Skip to main content
OpenTrials
Recruiting

NCT Number: NCT05548452

Intestinal Microbiota Transplant in Alcohol-Associated Liver Disease

The purpose of this research study is to test the safety, tolerability, and effectiveness of the capsules that contain bacteria from healthy individuals when used to treat alcohol craving and drinking.

Recruiting

Interested in participating?

Request Info

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1 / Phase 2

Primary location

Hunter Holmes McGuire VA Medical Center, Richmond, Virginia, United States

Loading trial locations.

About this study

These intestinal microbiota transplant (IMT) capsules are an investigational drug, which means it has not been approved by the U. S. Food and Drug Administration (FDA). In this study, drug name will be compared to placebo (a look-alike inactive substance, a "sugar pill").

Participants will be randomly assigned (like the flip of a coin) to receive either IMT capsules or placebo capsules. Participants have an equal chance of being assigned to any one of the groups.

In this study, participants will be asked to do the following things:

  • Visit VCU medical center up to 8 times for study visits
  • Take either IMT capsule or the placebo, depending upon which group they are assigned to; these capsules will be given twice on enrollment and after one month
  • Have blood drawn, urine and stool collected at each visit
  • Have testing done to determine the speed of brain function
  • Keep a diary at home
  • Take surveys and answer questions about general health, alcohol craving and consumption and how they are feeling.
  • Give permission for the researchers to collect information about liver disease, alcohol and mental health from medical records.

Participation in this study will last up to 7 months.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

->18 years of age

  • Advanced liver disease
  • Able to give written, informed consent
  • Alcohol as a cause of advanced liver disease
  • Continued sustained drinking
  • Having previously declined a referral to traditional AUD therapy services or having failed such treatments

Exclusion criteria

  • Lack of sustained drinking
  • Recent or current alcoholic hepatitis
  • Alcohol withdrawal symptoms
  • Clinically significant use of illicit drugs
  • Uncontrolled mood disorders or primary psychotic conditions
  • MELD score>17
  • Unclear diagnosis of chronic liver disease
  • Current hepatic encephalopathy on lactulose and/or rifaximin
  • WBC count<1000
  • Non-elective hospitalization within last month
  • on dialysis
  • known untreated, in-situ luminal GI cancers
  • chronic intrinsic GI diseases (ulcerative colitis, Crohn's disease or microscopic colitis, eosinophilic gastroenteritis and celiac disease)
  • Dysphagia within 2 weeks
  • History of aspiration, gastroparesis, intestinal obstruction
  • Ongoing absorbable antibiotic use
  • Severe anaphylactic food allergy
  • allergy to ingredients Generally Recognized As Safe in the G3 capsules (glycerol, sodium chloride, hypromellose, gellan gum, titanium dioxide, theobroma oil)
  • Adverse event attributable to prior IMT
  • ASA Class IV or V
  • Pregnant or nursing patients
  • acute illness or fever on the day of planned FMT
  • Immunosuppression
  • Other conditions which make patients are poor candidate for this study per investigator judgement

Treatment and study plan

Intestinal Microbiota Transplant (IMT) Capsules

Drug

Capsules containing freeze-dried intestinal microbiota from healthy human donors

placebo capsules

Drug

Capsules containing an inactive substance ("sugar pill")

Primary outcomes

  1. Number of abstinent days

    Time frame: Baseline to 3 months after treatment (analysis of all 3 primary outcomes via Win Ratio)

    Number of drinks per day will be measured through self report

  2. Change in WHO drinking levels by 1 or greater at month 3

    Time frame: Baseline to 3 months after treatment (analysis of all 3 primary outcomes via Win Ratio)

    WHO grade by self report

  3. Phosphatidyl Ethanol (PEth) level change

    Time frame: Baseline to 3 months after treatment (analysis of all 3 primary outcomes via Win Ratio)

    Change to <70

Secondary outcomes

  1. Change in markers of alcohol in urine

    Time frame: Baseline to 3 months after treatment

    Urine samples will be analyzed for levels of Ethyl Glucuronide (EtG) and Ethyl Sulfate (EtS)

  2. Change in markers of alcohol in blood

    Time frame: Baseline to 3 months after treatment

    Blood samples will be analyzed for Phosphatidyl Ethanol (PEth)

  3. Change in percentage of heavy drinking days

    Time frame: Baseline to 3 months after treatment

    Self reported drinking behavior will be used to calculate percentage of heavy drinking days

  4. Change in alcohol craving

    Time frame: Baseline to 3 months after treatment

    The Alcohol Craving Questionnaire is a 12-item instrument

  5. Change in life problems

    Time frame: Baseline to 3 months after treatment

    The Short Index of Problems is a 15-item instrument which measures medical, psychological, social, occupational, and legal problems.

  6. Number of hospitalizations

    Time frame: 6 months

    All hospitalizations and liver-related hospitalizations will be tracked

  7. Number of serious adverse events

    Time frame: 6 months

    All serious adverse events and intervention related adverse events will be tracked

  8. Change in microbial composition

    Time frame: Baseline to 3 months after treatment

    Percentage of beneficial intestinal bacteria will be assessed by genetic analysis of stool samples.

  9. Change in liver function

    Time frame: Baseline to 3 months after treatment

    The Model for end-stage liver disease (MELD) score will be used to asses changes in liver function.

  10. Change in Psychometric hepatic encephalopathy score (PHES)

    Time frame: Baseline to 3 months after treatment

    Brain function will be assessed using the PHES

  11. Change in EncephalApp Stroop Test

    Time frame: Baseline to 3 months after treatment

    Brain function will be assessed using the EncephalApp Stroop Test

  12. Change in health related quality of live (HRQOL)

    Time frame: Baseline to 3 months after treatment

    HRQOL will be assessed using the Sickness Impact Profile

Study contacts

Contact information is provided by the study sponsor or research team.

Amy Bartels, BSN, RN

CONTACT

[email protected]

804-828-3849

Jasmohan S Bajaj, MD

CONTACT

[email protected]

804 675 5802

Sponsors and collaborators

Lead sponsor

Virginia Commonwealth University

Other

Collaborators

  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Registry information

Official study title

Intestinal Microbiota Transplant in Alcohol-Associated Chronic Liver Disease and Cirrhosis: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial

Acronym: IMPACT

Important dates

Study start
2022
Primary completion
2027
Study completion
2027
First posted
Sep 21, 2022
Registry last updated
Jul 14, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.