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Trial · NCT01438424

Safety and Antiviral Activity of Entecavir in Participants With Chronic Hepatitis B Following Monotherapy in Other Entecavir Trials

NCT01438424, Phase 2, Completed, Bristol-Myers Squibb; results first posted 2012-08-23

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Safety and Antiviral Activity of Entecavir in Participants With Chronic Hepatitis B Following Monotherapy in Other Entecavir Trials. Trials, record NCT01438424. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01438424

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Trial

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

Title
Safety and Antiviral Activity of Entecavir in Participants With Chronic Hepatitis B Following Monotherapy in Other Entecavir Trials
NCT number
NCT01438424
Status
Completed
Phases
Phase 2
Enrollment
1,053 participants, actual
Lead sponsor
Bristol-Myers Squibb
Conditions
Hepatitis B Virus, HBV
Interventions
Entecavir, Lamivudine
First posted
2011-09-22
Last updated
2012-08-23
Results first posted
2012-08-23

Source ClinicalTrials.gov

Registered outcomes26

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

ListOutcomeTime frameDescription
PrimaryOverall Study: Number of Participants With Death As Outcome, Any Adverse Event (AE), Grade 3-4 AEs, Serious Adverse Events (SAEs), and Discontinuations Due to AEsContinuously from Day 1 through Week 240
An AE is a new unfavorable symptom, sign, or disease or worsening of a preexisting condition that may not be causally related to treatment. An SAE is an unfavorable medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency or abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Grade 1=mild; Grade 2=moderate; Grade 3=severe; Grade 4=life-threatening or disabling. ALT=alanine transaminase; ULN=upper limit of normal.
PrimaryOverall Study: Number of Participants With Normal Hematology Values at Baseline and Abnormalities in Hematology Laboratory Test Results Through Week 240Day 1 of treatment through Week 240
Hemoglobin (g/dL): Grade (Gr) 1=9.5-11.0; Gr 2=8.0-\<9.5; Gr 3=6.5-\<8.0; Gr 4=\<6.5 White blood cells (cells/mm\^3): Gr 1=2,500-\<4,000; Gr 2=1,000-\<2,500; Gr 3=800-\<1,000; Gr 4=\<800. Neutrophils (cells/mm\^3): Gr 1=1000-\<1500; Gr 2=750-\<1000; Gr 3=500-\<750; Gr 4=\<500. Platelets (cells/mm\^3): Gr 1=75,000-99,000; Gr 2=50,000-\<75,000; Gr 3=20,000-\<50,000; Gr 4=\<20,000. Prothrombin time (seconds): Gr 1=1.01-\<1.26\*ULN; Gr 2=1.26-\<1.51 \*ULN; Gr 3=1.51-3\*ULN; Gr 4=\>3\*ULN. INR: Gr 1=1.24-1.5; Gr 2=1.5-2; Gr 3=2-3; Gr 4=\>3. INR=international normalized ratio; ULN=upper limit of normal. .
Primary
Overall Study: Number of Participants With Normal Pancreatic Enzyme and Renal Function Values at Baseline and Abnormalities in Pancreatic Enzyme and Renal Function Laboratory Test Results at End of Dosing
Day 1 of treatment through Week 240
Amylase: Grade 1=1.10-\<1.40\*ULN; Grade 2=1.40-\< 2.10\*ULN; Grade 3=2.10-5.00\*ULN; Grade 4=\>5.00\*ULN. Lipase: Grade 1.1-\<1.4\*ULN; Grade 2=1.4-\<2.1\*ULN; Grade 3=2.1-5.0\*ULN; Grade 4=\>5.0\*ULN. Creatinine: Grade 1=1.10-\< 1.60\*ULN; Grade 2=1.60-\<3.10\*ULN; Grade 3=3.10-6.00\*ULN; Grade 4=\>6.00\*ULN. Blood urea nitrogen (BUN): Grade 1=1.25-\<2.60\*ULN; Grade 2=2.60-\<5.10\*ULN; Grade 3=5.10-10\*ULN; Grade 4=\>10\*ULN. ULN=upper limit of normal.
PrimaryOverall Study: Number of Participants With Normal Electrolyte and Fasting Glucose Values at Baseline and Abnormalities in Electrolyte and Fasting Glucose Laboratory Test Results at End of DosingDay 1 of treatment through Week 240
Hypochloremia: Grade (Gr) 1=90-93; Gr 2=85-\<90; Gr 3=80-\<85; Gr 4=40-\<80. Hyperchloremia: Gr 1=113-\<117; Gr 2=117-\<121; Gr 3=121-125; Gr 4\>125. Hypocarbia: Gr 1=19-21; Gr 2=15-\<19; Gr 3=41-45; Gr 4=\>45. Hypercarbia: Gr 1=31-36; Gr 2=37-40; Gr 3=41-45; Gr 4=\>45. Hyponatremia: Gr 1=130-132; Gr 2=123-\<130; Gr 3=116-\<123; Gr 4\<116. Hypernatremia: Gr 1=148-\<151; Gr 2=151-\<158; Gr 3=158-165; Gr 4=\>165. Hypokalemia: Gr 1=3-3.4; Gr 2=2.5-\<3; Gr 3=2-\<2.5; Gr 4=\<2. Hyperkalemia: Gr 1=5.6-\<6.1; G2=6.1-\<6.6; Gr 3=6.6-7; Gr 4=\>7. Hypoglycemia: Gr 1=55-64; Gr 2=40-\<55; Gr 3=30-\< 40; G4=-\<30. Hyperglycemia: Gr 1=116-\<161; Gr 2=161-\<251; Gr 3=251-500; Gr 4\>500.
PrimaryWeek 144: Number of Participants With Death As Outcome, Any AE, Grade 3-4 AEs, SAEs, Discontinuations Due to AEs, and Abnormalities in Selected Laboratory Test ResultsContinuously from Day 1 through Week 144
An AE is any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have a causal relationship with treatment. An SAE is any unfavorable medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency or abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. Grade 1=mild; Grade 2=moderate; Grade 3=severe; Grade 4=life-threatening or disabling. AST=aspartate aminotransferase; ULN=upper limit of normal.
PrimaryWeek 192: Number of Participants With Death As Outcome, Any AE, Grade 3-4 AEs, SAEs, Discontinuations Due to AEs, and Abnormalities in Selected Laboratory Test ResultsContinuously from Day 1 through Week 192
An AE is any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have a causal relationship with treatment. An SAE is any unfavorable medical event that at any dose results in death, persistent or significant disability/incapacity, or drug dependency or abuse; is life-threatening, an important medical event, or a congenital anomaly/birth defect; or requires or prolongs hospitalization. CTC Grade 1=mild; Grade 2=moderate; Grade 3=severe; Grade 4=life-threatening or disabling. ALT=alanine aminotransferase; ULN=upper limit of normal.
PrimaryOff-treatment Follow-up: Percentage of Participants With Sustained Hepatitis B Virus (HBV) DNA <10,000 Copies by Polymerase Chain Reaction (PCR) Assay (Amendment 11 Cohort)End of dosing to Week 48 off-treatment follow-up
The Amendment 11 Cohort consisted of participants who were hepatitis B e antigen (HBeAg) negative and who had compensated liver disease, a minimum of 192 weeks (4 years) of treatment with entecavir, HBV DNA \<300 copies/mL by PCR assay for ≥48 weeks before end of dosing and on the last observed result ≤24 weeks prior to end of dosing, and serum ALT levels ≤1.0\*ULN at the end of study drug dosing.ALT=alanine aminotransferase; ULN=upper limit of normal.
SecondaryOverall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayStudy entry to Week 192
SecondaryOverall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayStudy entry to Week 192
SecondaryOverall Study: Percentage of Participants by HBV DNA Category by PCR AssayBaseline to Week 192Observed values.

Outcomes26

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

TypeOutcomeTime framePopulationUnitsMeasured as
SECONDARYOverall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayStudy entry to Week 192Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
SECONDARYOverall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayStudy entry to Week 192Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
SECONDARYOverall Study: Percentage of Participants by HBV DNA Category by PCR AssayBaseline to Week 192Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
PRIMARYOverall Study: Number of Participants With Death As Outcome, Any Adverse Event (AE), Grade 3-4 AEs, Serious Adverse Events (SAEs), and Discontinuations Due to AEsContinuously from Day 1 through Week 240All participants who received at least 1 dose of study drug in the current study.ParticipantsNUMBER
SECONDARYOverall Study: Mean HBV DNA Level by PCR AssayStudy entry to Week 216Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)log10 copies/mLMEAN
SECONDARYOverall Study: Percentage of Participants Who Achieved a Loss of Hepatitis B e Antigen (HBeAg)Study entry to Week 216Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
SECONDARYOverall Study: Percentage of Participants With HBeAg SeroconversionStudy entry to Week 216Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
SECONDARYOverall Study: Mean Alanine Transaminase (ALT) LevelsStudy entry to Week 216Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)U/LMEAN
SECONDARYOverall Study: Percentage of Participants Who Achieved ALT NormalizationStudy entry to Week 216Participants who received at least 1 dose of study drug in the current study. (n=number of evaluable participants)Percentage of participantsNUMBER
SECONDARYWeek 192: Percentage of Participants With Histologic Improvement (Efficacy Evaluable Cohort)Baseline to Week 192
Subset of participants who who had evaluable paired liver biopsy results at Phase 3 study baseline and on their last observed biopsies performed in the current study. (n=number of evaluable participants)
Percentage of participantsNUMBER

Results by group205

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

OutcomeGroupCategoryValueSpreadUnits
Overall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineAt study entry (n=1051)17Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 48 (n=905)63Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 96 (n=691)67Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 144 (n=597)73Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA Level <300 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 192 (n=485)78Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineAt study entry (n=1051)28Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 48 (n=905)76Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 96 (n=691)77Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 144 (n=597)81Percentage of participants
Overall Study: Percentage of Participants With Sustained HBV DNA <10^4 Copies/mL by PCR AssayEntecavir, 0.5 or 1.0 mg, With or Without LamivudineWeek 192 (n=485)85Percentage of participants

Participant flow3

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDEntecavir, 0.5 or 1.0 mg, With or Without Lamivudine1,051
Overall StudyCOMPLETEDEntecavir, 0.5 or 1.0 mg, With or Without Lamivudine634
Overall StudyNOT COMPLETEDEntecavir, 0.5 or 1.0 mg, With or Without Lamivudine417

Adverse events2,096

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHEPATIC ENCEPHALOPATHYNervous system disordersAdefovir, 10 mg235
otherHEPATIC ENCEPHALOPATHYNervous system disordersEntecavir, 0.02588 mg01
otherHEPATIC ENCEPHALOPATHYNervous system disordersEntecavir, 0.1 mg029
otherHEPATIC ENCEPHALOPATHYNervous system disordersEntecavir, 0.5 mg0336
otherHEPATIC ENCEPHALOPATHYNervous system disordersEntecavir, 1.0 mg0123
otherHEPATIC ENCEPHALOPATHYNervous system disordersLamovidine, 100 mg0523
otherHEPATIC ENCEPHALOPATHYNervous system disordersMissing02
otherHEPATIC ENCEPHALOPATHYNervous system disordersPlacebo02
otherABDOMINAL PAINGastrointestinal disordersAdefovir, 10 mg135
otherABDOMINAL PAINGastrointestinal disordersEntecavir, 0.02588 mg01

Adverse event totals24

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityAdefovir, 10 mg
Total, all-cause mortalityEntecavir, 0.02588 mg
Total, all-cause mortalityEntecavir, 0.1 mg
Total, all-cause mortalityEntecavir, 0.5 mg
Total, all-cause mortalityEntecavir, 1.0 mg
Total, all-cause mortalityLamovidine, 100 mg
Total, all-cause mortalityMissing
Total, all-cause mortalityPlacebo
Total, other adverse eventsAdefovir, 10 mg2735
Total, other adverse eventsEntecavir, 0.02588 mg01

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
22233350DERIVED

Source PubMed

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.

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Read this trial from software.

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

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