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Un estudio de JNJ-73763989 + Nucleos(t)Ide Analog en participantes coinfectados con el virus de la hepatitis B y la hepatitis D (REEF-D)

24 de junio de 2026 actualizado por: Janssen Research & Development, LLC

Estudio de fase 2, multicéntrico, aleatorizado, doble ciego, controlado con placebo con tratamiento activo diferido para investigar la eficacia, la seguridad y la farmacocinética de JNJ-73763989 + análogo de nucleos(t)ide en participantes coinfectados con hepatitis B y hepatitis Virus D

El propósito del estudio es evaluar la eficacia del tratamiento contra el virus de la hepatitis D (VHD) del régimen JNJ-73763989 + análogo de nucleós(t)ido (NA) en comparación con NA solo.

Descripción general del estudio

Estado

Terminado

Condiciones

Intervención / Tratamiento

Descripción detallada

JNJ-73763989 es un antiviral terapéutico dirigido al hígado para inyección subcutánea diseñado para tratar la infección crónica por el virus de la hepatitis B (VHB) a través del mecanismo de interferencia del ácido ribonucleico. Este estudio de fase 2 está diseñado para evaluar la seguridad y eficacia de JNJ-73763989 en pacientes infectados con VHB que están coinfectados con VHD. El estudio consta de 2 partes: la Parte 1 evaluará la seguridad, la tolerabilidad y la actividad antiviral de JNJ-73763989 + NA, mientras que la Parte 2 evaluará la seguridad y eficacia del régimen JNJ-73763989 + NA en el tratamiento de la coinfección por VHB/VHD. . Cada parte incluye 3 fases: fase de detección (desde 4 semanas hasta un máximo de 8 semanas), fase de intervención (144 semanas para el brazo A y 148 semanas para el brazo B) y fase de seguimiento (48 semanas). La duración de la participación en el estudio individual será de entre 196 y 204 semanas. Seguridad y tolerabilidad (incluidos eventos adversos [EA] y EA graves, evaluaciones de laboratorio, electrocardiograma [ECG], signos vitales, examen físico), eficacia (incluido ácido ribonucleico [ARN] de VHD, ácido desoxirribonucleico [ADN] de VHB y antígenos), y la farmacocinética se evaluará a lo largo del estudio.

Tipo de estudio

Intervencionista

Inscripción (Actual)

52

Fase

  • Fase 2

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

  • Alemania
      • Essen, Alemania, 45147
        • Universitätsklinikum Essen
      • Frankfurt, Alemania, 60590
        • Universitätsklinikum Johann Wolfgang Goethe- Universität Frankfurt Medizinische Klinik 1
      • Hanover, Alemania, 30625
        • Medizinische Hochschule Hannover
  • Australia
      • Camperdown, Australia, 2050
        • Royal Prince Alfred Hospital
      • Footscray, Australia, 3011
        • Western Health
      • Westmead, Australia, 2145
        • Westmead Hospital
  • Brasil
      • Boa Vista, Brasil, 69304015
        • Centro Oncológico De Roraima
      • Manaus, Brasil, 69040-000
        • Fundacao De Medicina Tropical Doutor Heitor Vieira Dourado
      • Porto Velho, Brasil, 76812-329
        • Cepem - Centro de Pesquisa Em Medicina Tropical
  • España
      • Barcelona, España, 8028
        • Hosp Clinic de Barcelona
      • Barcelona, España, 8035
        • Hosp Univ Vall D Hebron
      • Madrid, España, 28041
        • Hosp. Univ. 12 de Octubre
      • Santander, España, 39008
        • Hosp. Univ. Marques de Valdecilla
  • Estados Unidos
    • California
      • Redwood City, California, Estados Unidos, 94063
        • Stanford University School of Medicine
    • Massachusetts
      • Boston, Massachusetts, Estados Unidos, 02114
        • Harvard Medical School Massachusetts General Hospital
  • Francia
      • Clichy, Francia, 92110
        • Hopital Beaujon
      • Lyon, Francia, 69004
        • Hôpital de la Croix Rousse
      • Nantes, Francia, 44093
        • CHU de Nantes hotel Dieu
      • Paris, Francia, 75012
        • CHU Hopital Saint Antoine
      • Rennes, Francia, 35033
        • Chu Rennes Hopital Pontchaillou
  • Italia
      • Milan, Italia, 20122
        • Irccs Ospedale Maggiore Di Milano
      • Pisa, Italia, 56124
        • Azienda Ospedaliero Universitaria Pisana
      • Rome, Italia, 00161
        • Universita degli Studi di Roma 'La Sapienza' - Umberto I Policlinico di Roma
      • Torino, Italia, 10126
        • Ospedale Molinette, AO Città della Salute e della Scienza di
  • Japón
      • Bunkyō City, Japón, 113 8519
        • Tokyo Medical and Dental University Hospital
      • Hiroshima, Japón, 730-8619
        • Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital
      • Iizuka-shi, Japón, 820-8505
        • National Hospital Organization Shikoku Cancer Center
      • Ikeda, Japón, 563-8510
        • Ikeda City Hospital
      • Kumamoto, Japón, 860-8556
        • Kumamoto University Hospital
      • Kumamoto, Japón, 862 8655
        • Kumamoto Shinto General Hospital
      • Nagasaki, Japón, 852-8501
        • Nagasaki University Hospital
      • Nagasaki, Japón, 856-8562
        • National Hospital Organization Nagasaki Medical Center
      • Nakagami Gun, Japón, 903-0215
        • University of the Ryukyus Hospital
      • Okinawa, Japón, 904-2195
        • Nakagami Hospital
      • Suita, Japón, 564-8567
        • Suita Municipal Hospital
      • Suita-shi, Japón, 565-0871
        • Osaka University Hospital
      • Sumida Ku, Japón, 130 8575
        • Tokyo Metropolitan Bokutoh Hospital
  • Nueva Zelanda
      • Auckland, Nueva Zelanda, 1010
        • New Zealand Clinical Research
  • Porcelana
      • Beijing, Porcelana, 100015
        • Beijing Ditan Hospital Capical Medical University
      • Beijing, Porcelana, 100044
        • Peking University People s Hospital
      • Changchun, Porcelana, 130021
        • The First Bethune Hospital of Jilin University
      • Chengdu, Porcelana, 610041
        • West China Hospital Sichuan University
      • Chongqing, Porcelana, 400010
        • The Second Affiliated Hospital of Chongqing Medical University
      • Guangzhou, Porcelana, 510515
        • Nanfang Hospital
      • Guangzhou, Porcelana, 510000
        • Guangzhou Eighth People's Hospital, Guangzhou Medical University
      • Hangzhou, Porcelana, 310003
        • The First Affiliated Hospital Zhejiang University College of Medicine
      • Shanghai, Porcelana, 200040
        • Huashan Hospital Fudan University
  • Reino Unido
      • London, Reino Unido, SE5 9RF
        • Kings College Hospital
  • Rusia
      • Krasnoyarsk, Rusia, 660049
        • Krasnoyarsk Regional Center For AIDS And Infectious Diseases Treatment And Prophylaxis
      • Saint Petersburg, Rusia, 190103
        • St. Petersburg City Center for AIDS and Infectious Diseases Treatment and Prophylaxis
      • Samara, Rusia, 443045
        • Medical Company Hepatolog Ltd
  • Suecia
      • Danderyd, Suecia, 18288
        • Danderyds Sjukhus
      • Malmö, Suecia, 20502
        • Skanes universitetssjukhus
      • Stockholm, Suecia, 14186
        • Karolinska Universitetssjukhuset Huddinge
  • Taiwán
      • Kaohsiung City, Taiwán, 80756
        • Kaohsiung Medical University Chung Ho Memorial Hospital
      • Taipei, Taiwán, 10002
        • National Taiwan University Hospital
      • Tiachung, Taiwán
        • China Medical University Hospital
  • Turquía (Türkiye)
      • Istanbul, Turquía (Türkiye), 34098
        • Istanbul University Cerrahpasa Medical Faculty
      • Izmir, Turquía (Türkiye), 35100
        • Ege University Medical of Faculty, Department of Gastroenterology
      • Kocaeli, Turquía (Türkiye), 41001
        • Kocaeli University Medical Faculty
      • Trabzon, Turquía (Türkiye), 61080
        • Karadeniz Teknik University Medical Faculty

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años a 65 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Descripción

Criterios de inclusión:

  • Médicamente estable según el examen físico, historial médico, signos vitales, electrocardiograma (ECG) en la selección
  • Coinfección crónica por el virus de la hepatitis B (VHB) y el virus de la hepatitis D (HDV) con documentación al menos 6 meses antes de la detección
  • Para la Parte 1: ARN de la hepatitis D (ARN del HDV) mayor o igual a (>=) 1000 unidades internacionales por mililitro (UI/mL) en la selección. Para la Parte 2: debe tener valores de ARN de HDV >= 500 UI/mL, y debe tener valores de antígeno de superficie de hepatitis B (HBsAg) menores o iguales a (
  • Alanina aminotransferasa (ALT) superior al límite superior normal (LSN) pero inferior a 10 veces (LSN)
  • Índice de masa corporal (IMC) entre 18,0 y 35,0 kilogramos por metro cuadrado (kg/m^2), extremos incluidos
  • Medidas anticonceptivas altamente efectivas implementadas para participantes mujeres en edad fértil o participantes hombres con parejas mujeres en edad fértil
  • Participantes no cirróticos y participantes con cirrosis compensada (Child Pugh clase A) en la selección (Parte 1) y los participantes deben tener ausencia de cirrosis y un recuento de plaquetas de >= 140 000 por decilitro (dL) para inscribirse en la Parte 2

Criterio de exclusión:

  • Evidencia de infección por el virus de la hepatitis A, C o E o evidencia de inmunodeficiencia humana, virus tipo 1 (VIH-1) o infección por VIH-2 en la selección
  • Antecedentes o evidencia de signos/síntomas clínicos de descompensación hepática, incluidos, entre otros: hipertensión portal, ascitis, encefalopatía hepática, várices esofágicas o cualquier anomalía de laboratorio que indique una función hepática reducida según se define en el protocolo.
  • Evidencia de enfermedad hepática de etiología no-HBV/HDV
  • Signos de carcinoma hepatocelular (HCC)
  • Anomalías de laboratorio significativas según lo definido en el protocolo en la selección
  • Participantes con antecedentes de malignidad en los 5 años anteriores a la selección
  • Ritmo sinusal anormal o parámetros de ECG en la selección como se define en el protocolo
  • Historial o actual de arritmia cardíaca o historial o evidencia clínica de enfermedad cardíaca significativa o inestable
  • Participantes con cualquier enfermedad actual o anterior para la cual, en opinión del investigador y/o patrocinador, la participación no sería lo mejor para el participante.
  • Antecedentes o enfermedad de la piel clínicamente significativa actual o erupción por medicamentos
  • Participantes con alergias conocidas, hipersensibilidad o intolerancia a JNJ-3989 o sus excipientes o excipientes del contenido de placebo
  • Contraindicaciones para el uso de entecavir (ETV), tenofovir disoproxilo o tenofovir alafenamida (TAF) según la información de prescripción local
  • Participantes que han tomado cualquier terapia no permitida por protocolo
  • Mujeres participantes que están embarazadas, amamantando o planeando quedar embarazadas mientras están inscritas en este estudio o dentro de los 90 días posteriores a la última dosis de la intervención del estudio
  • Participantes masculinos que planean engendrar un hijo mientras están inscritos
  • Participantes que se sometieron o planificaron una cirugía mayor (por ejemplo, que requirió anestesia general) o que recibieron un trasplante de órgano
  • Participantes vulnerables (ejemplo, personas privadas de libertad, personas bajo una medida legal de protección)

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación paralela
  • Enmascaramiento: Doble

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: Grupo de tratamiento activo inmediato: JNJ-73763989 + NA
Los participantes recibirán una inyección subcutánea (SC) de JNJ-73763989 cada 4 semanas (Q4W) junto con NA (entecavir [ETV], tenofovir disoproxil o tenofovir alafenamida [TAF]) una vez al día durante 144 semanas en la Parte 1 y durante al menos 96 semanas en la Parte 2.
Droga: Tenofovir disoproxilo
Los comprimidos recubiertos con película de tenofovir disoproxilo se administrarán por vía oral.
Droga: JNJ-73763989
JNJ-73763989 se administrará como una inyección SC.
Otros nombres:
  • JNJ-3989
Droga: Entecavir (ETV) monohidrato
El comprimido recubierto con película de monohidrato de ETV se administrará por vía oral.
Droga: Tenofovir alafenamida (TAF)
El comprimido recubierto con película de TAF se administrará por vía oral.
Comparador de placebos: Grupo de tratamiento activo diferido: Placebo+NA+JNJ-73763989+NA
Los participantes recibirán un placebo equivalente a la inyección SC de JNJ-73763989 cada 4 semanas junto con NA (ETV, tenofovir disoproxil o TAF) una vez al día durante 52 semanas, seguido de una inyección SC de JNJ-73763989 cada 4 semanas junto con NA una vez al día durante 96 semanas en la Parte 1 y durante al menos 48 semanas en la Parte 2.
Droga: Tenofovir disoproxilo
Los comprimidos recubiertos con película de tenofovir disoproxilo se administrarán por vía oral.
Droga: JNJ-73763989
JNJ-73763989 se administrará como una inyección SC.
Otros nombres:
  • JNJ-3989
Droga: Entecavir (ETV) monohidrato
El comprimido recubierto con película de monohidrato de ETV se administrará por vía oral.
Droga: Tenofovir alafenamida (TAF)
El comprimido recubierto con película de TAF se administrará por vía oral.
Droga: Placebo
El placebo coincidente con JNJ-73763989 se administrará como una inyección SC.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Double-blind:Part 1: Percentage of Participants With HDV Ribonucleic Acid (RNA) >=2 log10 IU/mL Decline From Baseline or HDV RNA Target Not Detected (TND) in Combination With Normal Alanine Aminotransferase (ALT) at Week 48 (Multiple Imputation Approach)
Periodo de tiempo: Week 48
Percentage of participants with hepatitis D virus (HDV) RNA greater than or equal to (>=) 2 log10 international units per milliliter (IU/mL) decline from baseline or HDV RNA TND in combination with normal ALT at Week 48 using multiple imputation approach was reported. TND was defined as no traces of HBV RNA were detected/found. Normal ALT was defined as ALT less than (<) upper limit of normal (ULN) with ULN = 34 units per liter (U/L) for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48
Double-blind: Part 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND in Combination With Normal ALT at Week 48 (Multiple Imputation Approach)
Periodo de tiempo: Week 48
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND in combination with normal ALT at Week 48 using multiple imputation approach was reported. TND was defined as no traces of HBV RNA were detected/found. Normal ALT was defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Parts 1 and 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA < Lower Limits of Quantification (LLOQ) at Week 48
Periodo de tiempo: Week 48
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA < LLOQ at Week 48 was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48
Parts 1 and 2: Percentage of Participants With Normal ALT at Week 48
Periodo de tiempo: Week 48
Percentage of participants with normal ALT at Week 48 was reported. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48
Parts 1 and 2: Percentage of Participants With Hepatitis B Surface Antigen (HBsAg) Seroclearance at Week 48
Periodo de tiempo: Week 48
Percentage of participants with HBsAg seroclearance at Week 48 was reported. HBsAg seroclearance was defined as HBsAg negativity (quantitative HBsAg level <LLOQ) based on the assay used.
Week 48
Parts 1 and 2: Percentage of Participants With >=2 Kilopascal (kPa) Reduction From Baseline in Liver Stiffness Measurement (LSM) Assessed by Vibration-controlled Transient Elastography (VCTE) (FibroScan) at Week 48
Periodo de tiempo: Week 48
Percentage of participants with >=2 kPa reduction from baseline in LSM assessed by VCTE (fibroscan) at Week 48 was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48
Part 1: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND in Combination With Normal ALT
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND in combination with normal ALT was reported. TND was defined as no traces of HBV RNA were detected/found. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48, FU Week 24
Part 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND in Combination With Normal ALT
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND in combination with normal ALT was reported. TND was defined as no traces of HBV RNA were detected/found. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48, FU Week 24
Part 1: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline in Combination With Normal ALT
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline in combination with normal ALT was reported. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline in Combination With Normal ALT
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline in combination with normal ALT was reported. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 1: Percentage of Participants With HDV RNA TND in Combination With Normal ALT
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA TND in combination with normal ALT was reported. Normal ALT is defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. TND was defined as no traces of HBV RNA were detected/found. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48 and FU Week 24
Part 2: Percentage of Participants With HDV RNA TND in Combination With Normal ALT
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA TND in combination with normal ALT was reported. TND was defined as no traces of HBV RNA were detected/found. Normal ALT was defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Week 48 and FU Week 24
Part 1: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND was reported. TND was defined as no traces of HBV RNA were detected/found. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND was reported. TND was defined as no traces of HBV RNA were detected/found. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 1: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 2: Percentage of Participants With HDV RNA >=2 log10 IU/mL Decline From Baseline
Periodo de tiempo: Week 48 and FU Week 24
Percentage of participants with HDV RNA >=2 log10 IU/mL decline from baseline was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Week 48 and FU Week 24
Part 1: Percentage of Participants With HDV RNA TND
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HDV RNA TND was reported. TND was defined as no traces of HBV RNA were detected/found.
Week 48, FU Week 24
Part 2: Percentage of Participants With HDV RNA TND
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HDV RNA TND was reported. TND was defined as no traces of HBV RNA were detected/found.
Week 48, FU Week 24
Part 1: Percentage of Participants With Normal ALT
Periodo de tiempo: FU Week 24
Percentage of participants with Normal ALT was reported. Normal ALT was defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male.
FU Week 24
Part 2: Percentage of Participants With Normal ALT
Periodo de tiempo: FU Week 24
Percentage of participants with Normal ALT was reported. Normal ALT was defined as ALT <ULN with ULN = 34 U/L for female and 43 U/L for male.
FU Week 24
Parts 1 and 2: Time to Reach HDV RNA >=2 log10 IU/mL Decline From Baseline or HDV RNA TND
Periodo de tiempo: Placebo + NA: From Day 1 up to Week 196; JNJ-3989 + NA: From Day 1 up to Week 192
Time to reach HDV RNA >=2 log10 IU/mL decline from baseline or HDV RNA TND was planned to be reported. It is defined as the number of days between the date of first study intervention intake and the date of the first occurrence of HDV RNA >= 2 log10 IU/mL decline or HDV RNA TND, whichever event is first (that is, minute [the date of the first HDV RNA >= 2 log10 IU/mL decline, date of the first time HDV RNA is TND] - the date of first study intervention intake + 1). TND was defined as no traces of HBV RNA were detected/found. The multiple imputation approach was derived using a longitudinal multiple regression model to impute missing data.
Placebo + NA: From Day 1 up to Week 196; JNJ-3989 + NA: From Day 1 up to Week 192
Part 1: Change From Baseline in HDV RNA
Periodo de tiempo: Baseline (Day 1), Week 48
Change from baseline in HDV RNA was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48
Part 2: Change From Baseline in HDV RNA
Periodo de tiempo: Baseline (Day 1), Week 48
Change from baseline in HDV RNA was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48
Part 1: Change From Baseline in ALT
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 24
Change from baseline in ALT was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 24
Part 2: Change From Baseline in ALT
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 44
Change from baseline in ALT was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 44
Parts 1 and 2: Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with TEAEs was reported. An adverse event (AE) was any untoward medical occurrence in a participant participating in a clinical study that does not necessarily have a causal relationship with the study intervention. TEAE were all AEs with a start date on or after the first administration of study treatment or any ongoing event that worsens in severity, intensity or frequency after the first administration of study treatment.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Treatment-emergent Serious Adverse Events (TESAEs)
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with TESAEs was reported. SAE is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. TESAE were all SAEs with a start date on or after the first administration of study treatment or any ongoing event that worsens in severity, intensity or frequency after the first administration of study treatment.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Clinical Laboratory Tests: Chemistry
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with worst treatment-emergent abnormalities in clinical laboratory tests: chemistry was reported. Laboratory abnormalities were graded according to the Division of Acquired Immunodeficiency Syndrome (DAIDS) criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported. Only those laboratory parameters for which at least one participant had an abnormality are reported in this outcome measure. ALT: Alanine Aminotransferase; AST: Aspartate Aminotransferase; SGPT: serum glutamic pyruvic transaminase; SGOT: serum glutamic-oxaloacetic transaminase.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Clinical Laboratory Tests: Hematology
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52
Percentage of participants with worst treatment-emergent abnormalities in clinical laboratory tests: hematology was reported. Laboratory abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported. Only those laboratory parameters for which at least one participant had an abnormality are reported in this outcome measure.
Placebo + NA: DB Phase: Week 0 up to Week 52; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Clinical Laboratory Tests: Urinalysis
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with worst treatment-emergent abnormalities in clinical laboratory tests: urinalysis was reported. Urinalysis included parameters: Glycosuria, Hematuria, and Proteinuria. Laboratory abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Clinical Laboratory Tests: Urine Chemistry
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with worst treatment-emergent abnormalities in clinical laboratory tests: urine chemistry was reported. Laboratory abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Clinical Laboratory Tests: Renal Biomarkers
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with worst treatment-emergent abnormalities in clinical laboratory tests: renal biomarkers was reported. Laboratory abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in 12-Lead Electrocardiogram
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with worst treatment-emergent abnormalities in 12-Lead Electrocardiogram was reported. Only those parameters were reported where at least one participant had abnormality. Worst ECG abnormalities were determined based on investigator's discretion. bpm: beats per minute; ms: milliseconds; QTcF: QT interval corrected for heart rate according to Fridericia; QTc: Corrected QT Interval.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Worst Treatment-emergent Abnormalities in Vital Signs
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144
Percentage of participants with worst treatment-emergent abnormalities in vital signs (pulse rate, supine systolic blood pressure). Vital signs abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening. Only Grade 3 and Grade 4 abnormalities were considered worst and are reported. Only those laboratory parameters for which at least one participant had an abnormality are reported in this outcome measure. Only those parameters were reported where at least one participant had abnormality. Abn: abnormal
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144
Parts 1 and 2: Percentage of Participants With Clinically Significant Abnormalities in Physical Examination
Periodo de tiempo: Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Percentage of participants with clinically significant abnormalities in physical examination was reported. Vital signs abnormalities were graded according to the DAIDS criteria as follows: Grade 1 - Mild, Grade 2 - Moderate, Grade 3 - Severe, and Grade 4 - Potentially life threatening.
Placebo + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 148, FUP Phase: Week 148 up to Week 196; JNJ-3989 + NA: DB Phase: Week 0 up to Week 52, OL Phase: Week 52 up to Week 144; FUP Phase: Week 144 up to Week 192
Parts 1 and 2: Percentage of Participants With Hepatitis B Surface Antigen (HBsAg) Seroclearance
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBsAg seroclearance was reported. HBsAg seroclearance is defined as the quantitative HBsAg < LLOQ.
Week 48, FU Week 24
Part 1: Change From Baseline Over Time in HBsAg
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 24
Change from baseline over time in HBsAg was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 24
Part 2: Change From Baseline Over Time in HBsAg
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 24
Change from baseline over time in HBsAg was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 24
Part 1: Change From Baseline Over Time in Hepatitis B Virus e Antigen (HBeAg)
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 24
Change from baseline over time in HBeAg was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 24
Part 2: Change From Baseline Over Time in HBeAg
Periodo de tiempo: Baseline (Day 1), Week 48, FU Week 24
Change from baseline over time in HBeAg was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Week 48, FU Week 24
Part 1: Change From Baseline Over Time in Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA)
Periodo de tiempo: Baseline (Day 1), Weeks 48 , 136, EOS (FU Week 48)
Change from baseline over time in HBV DNA was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Weeks 48 , 136, EOS (FU Week 48)
Part 2: Change From Baseline Over Time in HBV DNA
Periodo de tiempo: Baseline (Day 1), Weeks 48, 112, EOS (FU Week 48)
Change from baseline over time in HBV DNA was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline (Day 1), Weeks 48, 112, EOS (FU Week 48)
Part 1: Percentage of Participants With HBsAg Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBsAg levels below/above different cut-offs was reported. HBsAg values (IU/mL) were <1,000, <100, <10, <1, and <0.05 IU/mL (i.e, <LLOQ). LLOQ value is 0.05 IU/mL.
Week 48, FU Week 24
Part 2: Percentage of Participants With HBsAg Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBsAg levels below/above different cut-offs was reported. HBsAg values (IU/mL) were <1,000, <100, <10, <1, and <0.05 IU/mL (i.e, <LLOQ). LLOQ value is 0.05 IU/mL.
Week 48, FU Week 24
Part 1: Percentage of Participants With HBeAg Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBeAg levels below/above different cut-offs was reported. Cut-offs were >= 0.5 log10 IU/mL, >= 1.0 log10 IU/mL, >= 2.0 log10 IU/mL, and >= 3.0 log10 IU/mL.
Week 48, FU Week 24
Part 2: Percentage of Participants With HBeAg Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBeAg levels below/above different cut-offs was reported. Cut-offs were >= 0.5 log10 IU/mL, >= 1.0 log10 IU/mL, >= 2.0 log10 IU/mL, and >= 3.0 log10 IU/mL.
Week 48, FU Week 24
Part 1: Percentage of Participants With HBV DNA Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBV DNA levels below/above different cut-offs (<LLOQ and <2000 IU/mL) was reported. For HBV DNA, LLOQ is 20 IU/mL.
Week 48, FU Week 24
Part 2: Percentage of Participants With HBV DNA Levels Below/Above Different Cut-offs
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBV DNA levels below/above different cut-offs (<LLOQ and <2000 IU/mL). For HBV DNA, LLOQ is 20 IU/mL
Week 48, FU Week 24
Part 1: Time to Reach HBsAg <1 IU/mL Based on Kaplan-Meier Estimate
Periodo de tiempo: Placebo + NA: From baseline up to Week 196; JNJ-3989 + NA: From baseline up to Week 192
Time to reach HBsAg <1 IU/mL based on Kaplan-Meier estimate was reported. Time to first occurrence of the HBsAg <1 IU/mL is defined as the number of days between the date of first study intervention intake and the date of the first occurrence of the HBsAg <1 IU/mL. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Placebo + NA: From baseline up to Week 196; JNJ-3989 + NA: From baseline up to Week 192
Part 2: Time to Reach HBsAg <1 IU/mL Based on Kaplan-Meier Estimate
Periodo de tiempo: Placebo + NA: From baseline up to Week 196; JNJ-3989 + NA: From baseline up to Week 192
Time to reach HBsAg <1 IU/mL based on Kaplan-Meier estimate was reported. Time to first occurrence of the HBsAg <1 IU/mL is defined as the number of days between the date of first study intervention intake and the date of the first occurrence of the HBsAg <1 IU/mL. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Placebo + NA: From baseline up to Week 196; JNJ-3989 + NA: From baseline up to Week 192
Part 1: Percentage of Participants With HBV DNA Virologic Breakthrough
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBV DNA virologic breakthrough was reported. Virologic Breakthrough was defined as confirmed on-treatment HBV DNA increase by >1 log10 IU/mL from nadir or confirmed on-treatment HBV DNA level >200 IU/mL in participants who had HBV DNA level <LLOQ of the HBV DNA assay.
Week 48, FU Week 24
Part 2: Percentage of Participants With HBV DNA Virologic Breakthrough
Periodo de tiempo: Week 48, FU Week 24
Percentage of participants with HBV DNA virologic breakthrough was reported. Virologic Breakthrough was defined as confirmed on-treatment HBV DNA increase by >1 log10 IU/mL from nadir or confirmed on-treatment HBV DNA level >200 IU/mL in participants who had HBV DNA level <LLOQ of the HBV DNA assay.
Week 48, FU Week 24
Parts 1 and 2: Maximum Plasma Concentration (Cmax) of JNJ-3976
Periodo de tiempo: Weeks 4, 8, and 16
Maximum plasma concentration (Cmax) of JNJ-3976 were reported. Participant wise data is reported as n<3.
Weeks 4, 8, and 16
Parts 1 and 2: Maximum Plasma Concentration (Cmax) of JNJ-3924
Periodo de tiempo: Weeks 4, 8, and 16
Maximum plasma concentration (Cmax) of JNJ-3924 was reported. Participant wise data is reported as n<3.
Weeks 4, 8, and 16
Parts 1 and 2: Area Under the Plasma Concentration-time Curve From Time 0 to 24 Hours (AUC[0-24h]) of JNJ-3976
Periodo de tiempo: Predose up to 24 hours post dose on Weeks 4, 8, and 16
Area under the plasma concentration-time curve from time 0 to 24 hours (AUC[0-24h]) of JNJ-3976 were reported. Participant wise data is reported as n<3.
Predose up to 24 hours post dose on Weeks 4, 8, and 16
Parts 1 and 2: Area Under the Plasma Concentration-time Curve From Time 0 to 24 Hours (AUC[0-24h]) of JNJ-3924
Periodo de tiempo: Predose up to 24 hours post dose on Weeks 4, 8, and 16
Area under the plasma concentration-time curve from time 0 to 24 hours (AUC[0-24h]) of JNJ-3924 were reported. Participant wise data is reported as n<3.
Predose up to 24 hours post dose on Weeks 4, 8, and 16
Parts 1 and 2: Area Under the Plasma Concentration-time Curve From Time 0 to Last Quantifiable Time (AUC[0-last]) of JNJ-3976
Periodo de tiempo: Weeks 4, 8, and 16
Area under the plasma concentration-time curve from time 0 to Last Quantifiable Time (AUC[0-last]) of JNJ-3976 were reported. Participant wise data is reported as n<3.
Weeks 4, 8, and 16
Parts 1 and 2: Area Under the Plasma Concentration-time Curve From Time 0 to Last Quantifiable Time (AUC[0-last]) of JNJ-3924
Periodo de tiempo: Weeks 4, 8, and 16
Area under the plasma concentration-time curve from time 0 to Last Quantifiable Time (AUC[0-last]) of JNJ-3924 were reported. Participant wise data is reported as n<3.
Weeks 4, 8, and 16
Part 1: Percentage of Participants With >=2 Kilopascals (kPa) Reduction From Baseline in Liver Stiffness Measurement (LSM) Assessed by Vibration-controlled Transient Elastography (VCTE; FibroScan)
Periodo de tiempo: Baseline, EOS (FU Week 48)
Percentage of participants with >=2 kPa reduction from baseline >=2 kPa in liver stiffness measurement (LSM) assessed by VCTE (fibroScan) was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline, EOS (FU Week 48)
Part 2: Percentage of Participants With >=2 kPa Reduction From Baseline in Liver Stiffness Measurement (LSM) Assessed by VCTE (FibroScan)
Periodo de tiempo: Baseline, EOS (FU Week 48)
Percentage of participants with >=2 kPa reduction from baseline in liver stiffness measurement (LSM) assessed by VCTE (FibroScan) was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline, EOS (FU Week 48)
Part 1: Change From Baseline in LSM Over Time Assessed by VCTE (FibroScan)
Periodo de tiempo: Baseline, Week 48, FU Week 24
Change from baseline in LSM over time assessed by VCTE (FibroScan) was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline, Week 48, FU Week 24
Part 2: Change From Baseline in LSM Over Time Assessed by VCTE (FibroScan)
Periodo de tiempo: Baseline, Week 48, FU Week 24
Change from baseline in LSM over time assessed by VCTE (FibroScan) was reported. The baseline assessment was defined as the last observed non-missing measurement before the date and time of the first administration of any of study intervention on Day 1.
Baseline, Week 48, FU Week 24
Part 1: Percentage of Participants With Sustained HDV Response Off-treatment Post End of JNJ-3989 Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with sustained HDV response Off-treatment post end of JNJ-3989 treatment was reported. A JNJ-3989 off-treatment sustained HDV response is defined by having HDV RNA TND during the FU phase after stopping JNJ-3989 regardless of continuing NA treatment.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Part 2: Percentage of Participants With Sustained HDV Response Off-treatment Post End of JNJ-3989 Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with sustained HDV response Off-treatment post end of JNJ-3989 treatment was reported. A JNJ-3989 off-treatment sustained HDV response is defined by having HDV RNA TND during the FU phase after stopping JNJ-3989 regardless of continuing NA treatment.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Part 1: Percentage of Participants With HDV Relapse Post End of JNJ-3989 Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with HDV relapse post end of JNJ-3989 treatment was reported. Off-treatment HDV relapse is defined as: 1. In participants with HDV RNA <LLOQ (i.e., 630 IU/ml) at EOT: Confirmed increase in HDV RNA of > 1 log10 IU/mL above the LLOQ JNJ-3989 off-treatment. 2. In participants with HDV RNA >LLOQ at EOT: Confirmed increase in HDV RNA of > 1 log10 IU/mL from EOT HDV RNA value JNJ-3989 off-treatment.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Part 2: Percentage of Participants With HDV Relapse Post End of JNJ-3989 Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with HDV relapse post end of JNJ-3989 treatment was reported. Off-treatment HDV relapse is defined as: 1. In participants with HDV RNA <LLOQ (i.e., 630 IU/ml) at EOT: Confirmed increase in HDV RNA of > 1 log10 IU/mL above the LLOQ JNJ-3989 off-treatment. 2. In participants with HDV RNA >LLOQ at EOT: Confirmed increase in HDV RNA of > 1 log10 IU/mL from EOT HDV RNA value JNJ-3989 off-treatment.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Parts 1 and 2: Percentage of Participants With Sustained HBV Response Off-treatment Post End of JNJ-3989 Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with sustained HBV response off-treatment post end of JNJ-3989 treatment was reported.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Part 1: Percentage of Participants With HBV Flare (Virologic, Biochemical, and Clinical) Post End of Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with HBV flare (Virologic, biochemical, and clinical) post end of treatment was reported. Off-treatment is defined as the time period as the periods when the participants do not receive any of the study interventions (JNJ-3989/placebo and NA). Virologic flare is for participants who are off-treatment and had HBV DNA < LLOQ at the last observed point on all study treatments, and categorized based on the confirmed (i.e., two consecutive values) peak HBV DNA above any of the three thresholds: 20000 IU/mL, 2000 IU/mL and 200 IU/mL. Biochemical HBV flare is defined as a confirmed ALT and/or AST>=3*ULN and >=3* nadir (i.e. lowest value observed up to the time point of meeting the biochemical flare criteria). An HBV clinical flare occurs either when an HBV virologic flare and off-treatment HBV biochemical flare overlap in time or when a HBV biochemical flare starts within 4 weeks following the end of an HBV virologic flare.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Part 2: Percentage of Participants With HBV Flare (Virologic, Biochemical, and Clinical) Post End of Treatment
Periodo de tiempo: JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48
Percentage of participants with HBV flare (Virologic, biochemical, and clinical) post end of treatment was reported was reported. Off-treatment is defined as the time period as the periods when the participants do not receive any of the study interventions (JNJ-3989/placebo and NA). Virologic flare (Derivation 1) is for participants who are off-treatment and had HBV DNA < LLOQ at the last observed point on all study treatments, and categorized based on the confirmed (i.e., two consecutive values) peak HBV DNA above any of the three thresholds: 20000 IU/mL, 2000 IU/mL and 200 IU/mL. Biochemical HBV flare is defined as a confirmed ALT and/or AST>=3*ULN and >=3* nadir (i.e. lowest value observed up to the time point of meeting the biochemical flare criteria). An HBV clinical flare occurs either when an HBV virologic flare and off-treatment HBV biochemical flare overlap in time or when a HBV biochemical flare starts within 4 weeks following the end of an HBV virologic flare.
JNJ-73763989 (JNJ-3989) + Nucleos(t)Ide Analog (NA): Post end of treatment (Week 144) up to FU Week 48; Placebo + NA: Post end of treatment (Week 148) up to FU Week 48

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Patrocinador

Janssen Research & Development, LLC

Investigadores

  • Director de estudio: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio (Actual)

17 de septiembre de 2020

Finalización primaria (Actual)

19 de octubre de 2023

Finalización del estudio (Actual)

5 de marzo de 2025

Fechas de registro del estudio

Enviado por primera vez

28 de agosto de 2020

Primero enviado que cumplió con los criterios de control de calidad

1 de septiembre de 2020

Publicado por primera vez (Actual)

2 de septiembre de 2020

Actualizaciones de registros de estudio

Última actualización publicada (Actual)

22 de julio de 2026

Última actualización enviada que cumplió con los criterios de control de calidad

24 de junio de 2026

Última verificación

1 de junio de 2026

Más información

Términos relacionados con este estudio

Términos MeSH relevantes adicionales

Otros números de identificación del estudio

  • CR108868
  • 2020-001249-37 (Número EudraCT)
  • 73763989HPB2004 (Otro identificador: Janssen Research & Development, LLC)
  • 2023-506763-33-00 (Identificador de registro: EUCT number)

Plan de datos de participantes individuales (IPD)

¿Planea compartir datos de participantes individuales (IPD)?

SÍ

Descripción del plan IPD

La política de intercambio de datos de Janssen Pharmaceutical Companies of Johnson & Johnson está disponible en www.janssen.com/clinical-trials/transparency.

Como se indica en este sitio, las solicitudes de acceso a los datos del estudio se pueden enviar a través del sitio del proyecto Yale Open Data Access (YODA) en yoda.yale.edu

Información sobre medicamentos y dispositivos, documentos del estudio

Estudia un producto farmacéutico regulado por la FDA de EE. UU.

Sí

Estudia un producto de dispositivo regulado por la FDA de EE. UU.

No

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. .

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