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NCT Number: NCT06750588

Safety and Tolerability of NTR-101 in Patients With Acute Alcohol-Associated Hepatitis

The goal of this clinical trial is to learn about the safety and tolerability of NTR-101 in adult participants suffering from acute alcohol-associated hepatitis (AH).

The drug is intended for use in the treatment of AH where the presence of specific strains of E. faecalis play a contributing role.

The main questions it aims to answer are:

Are multiple doses of NTR-101 in participants with acute AH safe and well tolerated? What medical problems do participants have when taking NTR-101? Researchers will administer the drug and monitor participants in an inpatient center.

Participants will:

Be administered multiple ascending dose frequencies of NTR-101 every day for 7 days.

Stay in the clinic for 9 days (7 days of treatment) and present to clinic once every week for checkups and tests for 35 days.

Keep a diary of their symptoms until the checkups and tests are completed.

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Key information

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Southern California Research Center, inc

Coronado, California, 92118, United States

Location contact

Kasey Seyer

CONTACT

[email protected]

619-522-0330

Tarek Hassanein, MD

PRINCIPAL_INVESTIGATOR

About this study

Alcohol-associated hepatitis (AH) is a severe inflammatory liver disease that can progress to liver failure, with high morbidity and mortality rates. Emerging studies indicate a significant role of gut-derived pathogens, particularly Enterococcus faecalis (E faecalis), in exacerbating liver damage through bacterial translocation and the release of toxins.

Cytolysin-positive E. faecalis strains exhibit high virulence and resistance to standard antibiotics.

NTR-101 is a product developed for oral delivery and composed of natural bacteriophages that specifically target cytolysin-positive E. faecalis.

The targeted activity of NTR-101 against E. faecalis in AH patients has the potential to address the underlying bacterial trigger, offering a novel approach to mitigate liver inflammation and reduce disease progression. For patients who do not respond to traditional treatments like corticosteroids or experience reduced antibiotic therapy efficacy, NTR-101 represents a novel, targeted approach that leverages bacteriophages' specificity for bacterial strains in this target population, offering a potential alternative or complement to traditional antibiotics.

Who can participate

Healthy volunteers accepted: No

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

Key Inclusion Criteria:

  • Diagnostic definition of acute alcohol-associated hepatitis based on well established standard disease markers
  • Able to provide written informed consent (either from patient or patient's legally authorized representative)
  • Male and female patients aged ≥18 years and ≤ 70 years of age
  • BMI ≥ 20 to ≤ 40 kg/m2
  • Enterococcus faecalis testing
  • Susceptibility to NTR-101
  • Women of child-bearing potential and male patients must agree to use a medically acceptable method of contraception/ birth control throughout the study duration.

Key Exclusion Criteria:

  • Participants considered at high risk for alcohol withdrawal according to the clinical institute withdrawal assessment (CIWA-Ar) protocol
  • Participants taking systemic corticosteroids for a specified duration
  • Platelet count below specified ranges
  • INR and Serum creatinine levels above specified ranges
  • Active bacterial or viral infections
  • Other or concomitant cause(s) of liver disease as a result of other conditions
  • Co-infection with HIV
  • Positive urine drug screen
  • Any significant systemic or major illness other than liver disease that, in the opinion of the investigator, would preclude the patient from participating in and completing the study or might complicated or exacerbated by the proposed treatments or might confound assessment of investigational product
  • If female, known pregnancy, or has a positive serum pregnancy test, or lactating/ breastfeeding

Treatment and study plan

bacteriophage preparation

Drug

NTR-101 will be given orally to participants once daily for 7 days

Primary outcomes

  1. Frequency of adverse events

    Time frame: AEs will be recorded daily for 7 days, then weekly on days 14, 21, 28 and 35

    The number of adverse events (AEs) will be recorded.

  2. Changes in liver function will be evaluated

    Time frame: Assessments will be recorded daily for 7 days, then weekly on days 14, 21, 28 and 35

    ALT (alanine transaminase) and AST (aspartate aminotransferase) enzymes will be evaluated

Secondary outcomes

  1. Preliminary assessment of NTR-101 efficacy and viability

    Time frame: Stool samples will be collected daily for 7 days, then weekly on days 14, 21, 28 and 35 to evaluate the presence of the target pathogen and NTR-101 viability

    Assessment of relative abundance of target pathogen and NTR-101 viability after oral administration

Other outcomes

  1. Evaluation of the effect of NTR-101 on various disease severity markers

    Time frame: Samples for disease severity markers be collected daily for 7 days, then weekly on days 14, 21, 28 and 35

    changes from baseline in disease severity markers like Serum bilirubin, Serum sodium, Serum creatinine

  2. Susceptibility of recovered target bacteria to NTR-101 post-treatment

    Time frame: Samples will be collected daily for 7 days, then weekly on days 14, 21, 28 and 35

    Stool samples will be collected for bacteria culture and assess for susceptibility to NTR-101

Study contacts

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

Project Manager

CONTACT

[email protected]

+61 (0) 411821040

Sponsors and collaborators

Lead sponsor

Nterica Bio inc

Industry

Collaborators

  • Southern California Research Center

Registry information

Official study title

Phase 1, Open Label Study to Evaluate Safety and Tolerability of NTR-101 in Patients With Acute Alcohol-Associated Hepatitis

Acronym: PhoenixAH

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Dec 27, 2024
Registry last updated
Aug 17, 2025

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.

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