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Sofosbuvir/Velpatasvir/Voxilaprevir

Phase 3

Chronic Hepatitis C | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Mar 10, 2022

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
RandomizedCONTROLLEDDMCBiomarker
Total Trials3
Total Enrollment680
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01783678A Phase 3, Open-label Study to Investigate the Efficacy and Safety of Sofosbuvir Plus Ribavirin in Chronic Genotype 1, 2, 3 and 4 Hepatitis C Virus (HCV) and Human Immunodeficiency Virus (HIV) Co-infected AdultsPHASE3 COMPLETED 275Jan 1, 2013Jul 1, 2014Apr 30, 201524 Australia, France +4
NCT01641640Sofosbuvir With Peginterferon Alfa 2a and Ribavirin for 12 Weeks in Treatment-Naive Subjects With Chronic Genotype 1, 4, 5, or 6 HCV InfectionPHASE3 COMPLETED 328Jun 1, 2012Apr 1, 2013May 8, 201456 United States, Puerto Rico
NCT02745535Safety, Tolerability and Efficacy of Sofosbuvir, Velpatasvir, and Voxilaprevir in Subjects With Previous DAA ExperiencePHASE2 COMPLETED 77May 1, 2016Oct 24, 2018Mar 10, 20221 United States
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Study Endpoints
Primary Endpoints
Percentage of Participants With Sustained Virologic Response (SVR) at 12 Weeks After Discontinuation of Therapy (SVR12)
Posttreatment Week 12

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ, ie, \< 25 IU/mL) 12 weeks following the last dose of study drug.

Incidence of Adverse Events Leading to Permanent Discontinuation of Study Drug(s)
Up to 24 weeks

The percentage of participants permanently discontinuing any study drug due to an adverse event was summarized.

Percentage of Participants Achieving Sustained Virologic Response (SVR)12
Posttreatment Week 12

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ; ie, 25 IU/mL) 12 weeks after cessation of therapy.

Number of Participants Experiencing Adverse Events Leading to Permanent Discontinuation of Study Drug
Baseline to Week 12

The number of participants experiencing adverse events leading to permanent discontinuation of study drug was summarized. Adverse events may or may not have been related to study treatment. Participants discontinuing study drug were permitted to remain on the study for further assessments.

Number of Participants With Grade 3 and 4 Adverse Events
up to 16 weeks

Number of participants with grade 3 and 4 adverse events during treatment with and/or within 30 of completion of SOF/VEL/VOX in HCV infected

Number of Participants Who Achieve Sustained Virologic Response (SVR) 12 Weeks After Completion of Therapy (SVR12)
Post-treatment week 12

Intention to treat (ITT) analysis. Sustained Virologic Response as measure by an undetectable HCV RNA level 12 weeks after completion of therapy.

Secondary Endpoints
Percentage of Participants With Sustained Virologic Response at 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
Posttreatment Weeks 4 and 24
HCV RNA Change From Baseline at Week 1
Baseline; Week 1
HCV RNA Change From Baseline at Week 2
Baseline; Week 2
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Genotype 2 treatment-naiveEXPERIMENTALTreatment-naive (TN) participants with HIV-1 and genotype 2 HCV coinfection will receive sofosbuvir plus RBV for 12 weeks.
Genotype 2/3 treatment-experiencedEXPERIMENTALTreatment-experienced (TE) participants with HIV-1 and genotype 2 or 3 HCV co-infection will receive sofosbuvir plus RBV for 24 weeks.
Genotype 1/3/4 treatment-naiveEXPERIMENTALTreatment naive (TN) participants with HIV-1 and genotype 1, 3, or 4 HCV co-infection will receive sofosbuvir plus RBV for 24 weeks.
Sofosbuvir+PEG+RBVEXPERIMENTAL -
SOF/VEL/VOXEXPERIMENTALFixed dose combination of SOF/VEL/VOX (Sofosbuvir 400mg/Velpatasvir 100mg/ Voxilaprevir 100mg) dosed once daily for 12 weeks.
Interventions
NameTypeDescription
SofosbuvirDRUGSofosbuvir 400 mg tablet administered orally once daily
RBVDRUGRibavirin (RBV) tablets administered orally in a divided daily dose according to package insert weight-based dosing recommendations (\< 75kg = 1000 mg and ≥ 75 kg = 1200 mg)
PEGDRUGPegylated interferon alfa-2a (PEG) 180 μg administered once weekly by subcutaneous injection
Sofosbuvir/Velpatasvir/VoxilaprevirDRUG -
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites24

Inclusion Criteria: * Age ≥ 18 years with HIV-1 and chronic HCV genotype 1, 2, 3, or 4 co-infection * HCV RNA \> 10,000 IU/mL at screening * HCV treatment history: * Treatment-naive for HCV genotypes 1, 2, 3, or 4, or * Treatment-experienced for HCV genotypes 2 or 3 * HIV antiretroviral (ARV) ...

Countries:AustraliaFranceGermanyItalySpainUnited KingdomUnited StatesPuerto Rico
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