Diese Seite wurde automatisch übersetzt und die Genauigkeit der Übersetzung wird nicht garantiert. Bitte wende dich an die englische Version für einen Quelltext.

Eine Studie zur sequentiellen Therapie mit Daplusiran/Tomligisiran (DAP/TOM) gefolgt von Bepirovirsen bei Teilnehmern mit chronischer Hepatitis B (CHB) (B-UNITED)

4. November 2026 aktualisiert von: GlaxoSmithKline

Eine multizentrische, randomisierte, teilweise placebokontrollierte Doppelblindstudie der Phase 2b zur Untersuchung der Sicherheit und Wirksamkeit einer sequentiellen Therapie mit Daplusiran/Tomligisiran, gefolgt von Bepirovirsen bei Teilnehmern mit chronischem Hepatitis-B-Virus auf Hintergrund-Nucleos(t)Ide-Analogon Therapie (B-United)

The study is intended to evaluate the efficacy and safety of 2 different doses of DAP/TOM followed by bepirovirsen in participants living with CHB on standard of care nucleos(t)ide analogue (NA) therapy. The study also aims to identify an optimal dose of DAP/TOM for sequenced therapy with bepirovirsen for further clinical development and to assess the contribution of DAP/TOM to the sequential regimen. The study will also include an optional long-term follow-up (LTFU) extension stage for eligible participants.

Studienübersicht

Status

Aktiv, nicht rekrutierend

Bedingungen

Intervention / Behandlung

Studientyp

Interventionell

Einschreibung (Tatsächlich)

283

Phase

  • Phase 2

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

    • New South Wales
      • Westmead, New South Wales, Australien, 2145
        • GSK Investigational Site
    • Victoria
      • Fitzroy, Victoria, Australien, 3065
        • GSK Investigational Site
      • Brussels, Belgien, 1000
        • GSK Investigational Site
      • Edegem, Belgien, 2650
        • GSK Investigational Site
    • Oost-Vlaanderen
      • Ghent, Oost-Vlaanderen, Belgien, 9000
        • GSK Investigational Site
      • Aracaju, Brasilien, 49060-010
        • GSK Investigational Site
      • Curitiba, Brasilien, 80810-050
        • GSK Investigational Site
      • Manaus, Brasilien, 69040-000
        • GSK Investigational Site
      • São Paulo, Brasilien, 05403-000
        • GSK Investigational Site
      • Beijing, China, 100050
        • GSK Investigational Site
      • Chengdu, China, 610072
        • GSK Investigational Site
      • Guangzhou, China, 510630
        • GSK Investigational Site
      • Shanghai, China, 200040
        • GSK Investigational Site
      • Berlin, Deutschland, 10787
        • GSK Investigational Site
      • Berlin, Deutschland, 10439
        • GSK Investigational Site
      • Münster, Deutschland, 48149
        • GSK Investigational Site
    • Lower Saxony
      • Hanover, Lower Saxony, Deutschland, 30625
        • GSK Investigational Site
      • Clichy, Frankreich, 92118
        • GSK Investigational Site
      • Créteil, Frankreich, 94010
        • GSK Investigational Site
      • Limoges, Frankreich, 87042
        • GSK Investigational Site
      • Lyon, Frankreich, 69004
        • GSK Investigational Site
      • Marseille, Frankreich, 13008
        • GSK Investigational Site
      • Athens, Griechenland, 10676
        • GSK Investigational Site
      • Athens, Griechenland, 11527
        • GSK Investigational Site
      • Pokfulam, Hongkong
        • GSK Investigational Site
      • Shatin, Hongkong
        • GSK Investigational Site
      • Bergamo, Italien, 24127
        • GSK Investigational Site
      • Florence, Italien, 50134
        • GSK Investigational Site
      • Milan, Italien
        • GSK Investigational Site
      • Naples, Italien, 80131
        • GSK Investigational Site
      • Padova, Italien, 35131
        • GSK Investigational Site
      • Pisa, Italien, 56124
        • GSK Investigational Site
      • Roma, Italien, 00161
        • GSK Investigational Site
      • Chiba, Japan, 270-1694
        • GSK Investigational Site
      • Hokkaido, Japan, 006-8555
        • GSK Investigational Site
      • Hokkaido, Japan, 053-8506
        • GSK Investigational Site
      • Hyōgo, Japan, 660-8550
        • GSK Investigational Site
      • Kagawa, Japan, 761-0793
        • GSK Investigational Site
      • Kagawa, Japan, 760-8557
        • GSK Investigational Site
      • Kumamoto, Japan, 860-8556
        • GSK Investigational Site
      • Kumamoto, Japan, 862-8655
        • GSK Investigational Site
      • Osaka, Japan, 540-0006
        • GSK Investigational Site
      • Osaka, Japan, 565-0871
        • GSK Investigational Site
      • Tokyo, Japan, 180-8610
        • GSK Investigational Site
      • Yamanashi, Japan, 409-3898
        • GSK Investigational Site
    • Alberta
      • Calgary, Alberta, Kanada, T2N 4Z6
        • GSK Investigational Site
    • Ontario
      • Ottawa, Ontario, Kanada, K1H8L6
        • GSK Investigational Site
      • Toronto, Ontario, Kanada, M5G 2C4
        • GSK Investigational Site
    • Quebec
      • Montreal, Quebec, Kanada, H4A 3J1
        • GSK Investigational Site
      • Auckland, Neuseeland, 2025
        • GSK Investigational Site
      • Auckland, Neuseeland, 1023
        • GSK Investigational Site
      • Singapore, Singapur, 119074
        • GSK Investigational Site
      • Singapore, Singapur, 169608
        • GSK Investigational Site
      • Barcelona, Spanien, 08036
        • GSK Investigational Site
      • Barcelona, Spanien, 08035
        • GSK Investigational Site
      • León, Spanien, 24080
        • GSK Investigational Site
      • Madrid, Spanien, 28041
        • GSK Investigational Site
      • Salamanca, Spanien, 37007
        • GSK Investigational Site
      • Santander, Spanien, 39008
        • GSK Investigational Site
      • Valencia, Spanien, 46026
        • GSK Investigational Site
      • Ekurhuleni, Südafrika, 1459
        • GSK Investigational Site
      • Johannesburg, Südafrika, 2193
        • GSK Investigational Site
      • Ansan, Südkorea, 15355
        • GSK Investigational Site
      • Busan, Südkorea, 47392
        • GSK Investigational Site
      • Pusan, Südkorea, 49241
        • GSK Investigational Site
      • Seoul, Südkorea, 138-736
        • GSK Investigational Site
      • Seoul, Südkorea, 07061
        • GSK Investigational Site
      • Kaohsiung City, Taiwan, 807
        • GSK Investigational Site
      • Kaohsiung City, Taiwan, 824
        • GSK Investigational Site
      • Taichung, Taiwan, 404
        • GSK Investigational Site
      • Tau-Yuan, Taiwan, 333
        • GSK Investigational Site
    • California
      • San Francisco, California, Vereinigte Staaten, 94115
        • GSK Investigational Site
      • San Jose, California, Vereinigte Staaten, 95116
        • GSK Investigational Site
    • Minnesota
      • Minneapolis, Minnesota, Vereinigte Staaten, 55415
        • GSK Investigational Site
    • New York
      • New York, New York, Vereinigte Staaten, 10029
        • GSK Investigational Site
    • Pennsylvania
      • Philadelphia, Pennsylvania, Vereinigte Staaten, 19104
        • GSK Investigational Site
      • London, Vereinigtes Königreich, SE5 9RS
        • GSK Investigational Site
      • London, Vereinigtes Königreich, SW17 0QT
        • GSK Investigational Site
      • London, Vereinigtes Königreich, E1 8PR
        • GSK Investigational Site
      • Middlesbrough, Vereinigtes Königreich, TS4 3BW
        • GSK Investigational Site

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre und älter (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Nein

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • Age: At least 18 years of age at the time of signing the informed consent
  • Documented chronic HBV infection greater than or equal to (>=) 6 months prior to Screening AND currently receiving stable NA therapy defined as receiving an NA regimen form at least 6 months prior to Screening and with no planned changes to their stable regimen over the duration of the study.
  • Plasma or serum HBsAg concentration greater than (>) 100 international units per milliliter (IU/mL)
  • Plasma or serum HBV DNA concentration must be adequately suppressed, defined as plasma or serum HBV DNA less than (<) 90 IU/mL
  • Alanine aminotransferase less than or equal to (<=) 2* upper limit of normal (ULN)
  • Participants who are willing and able to cease their NA treatment in accordance with the protocol.
  • Male and Female

Exclusion Criteria:

  • Clinically significant abnormalities, aside from chronic HBV infection in medical history (e.g., moderate-severe liver disease other than chronic HBV, 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.
  • Coinfection with Hepatitis C (cured <12 months at the time of screening), Human immunodeficiency virus or hepatitis D virus
  • History of or suspected liver cirrhosis and/or evidence of cirrhosis.
  • Diagnosed or suspected hepatocellular carcinoma.
  • History of malignancy within the past 5 years with the exception of specific cancers that are cured by surgical resection (example, skin cancer). Participants under evaluation for possible malignancy are not eligible.
  • 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 (example, systemic lupus erythematosus, rheumatoid arthritis, relapsing polychondritis, mononeuritis multiplex).
  • History of extrahepatic disorders possibly related to HBV immune conditions (example, nephrotic syndrome, any type of glomerulonephritis, polyarteritis nodosa, cryoglobulinemia, uncontrolled hypertension).
  • History of alcohol or drug abuse/dependence:
  • Currently taking, or took within 3 months of screening, any immunosuppressing drugs (example, prednisone), other than a short course of therapy (<=2 weeks) or topical/inhaled steroid use.
  • Participants, to whom immunosuppressive treatment (including therapeutic doses of steroids) is contraindicated, should not be considered for enrollment in the study.
  • Currently taking, or has taken within 6 months of Screening, any interferon-containing therapy.
  • Participants requiring anti-coagulation therapies (example, warfarin, Factor Xa inhibitors) or anti-platelet agents (like clopidogrel or aspirin) unless treatment can safely be discontinued throughout duration of Investigational medicinal product (IMP) treatment, by the discretion of the investigator. Occasional use is permitted.
  • Prior hepatitis B treatment with bepirovirsen, DAP/TOM, or another oligonucleotide or small interfering RNA (siRNA).
  • Prior non-hepatitis B treatment with an oligonucleotide or siRNA within 12 months prior to the first dosing day.
  • Fridericia's QT correction formula (QTcF) >=450 millisecond (msec) (if single electrocardiogram [ECG] at screening shows QTcF >=450 msec, a mean of triplicate measurements should be used to confirm that participant meets exclusion criterion).
  • History of/sensitivity to bepirovirsen, DAP/TOM or components thereof or a history of drug or other allergy that, in the opinion of the investigator or Medical Monitor, contraindicates their participation
  • Participants who do not wish to discontinue taking NA therapy for their chronic HBV infection.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Zufällig
  • Interventionsmodell: Sequenzielle Zuweisung
  • Maskierung: Doppelt

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Treatment Arm 1A: DAP/TOM + Bepirovirsen

Participants with high Hepatitis B surface antigen (HBsAg) level will receive dose level 1 of DAP/TOM in Treatment Stage 1. After DAP/TOM Treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Daplusiran/Tomligisiran dose level 1 will be administered

Bepirovirsen will be administered

Experimental: Treatment Arm 1B: DAP/TOM + Bepirovirsen

Participants with high HBsAg level will receive dose level 2 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Bepirovirsen will be administered

Daplusiran/Tomligisiran dose level 2 will be administered

Experimental: Treatment Arm 2A: DAP/TOM + Bepirovirsen

Participants with low HBsAg level will receive dose level 1 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Daplusiran/Tomligisiran dose level 1 will be administered

Bepirovirsen will be administered

Experimental: Treatment Arm 2B: DAP/TOM + Bepirovirsen

Participants with low HBsAg level will receive dose level 2 of DAP/TOM in Treatment Stage 1. After DAP/TOM treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Bepirovirsen will be administered

Daplusiran/Tomligisiran dose level 2 will be administered

Experimental: Treatment Arm 2C: Placebo + Bepirovirsen

Participants with low HBsAg level will receive Placebo in Treatment Stage 1. After Placebo treatment, eligible participants will receive bepirovirsen in Treatment Stage 2. All participants will continue background NA treatment throughout these treatment stages. After bepirovirsen Treatment Stage, participants will be observed during the NA Only Stage, while maintaining background NA treatment. Eligible participants will then discontinue background NA treatment.

Placebo will be administered

Bepirovirsen will be administered

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of participants achieving functional cure
Zeitfenster: Up to 100 Weeks

The functional cure for HBV is defined as sustained suppression (24 weeks or longer) of HBV deoxyribonucleic acid (DNA) <lower limit of quantification (LLOQ) and HBsAg not detected with or without HBsAb after a finite duration of therapy and off all HBV treatment. The number of participants achieving functional cure after discontinuation of all chronic HBV treatments (DAP/TOM, bepirovirsen, and NA treatment) will be reported.

Up to 100 Weeks

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Number of participants achieving functional cure with high Baseline HBsAg level
Zeitfenster: Up to 100 Weeks

The functional cure for HBV is defined as sustained suppression (24 weeks or longer) of HBV DNA <LLOQ and HBsAg not detected with or without HBsAb after a finite duration of therapy and off all HBV treatment. The number of participants achieving functional cure with high Baseline HBsAg level after discontinuation of all chronic HBV treatments (DAP/TOM, bepirovirsen, and NA treatment) will be reported.

Up to 100 Weeks
Number of participants achieving functional cure with low Baseline HBsAg level
Zeitfenster: Up to 100 Weeks

The functional cure for HBV is defined as sustained suppression (24 weeks or longer) of HBV DNA <LLOQ and HBsAg not detected with or without HBsAb after a finite duration of therapy and off all HBV treatment. The number of participants achieving functional cure with low Baseline HBsAg level after discontinuation of all chronic HBV treatments (DAP/TOM, bepirovirsen, and NA treatment) will be reported.

Up to 100 Weeks
Number of participants achieving functional cure with low Baseline HBsAg level compared against placebo + bepirovirsen arm
Zeitfenster: Up to 100 Weeks

The functional cure for HBV is defined as sustained suppression (24 weeks or longer) of HBV DNA <LLOQ and HBsAg not detected with or without HBsAb after a finite duration of therapy and off all HBV treatment. The number of participants achieving functional cure with low Baseline HBsAg level after discontinuation of all chronic HBV treatments (DAP/TOM, bepirovirsen, and NA treatment) compared against placebo + bepirovirsen arm will be reported.

Up to 100 Weeks
Number of participants with undetected HBsAg and HBV DNA <LLOQ
Zeitfenster: Up to 48 Weeks

The number of participants with undetected HBsAg and HBV DNA <LLOQ at the end of bepirovirsen treatment will be reported.

Up to 48 Weeks

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Ermittler

  • Studienleiter: GSK Clinical Trials, GlaxoSmithKline

Publikationen und hilfreiche Links

Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

11. November 2024

Primärer Abschluss (Geschätzt)

31. Mai 2027

Studienabschluss (Geschätzt)

17. Mai 2030

Studienanmeldedaten

Zuerst eingereicht

1. August 2024

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

1. August 2024

Zuerst gepostet (Tatsächlich)

5. August 2024

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

6. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

4. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • 218309
  • 2024-514507-33-00 (Ctis)
  • 2024-514507-33-00 (Registrierungskennung: CTIS (EU))

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

JA

Beschreibung des IPD-Plans

Qualified researchers may request access to anonymized individual patient-level data (IPD) and related study documents of the eligible studies via the Data Sharing Portal. Details on GSK's data sharing criteria can be found at: https://www.gsk-studyregister.com/gsk-patient-level-data-sharing-july2025.pdf

IPD-Sharing-Zeitrahmen

Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or terminated asset(s) across all indications.

IPD-Sharing-Zugriffskriterien

Anonymized IPD is shared with researchers whose proposals are approved by an Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension may be granted, when justified, for up to 6 months.

Art der unterstützenden IPD-Freigabeinformationen

  • STUDIENPROTOKOLL
  • SAFT
  • ICF
  • CSR

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Ja

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .