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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT05793190
Other study ID # GMALD
Secondary ID
Status Active, not recruiting
Phase
First received
Last updated
Start date April 15, 2021
Est. completion date November 30, 2023

Study information

Verified date March 2023
Source Chuncheon Sacred Heart Hospital
Contact n/a
Is FDA regulated No
Health authority
Study type Observational [Patient Registry]

Clinical Trial Summary

The fecal mycobiome, which refers to the community of fungi that resides in the human gut, is an important component of the gut microbiome. Research has shown that changes in the gut microbiome, including alterations in the fecal mycobiome, may play a role in the development and progression of alcoholic liver disease (ALD).One study published in the journal Gut Microbes found that individuals with ALD had a different gut microbiome composition compared to healthy individuals, including alterations in the levels of certain fungal species. Specifically, the study found that there was an increase in the abundance of the fungal genus Saccharomyces in individuals with ALD. This is significant because Saccharomyces is known to produce ethanol, which can contribute to liver damage in individuals with ALD.Another study published in the journal PLOS One found that there were differences in the levels of fungal metabolites in the fecal samples of individuals with ALD compared to healthy individuals. Specifically, the study found that there were higher levels of certain fungal metabolites, including acetaldehyde and ethanol, in the fecal samples of individuals with ALD.These findings suggest that the fecal mycobiome may play an important role in the development and progression of ALD. Maintaining a healthy gut microbiome through a balanced diet and other lifestyle factors may be an important strategy for preventing and managing ALD, and further research into the role of the fecal mycobiome in this condition is warranted.


Description:

Fecal samples were collected prospectively from 120 participants including Healthy Control (HC=20), Alcoholic hepatitis (AH=30), alcoholic cirrhosis (AC=30), Acute-on-Chronic Liver Failure (ACLF=15), Alcoholic Hepatocellular carcinoma (AHCC=25). Mycobial DNA were isolated from collected fecal samples by using DNeasy powersoil pro kit and subjected for nuclear ribosomal RNA internal transcribed spacer (ITS) gene sequencing were performed using the MiSeq sequencer on the illumine platform and based on the phylogenetic relationship, ITS-based Mycobiome Taxonomic Profiling was performed to discovery gut mycobial compositional shift along with ALD severity progression. To discover compositional shift along with ALD severity progression, various statistical analysis method is going to be performed which includes standard mean based differential analysis such ANOVA, Principle component analysis to established the basic compositional variation in all the groups.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 500
Est. completion date November 30, 2023
Est. primary completion date January 25, 2023
Accepts healthy volunteers
Gender All
Age group N/A and older
Eligibility Inclusion Criteria: - Adult patients admitted to Chuncheon Sacred Hallym hospital with a diagnosis of ALD will be screened and potentially recruited. - ALD patients will be identified based on the recent American Association of the Study of Liver Disease (AASLD) guidelines: 1. onset of jaundice within 8 weeks, 2. ongoing consumption of ethanol of >40 for women or >60 in men for 6 months or <60 days of abstinence before onset of jaundice, 3. Aspartate transaminase (AST>50), AST:ALT>1.5 and both <400 IU/L, 4. Total bilirubin >3, or liver biopsy showing histologic features of ALD. Exclusion Criteria: - If patients have a history of inflammatory bowel disease, irritable bowel syndrome, gastrointestinal malignancy, or gastrointestinal surgery. - Patients with acute pancreatitis or history of chronic pancreatitis will also be excluded. The diagnosis of acute pancreatitis and chronic pancreatitis will be ascertained from their history and physical.

Study Design


Locations

Country Name City State
Korea, Republic of Department of Internal Medicine, Hallym University Chuncheon Sacred Heart Hospital Chuncheon Gangwondo

Sponsors (1)

Lead Sponsor Collaborator
Chuncheon Sacred Heart Hospital

Country where clinical trial is conducted

Korea, Republic of, 

References & Publications (5)

Demir M, Lang S, Hartmann P, Duan Y, Martin A, Miyamoto Y, Bondareva M, Zhang X, Wang Y, Kasper P, Bang C, Roderburg C, Tacke F, Steffen HM, Goeser T, Kruglov A, Eckmann L, Starkel P, Fouts DE, Schnabl B. The fecal mycobiome in non-alcoholic fatty liver disease. J Hepatol. 2022 Apr;76(4):788-799. doi: 10.1016/j.jhep.2021.11.029. Epub 2021 Dec 10. — View Citation

Hindson J. Distinct faecal mycobiome in patients with NAFLD. Nat Rev Gastroenterol Hepatol. 2022 Feb;19(2):79. doi: 10.1038/s41575-022-00576-z. No abstract available. — View Citation

Lang S, Duan Y, Liu J, Torralba MG, Kuelbs C, Ventura-Cots M, Abraldes JG, Bosques-Padilla F, Verna EC, Brown RS Jr, Vargas V, Altamirano J, Caballeria J, Shawcross D, Lucey MR, Louvet A, Mathurin P, Garcia-Tsao G, Ho SB, Tu XM, Bataller R, Starkel P, Fouts DE, Schnabl B. Intestinal Fungal Dysbiosis and Systemic Immune Response to Fungi in Patients With Alcoholic Hepatitis. Hepatology. 2020 Feb;71(2):522-538. doi: 10.1002/hep.30832. Epub 2019 Aug 20. — View Citation

Mbaye B, Borentain P, Magdy Wasfy R, Alou MT, Armstrong N, Mottola G, Meddeb L, Ranque S, Gerolami R, Million M, Raoult D. Endogenous Ethanol and Triglyceride Production by Gut Pichia kudriavzevii, Candida albicans and Candida glabrata Yeasts in Non-Alcoholic Steatohepatitis. Cells. 2022 Oct 27;11(21):3390. doi: 10.3390/cells11213390. — View Citation

Zeng S, Schnabl B. Roles for the mycobiome in liver disease. Liver Int. 2022 Apr;42(4):729-741. doi: 10.1111/liv.15160. Epub 2022 Jan 17. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Gut mycobiome compositional signature in Alcoholic liver diseases Research has shown that the gut mycobiome, which refers to the community of fungi that resides in the human gut, may have a distinct compositional signature in individuals with alcoholic liver disease (ALD). Microorganisms found that individuals with ALD had a higher abundance of certain fungal species, including Candida, Malassezia, and Saccharomyces, compared to healthy individuals and genus Saccharomyces. Saccharomyces is of particular interest in ALD as it is known to produce ethanol, which can contribute to liver damage in individuals with ALD. Furthermore, higher levels of certain fungal metabolites, including acetaldehyde and ethanol, in the fecal samples of individuals with ALD. These findings suggest that the gut mycobiome may play a role in the development and progression of ALD, and that alterations in the composition of the gut mycobiome may be a potential biomarker for this condition. 2 years
Primary Gut mycobiome biomarkers identification for early detection of decompensated alcoholic liver disease While there is still much research to be done, studies have identified potential gut mycobiome biomarkers that may be used for the early detection of ALD and its progression to more severe stages. Overall, previous findings suggest that the gut mycobiome may be a valuable source of biomarkers for the early detection of ALD. However, further research is needed to confirm the accuracy and reliability of these potential biomarkers and to determine the best approach for their clinical use. 2 years
Primary Health beneficial Gut Mycobiome identification in alcoholic liver disease While research has primarily focused on the detrimental effects of altered gut mycobiome composition in individuals with alcoholic liver disease (ALD), there is also evidence to suggest that certain fungal species may have health benefits and could potentially play a role in the prevention or treatment of ALD. The fungal genus Debaryomyces was present at higher levels in the fecal samples of healthy individuals compared to individuals with ALD. Fungal species Rhodotorula mucilaginosa was able to reduce liver damage in rats with ALD. Rhodotorula mucilaginosa and Debaryomyces has also been shown to have anti-inflammatory and antioxidant properties, which may contribute to its protective effects on the liver. These findings suggest that certain fungal species may have health benefits and could potentially be used in the prevention or treatment of ALD. 2 years
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