralixibat under broader circumstances as part of an expanded access program or commercially. The expanded access and postapproval settings inform a real-world understanding of effectiveness and safety. The objective was to report on the use of maralixibat in the real-world setting in eight patients who otherwise would not have met entrance criteria for the clinical trials, providing unique insights into its effectiveness in the management of ALGS. METHODS We reviewed records of patients with ALGS who received maralixibat but would have been excluded from trials due to surgical biliary diversion, reduction of antipruritic/cholestatic concomitant medications, administration of medication through a gastrostomy or nasogastric tube, or use in patients under consideration for transplantation. RESULTS Maralixibat appeared to be effective with reductions in pruritus compared to baseline. Consistent with clinical trials, maralixibat was well tolerated without appreciable gastrointestinal complications. Liver enzyme elevations were observed but were interpreted as consistent with normal fluctuations observed in ALGS, with no increases in bilirubin. CONCLUSION Maralixibat may be effective and well tolerated in patients with ALGS in broader clinical contexts than previously reported.
Collapse
Affiliation(s)
- Ryan Himes
- Department of Pediatric Gastroenterology, Hepatology, and Nutrition, Ochsner Health Center for Children, New Orleans, Louisiana, USA
| | - Philip Rosenthal
- Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, University of California, San Francisco, California, USA
| | - Natasha Dilwali
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Johns Hopkins Children's Center, Baltimore, Maryland, USA
| | - Kathryn Smith
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Johns Hopkins Children's Center, Baltimore, Maryland, USA
| | - Robert Venick
- Department of Pediatric Gastroenterology, University of California Los Angeles, Los Angeles, California, USA
| | - Regino P Gonzalez-Peralta
- Pediatric Gastroenterology, Hepatology, and Liver Transplant, AdventHealth for Children and AdventHealth Transplant Institute, Orlando, Florida, USA
| |
Collapse
|
23
|
Zapata M, Pagan-Torres H, Mayo MJ. Systemic Complications of Primary Biliary Cholangitis. Clin Liver Dis 2024; 28:115-128. [PMID: 37945153 DOI: 10.1016/j.cld.2023.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Chronic cholestasis is the hallmark clinical feature of primary biliary cholangitis. In addition to progressive liver damage, chronic cholestasis can lead to serious complications, many of which occur outside the liver. Bile acids are ligands for nuclear hormone receptors, and alterations in their concentration disrupt normal functioning of numerous different cell types. This article discusses the clinical presentation, pathophysiology, and management of pruritus (itching), fatigue, osteoporosis, hyperlipidemia, fat-soluble vitamin deficiencies, malignancies, cardiac dysfunction, bacterial cholangitis, cholemic (bile cast) nephropathy, and Sicca syndrome.
Collapse
Affiliation(s)
- Mariana Zapata
- University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-8887, USA
| | - Hendrick Pagan-Torres
- University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-8887, USA
| | - Marlyn J Mayo
- University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-8887, USA.
| |
Collapse
|
24
|
Jeyaraj R, Maher ER, Kelly D. Paediatric research sets new standards for therapy in paediatric and adult cholestasis. THE LANCET. CHILD & ADOLESCENT HEALTH 2024; 8:75-84. [PMID: 38006895 DOI: 10.1016/s2352-4642(23)00259-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/18/2023] [Accepted: 09/22/2023] [Indexed: 11/27/2023]
Abstract
Children with Alagille syndrome and progressive familial intrahepatic cholestasis (PFIC) experience debilitating pruritus, for which there have been few effective treatment options. In the past 2 years, the ileal bile acid transporter (IBAT) inhibitors maralixibat and odevixibat have been approved for the management of cholestatic pruritus in these individuals, representing an important step forward in improving their quality of life. Emerging data suggest these drugs might also improve event-free survival, therefore potentially altering the typical disease course currently seen in these disorders. This Review will discuss how genetic advances have clarified the molecular basis of cholestatic disorders, facilitating the development of new therapeutic options that have only been evaluated in children. We focus specifically on the newly licensed IBAT inhibitors for patients with Alagille syndrome and PFIC and explore the next steps for these drugs in relation to other paediatric and adult cholestatic disorders, recognising that they have the potential to benefit a wider group of patients with gastrointestinal and liver disease.
Collapse
Affiliation(s)
- Rebecca Jeyaraj
- University College London Great Ormond Street Institute of Child Health, London, UK
| | - Eamonn R Maher
- Department of Medical Genetics, University of Cambridge, Cambridge, UK
| | - Deirdre Kelly
- The Liver Unit, Birmingham Women's and Children's Hospital, Birmingham, UK; University of Birmingham, Birmingham, UK.
| |
Collapse
|
25
|
Kunst RF, Bolt I, van Dasselaar RD, Nijmeijer BA, Beuers U, Oude Elferink RP, van de Graaf SF. Combined inhibition of bile salt synthesis and intestinal uptake reduces cholestatic liver damage and colonic bile salts in mice. JHEP Rep 2024; 6:100917. [PMID: 38074508 PMCID: PMC10701132 DOI: 10.1016/j.jhepr.2023.100917] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/23/2023] [Accepted: 09/12/2023] [Indexed: 03/26/2024] Open
Abstract
BACKGROUND & AIMS Intestine-restricted inhibitors of the apical sodium-dependent bile acid transporter (ASBT, or ileal bile acid transporter) are approved as treatment for several inheritable forms of cholestasis but are also associated with abdominal complaints and diarrhoea. Furthermore, blocking ASBT as a single therapeutic approach may be less effective in moderate to severe cholestasis. We hypothesised that interventions that lower hepatic bile salt synthesis in addition to intestinal bile salt uptake inhibition provide added therapeutic benefit in the treatment of cholestatic disorders. Here, we test combination therapies of intestinal ASBT inhibition together with obeticholic acid (OCA), cilofexor, and the non-tumorigenic fibroblast growth factor 15 (Fgf15)/fibroblast growth factor 19 (FGF19) analogue aldafermin in a mouse model of cholestasis. METHODS Wild-type male C57Bl6J/OlaHsd mice were fed a 0.05% 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) diet and received daily oral gavage with 10 mg/kg OCA, 30 mg/kg cilofexor, 10 mg/kg ASBT inhibitor (Linerixibat; ASBTi), or a combination. Alternatively, wild-type male C57Bl6J/OlaHsd mice were injected with adeno-associated virus vector serotype 8 (AAV8) to express aldafermin, to repress bile salt synthesis, or to control AAV8. During a 3-week 0.05% DDC diet, mice received daily oral gavage with 10 mg/kg ASBTi or placebo control. RESULTS Combination therapy of OCA, cilofexor, or aldafermin with ASBTi effectively reduced faecal bile salt excretion. Compared with ASBTi monotherapy, aldafermin + ASBTi further lowered plasma bile salt levels. Cilofexor + ASBTi and aldafermin + ASBTi treatment reduced plasma alanine transaminase and aspartate transaminase levels and fibrotic liver immunohistochemistry stainings. The reduction in inflammation and fibrogenesis in mice treated with cilofexor + ASBTi or aldafermin + ASBTi was confirmed by gene expression analysis. CONCLUSIONS Combining pharmacological intestinal bile salt uptake inhibition with repression of bile salt synthesis may form an effective treatment strategy to reduce liver injury while dampening the ASBTi-induced colonic bile salt load. IMPACT AND IMPLICATIONS Combined treatment of intestinal ASBT inhibition with repression of bile salt synthesis by farnesoid X receptor agonism (using either obeticholic acid or cilofexor) or by expression of aldafermin ameliorates liver damage in cholestatic mice. In addition, compared with ASBT inhibitor monotherapy, combination treatments lower colonic bile salt load.
Collapse
Affiliation(s)
- Roni F. Kunst
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism (AGEM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | - Isabelle Bolt
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism (AGEM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
| | | | | | - Ulrich Beuers
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism (AGEM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Ronald P.J. Oude Elferink
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism (AGEM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Stan F.J. van de Graaf
- Tytgat Institute for Liver and Intestinal Research, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
- Amsterdam Gastroenterology, Endocrinology and Metabolism (AGEM), Amsterdam University Medical Centers, Amsterdam, The Netherlands
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| |
Collapse
|
26
|
Cheng K, Rosenthal P. Diagnosis and management of Alagille and progressive familial intrahepatic cholestasis. Hepatol Commun 2023; 7:e0314. [PMID: 38055640 PMCID: PMC10984671 DOI: 10.1097/hc9.0000000000000314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/12/2023] [Indexed: 12/08/2023] Open
Abstract
Alagille syndrome and progressive familial intrahepatic cholestasis are conditions that can affect multiple organs. Advancements in molecular testing have aided in the diagnosis of both. The impairment of normal bile flow and secretion leads to the various hepatic manifestations of these diseases. Medical management of Alagille syndrome and progressive familial intrahepatic cholestasis remains mostly targeted on supportive care focusing on quality of life, cholestasis, and fat-soluble vitamin deficiency. The most difficult therapeutic issue is typically related to pruritus, which can be managed by various medications such as ursodeoxycholic acid, rifampin, cholestyramine, and antihistamines. Surgical operations were previously used to disrupt enterohepatic recirculation, but recent medical advancements in the use of ileal bile acid transport inhibitors have shown great efficacy for the treatment of pruritus in both Alagille syndrome and progressive familial intrahepatic cholestasis.
Collapse
Affiliation(s)
- Katherine Cheng
- Department of Pediatrics Gastroenterology, Hepatology and Nutrition, University of California San Francisco, San Francisco, California, USA
| | - Philip Rosenthal
- Department of Pediatrics Gastroenterology, Hepatology and Nutrition, University of California San Francisco, San Francisco, California, USA
- Department of Surgery, University of California, San Francisco, San Francisco, California, USA
| |
Collapse
|
27
|
Sokol RJ, Gonzales EM, Kamath BM, Baker A, Vig P, Mogul DB, Garner W, Hansen BE, Jacquemin E, Thompson RJ. Predictors of 6-year event-free survival in Alagille syndrome patients treated with maralixibat, an ileal bile acid transporter inhibitor. Hepatology 2023; 78:1698-1710. [PMID: 37278241 PMCID: PMC10653287 DOI: 10.1097/hep.0000000000000502] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 05/14/2023] [Indexed: 06/07/2023]
Abstract
BACKGROUND AND AIMS Refractory pruritus and other complications of cholestasis are indications for liver transplantation (LT) in patients with Alagille syndrome (ALGS). We evaluated predictors of event-free survival and transplant-free survival in patients with ALGS treated with maralixibat (MRX), an ileal bile acid transporter inhibitor. APPROACH AND RESULTS We assessed patients with ALGS from 3 clinical trials of MRX with up to 6 years of follow-up. Event-free survival was defined as the absence of LT, surgical biliary diversion, hepatic decompensation, or death; transplant-free survival was the absence of LT or death. Forty-three potential predictors were evaluated, including age, pruritus (ItchRO[Obs] 0-4 scale), biochemistries, platelets, and serum bile acids. Harrell's concordance statistic assessed goodness-of-fit, and then, Cox proportional hazard models confirmed the statistical significance of the predictors identified. A further analysis was performed to identify cutoffs using a grid search. Seventy-six individuals met the criteria of receiving MRX for ≥48 weeks with laboratory values available at week 48 (W48). The median duration of MRX was 4.7 years (IQR: 1.6-5.8); 16 had events (10 LT, 3 decompensation, 2 death, and 1 surgical biliary diversion). The 6-year event-free survival improved with a clinically meaningful >1-point ItchRO(Obs) reduction from baseline to W48 (88% vs. 57%; p = 0.005), W48 bilirubin < 6.5 mg/dL (90% vs. 43%; p < 0.0001), and W48 serum bile acid < 200 µmol/L (85% vs. 49%; p = 0.001). These parameters were also predictive of 6-year transplant-free survival. CONCLUSIONS Improvement in pruritus by 48 weeks, and lower W48 bilirubin and serum bile acid levels were associated with fewer events. These data may help identify potential markers of disease progression for ALGS patients treated with MRX.
Collapse
Affiliation(s)
- Ronald J. Sokol
- Section of Pediatric Gastroenterology, Hepatology and Nutrition and the Digestive Health Institute, Children’s Hospital Colorado and University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Emmanuel M. Gonzales
- Department of Pediatric Hepatology and Liver Transplantation, National reference center for biliary atresia and genetic cholestasis (AVB-CG), FSMR FILFOIE, ERN RARE-LIVER, AP-HP, Université Paris-Saclay, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- Department of Pediatric Hepatology and Liver Transplantation, Inserm UMR_S 1193, Université Paris-Saclay, FHU Hepatinov, Orsay, France
| | - Binita M. Kamath
- Department of Pediatrics, Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Ontario, Canada
| | - Alastair Baker
- Pediatric Liver Department, Pediatric Liver Centre, King’s College Hospital, London, UK
| | - Pamela Vig
- Department of Scientific and Medical Affairs, Mirum Pharmaceuticals Inc., Foster City, California, USA
| | - Douglas B. Mogul
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands
| | - Will Garner
- Department of Scientific and Medical Affairs, Mirum Pharmaceuticals Inc., Foster City, California, USA
| | | | - Emmanuel Jacquemin
- Department of Pediatric Hepatology and Liver Transplantation, National reference center for biliary atresia and genetic cholestasis (AVB-CG), FSMR FILFOIE, ERN RARE-LIVER, AP-HP, Université Paris-Saclay, Bicêtre Hospital, Le Kremlin-Bicêtre, France
- Department of Pediatric Hepatology and Liver Transplantation, Inserm UMR_S 1193, Université Paris-Saclay, FHU Hepatinov, Orsay, France
| | - Richard J. Thompson
- Department of Inflammation Biology, Institute of Liver Studies, King’s College London, London, UK
| |
Collapse
|
28
|
Heinz N, Vittorio J. Treatment of Cholestasis in Infants and Young Children. Curr Gastroenterol Rep 2023; 25:344-354. [PMID: 37651067 DOI: 10.1007/s11894-023-00891-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
PURPOSE OF REVIEW Cholestasis is characterized by a conjugated hyperbilirubinemia secondary to impaired bile synthesis, transport, or excretion from the liver. It is always pathologic and can be indicative of an underlying hepatobiliary, genetic, or metabolic disorder, several of which require timely diagnosis to ensure proper management and optimal outcomes. This review provides an overview of the evaluation of cholestasis with a focus on current and emerging treatment strategies. RECENT FINDINGS Increased accessibility of next generation sequencing (NGS) allows for utilization of genetic testing early in the diagnostic process. This may alter the clinical algorithm for diagnosis of cholestatic disorders. An enhanced understanding of the underlying pathophysiology may help guide future development of targeted therapies, such as ileal bile acid transporter (IBAT) inhibitors. These were recently approved for treatment of cholestatic pruritus in patients with Alagille syndrome and Progressive Familial Intrahepatic Cholestasis. Current management of cholestasis is aimed at the biochemical consequences of impaired bile flow, including malnutrition, pruritus, and progressive fibrosis. NGS has led to an enhanced understanding of biliary pathology and may guide development of future treatment modalities based on specific gene mutations. Rapid discernment of the underlying etiology is essential as new treatment modalities emerge.
Collapse
Affiliation(s)
- Nicole Heinz
- New York University (NYU) Transplant Institute, NYU Langone Health, 160 East 32nd Street, Suite L3 Medical Level, New York, NY, USA
| | - Jennifer Vittorio
- New York University (NYU) Transplant Institute, NYU Langone Health, 160 East 32nd Street, Suite L3 Medical Level, New York, NY, USA.
| |
Collapse
|
29
|
Niknejad N, Fox D, Burwinkel JL, Zarrin-Khameh N, Cho S, Soriano A, Cast AE, Lopez MF, Huppert KA, Rigo F, Huppert SS, Jafar-Nejad P, Jafar-Nejad H. ASO silencing of a glycosyltransferase, Poglut1 , improves the liver phenotypes in mouse models of Alagille syndrome. Hepatology 2023; 78:1337-1351. [PMID: 37021797 PMCID: PMC10558624 DOI: 10.1097/hep.0000000000000380] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/13/2023] [Indexed: 04/07/2023]
Abstract
BACKGROUND AND AIMS Paucity of intrahepatic bile ducts (BDs) is caused by various etiologies and often leads to cholestatic liver disease. For example, in patients with Alagille syndrome (ALGS), which is a genetic disease primarily caused by mutations in jagged 1 ( JAG1) , BD paucity often results in severe cholestasis and liver damage. However, no mechanism-based therapy exists to restore the biliary system in ALGS or other diseases associated with BD paucity. Based on previous genetic observations, we investigated whether postnatal knockdown of the glycosyltransferase gene protein O -glucosyltransferase 1 ( Poglut1) can improve the ALGS liver phenotypes in several mouse models generated by removing one copy of Jag1 in the germline with or without reducing the gene dosage of sex-determining region Y-box 9 in the liver. APPROACH AND RESULTS Using an ASO established in this study, we show that reducing Poglut1 levels in postnatal livers of ALGS mouse models with moderate to profound biliary abnormalities can significantly improve BD development and biliary tree formation. Importantly, ASO injections prevent liver damage in these models without adverse effects. Furthermore, ASO-mediated Poglut1 knockdown improves biliary tree formation in a different mouse model with no Jag1 mutations. Cell-based signaling assays indicate that reducing POGLUT1 levels or mutating POGLUT1 modification sites on JAG1 increases JAG1 protein level and JAG1-mediated signaling, suggesting a likely mechanism for the observed in vivo rescue. CONCLUSIONS Our preclinical studies establish ASO-mediated POGLUT1 knockdown as a potential therapeutic strategy for ALGS liver disease and possibly other diseases associated with BD paucity.
Collapse
Affiliation(s)
- Nima Niknejad
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX
| | - Duncan Fox
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX
- Genetics & Genomics Graduate Program, Baylor College of Medicine, Houston, TX
| | - Jennifer L. Burwinkel
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Neda Zarrin-Khameh
- Department of Pathology & Immunology, Baylor College of Medicine and Ben Taub Hospital, Houston, TX
| | - Soomin Cho
- Development, Disease Models & Therapeutics Graduate Program, Baylor College of Medicine, Houston, TX
| | | | - Ashley E. Cast
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | - Mario F. Lopez
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX
| | - Kari A. Huppert
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
| | | | - Stacey S. Huppert
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH
| | | | - Hamed Jafar-Nejad
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX
- Genetics & Genomics Graduate Program, Baylor College of Medicine, Houston, TX
- Development, Disease Models & Therapeutics Graduate Program, Baylor College of Medicine, Houston, TX
| |
Collapse
|
30
|
Di Giorgio A, Sciveres M, Fuoti M, Sonzogni A, Mandato C, D'Antiga L. Treatment with an ileal bile acid transporter inhibitor in patients with TJP2 deficiency. Clin Res Hepatol Gastroenterol 2023; 47:102185. [PMID: 37499899 DOI: 10.1016/j.clinre.2023.102185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
There are no published data on the use of odevixibat, a selective ileal bile acid transporter (IBAT) inhibitor, in children with tight junction protein 2 (TJP2) deficiency (also named as PFIC-4). We describe a case series of five children treated with odevixibat. After treatment, serum bile acids (sBA) decreased compared to baseline [mean value: 244 (±125), vs 38 (±34) µmol/L; p = 0.007]; reduction in sBA was >70% from baseline (or <70 µmol/L) in all. Improvements in pruritus were reported in all patients. The drug was well tolerated. IBAT inhibitors should be considered a valuable treatment option in patients with TJP2 deficiency.
Collapse
Affiliation(s)
- Angelo Di Giorgio
- Pediatric Hepatology, Gastroenterology and Transplantation, Hospital Papa Giovanni XXIII, Bergamo, Italy.
| | - Marco Sciveres
- Pediatric Department and Transplantation, ISMETT IRCCS, Palermo, Italy
| | - Maurizio Fuoti
- Pediatric Gastroenterology and Endoscopy Unit, University Department of Pediatrics, Children's Hospital, Spedali Civili, Brescia, Italy
| | | | - Claudia Mandato
- Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", Pediatrics Section, University of Salerno, Baronissi (Salerno), Italy
| | - Lorenzo D'Antiga
- Pediatric Hepatology, Gastroenterology and Transplantation, Hospital Papa Giovanni XXIII, Bergamo, Italy
| |
Collapse
|
31
|
Ayoub MD, Bakhsh AA, Vandriel SM, Keitel V, Kamath BM. Management of adults with Alagille syndrome. Hepatol Int 2023; 17:1098-1112. [PMID: 37584849 PMCID: PMC10522532 DOI: 10.1007/s12072-023-10578-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 07/30/2023] [Indexed: 08/17/2023]
Abstract
Alagille syndrome (ALGS) is a complex rare genetic disorder that involves multiple organ systems and is historically regarded as a disease of childhood. Since it is inherited in an autosomal dominant manner in 40% of patients, it carries many implications for genetic counselling of patients and screening of family members. In addition, the considerable variable expression and absence of a clear genotype-phenotype correlation, results in a diverse range of clinical manifestations, even in affected individuals within the same family. With recent therapeutic advancements in cholestasis treatment and the improved survival rates with liver transplantation (LT), many patients with ALGS survive into adulthood. Although LT is curative for liver disease secondary to ALGS, complications secondary to extrahepatic involvement remain problematic lifelong. This review is aimed at providing a comprehensive review of ALGS to adult clinicians who will take over the medical care of these patients following transition, with particular focus on certain aspects of the condition that require lifelong surveillance. We also provide a diagnostic framework for adult patients with suspected ALGS and highlight key aspects to consider when determining eligibility for LT in patients with this syndrome.
Collapse
Affiliation(s)
- Mohammed D Ayoub
- Department of Pediatrics, Faculty of Medicine, Rabigh Branch, King Abdulaziz University, Jeddah, Saudi Arabia
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Ahmad A Bakhsh
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON, M5G 1X8, Canada
- Department of Pediatrics, Faculty of Medicine, University of Jeddah, Jeddah, Saudi Arabia
| | - Shannon M Vandriel
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON, M5G 1X8, Canada
| | - Verena Keitel
- Department of Gastroenterology, Hepatology and Infectious Diseases, Faculty of Medicine, Otto Von Guericke University Magdeburg, Magdeburg, Germany
| | - Binita M Kamath
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, University of Toronto, 555 University Ave, Toronto, ON, M5G 1X8, Canada.
| |
Collapse
|
32
|
Caballero-Camino FJ, Rodrigues PM, Wångsell F, Agirre-Lizaso A, Olaizola P, Izquierdo-Sanchez L, Perugorria MJ, Bujanda L, Angelin B, Straniero S, Wallebäck A, Starke I, Gillberg PG, Strängberg E, Bonn B, Mattsson JP, Madsen MR, Hansen HH, Lindström E, Åkerblad P, Banales JM. A3907, a systemic ASBT inhibitor, improves cholestasis in mice by multiorgan activity and shows translational relevance to humans. Hepatology 2023; 78:709-726. [PMID: 36999529 PMCID: PMC10442107 DOI: 10.1097/hep.0000000000000376] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 03/06/2023] [Accepted: 03/06/2023] [Indexed: 04/01/2023]
Abstract
BACKGROUND AND AIMS Cholestasis is characterized by intrahepatic accumulation of bile constituents, including bile acids (BAs), which promote liver damage. The apical sodium-dependent BA transporter (ASBT) plays an important role in BA reabsorption and signaling in ileum, bile ducts, and kidneys. Our aim was to investigate the pharmacokinetics and pharmacological activity of A3907, an oral and systemically available ASBT inhibitor in experimental mouse models of cholestasis. In addition, the tolerability, pharmacokinetics, and pharmacodynamics of A3907 were examined in healthy humans. APPROACH AND RESULTS A3907 was a potent and selective ASBT inhibitor in vitro. In rodents, orally administered A3907 distributed to the ASBT-expressing organs, that is, ileum, liver, and kidneys, and dose dependently increased fecal BA excretion. A3907 improved biochemical, histological, and molecular markers of liver and bile duct injury in Mdr2-/- mice and also had direct protective effects on rat cholangiocytes exposed to cytotoxic BA concentrations in vitro . In bile duct ligated mice, A3907 increased urinary BA elimination, reduced serum BA levels, and prevented body weight loss, while improving markers of liver injury. A3907 was well tolerated and demonstrated target engagement in healthy volunteers. Plasma exposure of A3907 in humans was within the range of systemic concentrations that achieved therapeutic efficacy in mouse. CONCLUSIONS The systemic ASBT inhibitor A3907 improved experimental cholestatic disease by targeting ASBT function at the intestinal, liver, and kidney levels, resulting in marked clearance of circulating BAs and liver protection. A3907 is well tolerated in humans, supporting further clinical development for the treatment of cholestatic liver diseases.
Collapse
Affiliation(s)
- Francisco J. Caballero-Camino
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- Department of Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Pedro M. Rodrigues
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
| | | | - Aloña Agirre-Lizaso
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
| | - Paula Olaizola
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
| | - Laura Izquierdo-Sanchez
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
| | - Maria J. Perugorria
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- Department of Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
| | - Luis Bujanda
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- Department of Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
| | - Bo Angelin
- CardioMetabolic Unit, Department of Medicine and Clinical Department of Endocrinology, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Sara Straniero
- CardioMetabolic Unit, Department of Medicine and Clinical Department of Endocrinology, Karolinska Institutet at Karolinska University Hospital Huddinge, Stockholm, Sweden
| | | | | | | | | | | | | | | | | | | | | | - Jesus M. Banales
- Department of Liver and Gastrointestinal Diseases, Biodonostia Health Research Institute, Donostia University Hospital, University of the Basque Country (UPV/EHU), San Sebastian, Spain
- National Institute for the Study of Liver and Gastrointestinal Diseases (CIBERehd, “Instituto de Salud Carlos III”), Madrid, Spain
- Ikerbasque, Basque Foundation for Science, Bilbao, Spain
- Department of Biochemistry and Genetics, School of Sciences, University of Navarra, Pamplona, Spain
| |
Collapse
|
33
|
Thompson RJ. Choluresis? Hepatology 2023; 78:689-690. [PMID: 37204176 DOI: 10.1097/hep.0000000000000473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 05/09/2023] [Indexed: 05/20/2023]
|
34
|
Garcia A, Hsu E, Lin HC. Resolution of Pruritus in a Child With Alagille Syndrome Treated With Maralixibat for Seven Years: Durable Response and Discontinuation of Other Medications. JPGN REPORTS 2023; 4:e335. [PMID: 37600618 PMCID: PMC10435040 DOI: 10.1097/pg9.0000000000000335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 04/23/2023] [Indexed: 08/22/2023]
Abstract
Intractable pruritus is one of the most prominent and debilitating features of Alagille syndrome. Maralixibat is the first US Food and Drug Administration-approved drug for the treatment of cholestatic pruritus in children with Alagille syndrome aged 3 months and older. Clinical trials of maralixibat have reported follow-up to 4 years and reported a ≥1-pt reduction using the Itch-Reported Outcome (Observer) (ItchRO[Obs]) instrument (0-4 scale), as this decrease was previously defined as a clinically meaningful improvement in pruritus; participants in clinical trials were expected to be maintained on stable doses of antipruritic agents. We report on a patient with 3 notable features: (1) complete resolution of her pruritus; (2) durability of this response for over 7 years; and (3) ability to discontinue all other antipruritic medications.
Collapse
Affiliation(s)
- Amy Garcia
- From the Department of Pediatrics, Essentia Health, Duluth, MN
| | - Evelyn Hsu
- Department of Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Henry C Lin
- Oregon Health and Science University, Portland, OR
| |
Collapse
|
35
|
Levy C, Manns M, Hirschfield G. New Treatment Paradigms in Primary Biliary Cholangitis. Clin Gastroenterol Hepatol 2023; 21:2076-2087. [PMID: 36809835 DOI: 10.1016/j.cgh.2023.02.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/28/2023] [Accepted: 02/03/2023] [Indexed: 02/24/2023]
Abstract
Primary biliary cholangitis (PBC) is an archetypal autoimmune disease. Chronic lymphocytic cholangitis is associated with interface hepatitis, ductopenia, cholestasis, and progressive biliary fibrosis. People living with PBC are frequently symptomatic, experiencing a quality-of-life burden dominated by fatigue, itch, abdominal pain, and sicca complex. Although the female predominance, specific serum autoantibodies, immune-mediated cellular injury, as well as genetic (HLA and non-HLA) risk factors, identify PBC as autoimmune, to date treatment has focused on cholestatic consequences. Biliary epithelial homeostasis is abnormal and contributes to disease. The impact of cholangiocyte senescence, apoptosis, and impaired bicarbonate secretion enhances chronic inflammation and bile acid retention. First-line therapy is a non-specific anti-cholestatic agent, ursodeoxycholic acid. For those with residual cholestasis biochemically, obeticholic acid is introduced, and this semisynthetic farnesoid X receptor agonist adds choleretic, anti-fibrotic, and anti-inflammatory activity. Future PBC licensed therapy will likely include peroxisome proliferator activated receptor (PPAR) pathway agonists, including specific PPAR-delta agonism (seladelpar), as well as elafibrinor and saroglitazar (both with broader PPAR agonism). These agents dovetail the clinical and trial experience for off-label bezafibrate and fenofibrate use. Symptom management is essential, and encouragingly, PPAR agonists reduce itch; IBAT inhibition (eg, linerixibat) also appears promising for pruritus. For those where liver fibrosis is the target, NOX inhibition is being evaluated. Earlier stage therapies in development include therapy to impact immunoregulation in patients, as well other approaches to treating pruritus (eg, antagonists of MrgprX4). Collectively the PBC therapeutic landscape is exciting. Therapy goals are increasingly proactive and individualized and aspire to rapidly achieve normal serum tests and quality of life with prevention of end-stage liver disease.
Collapse
Affiliation(s)
- Cynthia Levy
- Division of Digestive Health and Liver Diseases, University of Miami School of Medicine, Miami, Florida.
| | | | - Gideon Hirschfield
- Toronto Centre for Liver Disease, Division of Gastroenterology and Hepatology, University of Toronto, Toronto, Canada
| |
Collapse
|
36
|
Méndez-Sánchez N, Coronel-Castillo CE, Ordoñez-Vázquez AL. Current Therapies for Cholestatic Diseases. Biomedicines 2023; 11:1713. [PMID: 37371808 PMCID: PMC10296345 DOI: 10.3390/biomedicines11061713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/03/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Cholestasis is a condition characterized by decrease in bile flow due to progressive pathological states that lead to chronic cholestatic liver diseases which affect the biliary tree at the intrahepatic level and extrahepatic level. They induce complications such as cirrhosis, liver failure, malignancies, bone disease and nutritional deficiencies that merit close follow-up and specific interventions. Furthermore, as those conditions progress to liver cirrhosis, there will be an increase in mortality but also an important impact in quality of life and economic burden due to comorbidities related with liver failure. Therefore, it is important that clinicians understand the treatment options for cholestatic liver diseases. With a general view of therapeutic options and their molecular targets, this review addresses the pathophysiology of cholangiopathies. The objective is to provide clinicians with an overview of the safety and efficacy of the treatment of cholangiopathies based on the current evidence.
Collapse
Affiliation(s)
- Nahum Méndez-Sánchez
- Unit Liver Research, Medica Sur Clinic & Foundation, Puente de Piedra 150, Toriello Guerra, Tlalpan, Mexico City 14050, Mexico;
- Faculty of Medicine, National Autonomous University of Mexico, Av. Universidad 3004, Copilco Universidad, Coyoacán, Mexico City 04510, Mexico
| | - Carlos E. Coronel-Castillo
- Internal Medicine Section, Central Military Hospital, Manuel Ávila Camacho s/n, Militar, Miguel Hidalgo, Ciudad de México 11200, Mexico;
| | - Ana L. Ordoñez-Vázquez
- Unit Liver Research, Medica Sur Clinic & Foundation, Puente de Piedra 150, Toriello Guerra, Tlalpan, Mexico City 14050, Mexico;
| |
Collapse
|
37
|
Bowlus CL, Eksteen B, Cheung AC, Thorburn D, Moylan CA, Pockros PJ, Forman LM, Dorenbaum A, Hirschfield GM, Kennedy C, Jaecklin T, McKibben A, Chien E, Baek M, Vig P, Levy C. Safety, tolerability, and efficacy of maralixibat in adults with primary sclerosing cholangitis: Open-label pilot study. Hepatol Commun 2023; 7:02009842-202306010-00003. [PMID: 37184523 DOI: 10.1097/hc9.0000000000000153] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 03/16/2023] [Indexed: 05/16/2023] Open
Abstract
BACKGROUND Primary sclerosing cholangitis (PSC) is frequently associated with pruritus, which significantly impairs quality of life. Maralixibat is a selective ileal bile acid transporter (IBAT) inhibitor that lowers circulating bile acid (BA) levels and reduces pruritus in cholestatic liver diseases. This is the first proof-of-concept study of IBAT inhibition in PSC. METHODS This open-label study evaluated the safety and tolerability of maralixibat ≤10 mg/d for 14 weeks in adults with PSC. Measures of pruritus, biomarkers of BA synthesis, cholestasis, and liver function were also assessed. RESULTS Of 27 enrolled participants, 85.2% completed treatment. Gastrointestinal treatment-emergent adverse events (TEAEs) occurred in 81.5%, with diarrhea in 51.9%. TEAEs were mostly mild or moderate (63.0%); 1 serious TEAE (cholangitis) was considered treatment related. Mean serum BA (sBA) levels decreased by 16.7% (-14.84 µmol/L; 95% CI, -27.25 to -2.43; p = 0.0043) by week 14/early termination (ET). In participants with baseline sBA levels above normal (n = 18), mean sBA decreased by 40.0% (-22.3 µmol/L, 95% CI, -40.38 to -4.3; p = 0.004) by week 14/ET. Liver enzyme elevations were not significant; however, increases of unknown clinical significance in conjugated bilirubin levels were observed. ItchRO weekly sum scores decreased from baseline to week 14/ET by 8.4% (p = 0.0495), by 12.6% (p = 0.0275) in 18 participants with pruritus at baseline, and by 70% (p = 0.0078) in 8 participants with ItchRO daily average score ≥3 at baseline. CONCLUSIONS Maralixibat was associated with reduced sBA levels in adults with PSC. In participants with more severe baseline pruritus, pruritus improved significantly from baseline. TEAEs were mostly gastrointestinal related. These results support further investigation of IBAT inhibitors for adults with PSC-associated pruritus. ClinicalTrials.gov: NCT02061540.
Collapse
Affiliation(s)
- Christopher L Bowlus
- Division of Gastroenterology and Hepatology, University of California Davis School of Medicine, Sacramento, California, USA
| | | | - Angela C Cheung
- Division of Gastroenterology, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Douglas Thorburn
- Sheila Sherlock Liver Centre, Royal Free Hospital and Institute of Liver and Digestive Health, University College London, Royal Free Campus, Hampstead, London, UK
| | - Cynthia A Moylan
- Division of Gastroenterology and Hepatology, Duke University, Durham, North Carolina, USA
| | - Paul J Pockros
- Scripps Clinic and Scripps Translational Science Institute, La Jolla, California, USA
| | - Lisa M Forman
- Division of Gastroenterology-Hepatology, University of Colorado, Aurora, Colorado, USA
| | | | - Gideon M Hirschfield
- Toronto Centre for Liver Disease, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | | | | | | | - Elaine Chien
- Mirum Pharmaceuticals, Foster City, California, USA
| | | | - Pamela Vig
- Mirum Pharmaceuticals, Foster City, California, USA
| | - Cynthia Levy
- Division of Digestive Health and Liver Diseases, University of Miami Miller School of Medicine, Miami, Florida, USA
| |
Collapse
|
38
|
Xie S, Wei S, Ma X, Wang R, He T, Zhang Z, Yang J, Wang J, Chang L, Jing M, Li H, Zhou X, Zhao Y. Genetic alterations and molecular mechanisms underlying hereditary intrahepatic cholestasis. Front Pharmacol 2023; 14:1173542. [PMID: 37324459 PMCID: PMC10264785 DOI: 10.3389/fphar.2023.1173542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/16/2023] [Indexed: 06/17/2023] Open
Abstract
Hereditary cholestatic liver disease caused by a class of autosomal gene mutations results in jaundice, which involves the abnormality of the synthesis, secretion, and other disorders of bile acids metabolism. Due to the existence of a variety of gene mutations, the clinical manifestations of children are also diverse. There is no unified standard for diagnosis and single detection method, which seriously hinders the development of clinical treatment. Therefore, the mutated genes of hereditary intrahepatic cholestasis were systematically described in this review.
Collapse
Affiliation(s)
- Shuying Xie
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Shizhang Wei
- Department of Anatomy, Histology and Embryology, School of Basic Medical Sciences, Health Science Center, Peking University, Beijing, China
| | - Xiao Ma
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ruilin Wang
- Department of Pharmacy, 5th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Tingting He
- Department of Pharmacy, 5th Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhao Zhang
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ju Yang
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiawei Wang
- Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lei Chang
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Manyi Jing
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Haotian Li
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| | - Xuelin Zhou
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yanling Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Department of Pharmacy, Chinese PLA General Hospital, Beijing, China
| |
Collapse
|
39
|
Ebhohon E, Chung RT. Systematic review: efficacy of therapies for cholestatic pruritus. Therap Adv Gastroenterol 2023; 16:17562848231172829. [PMID: 37255856 PMCID: PMC10226044 DOI: 10.1177/17562848231172829] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 04/13/2023] [Indexed: 06/01/2023] Open
Abstract
Background Pruritus is a symptom of several cholestatic liver diseases (CLDs) that can impair health-related quality of life (HRQoL). Despite evidence-based guideline therapy, managing cholestatic pruritus (CP) remains challenging, thus making the need for newer, more effective therapeutic agents more evident. Objective Our study evaluated the efficacy of existing CP therapies. Design Systematic review. Data sources From inception until March 2023, we conducted a comprehensive search of MEDLINE, Cochrane, EMBASE, Scopus, ClinicalTrial.gov, and other sources, including pharmaceutical webpages and conference proceedings published in English that reported on CP interventions. Methods Two reviewers independently conducted screening and full-text review of articles with extraction conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines. The methodological quality of studies included in our qualitative synthesis was assessed by using the Cochrane ROBINS-I and ROBINS-II tools for interventional studies and the National Heart, Lung, and Blood Institute Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies. The primary outcome assessed in our systematic review was the severity of CP after therapy. Results Of 3293 screened articles, 92 studies were eligible for inclusion in the qualitative synthesis. Some patients' HRQoL improved with evidence-based standard therapy. Others, particularly those with severe and refractory CP, often required conversion to or addition of experimental noninvasive (e.g., ondansetron) or extracorporeal liver support to alleviate CP. In addition, studies investigating a newer class drug, the ileal bile acid transporter inhibitor (IBATi), demonstrate its effectiveness in reducing serum bile acid and alleviating CP with sustained improvement noted in patients with the inherited childhood cholestatic disorders - progressive familial intrahepatic cholestasis and Alagille syndrome. Conclusion Our findings consolidate data on the efficacy of guideline-based approaches and newer therapies for CP. While the initial findings are promising, additional clinical trials will be needed to determine the full extent of IBATi's efficacy and potential use in treating other common CLDs. These results provide a foundation for future research and highlight the need for continued investigation into the management and treatment of CLDs.
Collapse
Affiliation(s)
| | - Raymond T. Chung
- Gastrointestinal Division, Liver Center, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| |
Collapse
|
40
|
Rodrigo M, Dong X, Chien D, Karnsakul W. Cholestatic Pruritus in Children: Conventional Therapies and Beyond. BIOLOGY 2023; 12:biology12050756. [PMID: 37237568 DOI: 10.3390/biology12050756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/12/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023]
Abstract
Pruritus in the setting of cholestatic liver disease is difficult to treat and occurs in patients ranging in age from infancy to adulthood. Likely multifactorial in etiology, this symptom often involves multimodal therapy targeting several pathways and mechanisms proposed in the underlying etiology of cholestatic pruritus. Many patients in both the pediatric and adult populations continue to experience unrelenting pruritus despite maximal conventional therapy. Options are further limited in treating pediatric patients due to sparse data regarding medication safety and efficacy in younger patients. Conventional therapies for the treatment of cholestatic pruritus in children include ursodeoxycholic acid, cholestyramine, hydroxyzine, and rifampin. Certain therapies are more routinely used in the adult populations but with limited data available for use in child and adolescent patients, including opioid antagonists and selective serotonin reuptake inhibitors. Recently, ileal bile acid transport inhibitors have been shown to alleviate pruritus in many children with Alagille syndrome and progressive familial intrahepatic cholestasis and is an additional therapy available for consideration for these patients. Ultimately, surgical options such as biliary diversion or liver transplantation are considered in specific circumstances when medical therapies have been exhausted and pruritus remains debilitating. While further investigation regarding underlying etiologies and effective therapies are needed to better understand itch pathogenesis and treatment in pediatric cholestasis, current considerations beyond conventional management include the use of opioid antagonists, selective serotonin reuptake inhibitors, ileal bile acid transport inhibitors, and surgical intervention.
Collapse
Affiliation(s)
- Minna Rodrigo
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Xinzhong Dong
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Daphne Chien
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| |
Collapse
|
41
|
Ganschow R, Maucksch C. Odevixibat Treatment of Alagille Syndrome: A Case Report. JPGN REPORTS 2023; 4:e301. [PMID: 37200711 PMCID: PMC10187842 DOI: 10.1097/pg9.0000000000000301] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 02/14/2023] [Indexed: 05/20/2023]
Abstract
A male pediatric patient with elevated liver enzyme and bile acid levels, bile duct hypoplasia, mild liver fibrosis, and pruritus was initially diagnosed with progressive familial intrahepatic cholestasis. The patient did not respond to treatments of ursodeoxycholic acid and naltrexone. Subsequent treatment with odevixibat resulted in improvements in serum bile acid levels and pruritus within a few weeks of initiation. During the course of odevixibat treatment, genetic testing results and additional clinical findings indicated a diagnosis of Alagille syndrome, a condition that shares some clinical features with progressive familial intrahepatic cholestasis. Odevixibat treatment was continued off label, during which time the patient's serum bile acid levels dropped to within the normal limit and pruritus was completely ameliorated. This report suggests odevixibat may be an effective treatment option for Alagille syndrome.
Collapse
Affiliation(s)
- Rainer Ganschow
- From the Department of Pediatrics, University Children’s Hospital, Bonn, Germany
| | | |
Collapse
|
42
|
Zeng J, Fan J, Zhou H. Bile acid-mediated signaling in cholestatic liver diseases. Cell Biosci 2023; 13:77. [PMID: 37120573 PMCID: PMC10149012 DOI: 10.1186/s13578-023-01035-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/18/2023] [Indexed: 05/01/2023] Open
Abstract
Chronic cholestatic liver diseases, such as primary biliary cholangitis (PBC) and primary sclerosing cholangitis (PSC), are associated with bile stasis and gradually progress to fibrosis, cirrhosis, and liver failure, which requires liver transplantation. Although ursodeoxycholic acid is effective in slowing the disease progression of PBC, it has limited efficacy in PSC patients. It is challenging to develop effective therapeutic agents due to the limited understanding of disease pathogenesis. During the last decade, numerous studies have demonstrated that disruption of bile acid (BA) metabolism and intrahepatic circulation promotes the progression of cholestatic liver diseases. BAs not only play an essential role in nutrition absorption as detergents but also play an important role in regulating hepatic metabolism and modulating immune responses as key signaling molecules. Several excellent papers have recently reviewed the role of BAs in metabolic liver diseases. This review focuses on BA-mediated signaling in cholestatic liver disease.
Collapse
Affiliation(s)
- Jing Zeng
- Department of Microbiology and Immunology, Medical College of Virginia and Richmond VA Medical Center, Central Virginia Veterans Healthcare System, Virginia Commonwealth University, 1220 East Broad Street, MMRB-5044, Richmond, VA, 23298-0678, USA
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Jiangao Fan
- Department of Gastroenterology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Huiping Zhou
- Department of Microbiology and Immunology, Medical College of Virginia and Richmond VA Medical Center, Central Virginia Veterans Healthcare System, Virginia Commonwealth University, 1220 East Broad Street, MMRB-5044, Richmond, VA, 23298-0678, USA.
| |
Collapse
|
43
|
Echeverri-Mejía C, Ríos-Orozco SU, Lozada-Martínez ID, Narvaez-Rojas AR. Alagille syndrome: an orphan disease in Colombia and summary of recent advances in treatment and survival - a case report. Ann Med Surg (Lond) 2023; 85:1231-1234. [PMID: 37113962 PMCID: PMC10129178 DOI: 10.1097/ms9.0000000000000473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 03/18/2023] [Indexed: 04/29/2023] Open
Abstract
Alagille syndrome has been described as a multisystemic clinical spectrum caused by an autosomal dominant genetic disorder. Although it is estimated that there is 1 case per 100 000 live births, the prognosis for survival and quality of life for these patients is varied but tends to be negative. In Colombia, this condition is considered an orphan disease with difficult management due to the lack of specialized centers that have all the medical specialties and subspecialties. Some reports state that no more than 30 cases have been published in this country. Materials and methods The authors report a case of a male baby who, at 8 days old, he was taken to the general practitioner's outpatient clinic for persistent jaundice. At 3 months of age, he was reviewed by the pediatric gastroenterology department, which requested liver and biliary tract scintigraphy, showing atresia of the biliary tract, hepatomegaly, and the absence of a gallbladder. Results Liver transplantation is the definitive solution. However, in low- and middle-income countries, where there are no well-established organ transplantation programs, the prognosis for these patients is presumed to be worse. Conclusion Alagille syndrome is a rare disease that requires an accurate and early diagnosis and timely multidisciplinary management to reduce the impact of multisystemic complications. It is necessary to advance in transplant programs in low- and middle-income countries, to provide a solution to cases where there are no other therapeutic alternatives, and to contribute to the quality of life of the affected patient.
Collapse
Affiliation(s)
| | | | - Ivan D. Lozada-Martínez
- Medical and Surgical Research Center, Future Surgeons Chapter, Colombian Surgery Association, Bogotá, Colombia
| | - Alexis R. Narvaez-Rojas
- International Coalition on Surgical Research, Universidad Nacional Autónoma de Nicaragua, Managua, Nicaragua
- Breast Surgical Oncology Division, DeWitt Daughtry Family Department of Surgery, Jackson Health System/University of Miami Miller School of Medicine, Miami, Florida
- Corresponding author. Address: International Coalition on Surgical Research, Universidad Nacional Autónoma de Nicaragua, Managua, 663, Nicaragua. Tel number: +505 8565 9292. E-mail address: (A. Narvaez-Rojas)
| |
Collapse
|
44
|
Harpavat S, Hawthorne K, Setchell KDR, Rivas MN, Henn L, Beil CA, Karpen SJ, Ng VL, Alonso EM, Bezerra JA, Guthery SL, Horslen S, Loomes KM, McKiernan P, Magee JC, Merion RM, Molleston JP, Rosenthal P, Thompson RJ, Wang KS, Sokol RJ, Shneider BL. Serum bile acids as a prognostic biomarker in biliary atresia following Kasai portoenterostomy. Hepatology 2023; 77:862-873. [PMID: 36131538 PMCID: PMC9936974 DOI: 10.1002/hep.32800] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/22/2022] [Accepted: 09/04/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND AND AIMS In biliary atresia, serum bilirubin is commonly used to predict outcomes after Kasai portoenterostomy (KP). Infants with persistently high levels invariably need liver transplant, but those achieving normalized levels have a less certain disease course. We hypothesized that serum bile acid levels could help predict outcomes in the latter group. APPROACH AND RESULTS Participants with biliary atresia from the Childhood Liver Disease Research Network were included if they had normalized bilirubin levels 6 months after KP and stored serum samples from the 6-month post-KP clinic visit ( n = 137). Bile acids were measured from the stored serum samples and used to divide participants into ≤40 μmol/L ( n = 43) or >40 μmol/L ( n = 94) groups. At 2 years of age, the ≤40 μmol/L compared with >40 μmol/L group had significantly lower total bilirubin, aspartate aminotransferase, alanine aminotransferase, gamma-glutamyltransferase, bile acids, and spleen size, as well as significantly higher albumin and platelet counts. Furthermore, during 734 person-years of follow-up, those in the ≤40 μmol/L group were significantly less likely to develop splenomegaly, ascites, gastrointestinal bleeding, or clinically evident portal hypertension. The ≤40 μmol/L group had a 10-year cumulative incidence of liver transplant/death of 8.5% (95% CI: 1.1%-26.1%), compared with 42.9% (95% CI: 28.6%-56.4%) for the >40 μmol/L group ( p = 0.001). CONCLUSIONS Serum bile acid levels may be a useful prognostic biomarker for infants achieving normalized bilirubin levels after KP.
Collapse
Affiliation(s)
- Sanjiv Harpavat
- Division of Gastroenterology, Department of Pediatrics , Hepatology and Nutrition, Baylor College of Medicine and Texas Children's Hospital , Houston , Texas , USA
| | - Kieran Hawthorne
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Kenneth D R Setchell
- Division of Pathology and Laboratory Medicine , Cincinnati Children's Hospital Medical Center , Cincinnati , Ohio , USA
| | - Monica Narvaez Rivas
- Division of Pathology and Laboratory Medicine , Cincinnati Children's Hospital Medical Center , Cincinnati , Ohio , USA
| | - Lisa Henn
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Charlotte A Beil
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Saul J Karpen
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , Emory University School of Medicine , Atlanta , Georgia , USA
| | - Vicky L Ng
- Division of Gastroenterology, Hepatology and Nutrition , Hospital for Sick Children and University of Toronto , Toronto , Ontario , Canada
| | - Estella M Alonso
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , Ann and Robert H. Lurie Children's Hospital of Chicago , Chicago , Illinois , USA
| | - Jorge A Bezerra
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , Cincinnati Children's Hospital Medical Center , Cincinnati , Ohio , USA
| | - Stephen L Guthery
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , University of Utah , Salt Lake City , Utah , USA
| | - Simon Horslen
- Division of Gastroenterology and Hepatology, Department of Pediatrics , University of Washington Medical Center and Seattle Children's , Seattle , Washington , USA.,Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh , Pittsburgh , Pennsylvania , USA
| | - Kathy M Loomes
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , Perelman School of Medicine at the University of Pennsylvania and Children's Hospital of Philadelphia , Philadelphia , Pennsylvania , USA
| | - Patrick McKiernan
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh , Pittsburgh , Pennsylvania , USA
| | - John C Magee
- Department of Surgery, Section of Transplant Surgery , University of Michigan Medical School , Ann Arbor , Michigan , USA
| | - Robert M Merion
- Arbor Research Collaborative for Health , Ann Arbor , Michigan , USA
| | - Jean P Molleston
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , Indiana University School of Medicine and Riley Hospital for Children , Indianapolis , Indiana , USA
| | - Philip Rosenthal
- Division of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics , University of California San Francisco , San Francisco , California , USA
| | | | - Kasper S Wang
- Division of Pediatric Surgery, Department of Surgery , Children's Hospital of Los Angeles, University of Southern California , Los Angeles , California , USA
| | - Ronald J Sokol
- Department of Pediatrics, Section of Gastroenterology, Hepatology and Nutrition , University of Colorado School of Medicine and Children's Hospital Colorado , Aurora , Colorado , USA
| | - Benjamin L Shneider
- Division of Gastroenterology, Department of Pediatrics , Hepatology and Nutrition, Baylor College of Medicine and Texas Children's Hospital , Houston , Texas , USA
| | | |
Collapse
|
45
|
Nevens F, Trauner M, Manns MP. Primary biliary cholangitis as a roadmap for the development of novel treatments for cholestatic liver diseases †. J Hepatol 2023; 78:430-441. [PMID: 36272496 DOI: 10.1016/j.jhep.2022.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 10/07/2022] [Accepted: 10/07/2022] [Indexed: 11/16/2022]
Abstract
The discovery of nuclear receptors and transporters has contributed to the development of new drugs for the treatment of cholestatic liver diseases. Particular progress has been made in the development of second-line therapies for PBC. These new drugs can be separated into compounds primarily targeting cholestasis, molecules targeting fibrogenesis and molecules with immune-mediated action. Finally, drugs aimed at symptom relief (pruritus and fatigue) are also under investigation. Obeticholic acid is currently the only approved second-line therapy for PBC. Drugs in the late phase of clinical development include peroxisome proliferator-activated receptor agonists, norursodeoxycholic acid and NADPH oxidase 1/4 inhibitors.
Collapse
Affiliation(s)
- Frederik Nevens
- Department of Gastroenterology and Hepatology, University Hospital KU Leuven, Belgium; Centre of ERN RARE-LIVER.
| | - Michael Trauner
- Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Austria; Centre of ERN RARE-LIVER
| | - Michael P Manns
- Hannover Medical School, Hannover, Germany; Centre of ERN RARE-LIVER
| |
Collapse
|
46
|
Habash N, Ibrahim SH. The Global Alagille Alliance study: Redefining the natural history of Alagille syndrome. Hepatology 2023; 77:347-349. [PMID: 36036191 DOI: 10.1002/hep.32760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 08/22/2022] [Indexed: 01/28/2023]
Affiliation(s)
- Nawras Habash
- Division of Pediatric Gastroenterology and Hepatology , Mayo Clinic , Rochester , Minnesota , USA
| | | |
Collapse
|
47
|
Vandriel SM, Li L, She H, Wang J, Gilbert MA, Jankowska I, Czubkowski P, Gliwicz‐Miedzińska D, Gonzales EM, Jacquemin E, Bouligand J, Spinner NB, Loomes KM, Piccoli DA, D'Antiga L, Nicastro E, Sokal É, Demaret T, Ebel NH, Feinstein JA, Fawaz R, Nastasio S, Lacaille F, Debray D, Arnell H, Fischler B, Siew S, Stormon M, Karpen SJ, Romero R, Kim KM, Baek WY, Hardikar W, Shankar S, Roberts AJ, Evans HM, Jensen MK, Kavan M, Sundaram SS, Chaidez A, Karthikeyan P, Sanchez MC, Cavalieri ML, Verkade HJ, Lee WS, Squires JE, Hajinicolaou C, Lertudomphonwanit C, Fischer RT, Larson‐Nath C, Mozer‐Glassberg Y, Arikan C, Lin HC, Bernabeu JQ, Alam S, Kelly DA, Carvalho E, Ferreira CT, Indolfi G, Quiros‐Tejeira RE, Bulut P, Calvo PL, Önal Z, Valentino PL, Desai DM, Eshun J, Rogalidou M, Dezsőfi A, Wiecek S, Nebbia G, Pinto RB, Wolters VM, Tamara ML, Zizzo AN, Garcia J, Schwarz K, Beretta M, Sandahl TD, Jimenez‐Rivera C, Kerkar N, Brecelj J, Mujawar Q, Rock N, Busoms CM, Karnsakul W, Lurz E, Santos‐Silva E, Blondet N, Bujanda L, Shah U, Thompson RJ, Hansen BE, Kamath BM. Natural history of liver disease in a large international cohort of children with Alagille syndrome: Results from the GALA study. Hepatology 2023; 77:512-529. [PMID: 36036223 PMCID: PMC9869940 DOI: 10.1002/hep.32761] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND AIMS Alagille syndrome (ALGS) is a multisystem disorder, characterized by cholestasis. Existing outcome data are largely derived from tertiary centers, and real-world data are lacking. This study aimed to elucidate the natural history of liver disease in a contemporary, international cohort of children with ALGS. APPROACH AND RESULTS This was a multicenter retrospective study of children with a clinically and/or genetically confirmed ALGS diagnosis, born between January 1997 and August 2019. Native liver survival (NLS) and event-free survival rates were assessed. Cox models were constructed to identify early biochemical predictors of clinically evident portal hypertension (CEPH) and NLS. In total, 1433 children (57% male) from 67 centers in 29 countries were included. The 10 and 18-year NLS rates were 54.4% and 40.3%. By 10 and 18 years, 51.5% and 66.0% of children with ALGS experienced ≥1 adverse liver-related event (CEPH, transplant, or death). Children (>6 and ≤12 months) with median total bilirubin (TB) levels between ≥5.0 and <10.0 mg/dl had a 4.1-fold (95% confidence interval [CI], 1.6-10.8), and those ≥10.0 mg/dl had an 8.0-fold (95% CI, 3.4-18.4) increased risk of developing CEPH compared with those <5.0 mg/dl. Median TB levels between ≥5.0 and <10.0 mg/dl and >10.0 mg/dl were associated with a 4.8 (95% CI, 2.4-9.7) and 15.6 (95% CI, 8.7-28.2) increased risk of transplantation relative to <5.0 mg/dl. Median TB <5.0 mg/dl were associated with higher NLS rates relative to ≥5.0 mg/dl, with 79% reaching adulthood with native liver ( p < 0.001). CONCLUSIONS In this large international cohort of ALGS, only 40.3% of children reach adulthood with their native liver. A TB <5.0 mg/dl between 6 and 12 months of age is associated with better hepatic outcomes. These thresholds provide clinicians with an objective tool to assist with clinical decision-making and in the evaluation of therapies.
Collapse
Affiliation(s)
- Shannon M. Vandriel
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Canada
| | - Li‐Ting Li
- The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Huiyu She
- The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Jian‐She Wang
- The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, Shanghai, China
| | - Melissa A. Gilbert
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, The Children’s Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Irena Jankowska
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children's Memorial Health Institute, Warsaw, Poland
| | - Piotr Czubkowski
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children's Memorial Health Institute, Warsaw, Poland
| | - Dorota Gliwicz‐Miedzińska
- Department of Gastroenterology, Hepatology, Nutrition Disturbances and Pediatrics, The Children's Memorial Health Institute, Warsaw, Poland
| | - Emmanuel M. Gonzales
- Pediatric Hepatology and Liver Transplantation Unit, National Reference Centre for Rare Pediatric Liver Diseases (Biliary Atresia and Genetic Cholestasis), FILFOIE, ERN RARE LIVER, Bicêtre Hospital, AP‐HP and Inserm U1193, Hepatinov, Université Paris‐Saclay, Le Kremlin‐Bicêtre, France
| | - Emmanuel Jacquemin
- Pediatric Hepatology and Liver Transplantation Unit, National Reference Centre for Rare Pediatric Liver Diseases (Biliary Atresia and Genetic Cholestasis), FILFOIE, ERN RARE LIVER, Bicêtre Hospital, AP‐HP and Inserm U1193, Hepatinov, Université Paris‐Saclay, Le Kremlin‐Bicêtre, France
| | - Jérôme Bouligand
- Service de Génétique Moléculaire, Pharmacogénétique et Hormonologie, Hôpitaux Universitaires Paris‐Saclay, Assistance Publique‐Hôpitaux de Paris, Centre Hospitalier Universitaire de Bicêtre, Le Kremlin‐Bicêtre, France
| | - Nancy B. Spinner
- Division of Genomic Diagnostics, Department of Pathology and Laboratory Medicine, The Children’s Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Kathleen M. Loomes
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - David A. Piccoli
- Division of Gastroenterology, Hepatology and Nutrition, The Children's Hospital of Philadelphia and the University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Lorenzo D'Antiga
- Pediatric Hepatology, Gastroenterology and Transplantation, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Emanuele Nicastro
- Pediatric Hepatology, Gastroenterology and Transplantation, Ospedale Papa Giovanni XXIII, Bergamo, Italy
| | - Étienne Sokal
- Service De Gastroentérologie & Hépatologie Pédiatrique, Cliniques Universitaires Saint‐Luc, Brussels, Belgium
| | - Tanguy Demaret
- Service De Gastroentérologie & Hépatologie Pédiatrique, Cliniques Universitaires Saint‐Luc, Brussels, Belgium
| | - Noelle H. Ebel
- Division of Gastroenterology, Department of Pediatrics, Stanford University School of Medicine, Palo Alto, California, USA
| | - Jeffrey A. Feinstein
- Department of Pediatrics (Cardiology), Stanford University School of Medicine, Lucile Packard Children's Hospital, Palo Alto, California, USA
| | - Rima Fawaz
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Silvia Nastasio
- Division of Gastroenterology, Hepatology, & Nutrition, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Florence Lacaille
- Department of Pediatric Gastroenterology, and Nutrition, Necker‐Enfants Malades Hospital, University of Paris, Paris, France
| | - Dominique Debray
- Pediatric Liver Unit, National Reference Centre for Rare Pediatric Liver Diseases (Biliary Atresia and Genetic Cholestasis), FILFOIE, ERN RARE LIVER, Necker‐Enfants Malades Hospital, University of Paris, Paris, France
| | - Henrik Arnell
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Björn Fischler
- Department of Paediatric Gastroenterology, Hepatology and Nutrition, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
- CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Susan Siew
- Department of Gastroenterology, The Children's Hospital at Westmead, Sydney, Australia
| | - Michael Stormon
- Department of Gastroenterology, The Children's Hospital at Westmead, Sydney, Australia
| | - Saul J. Karpen
- Division of Pediatric Gastroenterology, Hepatology & Nutrition, Children's Healthcare of Atlanta & Emory University School of Medicine, Atlanta, Georgia, USA
| | - Rene Romero
- Division of Pediatric Gastroenterology, Hepatology & Nutrition, Children's Healthcare of Atlanta & Emory University School of Medicine, Atlanta, Georgia, USA
| | - Kyung Mo Kim
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children's Hospital, Seoul, Republic of Korea
| | - Woo Yim Baek
- Department of Pediatrics, University of Ulsan College of Medicine, Asan Medical Center Children's Hospital, Seoul, Republic of Korea
| | - Winita Hardikar
- Department of Gastroenterology and Clinical Nutrition, Royal Children's Hospital, Melbourne, Australia
| | - Sahana Shankar
- Mazumdar Shaw Medical Center, Narayana Health, Bangalore, India
| | - Amin J. Roberts
- Department of Paediatric Gastroenterology, Starship Child Health, Auckland, New Zealand
| | - Helen M. Evans
- Department of Paediatric Gastroenterology, Starship Child Health, Auckland, New Zealand
| | - M. Kyle Jensen
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Utah, Salt Lake City, Utah, USA
| | - Marianne Kavan
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Utah, Salt Lake City, Utah, USA
| | - Shikha S. Sundaram
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics and the Digestive Health Institute, Children's Hospital of Colorado and University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Alexander Chaidez
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics and the Digestive Health Institute, Children's Hospital of Colorado and University of Colorado School of Medicine, Aurora, Colorado, USA
| | | | - Maria Camila Sanchez
- Pediatric Gastroenterology and Hepatology Division, Hospital Italiano Buenos Aires, Buenos Aires, Argentina
| | - Maria Lorena Cavalieri
- Pediatric Gastroenterology and Hepatology Division, Hospital Italiano Buenos Aires, Buenos Aires, Argentina
| | - Henkjan J. Verkade
- Department of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University Medical Center Groningen, Groningen, The Netherlands
| | - Way Seah Lee
- Faculty of Medicine, Department of Paediatrics, University of Malaya, Kuala Lumpur, Malaysia
| | - James E. Squires
- Division of Pediatric Gastroenterology and Hepatology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Christina Hajinicolaou
- Division of Paediatric Gastroenterology, Department of Paediatrics and Child Health, Chris Hani Baragwanath Academic Hospital, University of the Witwatersrand, Johannesburg, South Africa
| | - Chatmanee Lertudomphonwanit
- Division of Gastroenterology, Department of Pediatrics, Ramathibodi Hospital Mahidol University, Bangkok, Thailand
| | - Ryan T. Fischer
- Department of Gastroenterology, Section of Hepatology, Children's Mercy Kansas City, Kansas City, Missouri, USA
| | - Catherine Larson‐Nath
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, University of Minnesota, Minneapolis, Minnesota, USA
| | - Yael Mozer‐Glassberg
- Institute of Gastroenterology, Nutrition and Liver Diseases, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Cigdem Arikan
- Department of Pediatric Gastroenterology and Organ Transplant, Koc University School of Medicine, Istanbul, Turkey
| | - Henry C. Lin
- Division of Pediatric Gastroenterology, Department of Pediatrics, Oregon Health and Science University, Portland, Oregon, USA
| | - Jesus Quintero Bernabeu
- Pediatric Hepatology and Liver Transplant Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Seema Alam
- Department of Pediatric Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Deirdre A. Kelly
- Liver Unit, Birmingham Women's & Children's Hospital NHS Trust, University of Birmingham, Birmingham, UK
| | - Elisa Carvalho
- Pediatric Gastroenterology Department, Hospital da Criança de Brasília, Centro Universitário de Brasília, Brasília, Brazil
| | - Cristina Targa Ferreira
- Pediatric Gastroenterology Service, Hospital da Criança Santo Antôni, Universidade Federal de Ciências da Saúde de Porto Alegre, Complexo Hospitalar Santa Casa, Porto Alegre, RS, Brazil
| | - Giuseppe Indolfi
- Paediatric and Liver Unit, Department Neurofarba, University of Florence and Meyer Children's University Hospital, Florence, Italy
| | - Ruben E. Quiros‐Tejeira
- Department of Pediatrics, Children's Hospital & Medical Center and University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Pinar Bulut
- Division of Pediatric Gastroenterology and Hepatology, Phoenix Children's Hospital, Phoenix, USA
| | - Pier Luigi Calvo
- Pediatric Gastroenterology Unit, Regina Margherita Children's Hospital, Azienda Ospedaliera‐Universitaria Citta' della Salute e della Scienza, Turin, Italy
| | - Zerrin Önal
- Pediatric Gastroenterology, Hepatology and Nutrition Department, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Pamela L. Valentino
- Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Dev M. Desai
- Solid Organ Transplant Department, Children's Health – Children's Medical Center, Dallas, Texas, USA
| | - John Eshun
- Department of Pediatric Gastroenterology, Le Bonheur Children's Hospital, The University of Tennessee Health Science Center, Memphis, Texas, USA
| | - Maria Rogalidou
- Division of Gastroenterology & Hepatology, First Department of Pediatrics, “Agia Sofia” Children's Hospital, University of Athens, Athens, Greece
| | - Antal Dezsőfi
- First Department of Paediatrics, Semmelweis University, Budapest, Hungary
| | - Sabina Wiecek
- Department of Pediatrics, Medical University of Silesia in Katowice, Katowice, Poland
| | - Gabriella Nebbia
- Servizio di Epatologia Pediatrica, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Raquel Borges Pinto
- Division of Pediatric Gastroenterology of Hospital da Criança Conceição do Grupo Hospitalar Conceição, Porto Alegre, RS, Brazil
| | - Victorien M. Wolters
- Department of Pediatric Gastroenterology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Andréanne N. Zizzo
- Division of Paediatric Gastroenterology and Hepatology, London Health Sciences Centre, Children's Hospital, Western University, London, Ontario, Canada
| | - Jennifer Garcia
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Miami Transplant Institute, University of Miami, Miami, Florida, USA
| | - Kathleen Schwarz
- Division of Pediatric Gastroenterology, University of California San Diego, Rady Children's Hospital San Diego, San Diego, California, USA
| | - Marisa Beretta
- Faculty of Health Sciences, Wits Donald Gordon Medical Centre, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Carolina Jimenez‐Rivera
- Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital of Eastern Ontario, Ottawa, Canada
| | - Nanda Kerkar
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Rochester Medical Center, Rochester, New York, USA
| | - Jernej Brecelj
- Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Faculty of Medicine, University Medical Center Ljubljana, Ljubljana, Slovenia
| | - Quais Mujawar
- Section of Pediatric Gastroenterology, Department of Pediatrics, University of Manitoba, Winnipeg, Canada
| | - Nathalie Rock
- Department of Paediatrics, Gynaecology and Obstetrics, Geneva University Hospitals, University of Geneva, Geneva, Switzerland
| | - Cristina Molera Busoms
- Pediatric Gastroenterology Hepatology and Nutrition Unit, Hospital Sant Joan de Déu, Esplugues de Llobregat, Spain
| | - Wikrom Karnsakul
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Eberhard Lurz
- Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
| | - Ermelinda Santos‐Silva
- Pediatric Gastroenterology Unit, Centro Hospitalar Universitário Do Porto, Porto, Portugal
| | - Niviann Blondet
- Gastroenterology and Hepatology, Seattle Children's Hospital, Seattle, Washington, USA
| | - Luis Bujanda
- Department of Hepatology and Gastroenterology, Biodonostia Health Research Institute, Donostia University Hospital, Universidad del País Vasco (UPV/EHU), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), San Sebastián, Spain
| | - Uzma Shah
- Harvard Medical School, Massachusetts General Hospital for Children, Boston, Massachusetts, USA
| | | | - Bettina E. Hansen
- Toronto General Hospital University Health Network, Toronto, Ontario, Canada
- Institute of Health Policy, Management and Evaluation, Toronto, Ontario, Canada
| | - Binita M. Kamath
- Division of Gastroenterology, Hepatology and Nutrition, The Hospital for Sick Children and the University of Toronto, Toronto, Canada
| |
Collapse
|
48
|
Pathogenesis and Treatment of Pruritus Associated with Chronic Kidney Disease and Cholestasis. Int J Mol Sci 2023; 24:ijms24021559. [PMID: 36675074 PMCID: PMC9864517 DOI: 10.3390/ijms24021559] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/07/2023] [Accepted: 01/11/2023] [Indexed: 01/14/2023] Open
Abstract
Itching is an unpleasant sensation that provokes the desire to scratch. In general, itching is caused by dermatologic diseases, but it can also be caused by systemic diseases. Since itching hampers patients' quality of life, it is important to understand the appropriate treatment and pathophysiology of pruritus caused by systemic diseases to improve the quality of life. Mechanisms are being studied through animal or human studies, and various treatments are being tested through clinical trials. We report current trends of two major systemic diseases: chronic kidney disease and cholestatic liver disease. This review summarizes the causes and pathophysiology of systemic diseases with pruritus and appropriate treatments. This article will contribute to patients' quality of life. Further research will help understand the mechanisms and develop new strategies in the future.
Collapse
|
49
|
Gambella A, Kalantari S, Cadamuro M, Quaglia M, Delvecchio M, Fabris L, Pinon M. The Landscape of HNF1B Deficiency: A Syndrome Not Yet Fully Explored. Cells 2023; 12:cells12020307. [PMID: 36672242 PMCID: PMC9856658 DOI: 10.3390/cells12020307] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/05/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
The hepatocyte nuclear factor 1β (HNF1B) gene is involved in the development of specialized epithelia of several organs during the early and late phases of embryogenesis, performing its function mainly by regulating the cell cycle and apoptosis pathways. The first pathogenic variant of HNF1B (namely, R177X) was reported in 1997 and is associated with the maturity-onset diabetes of the young. Since then, more than 230 different HNF1B variants have been reported, revealing a multifaceted syndrome with complex and heterogenous genetic, pathologic, and clinical profiles, mainly affecting the pediatric population. The pancreas and kidneys are the most frequently affected organs, resulting in diabetes, renal cysts, and a decrease in renal function, leading, in 2001, to the definition of HNF1B deficiency syndrome, including renal cysts and diabetes. However, several other organs and systems have since emerged as being affected by HNF1B defect, while diabetes and renal cysts are not always present. Especially, liver involvement has generally been overlooked but recently emerged as particularly relevant (mostly showing chronically elevated liver enzymes) and with a putative relation with tumor development, thus requiring a more granular analysis. Nowadays, HNF1B-associated disease has been recognized as a clinical entity with a broader and more variable multisystem phenotype, but the reasons for the phenotypic heterogeneity are still poorly understood. In this review, we aimed to describe the multifaceted nature of HNF1B deficiency in the pediatric and adult populations: we analyzed the genetic, phenotypic, and clinical features of this complex and misdiagnosed syndrome, covering the most frequent, unusual, and recently identified traits.
Collapse
Affiliation(s)
- Alessandro Gambella
- Department of Medical Sciences, University of Turin, 10126 Turin, Italy
- Division of Liver and Transplant Pathology, University of Pittsburgh, Pittsburgh, PA 15232, USA
| | - Silvia Kalantari
- Department of Medical Sciences, University of Turin, 10126 Turin, Italy
| | | | - Marco Quaglia
- Department of Translational Medicine, University of Piemonte Orientale, 28100 Novara, Italy
| | - Maurizio Delvecchio
- Metabolic Disease and Genetics Unit, Giovanni XXIII Children’s Hospital, AOU Policlinico di Bari, 70124 Bari, Italy
- Correspondence:
| | - Luca Fabris
- Department of Molecular Medicine, University of Padova, 35121 Padua, Italy
- Liver Center, Digestive Disease Section, Department of Internal Medicine, Yale University, New Haven, CT 06510, USA
| | - Michele Pinon
- Pediatric Gastroenterology Unit, Regina Margherita Children’s Hospital, AOU Città della Salute e della Scienza di Torino, 10126 Turin, Italy
| |
Collapse
|
50
|
Degtyareva AV, Savelyeva EI, Filippova EA, Dokshukina AA, Isaeva MK, Zubkov VV, Albegova MB. Maralixibat is an alternative to liver transplantation in children with Alagille syndrome. ROSSIYSKIY VESTNIK PERINATOLOGII I PEDIATRII (RUSSIAN BULLETIN OF PERINATOLOGY AND PEDIATRICS) 2023. [DOI: 10.21508/1027-4065-2022-67-6-123-130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Alagille syndrome is a genetic multisystem disease in which one of the key symptoms that significantly impairs quality of life is cholestatic pruritus. Until recently the only treatment opportunity was liver transplantation. In 2021 the new drug maralixibat (Marixibat) was approved and registered in the United States. This article presents the first experience of using this medication in Russia. The patient stopped itching, significantly reduced the serum bile acids and also improved physical development within 7 months of therapy. Our first experience of using maralixibat in Russia, as well as the available literature data indicates a significant improvement in the quality of life of patients and allows us to consider this drug as an alternative to liver transplantation.
Collapse
Affiliation(s)
- A. V. Degtyareva
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology; Sechenov First Moscow State Medical University
| | | | - E. A. Filippova
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology; Sechenov First Moscow State Medical University
| | - A. A. Dokshukina
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology
| | - M. Kh. Isaeva
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology
| | - V. V. Zubkov
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology
| | - M. B. Albegova
- Kulakov National Medical Research Center for Obstetrics, Gynecology and Perinatology
| |
Collapse
|