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En studie av JNJ-73763989 + Nucleos(t)Ide Analog hos deltakere som samtidig er infisert med hepatitt B og hepatitt D-virus (REEF-D)

24. juni 2026 oppdatert av: Janssen Research & Development, LLC

En fase 2, multisenter, randomisert, dobbeltblind, placebokontrollert studie med utsatt aktiv behandling for å undersøke effektiviteten, sikkerheten og farmakokinetikken til JNJ-73763989 + Nucleos(t)Ide Analog hos deltakere som samtidig er infisert med hepatitt B og hepatitt D Virus

Hensikten med studien er å evaluere effekt under behandling mot hepatitt D-virus (HDV) av JNJ-73763989 + nukleos(t)ide-analog (NA)-regime sammenlignet med NA alene.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

JNJ-73763989 er et levermålrettet antiviralt terapeutisk middel for subkutan injeksjon designet for å behandle kronisk hepatitt B-virus (HBV)-infeksjon via ribonukleinsyreinterferensmekanisme. Denne fase 2-studien er designet for å evaluere sikkerhet og effekt av JNJ-73763989 hos HBV-infiserte pasienter som samtidig er infisert med HDV. Studien består av 2 deler: Del 1 vil evaluere sikkerhet, tolerabilitet og antiviral aktivitet av JNJ-73763989 + NA, mens del 2 vil evaluere sikkerheten og effekten av JNJ-73763989 + NA-regimet ved behandling av HBV/HDV-kombinasjonsinfeksjon . Hver del inkluderer 3 faser: Screeningsfase (fra 4 uker til maksimalt 8 uker), intervensjonsfase (144 uker for arm A og 148 uker for arm B) og oppfølgingsfase (48 uker). Varigheten av individuell studiedeltakelse vil være mellom 196 og 204 uker. Sikkerhet og toleranse (inkludert uønskede hendelser [AE] og alvorlige AE, laboratorievurderinger, elektrokardiogram [EKG], vitale tegn, fysisk undersøkelse), effekt (inkludert HDV ribonukleinsyre [RNA], HBV deoksyribonukleinsyre [DNA] og antigener) , og farmakokinetikken vil bli vurdert gjennom hele studien.

Studietype

Intervensjonell

Registrering (Faktiske)

52

Fase

  • Fase 2

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

      • Camperdown, Australia, 2050
        • Royal Prince Alfred Hospital
      • Footscray, Australia, 3011
        • Western Health
      • Westmead, Australia, 2145
        • Westmead Hospital
      • 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
    • California
      • Redwood City, California, Forente stater, 94063
        • Stanford University School of Medicine
    • Massachusetts
      • Boston, Massachusetts, Forente stater, 02114
        • Harvard Medical School Massachusetts General Hospital
      • Clichy, Frankrike, 92110
        • Hopital Beaujon
      • Lyon, Frankrike, 69004
        • Hôpital de La Croix Rousse
      • Nantes, Frankrike, 44093
        • CHU de Nantes hotel Dieu
      • Paris, Frankrike, 75012
        • CHU Hopital Saint Antoine
      • Rennes, Frankrike, 35033
        • Chu Rennes Hopital Pontchaillou
      • 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
      • Bunkyō City, Japan, 113 8519
        • Tokyo Medical and Dental University Hospital
      • Hiroshima, Japan, 730-8619
        • Hiroshima Red Cross Hospital & Atomic-bomb Survivors Hospital
      • Iizuka-shi, Japan, 820-8505
        • National Hospital Organization Shikoku Cancer Center
      • Ikeda, Japan, 563-8510
        • Ikeda City Hospital
      • Kumamoto, Japan, 860-8556
        • Kumamoto University Hospital
      • Kumamoto, Japan, 862 8655
        • Kumamoto Shinto General Hospital
      • Nagasaki, Japan, 852-8501
        • Nagasaki University Hospital
      • Nagasaki, Japan, 856-8562
        • National Hospital Organization Nagasaki Medical Center
      • Nakagami Gun, Japan, 903-0215
        • University of the Ryukyus hospital
      • Okinawa, Japan, 904-2195
        • Nakagami Hospital
      • Suita, Japan, 564-8567
        • Suita Municipal Hospital
      • Suita-shi, Japan, 565-0871
        • Osaka University Hospital
      • Sumida Ku, Japan, 130 8575
        • Tokyo Metropolitan Bokutoh Hospital
      • Beijing, Kina, 100015
        • Beijing Ditan Hospital Capical Medical University
      • Beijing, Kina, 100044
        • Peking University People s Hospital
      • Changchun, Kina, 130021
        • The First Bethune Hospital of Jilin University
      • Chengdu, Kina, 610041
        • West China Hospital Sichuan University
      • Chongqing, Kina, 400010
        • The Second Affiliated Hospital of Chongqing Medical University
      • Guangzhou, Kina, 510515
        • Nanfang Hospital
      • Guangzhou, Kina, 510000
        • Guangzhou Eighth People's Hospital, Guangzhou Medical University
      • Hangzhou, Kina, 310003
        • The First Affiliated Hospital Zhejiang University College of Medicine
      • Shanghai, Kina, 200040
        • Huashan Hospital Fudan University
      • Auckland, New Zealand, 1010
        • New Zealand Clinical Research
      • Krasnoyarsk, Russland, 660049
        • Krasnoyarsk Regional Center For AIDS And Infectious Diseases Treatment And Prophylaxis
      • Saint Petersburg, Russland, 190103
        • St. Petersburg City Center for AIDS and Infectious Diseases Treatment and Prophylaxis
      • Samara, Russland, 443045
        • Medical Company Hepatolog Ltd
      • Barcelona, Spania, 8028
        • Hosp Clinic de Barcelona
      • Barcelona, Spania, 8035
        • Hosp Univ Vall D Hebron
      • Madrid, Spania, 28041
        • Hosp. Univ. 12 de Octubre
      • Santander, Spania, 39008
        • Hosp. Univ. Marques de Valdecilla
      • London, Storbritannia, SE5 9RF
        • Kings College Hospital
      • Danderyd, Sverige, 18288
        • Danderyds Sjukhus
      • Malmö, Sverige, 20502
        • Skånes universitetssjukhus
      • Stockholm, Sverige, 14186
        • Karolinska Universitetssjukhuset Huddinge
      • Kaohsiung City, Taiwan, 80756
        • Kaohsiung Medical University Chung Ho Memorial Hospital
      • Taipei, Taiwan, 10002
        • National Taiwan University Hospital
      • Tiachung, Taiwan
        • China Medical University Hospital
      • Istanbul, Tyrkia (Türkiye), 34098
        • Istanbul University Cerrahpasa Medical Faculty
      • Izmir, Tyrkia (Türkiye), 35100
        • Ege University Medical of Faculty, Department of Gastroenterology
      • Kocaeli, Tyrkia (Türkiye), 41001
        • Kocaeli University Medical Faculty
      • Trabzon, Tyrkia (Türkiye), 61080
        • Karadeniz Teknik University Medical Faculty
      • Essen, Tyskland, 45147
        • Universitätsklinikum Essen
      • Frankfurt, Tyskland, 60590
        • Universitätsklinikum Johann Wolfgang Goethe- Universität Frankfurt Medizinische Klinik 1
      • Hanover, Tyskland, 30625
        • Medizinische Hochschule Hannover

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Beskrivelse

Inklusjonskriterier:

  • Medisinsk stabil basert på fysisk undersøkelse, sykehistorie, vitale tegn, elektrokardiogram (EKG) ved screening
  • Kronisk hepatitt B-virus (HBV) og hepatitt D-virus (HDV) samtidig infeksjon med dokumentasjon minst 6 måneder før screening
  • For del 1: hepatitt D RNA (HDV RNA) større enn eller lik (>=) 1000 internasjonale enheter per milliliter (IE/ml) ved screening. For del 2: må ha HDV RNA-verdier >= 500 IE/ml, og må ha hepatitt B overflateantigen (HBsAg) verdier mindre enn eller lik (
  • Alaninaminotransferase (ALT) høyere enn øvre normalgrense (ULN), men mindre enn 10 ganger (ULN)
  • Kroppsmasseindeks (BMI) mellom 18,0 og 35,0 kilogram per kvadratmeter kvadrat (kg/m^2), ekstremer inkludert
  • Svært effektive prevensjonstiltak på plass for kvinnelige deltakere i fertil alder eller mannlige deltakere med kvinnelige partnere i fertil alder
  • Ikke-cirrhotiske deltakere og deltakere med kompensert skrumplever (Child Pugh klasse A) ved screening (del 1) og deltakere må ha fravær av skrumplever og antall blodplater på >= 140 000 per desiliter (dL) for påmelding til del-2

Ekskluderingskriterier:

  • Bevis på infeksjon med hepatitt A-, C- eller E-virusinfeksjon eller bevis på human immunsvikt, virus type 1 (HIV-1) eller HIV-2-infeksjon ved screening
  • Anamnese eller bevis på kliniske tegn/symptomer på leverdekompensasjon inkludert, men ikke begrenset til: portal hypertensjon, ascites, hepatisk encefalopati, esophageal varices eller laboratorieavvik som indikerer redusert leverfunksjon som definert i protokollen
  • Bevis på leversykdom av ikke-HBV/HDV-etiologi
  • Tegn på hepatocellulært karsinom (HCC)
  • Betydelige laboratorieavvik som definert i protokollen ved screening
  • Deltakere med en historie med malignitet innen 5 år før screening
  • Unormal sinusrytme eller EKG-parametere ved screening som definert i protokollen
  • Anamnese med eller nåværende hjertearytmi eller historie eller kliniske bevis på signifikant eller ustabil hjertesykdom
  • Deltakere med en pågående eller tidligere sykdom som, etter etterforskerens og/eller sponsorens oppfatning, ikke vil være til beste for deltakeren
  • Anamnese med eller nåværende klinisk signifikant hudsykdom eller legemiddelutslett
  • Deltakere med kjente allergier, overfølsomhet eller intoleranse overfor JNJ-3989 eller dets hjelpestoffer eller hjelpestoffer av placeboinnholdet
  • Kontraindikasjoner for bruk av entecavir (ETV), tenofovirdisoproxil eller tenofoviralafenamid (TAF) i henhold til lokal forskrivningsinformasjon
  • Deltakere som har tatt noen terapier er ikke tillatt i henhold til protokollen
  • Kvinnelige deltakere som er gravide, eller ammer, eller planlegger å bli gravide mens de ble registrert i denne studien eller innen 90 dager etter siste dose av studieintervensjon
  • Mannlige deltakere som planlegger å få barn mens de er påmeldt
  • Deltakere som har hatt eller planlagt større kirurgi (eksempel som krever generell anestesi) eller som har fått en organtransplantasjon
  • Sårbare deltakere (eksempel, fengslede personer, personer under et rettslig beskyttelsestiltak)

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Dobbelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Umiddelbar aktiv behandlingsarm: JNJ-73763989 + NA
Deltakerne vil få JNJ-73763989 subkutan (SC) injeksjon hver 4. uke (Q4W) sammen med NA (entecavir [ETV], tenofovirdisoproxil eller tenofoviralafenamid [TAF]) en gang daglig i 144 uker i del 1 og i minst 96 uker i del 2.
Tenofovir disoproxil filmdrasjerte tablett vil bli administrert oralt.
JNJ-73763989 vil bli administrert som en SC-injeksjon.
Andre navn:
  • JNJ-3989
ETV monohydrat filmdrasjerte tabletter vil bli administrert oralt.
TAF filmdrasjert tablett vil bli administrert oralt.
Placebo komparator: Utsatt aktiv behandlingsarm: Placebo+NA+JNJ-73763989+NA
Deltakerne vil motta matchende placebo til JNJ-73763989 SC-injeksjon Q4W sammen med NA (ETV, tenofovirdisoproxil eller TAF) én gang daglig i 52 uker etterfulgt av JNJ-73763989 SC-injeksjon Q4W sammen med NA én gang daglig i 916 uker og i delvis minst 48 uker i del 2.
Tenofovir disoproxil filmdrasjerte tablett vil bli administrert oralt.
JNJ-73763989 vil bli administrert som en SC-injeksjon.
Andre navn:
  • JNJ-3989
ETV monohydrat filmdrasjerte tabletter vil bli administrert oralt.
TAF filmdrasjert tablett vil bli administrert oralt.
Matchende placebo til JNJ-73763989 vil bli administrert som en SC-injeksjon.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
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)
Tidsramme: 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)
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Etterforskere

  • Studieleder: Janssen Research & Development, LLC Clinical Trial, Janssen Research & Development, LLC

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

17. september 2020

Primær fullføring (Faktiske)

19. oktober 2023

Studiet fullført (Faktiske)

5. mars 2025

Datoer for studieregistrering

Først innsendt

28. august 2020

Først innsendt som oppfylte QC-kriteriene

1. september 2020

Først lagt ut (Faktiske)

2. september 2020

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

22. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

24. juni 2026

Sist bekreftet

1. juni 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • CR108868
  • 2020-001249-37 (EudraCT-nummer)
  • 73763989HPB2004 (Annen identifikator: Janssen Research & Development, LLC)
  • 2023-506763-33-00 (Registeridentifikator: EUCT number)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

JA

IPD-planbeskrivelse

Datadelingspolicyen til Janssen Pharmaceutical Companies of Johnson & Johnson er tilgjengelig på www.janssen.com/clinical-trials/transparency.

Som nevnt på dette nettstedet, kan forespørsler om tilgang til studiedata sendes inn via Yale Open Data Access (YODA) prosjektnettsted på yoda.yale.edu

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Ja

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .