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CompletedNCT04585789INSIGHTUpdated May 21, 2025Results posted

A Study to Assess Intrahepatic and Peripheral Changes of Immunologic and Virologic Markers in Chronic Hepatitis B Virus Infection

A Phase 2 interventional study of JNJ-73763989 and JNJ-56136379 in Hepatitis B, sponsored by Janssen Research & Development, LLC. Completed at 10 sites in 9 countries. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2025-05-21.

Sponsored by Janssen Research & Development, LLC · Phase 2, Interventional, and Other

Phase
Phase 2
Study type
Interventional
Enrollment
24
Allocation
Non-randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to assess changes in intrahepatic hepatitis B surface antigen (HBsAg) between baseline and on-treatment liver biopsy in response to JNJ-3989-based combination treatment.

Read the detailed description

The title of protocol reflects the original study design. The study design section is reflecting that the design as of protocol amendment 5 is non-randomized.

02

Conditions studied

03

In context

Hepatitis A

2,709 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.

This study's enrollment of 24 is below the median of 100 across 1,886 interventional studies indexed under Hepatitis A.

Browse Hepatitis A studies →

Lead sponsor

Janssen Research & Development, LLC is the lead sponsor of 912 studies on the registry; 76 are open to participants now.

Of its 278 completed or terminated interventional studies of FDA-regulated products, 131 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Medically stable on the basis of physical examination, medical history, vital signs, and triplicate 12-lead electrocardiogram (ECG) performed at screening
  • Hepatitis B virus (HBV) infection with documentation at least 6 months prior to screening: participants be either currently not treated with HBeAg positive status or virologically (nucleos[t]ide analog [NA]) suppressed with HBeAg negative status
  • Hepatitis B surface antigen (HBsAg) greater than (>) 100 International Units per Milliliter (IU/mL) at screening
  • Body mass index (BMI) between 18.0 and 35.0 kilogram per meter square (kg/m\^2), extremes included
  • Highly effective contraceptive measures in place for female participants of childbearing potential or male participants with female partners of childbearing potential
  • Fibroscan liver stiffness measurement less than and equal to (\<=) 9 Kilopascal (kPa) within 6 months prior to screening or at the time of screening

Exclusion criteria

Exclusion Criteria:

  • Evidence of infection with hepatitis A, C, D or E virus infection or evidence of human immunodeficiency, virus type 1 (HIV-1) or HIV-2 infection at screening
  • History or evidence of clinical signs/symptoms of hepatic decompensation including but not limited to: portal hypertension, ascites, hepatic encephalopathy, esophageal varices
  • History or signs of cirrhosis or portal hypertension, signs of hepatocellular carcinoma (HCC) or clinically relevant renal abnormalities on an abdominal ultrasound performed within 6 months prior to screening or at the time of screening
  • Presence of coagulopathy or bleeding disorder as indicated by: (a) International normalized ratio (INR) greater than or equal to (>=) 1.1* upper limit of normal (ULN); (b) Partial thromboplastin time >1.1*ULN; (c) Any signs of prolonged bleeding (>10 minutes)
  • Presence of hemoglobinopathy (including sickle cell disease, thalassemia)
  • Liver biopsy performed prior to screening that led to complications and that in the opinion of the investigator would prohibit another liver biopsy
05

Study design

Phase
Phase 2
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Panel 1: JNJ-73763989+ NA

    Ongoing and new participants will receive JNJ-73763989 subcutaneous (SC) injection once every 4 weeks (last injection at Week 44) and nucleos(t)ide analog (NA) treatment (either entecavir \[ETV\], tenofovir disoproxil or tenofovir alafenamide \[TAF\] tablets) once daily up to 48 weeks. Participants may receive optional treatment with pegylated interferon alpha-2a (PegIFN-alpha-2a) after the Week 40 for a duration of either 12 or 24 weeks at the investigator's discretion. As per amendment-5, JNJ-56136379 is no longer included as part of the study intervention and all participants are counted as single arm in each panel.

    Drug: JNJ-73763989 · Drug: JNJ-56136379 · Drug: Entecavir (ETV) · Drug: Tenofovir disoproxil · Drug: Tenofovir alafenamide (TAF) · Drug: PegIFN-alpha-2a (Optional)

  • Experimental
    Panel 2: JNJ-73763989+ NA

    Ongoing and new participants will receive JNJ-73763989 SC injection once every 4 weeks (last injection at Week 44) and NA treatment (ETV, tenofovir disoproxil or TAF tablets) once daily up to 48 weeks. Participants may receive optional treatment with PegIFN-alpha-2a after the Week 40 for a duration of either 12 or 24 weeks at the investigator's discretion. As per amendment-5, JNJ-56136379 is no longer included as part of the study intervention and all participants are counted as single arm in each panel.

    Drug: JNJ-73763989 · Drug: JNJ-56136379 · Drug: Entecavir (ETV) · Drug: Tenofovir disoproxil · Drug: Tenofovir alafenamide (TAF) · Drug: PegIFN-alpha-2a (Optional)

Interventions

  • DrugJNJ-73763989

    JNJ-73763989 will be administered subcutaneously once every 4 weeks up to Week 44.

  • DrugJNJ-56136379

    JNJ-56136379 tablets will be administered orally once daily up to 48 weeks.

  • DrugEntecavir (ETV)

    ETV tablet will be administered orally once daily up to 48 weeks as NA treatment.

  • DrugTenofovir disoproxil

    Tenofovir disoproxil will be administered orally once daily up to 48 weeks as NA treatment.

  • DrugTenofovir alafenamide (TAF)

    TAF will be administered orally once daily up to 48 weeks as NA treatment.

  • DrugPegIFN-alpha-2a (Optional)

    PegIFN-alpha-2a injection will be administered subcutaneously once weekly after Week 40 for either 12 or 24 weeks.

06

What researchers measure

Primary outcomes

  1. Panel 1 and 2: Absolute Change From Baseline in the Percentage of Hepatitis B Surface Antigen (HBsAg) Hepatocytes at Week 40

    Absolute change from baseline to on-treatment liver biopsy timepoint (Week 40) in terms of the percentage of HBsAg-positive hepatocytes (at Week 40) were reported.

    Time frame: Baseline, Week 40

  2. Panel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 12

    Liver concentrations of JNJ-73763989 (JNJ-73763976, JNJ-73763924 - Molecules of JNJ-73763989 and JNJ-87719164 \[M65; deaminated metabolite of JNJ-73763976\]) at Week 12 were reported.

    Time frame: At Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

  3. Panel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, and JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 40

    Liver concentrations of JNJ-73763989 (JNJ-73763976, and JNJ-73763924 and JNJ-87719164 \[M65; deaminated metabolite of JNJ-73763976\]) at Week 40 were reported.

    Time frame: At Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

  4. Panel 3: Plasma Concentration of JNJ-73763989 (JNJ-73763976, and JNJ-73763924) at Week 12

    Plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924-molecules of JNJ-73763989) at Week 12 were reported.

    Time frame: At Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

  5. Panel 3: Plasma Concentrations of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) at Week 40

    Plasma concentrations of JNJ-73763989 (JNJ-73763976 and JNJ-73763924-molecules of JNJ-73763989) at Week 40 were reported.

    Time frame: At Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

  6. Panel 3: Correlation of Liver Concentration to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 12

    Correlation of liver concentration to plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and liver concentration of JNJ-87719164 (M65: Deaminated metabolite of JNJ-73763976) to liver concentration JNJ-73763976 at Week 12 were reported.

    Time frame: Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

  7. Panel 3: Correlation of Liver to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 40

    Correlation of liver concentration to plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and liver concentration of JNJ-87719164 (M65: Deaminated metabolite of JNJ-73763976) to liver concentration JNJ-73763976 at Week 40 were reported.

    Time frame: Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)

Secondary outcomes

  1. Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 2 at Follow-up Week 48

    Percentage of participants with sustained (reduction) serum HBsAg response per Definition 2 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 2 was defined as: for participants with a \>1 log decline in HBsAg from baseline at last follow up visit: Among the most recent three visits, the difference between log HBsAg at 2 of 3 last visit and 1 of 3 last visit is \<0.2, and the difference between log HBsAg at 3 of 3 last visit and 1 of 3 last visit is \<0.2.

    Time frame: Follow-up Week 48

  2. Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroclearance

    Percentage of Participants who achieved HBsAg Seroclearance were reported. HBsAg seroclearance was defined as quantitative HBsAg \<LLOQ (\<0.05 IU/mL).

    Time frame: Follow-up Week 48

  3. Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroclearance

    Percentage of Participants who achieved HBeAg Seroclearance were reported. HBeAg seroclearance was defined as (quantitative\] HBeAg \<LLOQ (\<0.11 IU/mL); with HBeAg positive status at baseline and became HBeAg negative post-baseline.

    Time frame: Follow-up Week 48

  4. Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Hepatitis B Core Antigen Positive (HBcAg+) Hepatocytes at Week 40

    Change from baseline in percentage of intrahepatic viral parameter: HBcAg positive hepatocytes at Week 40 were reported. The percentage of HBcAg positive hepatocytes were derived as number of HBcAg positive hepatocytes\*100 per total number of evaluated hepatocytes.

    Time frame: Baseline, Week 40

  5. Panel 1,and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Covalently Closed Circular Deoxyribonucleic Acid Positive (cccDNA+) Hepatocytes at Week 40

    Change from baseline in percentage of intrahepatic viral parameter: cccDNA positive hepatocytes were reported. The percentage of cccDNA-positive hepatocytes, were derived as number of cccDNA positive hepatocytes\*100 per total number of evaluated hepatocytes.

    Time frame: Baseline, Week 40

  6. Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: HBsAg Positive (HBsAg+) Hepatocytes at Week 40

    Change from baseline in percentage of intrahepatic viral parameter: HBsAg positive hepatocytes at Week 40 were reported. The percentage of HBsAg positive hepatocytes were derived as number of HBsAg positive hepatocytes \* 100 per total number of evaluated hepatocytes.

    Time frame: Baseline, Week 40

  7. Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Pre-genomic Ribonucleic Acid Positive (pgRNA+) Hepatocytes at Week 40

    Change from baseline in percentage of intrahepatic viral Parameter: pgRNA positive hepatocytes at Week 40 were reported. The percentage of pgRNA-positive hepatocytes, were derived as number of pgRNA positive hepatocytes\*100 per total number of evaluated hepatocytes.

    Time frame: Baseline, Week 40

  8. Panel 1 and 2: Change From Baseline in Transcriptional Activity (Ratio of pg RNA/cccDNA) at Week 40

    Change from baseline in transcriptional activity (ratio of pgRNA/cccDNA) at Week 40 were reported.

    Time frame: Baseline, Week 40

  9. Panel 1, 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Silent Infected Hepatocytes at Week 40

    Change from baseline in percentage of intrahepatic viral parameter: silent infected hepatocytes (that is infected hepatocytes without HBV transcription; cccDNA-positive/HBV RNA-negative hepatocytes) at Week 40 were reported. The percentage of silent infected hepatocytes (SIH), were derived as number of silent infected hepatocytes\*100 per total number of evaluated hepatocytes.

    Time frame: Baseline, Week 40

  10. Panel 1, 2 and 3: Percentage of Participants With HBsAg Seroclearance at Week 72 Without Restarting Nucleos(t)Ide Analog (NA) Treatment

    Percentage of participants with HBsAg seroclearance (defined as HBsAg \< LLOQ: 0.05 IU/mL) at Week 72 without restarting NA treatment were reported.

    Time frame: At Week 72 (24 weeks after completion of all study drugs at Week 48)

  11. Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 1 at Follow-up Week 48

    Percentage of participants with sustained (reduction) serum HBsAg response per Definition 1 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 1 was defined as: for participants with data for last follow-up visit (Follow-up Week 48 for participants who did not receive PegIFN-alpha2a or received PegIFN-alpha2a and did not meet NA completion criteria, and last Follow-up visit for participants who received PegIFN-alpha2a and stopped NA during Follow-up): participants who had a \>1 log decline in HBsAg response at last scheduled follow-up visit and had an HBsAg \<1000 IU/mL at last scheduled follow-up visit, or for participants without data at last follow-up visit: HBsAg values had a \>2 log decline at second most recent visit or \>1.5 log decline at latest visit (most recent value used) compared to baseline and had an HBsAg \<1000 IU/mL at last available timepoint.

    Time frame: Follow-up Week 48

  12. Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 3 at Follow-up Week 48

    Percentage of participants with sustained (reduction) serum HBsAg response per Definition 3 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 3 for participants with a \>1 log decline in HBsAg from baseline at last follow up visit: Among the most recent three visits, the difference between log HBsAg at 2 of 3 last visit and 1 of 3 last visit is \<0.2, and the difference between log HBsAg at 3 of 3 last visit and 1 of 3 last visit is \<0.2 and have an HBsAg \<1000 IU/mL at the last available timepoint.

    Time frame: From follow-up Week 24 up to follow-up Week 48

  13. Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 4 at Follow-up Week 48

    Percentage of participants with sustained (reduction) serum HBsAg response per definition 4 follow-up Week 48 were reported. Sustained serum HBsAg response per definition 4 were classified into 3 categories with respect to the difference between HBsAg level at the last Follow-up timepoint and end of treatment: Increase: \>+0.2 log10 IU/mL , stable: within plus or minus (+/-) 0.2 log10 IU/mL, and decrease: \>-0.2 log10 IU/mL.

    Time frame: Follow-up Week 48

  14. Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroconversion

    Seroconversion of HBsAg was defined as having achieved HBsAg seroclearance (defined as quantitative HBsAg \<LLOQ \[\<0.05 IU/mL\]) and appearance of anti-HBs antibodies (defined as a baseline anti-HBs antibodies \[quantitative\] \<LLOQ \[\<5 milli-international units per milliliter {mIU/mL}\] and a post-baseline assessment \>=LLOQ \[\>=5 mIU/mL\]).

    Time frame: From baseline (Day 1) up to follow-up Week 48

  15. Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroconversion

    Percentage of participants who achieved HBeAg seroconversion were reported. Seroconversion of HBeAg was defined as having achieved HBeAg seroclearance (defined as \[quantitative\] HBeAg \<LLOQ \[\<0.11 IU/mL\]; with HBeAg positive status at baseline and became HBeAg negative post-baseline) together with appearance of anti-HBe antibodies (defined as a baseline anti-HBe antibodies \[qualitative\] with a "negative" result and a post-baseline assessment with "positive" result).

    Time frame: From baseline (Day 1) up to follow-up Week 48

  16. Panel 1, 2 and 3: Percentage of Participants With Off-treatment Virologic Flares Per Derivation 1

    Virologic flare (VF) per derivation 1 was defined only for participants who were off-treatment (period after stopping all study drugs, including NA) and who had HBV DNA\<LLOQ (\<20 IU/mL) at last observed point on-treatment \[OT\]); start date of confirmed VF was first date of 2 consecutive visits with HBV DNA \>200 IU/mL. End date of same confirmed VF was first date when HBV DNA value returns to \<=200 IU/mL or date of NA restart, whichever comes first. Each virologic flare were categorized based on confirmed (that is, 2 consecutive values) peak HBV DNA above any of 3 thresholds within the start and end date of that flare as followed: 20,000 IU/mL, 2,000 IU/mL, and 200 IU/mL. Participants were counted only once for any given flare, regardless of the number of times they actually experienced the flare.

    Time frame: From baseline (Day 1) up to follow-up Week 48

  17. Panel 1, 2 and 3: Percentage of Participants With Off-treatment and On-treatment Biochemical Flares

    Off-treatment (time period after stopping all study drugs \[including NA\]) biochemical flare was defined as first date of 2 consecutive visits with ALT and/or AST \>=3\*ULN and \>=3\*nadir (lowest value observed up to start of flare) while participant received no study drugs. End date of same off-treatment biochemical flare was defined as first date with 50 percentage (%) reduction from peak ALT and/or AST level \& \<3\*ULN. On-treatment (time period during which the participant received any of study drugs) biochemical flare was defined as first date of 2 consecutive visits with ALT and/or AST \>=3\*ULN and \>=3\*nadir (lowest value observed up to start of flare) while participant was on-treatment. End date of same on-treatment biochemical flare was defined as first date with a 50% reduction from the peak ALT and/or AST level and \<3\*ULN, regardless of stopping study drugs. Participants were counted only once for any given flare, regardless of the number of times they actually experienced flare.

    Time frame: From baseline (Day 1) up to follow-up Week 48

  18. Panel 1, 2 and 3: Percentage of Participants With Off-treatment Clinical Flares

    Percentage of participants with off-treatment clinical flares were reported. Clinical flares occurred either when a virologic flare and biochemical flare overlapped in time or when a biochemical flare started within 4 weeks following the end of a virologic flare. Off-treatment was defined as the time period after stopping all study drugs (including NA). The start date of a clinical flare was the minimum start date of the virologic flare and biochemical flare. The end date of a clinical flare was the maximum end date of the virologic flare and biochemical flare, that is, the later date between HBV DNA returned to \<=200 IU/mL (or \<=1 log10) and 50 %reduction from the peak ALT and/or AST level and \<3\*ULN reached during the biochemical flare. Participants were counted only once for any given flare, regardless of the number of times they actually experienced the flare.

    Time frame: From baseline (Day 1) up to follow-up Week 48

  19. Panel 1, 2 and 3: Time to First Occurence of HBsAg Seroclearance

    Time to first occurrence of HBsAg seroclearance (defined as quantitative HBsAg \<LLOQ \[\<0.05 IU/mL\]) were reported. Time to first occurrence of HBsAg seroclearance was defined as the number of days between the date of first study intervention intake and the date of the first occurrence of the HBsAg seroclearance. Participants who withdrew early from the study before achieving HBsAg seroclearance or who did not achieve HBsAg seroclearance were censored at the last available HBsAg assessment. Kaplan-Meier method was used for the estimation.

    Time frame: From baseline (Day 1) up to follow-up Week 48

  20. Panel 1, 2 and 3: Percentage of Participants With Virologic Breakthrough

    Percentage of participants with virologic breakthrough on treatment were reported. Virological breakthrough was defined as having a confirmed on-treatment HBV DNA increase by \>1 log10 IU/mL from nadir level (lowest level reached during treatment) in participants who did not have on-treatment HBV DNA level \< LLOQ (\<20 IU/mL) or confirmed on-treatment HBV DNA level \>200 IU/mL in participants who had on-treatment HBV DNA level \<LLOQ (\<20 IU/mL) of the HBV DNA assay. Confirmed HBV DNA increase/level means that the criterion should be fulfilled at 2 or more consecutive time points or at the last observed on-treatment time point. On treatment was defined as the time period in which the participant received any of the study interventions (JNJ-3989 and/or JNJ 6379 and/or NA and/or PegIFN-alpha2a).

    Time frame: From baseline (Day 1) up to follow-up Week 48

  21. Panel 1, 2 and 3: Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

    Percentage of participants with TEAES (including serious and non-serious) and TESAEs were reported. An AE was any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. Any AE occurring at or after the initial administration of study intervention was considered to be treatment emergent. A 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.

    Time frame: Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48

  22. Panel 1, 2 and 3: Number of Participants With HBV-Specific Peripheral Blood T-cell Responses

    Number of participants with HBV-specific peripheral blood T-cell responses were reported. HBV-specific T-cells were characterized in peripheral blood mononuclear cell immune analysis by binding assays (multimer staining) combined with downstream T-cell responses and transcriptome profiling.

    Time frame: Open-label: Weeks 40, 44, and 48; Follow-up Phase: Follow-up Weeks 2, 12 and 24

  23. Panel 1, 2 and 3: Percentage of Participants With Worst (Grade 3 and 4) Treatment-emergent Division of Acquired Immunodeficiency Syndrome (DAIDS) Toxicity Grade in Clinical Laboratory Tests

    Clinical laboratory test parameters were Hematology : absolute neutrophil count (ANC); Chemistry : alanine aminotransferase (ALT) and serum glutamic pyruvic transaminase (SGPT), aspartate aminotransferase(AST) or serum glutamic oxaloacetic transaminase (SGOT), amylase (pancreatic and total), creatinine Kinase, creatinine, low-density lipoprotein (LDL), lipase, estimated glomerular filtration rate (eGFR) on serum creatinine (Cr). DAIDS toxicity grades were Grade 1 (Mild), Grade 2 (Moderate), Grade 3 (Severe), Grade 4 (Potentially Life-Threatening). Percentage of participants with treatment-emergent DAIDS toxicity Grade 3 or 4 were reported in this outcome measure. For toxicity grades, treatment-emergent was concluded if the postbaseline grade was worse than the baseline grade. Only those abnormality categories in which at least one participant had data were reported.

    Time frame: Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48

  24. Panel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High)Treatment-emergent DAIDS Toxicity Grade in Electrocardiogram (ECG)

    ECG parameters included ECG mean heart rate (HR)(beats per minute\[bpm\]), Pulse rate (PR) interval (milliseconds \[ms\]), QRS duration (ms) and QTc Corrected (Fridericia's formula QTcF). Abnormalities were graded as follows: ECG mean heart rate (abnormally low HR \<45 bpm) and (abnormally high HR\>=120 bpm); PR interval (abnormally high \>220 ms) and QPRS (abnormally high \>=120 ms); OT interval corrected for heart rate according to Fridericia (QTcF); borderline prolonged (BRD Pr )QTc (\>=450 to \<=480 ms), prolonged QTc (\>=480 to \<=500 ms)and pathologically prolonged QTc (\>500 ms). For worst abnormality, treatment-emergent was concluded if the abnormality worsened as compared to the abnormality at baseline: abnormally high to abnormally low and vice-versa. Only those abnormality categories in which at least one participant had data were reported.

    Time frame: Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48

  25. Panel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High) Treatment-emergent DAIDS Toxicity Grade in Vital Signs

    Percentage of participants with worst treatment-emergent DAIDS toxicity grade in vital signs were reported. Abnormality grades were: pulse rate (abnormally low \<=45 bpm) and (abnormally high \>=120 bpm). An assessment was treatment-emergent if abnormality worsened as compared to the abnormality at baseline: from abnormally high to abnormally low and vice-versa. Only the category (pulse rate) in which at least one participant had data were reported.

    Time frame: Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48

  26. Panel 1, 2 and 3: Number of Participants With Clinically Significant Treatment-emergent Abnormalities in Physical Examination

    Number of participants with clinically significant treatment-emergent abnormalities in physical examination were reported. Physical examination included head/neck/thyroid, eyes/ears/nose/throat, respiratory, cardiovascular, lymph nodes, abdomen, skin, musculoskeletal, and neurological examinations.

    Time frame: Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48

  27. Panel 2 and 3: Plasma Trough Concentration (C[0hour]) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Plasma trough concentration (C\[0hour\]) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. C0h was the pre-dose plasma concentration of the JNJ-73763989 (JNJ-73763976, JNJ-73763924). Non-compartmental analysis were conducted to analyze plasma concentration of JNJ-73763989 and its molecules.

    Time frame: Week 4 : Pre-dose on Day 29

  28. Panel 2: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Maximum observed plasma concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmax JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose

  29. Panel 3: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Maximum observed plasma concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmax JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose

  30. Panel 2 and 3: Minimum Observed Plasma Concentration (Cmin) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Minimum observed plasma concentration (Cmin) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmin of JNJ-73763989 and its molecules

    Time frame: Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose

  31. Panel 2: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976,JNJ-73763924)

    Time to reach the maximum observed plasma concentration (tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze tmax of JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Post dose (15 minutes, 30 minutes, 1, 2, 3, 4, 6, and 24 hours)

  32. Panel 3:Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Time to reach the maximum observed plasma concentration (tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze tmax of JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Post dose (15 minutes, 30 minutes, 1, 2, 3, 4, 6, and 24 hours)

  33. Panel 2: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Area under the plasma concentration-time curve from time zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze AUC0 to 24h of JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose

  34. Panel 3: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

    Area under the plasma concentration-time curve from time zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze AUC0 to 24h of JNJ-73763989 and its molecules.

    Time frame: Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose

07

Results

Posted Mar 5, 2024

Participant flow

Study consisted of 3 Panels (1, 2 and 3). Panel 1: participants with hepatitis B (HB) e antigen (HBeAg) positive and not treated. Panel 2: participants with HBeAg negative and virologically suppressed by entecavir (ETV), tenofovir disoproxil (TD), or tenofovir alafenamide (TAF) treatment. Panel 3: participants with HBeAg positive or negative who were either not treated or virologically suppressed by ETV or TD treatment.

OL Phase: Week 1 to Week 48
Participant flow — OL Phase: Week 1 to Week 48
MilestonePanel 1Panel 2Panel 3
Started10104
Completed10104
Not completed000
FU Phase: Week 48 to Week 96
Participant flow — FU Phase: Week 48 to Week 96
MilestonePanel 1Panel 2Panel 3
Started10104
Completed8104
Not completed200
Withdrew: Lost to follow-up100
Withdrew: Withdrawal by subject100

Outcome measures

PrimaryPanel 1 and 2: Absolute Change From Baseline in the Percentage of Hepatitis B Surface Antigen (HBsAg) Hepatocytes at Week 40

Absolute change from baseline to on-treatment liver biopsy timepoint (Week 40) in terms of the percentage of HBsAg-positive hepatocytes (at Week 40) were reported.

Time frame:
Baseline, Week 40
Reported as:
Mean · percentage of HBsAg hepatocytes
Panel 1 and 2: Absolute Change From Baseline in the Percentage of Hepatitis B Surface Antigen (HBsAg) Hepatocytes at Week 40
percentage of HBsAg hepatocytesPanel 1Panel 2
Panel 1 and 2: Absolute Change From Baseline in the Percentage of Hepatitis B Surface Antigen (HBsAg) Hepatocytes at Week 40-78.46 (-94.078 to -42.936)-5.68 (-15.846 to -0.885)
PrimaryPanel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 12

Liver concentrations of JNJ-73763989 (JNJ-73763976, JNJ-73763924 - Molecules of JNJ-73763989 and JNJ-87719164 \[M65; deaminated metabolite of JNJ-73763976\]) at Week 12 were reported.

Time frame:
At Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · nanograms per gram (ng/g)
Panel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 12
nanograms per gram (ng/g)Panel 3
JNJ-737639763550.00 ± 1674.714
JNJ-7376392487300.00 ± 31712.668
M6566175.00 ± 26000.817
PrimaryPanel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, and JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 40

Liver concentrations of JNJ-73763989 (JNJ-73763976, and JNJ-73763924 and JNJ-87719164 \[M65; deaminated metabolite of JNJ-73763976\]) at Week 40 were reported.

Time frame:
At Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · ng/g
Panel 3: Liver Concentrations of JNJ-73763989 (JNJ-73763976, and JNJ-73763924 and JNJ-87719164 [M65; Deaminated Metabolite of JNJ-73763976]) at Week 40
ng/gPanel 3
JNJ-737639765883.33 ± 2147.145
JNJ-73763924208666.67 ± 66860.551
M65133800.00 ± 50615.413
PrimaryPanel 3: Plasma Concentration of JNJ-73763989 (JNJ-73763976, and JNJ-73763924) at Week 12

Plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924-molecules of JNJ-73763989) at Week 12 were reported.

Time frame:
At Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · nanograms per milliliters (ng/mL)
Panel 3: Plasma Concentration of JNJ-73763989 (JNJ-73763976, and JNJ-73763924) at Week 12
nanograms per milliliters (ng/mL)Panel 3
JNJ-73763976254.70 ± 123.841
JNJ-7376392436.18 ± 22.667
PrimaryPanel 3: Plasma Concentrations of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) at Week 40

Plasma concentrations of JNJ-73763989 (JNJ-73763976 and JNJ-73763924-molecules of JNJ-73763989) at Week 40 were reported.

Time frame:
At Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · ng/mL
Panel 3: Plasma Concentrations of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) at Week 40
ng/mLPanel 3
JNJ-73763976530.97 ± 176.408
JNJ-7376392474.87 ± 12.788
PrimaryPanel 3: Correlation of Liver Concentration to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 12

Correlation of liver concentration to plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and liver concentration of JNJ-87719164 (M65: Deaminated metabolite of JNJ-73763976) to liver concentration JNJ-73763976 at Week 12 were reported.

Time frame:
Week 12 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · ratio
Panel 3: Correlation of Liver Concentration to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 12
ratioPanel 3
JNJ-73763976 (liver to plasma concentration)14.51 ± 4.725
JNJ-73763924 (liver to plasma concentration)2844.26 ± 1265.202
M65 to JNJ-73763976 (liver to liver concentration)19.47 ± 3.267
PrimaryPanel 3: Correlation of Liver to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 40

Correlation of liver concentration to plasma concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and liver concentration of JNJ-87719164 (M65: Deaminated metabolite of JNJ-73763976) to liver concentration JNJ-73763976 at Week 40 were reported.

Time frame:
Week 40 (at the time of liver biopsy: 24 hours post dose of JNJ-73763989)
Reported as:
Mean · ratio
Panel 3: Correlation of Liver to Plasma Concentration of JNJ-73763989 (JNJ-73763976 and JNJ-73763924) and Liver Concentration of JNJ-87719164 (M65: Deaminated Metabolite of JNJ-73763976) to Liver Concentration JNJ-73763976 at Week 40
ratioPanel 3
JNJ-73763976 (liver to plasma concentration)12.67 ± 7.269
JNJ-73763924 (liver to plasma concentration)2847.66 ± 1034.033
M65 to JNJ-73763976 (liver to liver concentration)22.65 ± 1.407
SecondaryPanel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 2 at Follow-up Week 48

Percentage of participants with sustained (reduction) serum HBsAg response per Definition 2 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 2 was defined as: for participants with a \>1 log decline in HBsAg from baseline at last follow up visit: Among the most recent three visits, the difference between log HBsAg at 2 of 3 last visit and 1 of 3 last visit is \<0.2, and the difference between log HBsAg at 3 of 3 last visit and 1 of 3 last visit is \<0.2.

Time frame:
Follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 2 at Follow-up Week 48
Percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 2 at Follow-up Week 4850.0 (23.97 to 76.03)42.9 (16.96 to 72.14)50.0 (5.13 to 94.87)
SecondaryPanel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroclearance

Percentage of Participants who achieved HBsAg Seroclearance were reported. HBsAg seroclearance was defined as quantitative HBsAg \<LLOQ (\<0.05 IU/mL).

Time frame:
Follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroclearance
percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroclearance25.020.00
SecondaryPanel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroclearance

Percentage of Participants who achieved HBeAg Seroclearance were reported. HBeAg seroclearance was defined as (quantitative\] HBeAg \<LLOQ (\<0.11 IU/mL); with HBeAg positive status at baseline and became HBeAg negative post-baseline.

Time frame:
Follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroclearance
percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroclearance37.5—50.0
SecondaryPanel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Hepatitis B Core Antigen Positive (HBcAg+) Hepatocytes at Week 40

Change from baseline in percentage of intrahepatic viral parameter: HBcAg positive hepatocytes at Week 40 were reported. The percentage of HBcAg positive hepatocytes were derived as number of HBcAg positive hepatocytes\*100 per total number of evaluated hepatocytes.

Time frame:
Baseline, Week 40
Reported as:
Median · percent change in HBcAg+ Hepatocytes
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Hepatitis B Core Antigen Positive (HBcAg+) Hepatocytes at Week 40
percent change in HBcAg+ HepatocytesPanel 1Panel 2
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Hepatitis B Core Antigen Positive (HBcAg+) Hepatocytes at Week 40-54.49 (-87.02 to -42.26)0.03 (0.00 to 0.04)
SecondaryPanel 1,and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Covalently Closed Circular Deoxyribonucleic Acid Positive (cccDNA+) Hepatocytes at Week 40

Change from baseline in percentage of intrahepatic viral parameter: cccDNA positive hepatocytes were reported. The percentage of cccDNA-positive hepatocytes, were derived as number of cccDNA positive hepatocytes\*100 per total number of evaluated hepatocytes.

Time frame:
Baseline, Week 40
Reported as:
Median · percent change in cccDNA+ hepatocytes
Panel 1,and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Covalently Closed Circular Deoxyribonucleic Acid Positive (cccDNA+) Hepatocytes at Week 40
percent change in cccDNA+ hepatocytesPanel 1Panel 2
Panel 1,and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Covalently Closed Circular Deoxyribonucleic Acid Positive (cccDNA+) Hepatocytes at Week 40-4.50 (-40.88 to 12.97)-2.40 (-22.84 to 7.57)
SecondaryPanel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: HBsAg Positive (HBsAg+) Hepatocytes at Week 40

Change from baseline in percentage of intrahepatic viral parameter: HBsAg positive hepatocytes at Week 40 were reported. The percentage of HBsAg positive hepatocytes were derived as number of HBsAg positive hepatocytes \* 100 per total number of evaluated hepatocytes.

Time frame:
Baseline, Week 40
Reported as:
Median · percent change in HBsAg+ hepatocytes
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: HBsAg Positive (HBsAg+) Hepatocytes at Week 40
percent change in HBsAg+ hepatocytesPanel 1Panel 2
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: HBsAg Positive (HBsAg+) Hepatocytes at Week 40-92.38 (-95.65 to -73.37)-14.19 (-21.11 to -7.01)
SecondaryPanel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Pre-genomic Ribonucleic Acid Positive (pgRNA+) Hepatocytes at Week 40

Change from baseline in percentage of intrahepatic viral Parameter: pgRNA positive hepatocytes at Week 40 were reported. The percentage of pgRNA-positive hepatocytes, were derived as number of pgRNA positive hepatocytes\*100 per total number of evaluated hepatocytes.

Time frame:
Baseline, Week 40
Reported as:
Median · percent change in pgRNA+ hepatocytes
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Pre-genomic Ribonucleic Acid Positive (pgRNA+) Hepatocytes at Week 40
percent change in pgRNA+ hepatocytesPanel 1Panel 2
Panel 1 and 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Pre-genomic Ribonucleic Acid Positive (pgRNA+) Hepatocytes at Week 40-81.23 (-86.19 to -74.14)-6.74 (-15.81 to -2.01)
SecondaryPanel 1 and 2: Change From Baseline in Transcriptional Activity (Ratio of pg RNA/cccDNA) at Week 40

Change from baseline in transcriptional activity (ratio of pgRNA/cccDNA) at Week 40 were reported.

Time frame:
Baseline, Week 40
Reported as:
Median · ratio
Panel 1 and 2: Change From Baseline in Transcriptional Activity (Ratio of pg RNA/cccDNA) at Week 40
ratioPanel 1Panel 2
Panel 1 and 2: Change From Baseline in Transcriptional Activity (Ratio of pg RNA/cccDNA) at Week 4050.00 (49.07 to 58.83)8.86 (-3.03 to 27.45)
SecondaryPanel 1, 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Silent Infected Hepatocytes at Week 40

Change from baseline in percentage of intrahepatic viral parameter: silent infected hepatocytes (that is infected hepatocytes without HBV transcription; cccDNA-positive/HBV RNA-negative hepatocytes) at Week 40 were reported. The percentage of silent infected hepatocytes (SIH), were derived as number of silent infected hepatocytes\*100 per total number of evaluated hepatocytes.

Time frame:
Baseline, Week 40
Reported as:
Median · percent change in SIH
Panel 1, 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Silent Infected Hepatocytes at Week 40
percent change in SIHPanel 1Panel 2
Panel 1, 2: Change From Baseline in Percentage of Intrahepatic Viral Parameter: Silent Infected Hepatocytes at Week 4025.06 (21.40 to 31.63)2.88 (-14.74 to 8.80)
SecondaryPanel 1, 2 and 3: Percentage of Participants With HBsAg Seroclearance at Week 72 Without Restarting Nucleos(t)Ide Analog (NA) Treatment

Percentage of participants with HBsAg seroclearance (defined as HBsAg \< LLOQ: 0.05 IU/mL) at Week 72 without restarting NA treatment were reported.

Time frame:
At Week 72 (24 weeks after completion of all study drugs at Week 48)
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants With HBsAg Seroclearance at Week 72 Without Restarting Nucleos(t)Ide Analog (NA) Treatment
Percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants With HBsAg Seroclearance at Week 72 Without Restarting Nucleos(t)Ide Analog (NA) Treatment010
SecondaryPanel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 1 at Follow-up Week 48

Percentage of participants with sustained (reduction) serum HBsAg response per Definition 1 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 1 was defined as: for participants with data for last follow-up visit (Follow-up Week 48 for participants who did not receive PegIFN-alpha2a or received PegIFN-alpha2a and did not meet NA completion criteria, and last Follow-up visit for participants who received PegIFN-alpha2a and stopped NA during Follow-up): participants who had a \>1 log decline in HBsAg response at last scheduled follow-up visit and had an HBsAg \<1000 IU/mL at last scheduled follow-up visit, or for participants without data at last follow-up visit: HBsAg values had a \>2 log decline at second most recent visit or \>1.5 log decline at latest visit (most recent value used) compared to baseline and had an HBsAg \<1000 IU/mL at last available timepoint.

Time frame:
Follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 1 at Follow-up Week 48
Percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 1 at Follow-up Week 4850.0 (26.73 to 73.27)70.0 (44.83 to 88.42)50.0 (14.26 to 85.74)
SecondaryPanel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 3 at Follow-up Week 48

Percentage of participants with sustained (reduction) serum HBsAg response per Definition 3 at follow-up Week 48 were reported. Sustained serum HBsAg response per definition 3 for participants with a \>1 log decline in HBsAg from baseline at last follow up visit: Among the most recent three visits, the difference between log HBsAg at 2 of 3 last visit and 1 of 3 last visit is \<0.2, and the difference between log HBsAg at 3 of 3 last visit and 1 of 3 last visit is \<0.2 and have an HBsAg \<1000 IU/mL at the last available timepoint.

Time frame:
From follow-up Week 24 up to follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 3 at Follow-up Week 48
Percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 3 at Follow-up Week 4825.0 (6.86 to 53.82)42.9 (16.96 to 72.14)50.0 (5.13 to 94.87)
SecondaryPanel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 4 at Follow-up Week 48

Percentage of participants with sustained (reduction) serum HBsAg response per definition 4 follow-up Week 48 were reported. Sustained serum HBsAg response per definition 4 were classified into 3 categories with respect to the difference between HBsAg level at the last Follow-up timepoint and end of treatment: Increase: \>+0.2 log10 IU/mL , stable: within plus or minus (+/-) 0.2 log10 IU/mL, and decrease: \>-0.2 log10 IU/mL.

Time frame:
Follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Sustained (Reduction) Serum HBsAg Response Per Definition 4 at Follow-up Week 48
Percentage of participantsFU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Stable: Within +/-0.2 log1011.100
Decrease: > -0.2 log10 IU/mL22.230.025.0
Increase: > +0.2 log10 IU/mL66.770.075.0
SecondaryPanel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroconversion

Seroconversion of HBsAg was defined as having achieved HBsAg seroclearance (defined as quantitative HBsAg \<LLOQ \[\<0.05 IU/mL\]) and appearance of anti-HBs antibodies (defined as a baseline anti-HBs antibodies \[quantitative\] \<LLOQ \[\<5 milli-international units per milliliter {mIU/mL}\] and a post-baseline assessment \>=LLOQ \[\>=5 mIU/mL\]).

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroconversion
Percentage of participantsPanel 1Panel 2Panel 3
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBsAg Seroconversion28.611.10
SecondaryPanel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroconversion

Percentage of participants who achieved HBeAg seroconversion were reported. Seroconversion of HBeAg was defined as having achieved HBeAg seroclearance (defined as \[quantitative\] HBeAg \<LLOQ \[\<0.11 IU/mL\]; with HBeAg positive status at baseline and became HBeAg negative post-baseline) together with appearance of anti-HBe antibodies (defined as a baseline anti-HBe antibodies \[qualitative\] with a "negative" result and a post-baseline assessment with "positive" result).

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · Percentage of participants
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroconversion
Percentage of participantsPanel 1Panel 2Panel 3
Panel 1, 2 and 3: Percentage of Participants Who Achieved HBeAg Seroconversion28.6—50.0
SecondaryPanel 1, 2 and 3: Percentage of Participants With Off-treatment Virologic Flares Per Derivation 1

Virologic flare (VF) per derivation 1 was defined only for participants who were off-treatment (period after stopping all study drugs, including NA) and who had HBV DNA\<LLOQ (\<20 IU/mL) at last observed point on-treatment \[OT\]); start date of confirmed VF was first date of 2 consecutive visits with HBV DNA \>200 IU/mL. End date of same confirmed VF was first date when HBV DNA value returns to \<=200 IU/mL or date of NA restart, whichever comes first. Each virologic flare were categorized based on confirmed (that is, 2 consecutive values) peak HBV DNA above any of 3 thresholds within the start and end date of that flare as followed: 20,000 IU/mL, 2,000 IU/mL, and 200 IU/mL. Participants were counted only once for any given flare, regardless of the number of times they actually experienced the flare.

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Off-treatment Virologic Flares Per Derivation 1
percentage of participantsPanel 1Panel 2Panel 3
HBV DNA > 200 IU/mL—00
HBV DNA > 2,000 IU/mL—33.30
HBV DNA > 20,000 IU/mL—050.0
SecondaryPanel 1, 2 and 3: Percentage of Participants With Off-treatment and On-treatment Biochemical Flares

Off-treatment (time period after stopping all study drugs \[including NA\]) biochemical flare was defined as first date of 2 consecutive visits with ALT and/or AST \>=3\*ULN and \>=3\*nadir (lowest value observed up to start of flare) while participant received no study drugs. End date of same off-treatment biochemical flare was defined as first date with 50 percentage (%) reduction from peak ALT and/or AST level \& \<3\*ULN. On-treatment (time period during which the participant received any of study drugs) biochemical flare was defined as first date of 2 consecutive visits with ALT and/or AST \>=3\*ULN and \>=3\*nadir (lowest value observed up to start of flare) while participant was on-treatment. End date of same on-treatment biochemical flare was defined as first date with a 50% reduction from the peak ALT and/or AST level and \<3\*ULN, regardless of stopping study drugs. Participants were counted only once for any given flare, regardless of the number of times they actually experienced flare.

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Off-treatment and On-treatment Biochemical Flares
percentage of participantsPanel 1Panel 2Panel 3
Off-treatment biochemical flare—00
On-treatment biochemical flare10.010.025.0
SecondaryPanel 1, 2 and 3: Percentage of Participants With Off-treatment Clinical Flares

Percentage of participants with off-treatment clinical flares were reported. Clinical flares occurred either when a virologic flare and biochemical flare overlapped in time or when a biochemical flare started within 4 weeks following the end of a virologic flare. Off-treatment was defined as the time period after stopping all study drugs (including NA). The start date of a clinical flare was the minimum start date of the virologic flare and biochemical flare. The end date of a clinical flare was the maximum end date of the virologic flare and biochemical flare, that is, the later date between HBV DNA returned to \<=200 IU/mL (or \<=1 log10) and 50 %reduction from the peak ALT and/or AST level and \<3\*ULN reached during the biochemical flare. Participants were counted only once for any given flare, regardless of the number of times they actually experienced the flare.

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Off-treatment Clinical Flares
percentage of participantsPanel 1Panel 2Panel 3
HBV DNA >200 IU/mL—00
HBV DNA >2,000 IU/mL—00
HBV DNA >20,000 IU/mL—050.0
SecondaryPanel 1, 2 and 3: Time to First Occurence of HBsAg Seroclearance

Time to first occurrence of HBsAg seroclearance (defined as quantitative HBsAg \<LLOQ \[\<0.05 IU/mL\]) were reported. Time to first occurrence of HBsAg seroclearance was defined as the number of days between the date of first study intervention intake and the date of the first occurrence of the HBsAg seroclearance. Participants who withdrew early from the study before achieving HBsAg seroclearance or who did not achieve HBsAg seroclearance were censored at the last available HBsAg assessment. Kaplan-Meier method was used for the estimation.

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Median · weeks
Panel 1, 2 and 3: Time to First Occurence of HBsAg Seroclearance
weeksPanel 1Panel 2Panel 3
Panel 1, 2 and 3: Time to First Occurence of HBsAg SeroclearanceNA (NA to NA)NA (NA to NA)NA (NA to NA)
SecondaryPanel 1, 2 and 3: Percentage of Participants With Virologic Breakthrough

Percentage of participants with virologic breakthrough on treatment were reported. Virological breakthrough was defined as having a confirmed on-treatment HBV DNA increase by \>1 log10 IU/mL from nadir level (lowest level reached during treatment) in participants who did not have on-treatment HBV DNA level \< LLOQ (\<20 IU/mL) or confirmed on-treatment HBV DNA level \>200 IU/mL in participants who had on-treatment HBV DNA level \<LLOQ (\<20 IU/mL) of the HBV DNA assay. Confirmed HBV DNA increase/level means that the criterion should be fulfilled at 2 or more consecutive time points or at the last observed on-treatment time point. On treatment was defined as the time period in which the participant received any of the study interventions (JNJ-3989 and/or JNJ 6379 and/or NA and/or PegIFN-alpha2a).

Time frame:
From baseline (Day 1) up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Virologic Breakthrough
percentage of participantsPanel 1Panel 2Panel 3
Panel 1, 2 and 3: Percentage of Participants With Virologic Breakthrough0 (0.00 to 20.57)0 (0.00 to 20.57)0 (0.00 to 43.77)
SecondaryPanel 1, 2 and 3: Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)

Percentage of participants with TEAES (including serious and non-serious) and TESAEs were reported. An AE was any untoward medical occurrence in a clinical study participant administered a medicinal (investigational or non-investigational) product. An AE does not necessarily have a causal relationship with the intervention. Any AE occurring at or after the initial administration of study intervention was considered to be treatment emergent. A 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.

Time frame:
Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Treatment Emergent Adverse Events (TEAEs) and Treatment Emergent Serious Adverse Events (TESAEs)
percentage of participantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
TEAEs90.0100.075.050.060.075.0
TESAEs10.000000
SecondaryPanel 1, 2 and 3: Number of Participants With HBV-Specific Peripheral Blood T-cell Responses

Number of participants with HBV-specific peripheral blood T-cell responses were reported. HBV-specific T-cells were characterized in peripheral blood mononuclear cell immune analysis by binding assays (multimer staining) combined with downstream T-cell responses and transcriptome profiling.

Time frame:
Open-label: Weeks 40, 44, and 48; Follow-up Phase: Follow-up Weeks 2, 12 and 24
Reported as:
Count of participants · Participants
Panel 1, 2 and 3: Number of Participants With HBV-Specific Peripheral Blood T-cell Responses
ParticipantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Open Label: Week 40660———
Open Label: Week 4401————
Open Label: Week 481—————
Follow-up Week 2———4103
Follow-up Week 12———152
Follow-up Week 24———594
SecondaryPanel 1, 2 and 3: Percentage of Participants With Worst (Grade 3 and 4) Treatment-emergent Division of Acquired Immunodeficiency Syndrome (DAIDS) Toxicity Grade in Clinical Laboratory Tests

Clinical laboratory test parameters were Hematology : absolute neutrophil count (ANC); Chemistry : alanine aminotransferase (ALT) and serum glutamic pyruvic transaminase (SGPT), aspartate aminotransferase(AST) or serum glutamic oxaloacetic transaminase (SGOT), amylase (pancreatic and total), creatinine Kinase, creatinine, low-density lipoprotein (LDL), lipase, estimated glomerular filtration rate (eGFR) on serum creatinine (Cr). DAIDS toxicity grades were Grade 1 (Mild), Grade 2 (Moderate), Grade 3 (Severe), Grade 4 (Potentially Life-Threatening). Percentage of participants with treatment-emergent DAIDS toxicity Grade 3 or 4 were reported in this outcome measure. For toxicity grades, treatment-emergent was concluded if the postbaseline grade was worse than the baseline grade. Only those abnormality categories in which at least one participant had data were reported.

Time frame:
Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Worst (Grade 3 and 4) Treatment-emergent Division of Acquired Immunodeficiency Syndrome (DAIDS) Toxicity Grade in Clinical Laboratory Tests
percentage of participantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Hematology: Absolute Neutrophil Count: Low: Grade 3010.025.0010.025.0
Chemistry: ALT or SGPT: High: Grade 3010.025.010.010.00
Chemistry: ALT or SGPT: High: Grade 40000025.0
Chemistry: AST/SGOT: High: Grade 3010.000025.0
Chemistry: Amylase (Pancreatic): High: Grade 425.000000
Chemistry: Amylase (Total): High: Grade 311.100000
Chemistry: Creatinine Kinase : High: Grade 30025.0000
Chemistry: Creatinine Kinase : High: Grade 4010.00000
Chemistry: Creatinine: High: Grade 311.100000
Chemistry: LDL (Fasting): High: Grade 3010.00000
Chemistry: Lipase: High: Grade 3010.00000
Chemistry: eGFR Cr: Low: Grade 3010.00000
SecondaryPanel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High)Treatment-emergent DAIDS Toxicity Grade in Electrocardiogram (ECG)

ECG parameters included ECG mean heart rate (HR)(beats per minute\[bpm\]), Pulse rate (PR) interval (milliseconds \[ms\]), QRS duration (ms) and QTc Corrected (Fridericia's formula QTcF). Abnormalities were graded as follows: ECG mean heart rate (abnormally low HR \<45 bpm) and (abnormally high HR\>=120 bpm); PR interval (abnormally high \>220 ms) and QPRS (abnormally high \>=120 ms); OT interval corrected for heart rate according to Fridericia (QTcF); borderline prolonged (BRD Pr )QTc (\>=450 to \<=480 ms), prolonged QTc (\>=480 to \<=500 ms)and pathologically prolonged QTc (\>500 ms). For worst abnormality, treatment-emergent was concluded if the abnormality worsened as compared to the abnormality at baseline: abnormally high to abnormally low and vice-versa. Only those abnormality categories in which at least one participant had data were reported.

Time frame:
Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High)Treatment-emergent DAIDS Toxicity Grade in Electrocardiogram (ECG)
percentage of participantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
ECG Mean HR: low (<45 bpm)010.00010.00
PR Interval: Aggregate: Abnormally high (>220 ms)11.120.0011.120.00
QTcF Interval: Aggregate: borderline prolonged QT (>=450to<=480 ms)010.00000
SecondaryPanel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High) Treatment-emergent DAIDS Toxicity Grade in Vital Signs

Percentage of participants with worst treatment-emergent DAIDS toxicity grade in vital signs were reported. Abnormality grades were: pulse rate (abnormally low \<=45 bpm) and (abnormally high \>=120 bpm). An assessment was treatment-emergent if abnormality worsened as compared to the abnormality at baseline: from abnormally high to abnormally low and vice-versa. Only the category (pulse rate) in which at least one participant had data were reported.

Time frame:
Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48
Reported as:
Number · percentage of participants
Panel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High) Treatment-emergent DAIDS Toxicity Grade in Vital Signs
percentage of participantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Percentage of Participants With Worst (Abnormally Low/High) Treatment-emergent DAIDS Toxicity Grade in Vital Signs010.00000
SecondaryPanel 1, 2 and 3: Number of Participants With Clinically Significant Treatment-emergent Abnormalities in Physical Examination

Number of participants with clinically significant treatment-emergent abnormalities in physical examination were reported. Physical examination included head/neck/thyroid, eyes/ears/nose/throat, respiratory, cardiovascular, lymph nodes, abdomen, skin, musculoskeletal, and neurological examinations.

Time frame:
Open-label: Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48
Reported as:
Count of participants · Participants
Panel 1, 2 and 3: Number of Participants With Clinically Significant Treatment-emergent Abnormalities in Physical Examination
ParticipantsOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
Panel 1, 2 and 3: Number of Participants With Clinically Significant Treatment-emergent Abnormalities in Physical Examination400000
SecondaryPanel 2 and 3: Plasma Trough Concentration (C[0hour]) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Plasma trough concentration (C\[0hour\]) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. C0h was the pre-dose plasma concentration of the JNJ-73763989 (JNJ-73763976, JNJ-73763924). Non-compartmental analysis were conducted to analyze plasma concentration of JNJ-73763989 and its molecules.

Time frame:
Week 4 : Pre-dose on Day 29
Reported as:
Mean · nanograms per milliliter (ng/mL)
Panel 2 and 3: Plasma Trough Concentration (C[0hour]) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms per milliliter (ng/mL)Panel 2Panel 3
JNJ-73763976NA ± NANA ± NA
JNJ-73763924NA ± NANA ± NA
SecondaryPanel 2: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Maximum observed plasma concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmax JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose
Reported as:
Number · nanograms per milliliter (ng/mL)
Panel 2: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms per milliliter (ng/mL)Panel 2
JNJ-73763976 - Participant 12757
JNJ-73763976 - Participant 21062
JNJ-73763924 - Participant 1595
JNJ-73763924 - Participant 2205
SecondaryPanel 3: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Maximum observed plasma concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmax JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose
Reported as:
Mean · nanograms per milliliter (ng/mL)
Panel 3: Maximum Observed Plasma Concentration (Cmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms per milliliter (ng/mL)Panel 3
JNJ-73763976924 ± 428
JNJ-73763924178 ± 73.1
SecondaryPanel 2 and 3: Minimum Observed Plasma Concentration (Cmin) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Minimum observed plasma concentration (Cmin) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze Cmin of JNJ-73763989 and its molecules

Time frame:
Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose
Reported as:
Mean · nanograms per milliliter (ng/mL)
Panel 2 and 3: Minimum Observed Plasma Concentration (Cmin) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms per milliliter (ng/mL)Panel 2Panel 3
JNJ-73763976NA ± NANA ± NA
JNJ-73763924NA ± NANA ± NA
SecondaryPanel 2: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976,JNJ-73763924)

Time to reach the maximum observed plasma concentration (tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze tmax of JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Post dose (15 minutes, 30 minutes, 1, 2, 3, 4, 6, and 24 hours)
Reported as:
Number · hours
Panel 2: Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976,JNJ-73763924)
hoursPanel 2
JNJ-73763976 - Participant 16.00
JNJ-73763976 - Participant 210.00
JNJ-73763924 - Participant 16.00
JNJ-73763924 - Participant 210.00
SecondaryPanel 3:Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Time to reach the maximum observed plasma concentration (tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze tmax of JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Post dose (15 minutes, 30 minutes, 1, 2, 3, 4, 6, and 24 hours)
Reported as:
Median · hours
Panel 3:Time to Reach the Maximum Observed Plasma Concentration (Tmax) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
hoursPanel 3
JNJ-737639766.00 (3.00 to 10.00)
JNJ-737639245.04 (3.00 to 10.00)
SecondaryPanel 2: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Area under the plasma concentration-time curve from time zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze AUC0 to 24h of JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose
Reported as:
Number · nanograms*hour per milliliters (ng*h/mL)
Panel 2: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms*hour per milliliters (ng*h/mL)Panel 2
JNJ-73763976 - Participant 127744
JNJ-73763976 - Participant 213820
JNJ-73763924 - Participant 15388
JNJ-73763924 - Participant 22649
SecondaryPanel 3: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)

Area under the plasma concentration-time curve from time zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924) were reported. Non-compartmental analysis were conducted to analyze AUC0 to 24h of JNJ-73763989 and its molecules.

Time frame:
Week 4 (Day 29): Pre-dose and 15 minutes, 30 minutes, 1, 2, 3, 4, 6, 8, 10 and 24 hours post dose
Reported as:
Mean · nanograms*hour per milliliters (ng*h/mL)
Panel 3: Area Under the Plasma Concentration-time Curve From Time Zero to 24hours (AUC0 to 24h) of JNJ-73763989 (JNJ-73763976, JNJ-73763924)
nanograms*hour per milliliters (ng*h/mL)Panel 3
JNJ-7376397613,256 ± 6,314
JNJ-737639242,394 ± 1,047

Adverse events

Collected over Open-label phase: From Day 1 (Week 1) up to Week 48; Follow-up Phase: Follow-up Week 1 up to follow-up Week 48. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
OL Phase: Panel 10/10 (0%)1/10 (10%)9/10 (90%)
OL Phase: Panel 20/10 (0%)0/10 (0%)10/10 (100%)
OL Phase: Panel 30/4 (0%)0/4 (0%)3/4 (75%)
FU Phase: Panel 10/10 (0%)0/10 (0%)5/10 (50%)
FU Phase: Panel 20/10 (0%)0/10 (0%)6/10 (60%)
FU Phase: Panel 30/4 (0%)0/4 (0%)3/4 (75%)
Most frequent serious events
Most frequent serious events
EventOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
GastroenteritisInfections and infestations1/100/100/40/100/100/4
Most frequent other events
Showing 10 of 69
Most frequent other events
EventOL Phase: Panel 1OL Phase: Panel 2OL Phase: Panel 3FU Phase: Panel 1FU Phase: Panel 2FU Phase: Panel 3
AstheniaGeneral disorders1/101/101/40/100/102/4
HeadacheNervous system disorders2/103/100/42/101/101/4
NeutropeniaBlood and lymphatic system disorders0/101/101/40/100/101/4
FatigueGeneral disorders2/102/101/40/101/100/4
PyrexiaGeneral disorders1/102/101/40/100/100/4
Covid-19Infections and infestations1/102/101/40/102/100/4
InsomniaPsychiatric disorders0/100/100/40/100/101/4
ThrombocytopeniaBlood and lymphatic system disorders0/102/100/40/100/100/4
Abdominal Pain LowerGastrointestinal disorders0/100/100/42/100/100/4
VomitingGastrointestinal disorders2/100/100/40/101/100/4

Baseline characteristics

Age, Continuous
Age, Continuous(years)Panel 1Panel 2Panel 3Total
Mean33.4 ± 14.7343.4 ± 12.6342 ± 12.7339 ± 13.86
Sex: Female, Male
Sex: Female, Male(Participants)Panel 1Panel 2Panel 3Total
Female55010
Male55414
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Panel 1Panel 2Panel 3Total
Hispanic or Latino0101
Not Hispanic or Latino109423
Unknown or Not Reported0000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Panel 1Panel 2Panel 3Total
American Indian or Alaska Native0000
Asian83011
Native Hawaiian or Other Pacific Islander0000
Black or African American2237
White0415
More than one race0000
Unknown or Not Reported0101
Region of Enrollment
Region of Enrollment(Participants)Panel 1Panel 2Panel 3Total
BELGIUM1102
CANADA5005
FRANCE0145
GERMANY0101
ITALY3205
NEW ZEALAND1203
POLAND0101
UNITED KINGDOM0101
UNITED STATES0101
08

Study locations

10 sites
  • Johns Hopkins University
    Baltimore, Maryland 21287, United States
  • UZ Antwerpen
    Edegem, 2650, Belgium
  • Toronto General Hospital
    Toronto, Ontario ON M5G 2C4, Canada
  • Hopital Beaujon
    Clichy, 92110, France
  • University Medical Center
    Hamburg, D-20246, Germany
  • Irccs Ospedale Maggiore Di Milano
    Milano, 20122, Italy
  • New Zealand Clinical Research
    Auckland, 1010, New Zealand
  • ID Clinic
    Myslowice, 41-400, Poland
  • Grahame Hayton Unit
    London, E1 1BB, United Kingdom
  • Kings College Hospital
    London, SE5 9RF, United Kingdom
09

References and documents

Study documents

  • Study protocol · Nov 25, 2021
  • Statistical analysis plan · Feb 9, 2024

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: Yes — The data sharing policy of the Janssen Pharmaceutical Companies of Johnson \& Johnson is available at www.janssen.com/clinical-trials/transparency. As noted on this site, requests for access to the study data can be submitted through Yale Open Data Access (YODA) Project site at yoda.yale.edu

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 21, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT04585789
Lead sponsor
Janssen Research & Development, LLC
Responsible party
Sponsor
First posted
Oct 14, 2020
Start date
Mar 11, 2021
Primary completion
Feb 8, 2023
Completion
Jan 9, 2024
Results posted
Mar 5, 2024
Last update
May 21, 2025

Study contacts

Janssen Research & Development, LLC Clinical Trial
study director · Janssen Research & Development, LLC

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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