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ClinicalTrials.gov public records Last synced Oct 23, 2026, 8:06 PM EDT

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Showing 1–24 of 103 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Metabolic Encephalopathy Clear all
Completed Phase 2 Interventional

Pilot Study For Hypothermia Treatment In Hyperammonemic Encephalopathy In Neonates And Very Young Infants

NCT01624311
View directory record Official record
Conditions
Urea Cycle Disorders, Organic Acidemias
Interventions
Therapeutic Hypothermia, Standard of Care Therapy
Other
Lead sponsor
Uta Lichter-Konecki
Other
Eligibility
1 Day to 30 Days
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
3
States / cities
Washington D.C., District of Columbia • New York, New York • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jun 1, 2015 · Synced Oct 23, 2026, 8:06 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Biofluid Research on Age-Related or Inherited Neurodegeneration

NCT07798700
View directory record Official record
Conditions
Frontotemporal Degeneration (FTD), ALS (Amyotrophic Lateral Sclerosis), Primary Progressive Aphasia (PPA), Familial Frontotemporal Lobar Degeneration (fFTLD), Fronto-temporal Lobar Dementia, Dementia With Lewy Bodies (DLB), Cortical Basal Syndrome (CBS), Alzheimer's Disease (AD), Progressive Supranuclear Palsy(PSP), Parkinson's Disease (PD), Parkinson's Disease Dementia (PDD), Limbic-predominant Age-related TDP-43 Encephalopathy (LATE), Posterior Cortical Atrophy (PCA), Primary Lateral Sclerosis (PLS), Primary Muscular Atrophy (PMA)
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2070
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 1 Interventional

Oral Fecal Transplant in Cirrhosis

NCT03152188
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis, Liver
Interventions
FMT, Placebo
Drug · Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
21 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
2
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 19, 2021 · Synced Oct 23, 2026, 8:06 PM EDT
Terminated Phase 4 Interventional Results available

Efficacy, Safety, And Pharmacokinetics Of Rifaximin In Subjects With Severe Hepatic Impairment And Hepatic Encephalopathy

NCT01846663
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Placebo, Rifaximin
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
28
States / cities
Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 22 more
Source: ClinicalTrials.gov public record
Updated Jan 9, 2024 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy of AST-120 Compared to Lactulose in Patients With Hepatic Encephalopathy

NCT00558038
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
AST-120, lactulose
Drug
Lead sponsor
Ocera Therapeutics
Industry
Eligibility
18 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
17
States / cities
Birmingham, Alabama • Los Angeles, California • San Diego, California + 11 more
Source: ClinicalTrials.gov public record
Updated May 30, 2014 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Effect of Brief Dietary Intervention on Ammonia Levels

NCT05376488
View directory record Official record
Conditions
Cirrhosis, Hepatic Encephalopathy
Interventions
One meal
Other
Lead sponsor
Hunter Holmes Mcguire Veteran Affairs Medical Center
Federal
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Oct 23, 2026, 8:06 PM EDT
Not listed No phase listed Observational

Flicker App for Minimal Hepatic Encephalopathy

NCT04415294
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Critical flicker frequency
Diagnostic Test
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 11, 2022 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Not applicable Interventional

CAREGIVER: A Trial to Improve the Burden and Distress of Caring for Persons With Decompensated Cirrhosis

NCT04205396
View directory record Official record
Conditions
Caregivers
Interventions
Written emotional disclosure, Resilience training, No treatment
Behavioral · Other
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 15, 2022 · Synced Oct 23, 2026, 8:06 PM EDT
Withdrawn Phase 3 Interventional

A Randomized Comparison of Rifaximin Versus Lactulose in Hospitalized Cirrhotic Patients With Renal Failure

NCT02086825
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Rifaximin, Lactulose
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 2, 2016 · Synced Oct 23, 2026, 8:06 PM EDT
Active, not recruiting Phase 2 Interventional

TReatment for ImmUne Mediated PathopHysiology

NCT04862221
View directory record Official record
Conditions
Acute Liver Failure, Fulminant Hepatic Failure, Hepatic Encephalopathy, Acute Liver Injury, Immune Dysregulation
Interventions
High-dose methylprednisolone, Equine anti-thymocyte globulin, Prednisolone, Placebo for prednisolone, Placebo for infusions, Diphenhydramine, Methylprednisolone
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
1 Year to 18 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
17
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Default Mode Network fMRI Maps as a Predictive Index of Hepatic Encephalopathy Outcome

NCT02083367
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis, Nonalcoholic Steatohepatitis, Hepatitis C
Interventions
Not listed
Lead sponsor
OSF Healthcare System
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Peoria, Illinois
Source: ClinicalTrials.gov public record
Updated May 25, 2015 · Synced Oct 23, 2026, 8:06 PM EDT
Withdrawn No phase listed Observational

The Effect of a Large-volume Paracentesis on Fatigue, Sleep, and Quality of Life in Cirrhosis

NCT01777971
View directory record Official record
Conditions
Cirrhosis, Hepatic Encephalopathy, Ascites, Fatigue
Interventions
Not listed
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 75 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 2 Interventional Results available

VE303 for Treatment of Hepatic Encephalopathy (HE)

NCT04899115
View directory record Official record
Conditions
Cirrhosis, Hepatic Encephalopathy
Interventions
Placebo, VE303, oral vancomycin
Drug
Lead sponsor
Patricia Bloom
Other
Eligibility
18 Years to 75 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 7, 2025 · Synced Oct 23, 2026, 8:06 PM EDT
Terminated Phase 4 Interventional

Quality of Life and Nutritional Improvements in Cirrhotic Patients

NCT01842113
View directory record Official record
Conditions
Liver Cirrhosis, Hepatic Encephalopathy, Portal Hypertension
Interventions
Rifaximin, Lactulose, Lactulose Placebo, Rifaximin Placebo
Drug
Lead sponsor
Tampa General Hospital
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2013
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Sep 23, 2013 · Synced Oct 23, 2026, 8:06 PM EDT
Terminated Phase 1 Interventional

BIIB092 in Primary Tauopathies: CBS, nfvPPA, sMAPT, and TES

NCT03658135
View directory record Official record
Conditions
Primary Tauopathies, Corticobasal Degeneration Syndrome, Frontotemporal Lobar Degeneration With Tau Inclusions, MAPT Mutation Carriers, Symptomatic, Traumatic Encephalopathy Syndrome, Nonfluent Aphasia, Progressive
Interventions
BIIB092, Placebo
Drug · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
35 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2019 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 1 Interventional

Probiotic Lactobacillus GG (LGG) in Patients With Minimal Hepatic Encephalopathy

NCT00992290
View directory record Official record
Conditions
Minimal Hepatic Encephalopathy
Interventions
Lactobacillus GG, Placebo
Biological
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 65 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 7, 2014 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 4 Interventional Results available

The Safety/Efficacy of Rifaximin With/Without Lactulose in Participants With A History of Recurrent Hepatic Encephalopathy

NCT01842581
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis
Interventions
Rifaximin, Lactulose
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
43
States / cities
Phoenix, Arizona • Coronado, California • Fresno, California + 35 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2019 · Synced Oct 23, 2026, 8:06 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

A Study to Evaluate Efficacy and Safety of Vatiquinone for Treating Mitochondrial Disease in Participants With Refractory Epilepsy

NCT04378075
View directory record Official record
Conditions
Mitochondrial Diseases, Drug Resistant Epilepsy, Leigh Disease, Leigh Syndrome, Mitochondrial Encephalopathy (MELAS), Pontocerebellar Hypoplasia Type 6 (PCH6), Alpers Disease, Alpers Syndrome
Interventions
Vatiquinone, Placebo
Drug · Other
Lead sponsor
PTC Therapeutics
Industry
Eligibility
Up to 20 Years
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
12
States / cities
San Diego, California • Stanford, California • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Not yet recruiting Phase 2 Interventional

Microbiota trAnSplant ThERaPy In hEpatiC Encephalopathy (MASTERPIECE)

NCT07528690
View directory record Official record
Conditions
Hepatic Encephalopathy, Cirrhosis
Interventions
Microbiota transplant therapy (MTT) capsules, Placebo capsule
Biological · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
21 Years and older
Enrollment
162 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
3
States / cities
West Haven, Connecticut • Dallas, Texas • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 14, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Completed No phase listed Observational

Speech in Hepatic Encephalopathy (HE)

NCT05425316
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Home Recordings, In-patient Recordings, Same-Day Study Visit - Regular Appointment, Same-Day Study Visit - Procedure, Phone Call Follow-up Visits
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
251 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Not applicable Interventional

Comparing Ascites Relief In Two Standard Treatments: Large Volume Paracentesis Vs. Early Tips Using Viatorr Controlled Expansion Stents

NCT04315571
View directory record Official record
Conditions
Hypertension, Portal, Ascites
Interventions
Gore® Viatorr® Endoprosthesis with controlled expansion, Large Volume Paracentesis with albumin infusion
Device · Procedure
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 4 Interventional Results available

Cystagon to Treat Infantile Neuronal Ceroid Lipofuscinosis

NCT00028262
View directory record Official record
Conditions
Infantile Neronal Ceroid Lipofuscinosis
Interventions
Cystagon
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
6 Months to 3 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 27, 2016 · Synced Oct 23, 2026, 8:06 PM EDT
Completed Phase 3 Interventional Results available

Safety and Tolerability Study of Rifaximin in Participants With a History of Hepatic Encephalopathy

NCT00686920
View directory record Official record
Conditions
Hepatic Encephalopathy
Interventions
Rifaximin
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
322 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
31
States / cities
Birmingham, Alabama • Aurora, California • Fresno, California + 28 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2019 · Synced Oct 23, 2026, 8:06 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

RENEW: Study of Porcine Liver Support in Participants With Acute-on-Chronic Liver Failure

NCT07429838
View directory record Official record
Conditions
Acute on Chronic Liver Failure (ACLF), Hepatic Encephalopathy (HE)
Interventions
metra® Extracorporeal Liver Cross-Circulation (ELC) system (OrganOx), EGEN-5784 (genetically engineered porcine liver)
Device · Biological
Lead sponsor
eGenesis, INC
Industry
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
St Louis, Missouri • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Oct 23, 2026, 8:06 PM EDT