Study of Bepirovirsen in Participants Living With Human Immunodeficiency Virus and Chronic Hepatitis B Virus Infection (B-Focus)

NCT ID: NCT06497504

Last Updated: 2025-07-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-09-17

Study Completion Date

2027-04-27

Brief Summary

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This study will evaluate the efficacy and safety of bepirovirsen compared to placebo in participants with human immunodeficiency virus (HIV)/hepatitis B virus (HBV) co-infection.

Detailed Description

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Conditions

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Hepatitis B

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
This will be a double-blind study.

Study Groups

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Participants receiving Bepirovirsen

Participants will receive bepirovirsen.

Group Type EXPERIMENTAL

Bepirovirsen

Intervention Type DRUG

Bepirovirsen will be administered.

Participants receiving Placebo

Participants will receive placebo.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo will be administered.

Interventions

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Bepirovirsen

Bepirovirsen will be administered.

Intervention Type DRUG

Placebo

Placebo will be administered.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Documented chronic hepatitis B virus (HBV) infection and documented human immunodeficiency virus (HIV)-1 infection greater than equal to (\>=) 12 months prior to Screening.
2. Must be on uninterrupted antiretroviral therapy (ART) containing at least tenofovir disoproxil (TDF) or tenofovir alafenamide (TAF) plus lamivudine (3TC) or emtricitabine (FTC) for greater than (\>)12 months, with no planned changes to the stable regimen over the duration of the study.

o Switch in ART is permitted \>=6 months prior to Screening for reasons not related to loss of HIV or HBV control (e.g., change in formulary, tolerability, side effects).
3. Documented evidence of at least 2 plasma HIV-1 ribonucleic acid (RNA) measurements less than (\<) 50 copies per milliliter (copies/mL) are required in the 12 months prior to Screening: 1 within 6 to 12 months prior to Screening and 1 within 6 months prior to Screening.
4. Plasma or serum HBV deoxyribonucleic acid (DNA) concentration must be adequately suppressed, defined as plasma or serum HBV DNA \<90 international units per milliliter (IU/mL).
5. Plasma or serum HBsAg concentration \>100 IU/mL and \<=3000 IU/mL.
6. Plasma HIV-1 RNA concentration must be undetectable, defined as plasma HIV 1 RNA \<50 copies/mL.
7. Cluster of differentiation 4 (CD4) count \>=350 cells per cubic millimeter (cells/mm\^3).
8. Alanine aminotransferase (ALT) \<=2 times upper limit of normal (ULN).

Exclusion Criteria

1. History of or suspected liver cirrhosis and/or evidence of cirrhosis.
2. Diagnosed or suspected hepatocellular carcinoma (HCC).
3. History of extrahepatic disorders possibly related to HBV immune conditions (e.g., nephrotic syndrome, any type of glomerulonephritis, polyarteritis nodosa, cryoglobulinemia, uncontrolled hypertension).
4. Coinfection with:

1. Hepatitis C virus (HCV) with positive HCV antibody and detectable HCV RNA at Screening.

I. HCV treatment should have completed \>12 months prior to Screening.
2. Hepatitis D virus (HDV) defined as positive or equivocal HDV antibody regardless of HDV RNA level.
5. Clinically significant abnormalities, aside from HIV-1 infection and chronic HBV infection in medical history (e.g., moderate severe liver disease other than chronic HBV/HIV, acute coronary syndrome within 6 months of Screening, major surgery within 3 months of Screening, significant/unstable cardiac disease, uncontrolled diabetes, bleeding diathesis coagulopathy) or clinically significant physical examination findings.
6. Untreated syphilis infection (positive rapid plasma reagin \[RPR\] at Screening without clear documentation of treatment) are excluded unless they complete treatment during the Screening period and 7 days prior to randomization.
7. History of malignancy within the past 5 years with the exception of specific cancers that are cured by surgical resection (e.g., skin cancer). Participants under evaluation for possible malignancy are not eligible.
8. History of vasculitis or presence of symptoms and signs of potential vasculitis (e.g., vasculitic rash, skin ulceration, repeated blood detected in urine without identified cause), current or history of an autoimmune condition or history/presence of other diseases that may be associated with vasculitis condition (e.g., systemic lupus erythematosus, rheumatoid arthritis, relapsing polychondritis, mononeuritis multiplex).
9. Participants who in the investigator's judgment, have a significant risk of suicide or self-harm.
10. Alcohol or drug abuse/dependence
11. Currently taking, or took within 3 months of Screening, any immunosuppressing drugs (e.g., prednisone), other than a short course of therapy (\<=2 weeks) or topical/inhaled steroid use.
12. Participants to whom immunosuppressive treatment, including therapeutic doses of steroids, is contraindicated should not be considered for enrolment in the study.
13. Currently taking, or has taken within 12 months of Screening, any interferon containing therapy.
14. Participants requiring anti coagulation therapies (e.g., warfarin, Factor Xa inhibitors) or anti platelet agents (including but not limited to clopidogrel or aspirin) unless treatment can safely be discontinued throughout duration of study intervention, by the discretion of the investigator. Occasional use is permitted.
15. Treatment with an HIV-1 immunotherapeutic vaccine within 90 days of Screening.
16. Prior treatment with any oligonucleotide or small interfering ribonucleic acid (siRNA) within 12 months prior to the first dosing day.
17. Prior treatment with bepirovirsen.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

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GSK Investigational Site

Bakersfield, California, United States

Site Status COMPLETED

GSK Investigational Site

San Francisco, California, United States

Site Status RECRUITING

GSK Investigational Site

Orlando, Florida, United States

Site Status RECRUITING

GSK Investigational Site

West Palm Beach, Florida, United States

Site Status RECRUITING

GSK Investigational Site

Baltimore, Maryland, United States

Site Status RECRUITING

GSK Investigational Site

Minneapolis, Minnesota, United States

Site Status RECRUITING

GSK Investigational Site

Hillsborough, New Jersey, United States

Site Status RECRUITING

GSK Investigational Site

Almagro, , Argentina

Site Status RECRUITING

GSK Investigational Site

Buenos Aires, , Argentina

Site Status RECRUITING

GSK Investigational Site

Buenos Aires, , Argentina

Site Status RECRUITING

GSK Investigational Site

Buenos Aires, , Argentina

Site Status RECRUITING

GSK Investigational Site

La Plata, , Argentina

Site Status RECRUITING

GSK Investigational Site

Rosario, , Argentina

Site Status RECRUITING

GSK Investigational Site

Aracaju, , Brazil

Site Status RECRUITING

GSK Investigational Site

Campinas, , Brazil

Site Status RECRUITING

GSK Investigational Site

Curitiba, , Brazil

Site Status RECRUITING

GSK Investigational Site

Manaus, , Brazil

Site Status RECRUITING

GSK Investigational Site

Salvador, , Brazil

Site Status RECRUITING

GSK Investigational Site

São Paulo, , Brazil

Site Status RECRUITING

GSK Investigational Site

Ottawa, Ontario, Canada

Site Status RECRUITING

GSK Investigational Site

Toronto, Ontario, Canada

Site Status RECRUITING

GSK Investigational Site

Montreal, Quebec, Canada

Site Status RECRUITING

GSK Investigational Site

Montreal, Quebec, Canada

Site Status RECRUITING

GSK Investigational Site

Québec, Quebec, Canada

Site Status RECRUITING

GSK Investigational Site

Marseille, , France

Site Status RECRUITING

GSK Investigational Site

Melun, , France

Site Status RECRUITING

GSK Investigational Site

Montpellier, , France

Site Status RECRUITING

GSK Investigational Site

Nantes, , France

Site Status RECRUITING

GSK Investigational Site

Paris, , France

Site Status RECRUITING

GSK Investigational Site

Paris, , France

Site Status RECRUITING

GSK Investigational Site

Florence, , Italy

Site Status RECRUITING

GSK Investigational Site

Genova, , Italy

Site Status RECRUITING

GSK Investigational Site

Milan, , Italy

Site Status RECRUITING

GSK Investigational Site

Milan, , Italy

Site Status RECRUITING

GSK Investigational Site

Napoli, , Italy

Site Status RECRUITING

GSK Investigational Site

Roma, , Italy

Site Status RECRUITING

GSK Investigational Site

Sassari, , Italy

Site Status RECRUITING

GSK Investigational Site

Durban, , South Africa

Site Status RECRUITING

GSK Investigational Site

Johannesburg, , South Africa

Site Status RECRUITING

GSK Investigational Site

Reiger Park, , South Africa

Site Status RECRUITING

GSK Investigational Site

Barcelona, , Spain

Site Status RECRUITING

GSK Investigational Site

Córdoba, , Spain

Site Status RECRUITING

GSK Investigational Site

Madrid, , Spain

Site Status RECRUITING

GSK Investigational Site

Madrid, , Spain

Site Status RECRUITING

GSK Investigational Site

Madrid, , Spain

Site Status RECRUITING

GSK Investigational Site

Madrid, , Spain

Site Status RECRUITING

GSK Investigational Site

Banchiau Taipei, , Taiwan

Site Status RECRUITING

GSK Investigational Site

Kaohsiung City, , Taiwan

Site Status RECRUITING

GSK Investigational Site

Bristol Avon, , United Kingdom

Site Status RECRUITING

GSK Investigational Site

London, , United Kingdom

Site Status RECRUITING

GSK Investigational Site

London, , United Kingdom

Site Status RECRUITING

GSK Investigational Site

London, , United Kingdom

Site Status RECRUITING

Countries

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United States Argentina Brazil Canada France Italy South Africa Spain Taiwan United Kingdom

Central Contacts

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US GSK Clinical Trials Call Center

Role: CONTACT

877-379-3718

EU GSK Clinical Trials Call Center

Role: CONTACT

+44 (0) 20 89904466

Facility Contacts

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US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

EU GSK Clinical Trials Call Centre

Role: backup

+44 (0) 20 8990 4466

US GSK Clinical Trials Call Center

Role: primary

877-379-3718

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877-379-3718

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877-379-3718

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877-379-3718

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877-379-3718

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877-379-3718

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US GSK Clinical Trials Call Center

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877-379-3718

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US GSK Clinical Trials Call Center

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US GSK Clinical Trials Call Center

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877-379-3718

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Role: primary

877-379-3718

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Role: backup

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Other Identifiers

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2023-509588-25

Identifier Type: OTHER

Identifier Source: secondary_id

219231

Identifier Type: -

Identifier Source: org_study_id

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