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Trial · NCT03852719

Study to Assess Efficacy and Safety of Bulevirtide in Participants With Chronic Hepatitis Delta (CHD)

NCT03852719, Phase 3, Completed, Gilead Sciences; results first posted 2022-10-28

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Study to Assess Efficacy and Safety of Bulevirtide in Participants With Chronic Hepatitis Delta (CHD). Trials, record NCT03852719. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03852719

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Study to Assess Efficacy and Safety of Bulevirtide in Participants With Chronic Hepatitis Delta (CHD)
NCT number
NCT03852719
Status
Completed
Phases
Phase 3
Enrollment
150 participants, actual
Lead sponsor
Gilead Sciences
Conditions
Chronic Hepatitis Delta
Interventions
Bulevirtide
First posted
2019-02-25
Last updated
2025-08-22
Other registries' IDs
eudract:2019-001213-17
Results first posted
2022-10-28

Source ClinicalTrials.gov

Registered outcomes11

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Participants With Combined Response at Week 48Week 48
Combined response was defined as fulfilment of two conditions simultaneously: Undetectable (\< lower limit of quantification (LLOQ, target not detected)) HDV RNA or decrease by ≥ 2 log10 IU/mL from baseline; and ALT normalization.
SecondaryPercentage of Participants With Undetectable HDV RNA at Week 48Week 48Undetectable HDV RNA at Week 48 means undetectable (\< LLOQ, target not detected) HDV RNA at Week 48.
SecondaryPercentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48Week 48
ALT normalization was defined as an ALT value within the normal range, based on the central laboratories \[Russian sites: ≤ 31 U/L for females and ≤ 41 U/L for males; all other sites: ≤ 34 U/L for females and ≤ 49 U/L for males\])
SecondaryChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 48Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 48ANCOVA was used for analysis.
SecondaryChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 96Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 96Mixed model for repeated measurements (MMRM) was used for analysis.
SecondaryChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 144Baseline, Week 144MMRM was used for analysis.
SecondaryChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 192Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 192MMRM was used for analysis.
SecondaryChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 240Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 240MMRM was used for analysis.
SecondaryPercentage of Participants With Undetectable HDV RNA 24 Weeks After Scheduled End of Treatment (Sustained Virological Response)Week 168Undetectable HDV RNA 24 Weeks after Scheduled End of Treatment means undetectable (\< LLOQ, target not detected) HDV RNA at Week 168
SecondaryPercentage of Participants With Undetectable HDV RNA 48 Weeks After Scheduled End of Treatment (Sustained Virological Response)Week 192Undetectable HDV RNA 48 Weeks after Scheduled End of Treatment means undetectable (\< LLOQ, target not detected) HDV RNA at Week 192

Outcomes11

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Participants With Combined Response at Week 48Week 48
The Full Analysis Set included participants randomized to delayed treatment arm or randomized to bulevirtide and received bulevirtide at least once after randomization. Participants were grouped according to randomized treatment. The arm titles and descriptions in this outcome measure are entered accordingly.
percentage of participantsNUMBER
SECONDARYPercentage of Participants With Undetectable HDV RNA at Week 48Week 48Participants in the Full Analysis Set were analyzed. Participants were grouped according to randomized treatment. The arm titles and descriptions in this outcome measure are entered accordingly.percentage of participantsNUMBER
SECONDARYPercentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48Week 48Participants in the Full Analysis Set were analyzed. Participants were grouped according to randomized treatment. The arm titles and descriptions in this outcome measure are entered accordingly.percentage of participantsNUMBER
SECONDARYChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 48Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 48
Participants in the Full Analysis Set with available data were analyzed. Data is reported separately for changes from Baseline at Week 48 for the Delayed Treatment arm and for Delayed Treatment/Bulevirtide 10 mg/day arm after 48 weeks of bulevirtide 10 mg treatment. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
kPaLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 96Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 96
Participants from Full Analysis Set with available data were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
kPaLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 144Baseline, Week 144
Participants from Full Analysis Set with available data were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
kPaLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 192Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 192
Participants from Full Analysis Set with available data were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
kPaLEAST_SQUARES_MEAN
SECONDARYChange From Baseline in Liver Stiffness, as Measured by Elastography at Week 240Baseline (Baseline for Delayed Treatment/Bulevirtide 10 mg/day is reset at Week 48), Week 240
Participants from Full Analysis Set with available data were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
kPaLEAST_SQUARES_MEAN
SECONDARYPercentage of Participants With Undetectable HDV RNA 24 Weeks After Scheduled End of Treatment (Sustained Virological Response)Week 168
Participants in the Full Analysis Set were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
percentage of participantsNUMBER
SECONDARYPercentage of Participants With Undetectable HDV RNA 48 Weeks After Scheduled End of Treatment (Sustained Virological Response)Week 192
Participants in the Full Analysis Set were analyzed. Participants were grouped according to randomized treatment and study design. The arm titles and descriptions in the outcome measure are entered accordingly.
percentage of participantsNUMBER

Results by group33

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Participants With Combined Response at Week 48Delayed Treatment2.095% Confidence Interval 0.0 to 10.4percentage of participants
Percentage of Participants With Combined Response at Week 48Bulevirtide 2 mg/Day44.995% Confidence Interval 30.7 to 59.8percentage of participants
Percentage of Participants With Combined Response at Week 48Bulevirtide 10 mg/Day48.095% Confidence Interval 33.7 to 62.6percentage of participants
Percentage of Participants With Undetectable HDV RNA at Week 48Delayed Treatment095% Confidence Interval 0.0 to 7.0percentage of participants
Percentage of Participants With Undetectable HDV RNA at Week 48Bulevirtide 2 mg/Day12.295% Confidence Interval 4.6 to 24.8percentage of participants
Percentage of Participants With Undetectable HDV RNA at Week 48Bulevirtide 10 mg/Day20.095% Confidence Interval 10.0 to 33.7percentage of participants
Percentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48Delayed Treatment11.895% Confidence Interval 4.4 to 23.9percentage of participants
Percentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48Bulevirtide 2 mg/Day51.095% Confidence Interval 36.3 to 65.6percentage of participants
Percentage of Participants With Alanine Aminotransferase (ALT) Normalization at Week 48Bulevirtide 10 mg/Day56.095% Confidence Interval 41.3 to 70.0percentage of participants
Change From Baseline in Liver Stiffness, as Measured by Elastography at Week 48Delayed Treatment0.8795% Confidence Interval -0.79 to 2.53kPa

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDelayed Treatment/Bulevirtide 10 mg/Day51
Overall StudySTARTEDBulevirtide 2 mg/Day49
Overall StudySTARTEDBulevirtide 10 mg/Day50
Overall StudyDid Not Receive BulevirtideDelayed Treatment/Bulevirtide 10 mg/Day1
Overall StudyDid Not Receive BulevirtideBulevirtide 2 mg/Day0
Overall StudyDid Not Receive BulevirtideBulevirtide 10 mg/Day0
Overall StudyCOMPLETEDDelayed Treatment/Bulevirtide 10 mg/Day28
Overall StudyCOMPLETEDBulevirtide 2 mg/Day28
Overall StudyCOMPLETEDBulevirtide 10 mg/Day30
Overall StudyNOT COMPLETEDDelayed Treatment/Bulevirtide 10 mg/Day23

Adverse events720

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherAnaemiaBlood and lymphatic system disordersDelayed Treatment (Baseline to Week 48)351
otherAnaemiaBlood and lymphatic system disordersBulevirtide 2 mg/Day (Baseline to Week 48)349
otherAnaemiaBlood and lymphatic system disordersBulevirtide 10 mg/Day (Baseline to Week 48)250
otherAnaemiaBlood and lymphatic system disordersBulevirtide 2 mg/Day (Baseline to Week 144)549
otherAnaemiaBlood and lymphatic system disordersBulevirtide 10 mg/Day (Baseline to Week 144)350
otherAnaemiaBlood and lymphatic system disordersDelayed Treatment/Bulevirtide 10 mg/Day (Week 48 to Week 144)350
otherAnaemiaBlood and lymphatic system disordersBulevirtide 2 mg/Day (After EOT (>Week 144 up to Week 240))146
otherAnaemiaBlood and lymphatic system disordersBulevirtide 10 mg/Day (After EOT (>Week 144 up to Week 240)147
otherAnaemiaBlood and lymphatic system disordersDelayed Treatment/Bulevirtide 10 mg/Day (After EOT (>Week 144 up to Week 240)549
otherEosinophiliaBlood and lymphatic system disordersDelayed Treatment (Baseline to Week 48)051

Adverse event totals27

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDelayed Treatment (Baseline to Week 48)051
Total, all-cause mortalityBulevirtide 2 mg/Day (Baseline to Week 48)049
Total, all-cause mortalityBulevirtide 10 mg/Day (Baseline to Week 48)050
Total, all-cause mortalityBulevirtide 2 mg/Day (Baseline to Week 144)049
Total, all-cause mortalityBulevirtide 10 mg/Day (Baseline to Week 144)050
Total, all-cause mortalityDelayed Treatment/Bulevirtide 10 mg/Day (Week 48 to Week 144)150
Total, all-cause mortalityBulevirtide 2 mg/Day (After EOT (>Week 144 up to Week 240))046
Total, all-cause mortalityBulevirtide 10 mg/Day (After EOT (>Week 144 up to Week 240)047
Total, all-cause mortalityDelayed Treatment/Bulevirtide 10 mg/Day (After EOT (>Week 144 up to Week 240)049
Total, other adverse eventsDelayed Treatment (Baseline to Week 48)3051

Papers9

The papers the trial lists on ClinicalTrials.gov.

PMIDListed asSource
35752223BACKGROUNDPubMed
37120031DERIVEDPubMed
37345876BACKGROUNDPubMed
38340811DERIVEDPubMed
38734383BACKGROUNDPubMed
39009085DERIVEDPubMed
39648559DERIVEDPubMed
41405233DERIVEDPubMed
41966308DERIVEDPubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03852719

GET https://conductscience.org/api/trials/v1/NCT03852719/results?page=2