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Gut check: new study probes how hepatitis drug changes your microbiome

NCT ID NCT07429864

Knowledge-focused Sponsor: Fondazione Policlinico Universitario Agostino Gemelli IRCCS Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how the drug bulevirtide changes gut bacteria and bile acids in people with hepatitis delta (a serious liver infection). Researchers will follow 20 patients for 48 weeks, collecting stool and blood samples to see how these changes relate to liver health. The goal is to better understand why some patients respond to treatment and others don't.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 20 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2025

Expected to finish

Oct 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Patients with chronic hepatitis or compensated liver cirrhosis (Child-Pugh Score A) related to HBV-HDV, at the time of the first prescription of BLV 2 mg, will be enrolled.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Patients with chronic HDV-related hepatitis or compensated liver cirrhosis (Child-Pugh class A) * Positive HDV RNA within the 24 weeks prior to enrollment * Ongoing antiviral therapy for HBV at the time of enrollment * First prescription of Bulevirtide 2 mg issued within 30 days prior to enrollment * Caucasian ethnicity * Age ≥18 years * Normocaloric omnivorous diet * No intake of antibiotics, probiotics, or prebiotics in the month prior to enrollment * Signed informed consent Exclusion Criteria: * Decompensated liver cirrhosis (Child-Pugh Score B or C) * Patients without HBV-HDV-related infection/hepatitis/cirrhosis * Age ≤18 years * Pregnant or breastfeeding women * Concomitant diseases with short life expectancy (solid or hematologic neoplasms, heart failure NYHA III/IV, COPD GOLD C-D) * Conditions (celiac disease, chronic inflammatory bowel diseases) or use of medications (antibiotics, probiotics, prebiotics) capable of altering gut microbiota composition

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Conditions

The condition(s) this trial relates to.

bile acid malabsorption, primary, 1 cirrhosis of liver Dysbiosis fibrotic liver disease hepatitis B virus infection hepatitis C virus infection hepatitis D virus infection hepatocellular carcinoma HIV infectious disease idiopathic malabsorption due to bile acid synthesis defects infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Bile acid malabsorption Cirrhosis, liver Fibrosis, liver HBV HBV coinfection HCV Hepatocellular carcinoma HIV infections Microbial colonization

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Fondazione Policlinico Universitaro A. Gemelli IRCSS UOC CEMAD

    RECRUITING

    Roma, 00168, Italy

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