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Tenofovir disoproxil

Phase 3

Hepatitis B | Small molecule | Infectious Disease |GSK plc|Last Updated: Jul 13, 2018

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment512
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01300234Efficacy and Safety of Tenofovir Disoproxil Fumarate (TDF) 300mg in Chinese Subjects With Chronic Hepatitis B (CHB)PHASE3 COMPLETED 512Mar 30, 2011Dec 6, 2016Jul 13, 201820 China
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Study Endpoints
Primary Endpoints
Participants With Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA) <400 Copies/Milliliter (mL) at Week 48
Week 48

The number of participants with Hepatitis B Virus (HBV) deoxyribonucleic acid (DNA) \<400 copies/milliliter (mL) at Week 48 in the hepatitis B e antigen (HBeAg)-positive and HBeAg-negative population was assessed. HBeAg is a viral protein that is secreted by hepatitis B-infected cells. It is associated with chronic hepatitis B infections and is used as a marker of active viral disease and a participant's degree of infectiousness. A positive result indicates that the participant has high levels of virus in the blood and greater infectiousness. Usually, a negative result indicates that the participant has lower levels of virus in the blood and is less infectious. A "non-completers equal failures" approach is used for the analysis in ITT population. Only those participants available at the specified time points (represented by n=X in the category titles) were analyzed.

Secondary Endpoints
Participants With HBV DNA <400 Copies/mL at Weeks 96, 144, 192, and 240
Weeks 96, 144, 192, and 240
Change From Baseline of Log 10 Copies/mL HBV DNA at Weeks 48, 96, 144, 192 and 240
Baseline, Weeks 48, 96, 144, 192 and 240
Number of Participants With Alanine Aminotransferase (ALT) Normalization at Weeks 48, 96, 144, 192 and 240 in Participants Who Had Abnormal ALT at Baseline
Baseline; Weeks 48, 96, 144, 192 and 240
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
A (TDF tablets)EXPERIMENTALTenofovir disoproxil fumarate (TDF) tablets
B (ADV tablets)ACTIVE_COMPARATORAdefovir dipivoxil (ADV) tablets
Interventions
NameTypeDescription
Tenofovir disoproxil fumarate (TDF) tabletsDRUGwhite, almond-shaped, film-coated tablets containing 300mg of TDF
Adefovir dipivoxil (ADV) tabletsDRUGwhite to off-white, round, biconvex tablets containing 10mg of ADV
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Eligibility Criteria
Age Range18 Years — 69 Years
SexALL
Healthy VolunteersNo
Study Sites20

Inclusion Criteria: * HBeAg positive/negative CHB with blood HBVDNA≥10\^5 copies/mL and elevated ALT * Nucleoside and nucleotide naïve CHB subjects. Previous lamivudine treatment is allowed in less than 10% of the total study population Exclusion Criteria: * subjects with hepatocellular carcinoma...

Countries:China
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