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Not yet taking people in United StatesPhase 2

Microbiota trAnSplant ThERaPy In hEpatiC Encephalopathy (MASTERPIECE)

Key facts

Who runs it
VA Office of Research and Development
Where
Dallas, Richmond, and West Haven, United StatesSee the 3 sites
Trial code
Status
Not yet recruiting
Phase
Phase 2
People taking part
162 people, planned
Started
30 Oct 2026
Expected to end
3 Mar 2031
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • Microbiota transplant therapy (MTT) capsules
  • Placebo capsule
Record updated
14 April 2026

Who can take part

Age
21 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 7 criteriaShow less

Who can take part

  • 21 years of age; Cirrhosis diagnosed by any of the following in a patient with chronic liver disease; Liver Biopsy; Radiologic evidence of varices, cirrhosis or portal hypertension; Laboratory evidence of platelet count <110,000 or AST/ALT ratio>1; Endoscopic evidence of varices or portal hypertensive gastropathy; Prior overt HE (patient can be on lactulose and/or rifaximin 4 weeks stable dosing); Able to give written, informed consent [mini-mental status exam (MMSE)]>25 at the time of consenting); For lactulose only group: Prior HE not on rifaximin

Who cannot take part

  • Adverse event attributable to prior FMT (7) ASA Class V
  • Acute illness or fever on the day of planned FMT
  • History of spontaneous bacterial peritonitis
  • Disease-related:; MELD3.0 score>22; WBC count<1000; non-elective hospitalization or overt HE episode within 1 month; on dialysis; known untreated, luminal GI cancer; chronic intrinsic GI diseases (ulcerative colitis, Crohn's disease, microscopic colitis, eosinophilic gastroenteritis or celiac disease)
  • Safety-related:; Current dysphagia; History of aspiration, intestinal obstruction or non-medication induced gastroparesis; Ongoing absorbable antibiotic use; History of anaphylactic food allergy; Allergy to ingredients in the capsules (glycerol, sodium chloride, hypromellose, gellan gum, titanium dioxide, theobroma oil)
  • Pregnant or nursing patients

Where in United States

  • VA North Texas Health Care System Dallas VA Medical Center, Dallas, TXDallas, United StatesContact: Elizabeth HernandezNo longer taking part
  • Richmond VA Medical Center, Richmond, VARichmond, United StatesContact: Haley ObolewiczNo longer taking part
  • CERC (VISN1, West Haven, CT)West Haven, United StatesContact: Lynn BuchwalderNo longer taking part

About the trial

What the trial wants to find out

The goal of this clinical trial is to find out whether changing the microbes in the bowels of Veterans with cirrhosis and hepatic encephalopathy (a condition that affects the brain as a result of liver problems) using capsules made from microbes from healthy people can prevent future episodes of hepatic encephalopathy.

The 2 groups in the trial

  • MTTTreatment being tested

    Microbiota transplant therapy (MTT) capsules

    Treatment: Microbiota transplant therapy (MTT) capsules

  • PlaceboPlacebo, for comparison

    Placebo capsule

    Treatment: Placebo capsule

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Microbiota Transplant Therapy to Prevent HE Recurrence in a Phase 2B Multi-Center Trial of Veterans With Cirrhosis
Record updated
14 April 2026