Un estudio de terapia secuencial con daplusiran/tomligisiran (DAP/TOM) seguida de bepirovirsen en participantes que viven con hepatitis B crónica (CHB) (B-UNITED)
Un estudio de fase 2b, multicéntrico, aleatorizado, parcialmente controlado con placebo y doble ciego para investigar la seguridad y eficacia de la terapia secuencial con daplusiran / tomligisiran seguida de bepirovirsen en participantes con virus de la hepatitis B crónica con un análogo de nucleos (t) ide de fondo Terapia (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.
Descripción general del estudio
Estado
Intervención / Tratamiento
Tipo de estudio
Inscripción (Actual)
Fase
- Fase 2
Contactos y Ubicaciones
Ubicaciones de estudio
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Berlin, Alemania, 10787
- GSK Investigational Site
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Berlin, Alemania, 10439
- GSK Investigational Site
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Münster, Alemania, 48149
- GSK Investigational Site
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Lower Saxony
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Hanover, Lower Saxony, Alemania, 30625
- GSK Investigational Site
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New South Wales
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Westmead, New South Wales, Australia, 2145
- GSK Investigational Site
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Victoria
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Fitzroy, Victoria, Australia, 3065
- GSK Investigational Site
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Aracaju, Brasil, 49060-010
- GSK Investigational Site
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Curitiba, Brasil, 80810-050
- GSK Investigational Site
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Manaus, Brasil, 69040-000
- GSK Investigational Site
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São Paulo, Brasil, 05403-000
- GSK Investigational Site
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Brussels, Bélgica, 1000
- GSK Investigational Site
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Edegem, Bélgica, 2650
- GSK Investigational Site
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Oost-Vlaanderen
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Ghent, Oost-Vlaanderen, Bélgica, 9000
- GSK Investigational Site
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Alberta
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Calgary, Alberta, Canadá, T2N 4Z6
- GSK Investigational Site
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Ontario
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Ottawa, Ontario, Canadá, K1H8L6
- GSK Investigational Site
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Toronto, Ontario, Canadá, M5G 2C4
- GSK Investigational Site
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Quebec
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Montreal, Quebec, Canadá, H4A 3J1
- GSK Investigational Site
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Ansan, Corea del Sur, 15355
- GSK Investigational Site
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Busan, Corea del Sur, 47392
- GSK Investigational Site
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Pusan, Corea del Sur, 49241
- GSK Investigational Site
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Seoul, Corea del Sur, 138-736
- GSK Investigational Site
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Seoul, Corea del Sur, 07061
- GSK Investigational Site
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Barcelona, España, 08036
- GSK Investigational Site
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Barcelona, España, 08035
- GSK Investigational Site
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León, España, 24080
- GSK Investigational Site
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Madrid, España, 28041
- GSK Investigational Site
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Salamanca, España, 37007
- GSK Investigational Site
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Santander, España, 39008
- GSK Investigational Site
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Valencia, España, 46026
- GSK Investigational Site
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California
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San Francisco, California, Estados Unidos, 94115
- GSK Investigational Site
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San Jose, California, Estados Unidos, 95116
- GSK Investigational Site
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Minnesota
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Minneapolis, Minnesota, Estados Unidos, 55415
- GSK Investigational Site
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New York
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New York, New York, Estados Unidos, 10029
- GSK Investigational Site
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Pennsylvania
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Philadelphia, Pennsylvania, Estados Unidos, 19104
- GSK Investigational Site
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Clichy, Francia, 92118
- GSK Investigational Site
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Créteil, Francia, 94010
- GSK Investigational Site
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Limoges, Francia, 87042
- GSK Investigational Site
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Lyon, Francia, 69004
- GSK Investigational Site
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Marseille, Francia, 13008
- GSK Investigational Site
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Athens, Grecia, 10676
- GSK Investigational Site
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Athens, Grecia, 11527
- GSK Investigational Site
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Pokfulam, Hong Kong
- GSK Investigational Site
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Shatin, Hong Kong
- GSK Investigational Site
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Bergamo, Italia, 24127
- GSK Investigational Site
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Florence, Italia, 50134
- GSK Investigational Site
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Milan, Italia
- GSK Investigational Site
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Naples, Italia, 80131
- GSK Investigational Site
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Padova, Italia, 35131
- GSK Investigational Site
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Pisa, Italia, 56124
- GSK Investigational Site
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Roma, Italia, 00161
- GSK Investigational Site
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Chiba, Japón, 270-1694
- GSK Investigational Site
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Hokkaido, Japón, 006-8555
- GSK Investigational Site
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Hokkaido, Japón, 053-8506
- GSK Investigational Site
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Hyōgo, Japón, 660-8550
- GSK Investigational Site
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Kagawa, Japón, 761-0793
- GSK Investigational Site
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Kagawa, Japón, 760-8557
- GSK Investigational Site
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Kumamoto, Japón, 860-8556
- GSK Investigational Site
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Kumamoto, Japón, 862-8655
- GSK Investigational Site
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Osaka, Japón, 540-0006
- GSK Investigational Site
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Osaka, Japón, 565-0871
- GSK Investigational Site
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Tokyo, Japón, 180-8610
- GSK Investigational Site
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Yamanashi, Japón, 409-3898
- GSK Investigational Site
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Auckland, Nueva Zelanda, 2025
- GSK Investigational Site
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Auckland, Nueva Zelanda, 1023
- GSK Investigational Site
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Beijing, Porcelana, 100050
- GSK Investigational Site
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Chengdu, Porcelana, 610072
- GSK Investigational Site
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Guangzhou, Porcelana, 510630
- GSK Investigational Site
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Shanghai, Porcelana, 200040
- GSK Investigational Site
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London, Reino Unido, SE5 9RS
- GSK Investigational Site
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London, Reino Unido, SW17 0QT
- GSK Investigational Site
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London, Reino Unido, E1 8PR
- GSK Investigational Site
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Middlesbrough, Reino Unido, TS4 3BW
- GSK Investigational Site
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Singapore, Singapur, 119074
- GSK Investigational Site
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Singapore, Singapur, 169608
- GSK Investigational Site
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Ekurhuleni, Sudáfrica, 1459
- GSK Investigational Site
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Johannesburg, Sudáfrica, 2193
- GSK Investigational Site
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Kaohsiung City, Taiwán, 807
- GSK Investigational Site
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Kaohsiung City, Taiwán, 824
- GSK Investigational Site
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Taichung, Taiwán, 404
- GSK Investigational Site
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Tau-Yuan, Taiwán, 333
- GSK Investigational Site
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
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.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación Secuencial
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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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 |
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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 |
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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 |
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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 |
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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 |
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Number of participants achieving functional cure
Periodo de tiempo: Up to 100 Weeks
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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
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Number of participants achieving functional cure with high Baseline HBsAg level
Periodo de tiempo: Up to 100 Weeks
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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
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Number of participants achieving functional cure with low Baseline HBsAg level
Periodo de tiempo: Up to 100 Weeks
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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
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Number of participants achieving functional cure with low Baseline HBsAg level compared against placebo + bepirovirsen arm
Periodo de tiempo: Up to 100 Weeks
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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
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Number of participants with undetected HBsAg and HBV DNA <LLOQ
Periodo de tiempo: Up to 48 Weeks
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The number of participants with undetected HBsAg and HBV DNA <LLOQ at the end of bepirovirsen treatment will be reported. |
Up to 48 Weeks
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Director de estudio: GSK Clinical Trials, GlaxoSmithKline
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Infecciones transmitidas por la sangre
- Procesos Patológicos
- Enfermedad crónica
- Atributos de la enfermedad
- Infecciones
- Enfermedades virales
- Enfermedades del Sistema Digestivo
- Enfermedades del HIGADO
- Hepatitis, Viral, Humana
- Enfermedades contagiosas
- Infecciones por virus de ADN
- Infecciones por Hepadnaviridae
- Hepatitis Crónica
- Hepatitis
- Condiciones Patológicas, Signos y Síntomas
- Hepatitis B
- Hepatitis B Crónica
Otros números de identificación del estudio
- 218309
- 2024-514507-33-00 (Ctis)
- 2024-514507-33-00 (Identificador de registro: CTIS (EU))
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
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
Marco de tiempo para compartir IPD
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.
Criterios de acceso compartido de IPD
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.
Tipo de información de apoyo para compartir IPD
- PROTOCOLO DE ESTUDIO
- SAVIA
- CIF
- RSC
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .