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VOX

Phase 2

Hepatitis C Virus Infection | Small molecule | Infectious Disease |Gilead Sciences, Inc.|Last Updated: Mar 6, 2020

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
CONTROLLEDBiomarker
Total Trials2
Total Enrollment333
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02378935Safety and Efficacy of Voxilaprevir Plus Sofosbuvir/Velpatasvir Fixed Dose Combination in Adults With Chronic Genotype 1 HCV InfectionPHASE2 COMPLETED 205Feb 17, 2015Apr 12, 2016Mar 6, 202034 United States, New Zealand +1
NCT02378961Safety and Efficacy of Voxilaprevir Plus Sofosbuvir/Velpatasvir Fixed Dose Combination in Adults With Chronic Non-Genotype 1 HCV InfectionPHASE2 COMPLETED 128Feb 16, 2015Jan 26, 2016Mar 3, 202034 United States, New Zealand +1
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Study Endpoints
Primary Endpoints
Percentage of Participants With Sustained Virologic Response 12 Weeks After Discontinuation of Therapy (SVR12)
Posttreatment Week 12

SVR12 was defined as HCV RNA \< the lower limit of quantitation (LLOQ) 12 weeks following the last dose of study treatment.

Percentage of Participants Who Permanently Discontinued Any Study Drug Due to an Adverse Event
Up to 12 Weeks
Secondary Endpoints
Percentage of Participants With Sustained Virologic Response 4 and 24 Weeks After Discontinuation of Therapy (SVR4 and SVR24)
Posttreatment Weeks 4 and 24
Percentage of Participants With HCV RNA < LLOQ on Treatment
Baseline through end of treatment (Week 6, Week 8 or Week 12, as applicable)
HCV RNA Change From Baseline
Baseline through end of treatment (Week 6, Week 8 or Week 12, as applicable)
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
VOX+SOF/VEL 6 wk, TN, without cirrhosisEXPERIMENTALVOX + SOF/VEL for 6 weeks (treatment naive (TN), without cirrhosis)
VOX+SOF/VEL 8 wk, TN, without cirrhosisEXPERIMENTALVOX + SOF/VEL for 8 weeks (treatment naive, without cirrhosis)
VOX+SOF/VEL 6 wk, TN, with cirrhosisEXPERIMENTALVOX + SOF/VEL for 6 weeks (treatment naive, with cirrhosis)
VOX+SOF/VEL 8 wk, TN, with cirrhosisEXPERIMENTALVOX + SOF/VEL for 8 weeks (treatment naive, with cirrhosis)
VOX+SOF/VEL+RBV 8 wk, TN, with cirrhosisEXPERIMENTALVOX + SOF/VEL+RBV for 8 weeks (treatment naive, with cirrhosis)
VOX+SOF/VEL 8 wk, DAA-E, without cirrhosisEXPERIMENTALVOX + SOF/VEL for 8 weeks (direct-acting antiviral experienced (DAA-E), without cirrhosis)
VOX+SOF/VEL 12 wk, DAA-E, without cirrhosisEXPERIMENTALVOX + SOF/VEL for 12 weeks (direct-acting antiviral experienced, without cirrhosis)
VOX+SOF/VEL 8 wk, DAA-E, with cirrhosisEXPERIMENTALGS-9857 + SOF/VEL for 8 weeks (direct-acting antiviral experienced, with cirrhosis)
VOX+SOF/VEL 12 wk, DAA-E, with cirrhosisEXPERIMENTALGS-9857 + SOF/VEL for 12 weeks (direct-acting antiviral experienced, with cirrhosis)
VOX+SOF/VEL 12 wk (GS-US-338-1121)EXPERIMENTALVOX + SOF/VEL for 12 weeks (participants who were previously enrolled in GS-US-338-1121 phase 1b study)
GS-9857+SOF/VEL 6 wk, TN, with cirrhosisEXPERIMENTALGS-9857 + SOF/VEL for 6 weeks (treatment naive, with cirrhosis)
VOX+SOF/VEL 8 wk,TE, without cirrhosisEXPERIMENTALGS-9857 + SOF/VEL for 8 weeks (treatment experienced (TE), without cirrhosis)
VOX+SOF/VEL 12 wk, TE, without cirrhosisEXPERIMENTALVOX + SOF/VEL for 12 weeks (treatment experienced, without cirrhosis)
GS-9857+SOF/VEL 8 wk, TE, with cirrhosisEXPERIMENTALGS-9857 + SOF/VEL for 8 weeks (treatment experienced, with cirrhosis)
VOX+SOF/VEL 12 wk, TE, with cirrhosisEXPERIMENTALVOX + SOF/VEL for 12 weeks (treatment experienced, without cirrhosis)
Interventions
NameTypeDescription
VOXDRUG100 mg tablet(s) administered orally once daily with food
SOF/VELDRUG400/100 mg FDC tablet administered orally once daily with food
RBVDRUGTablets administered orally in a divided daily dose according to package insert weight-based dosing recommendations (\< 75 kg = 1000 mg and ≥ 75 kg = 1200 mg)
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites34

Key Inclusion Criteria: * Individuals with chronic HCV infection * HCV RNA ≥10\^4 IU/mL at screening * HCV genotype 1 * Cirrhosis determination; a liver biopsy may be required * Screening laboratory values within defined thresholds * Use of two contraception methods if female of childbearing potent...

Countries:United StatesNew ZealandPuerto Rico
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