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Filibuvir

Phase 2

Hepatitis | Small molecule | Infectious Disease |Pfizer, Inc.|Last Updated: Jan 27, 2014

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-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment288
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00987337Filibuvir In Treatment Naive Hepatitis C Virus (HCV) Genotype 1 SubjectsPHASE2 COMPLETED 288Nov 1, 2009Jan 1, 2012Jan 27, 201477 United States, Belgium +7
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Study Endpoints
Primary Endpoints
Percentage of Participants With Sustained Viral Response (SVR) at Week 72
Week 72

For participants who received filibuvir, had undetectable HCV RNA from Week 4 through 24 and discontinued therapy at Week 24, SVR was defined as undetectable plasma HCV RNA levels (\<15 IU/mL) at both Week 24 (End of Treatment \[EOT\]) and Week 72, regardless of the HCV RNA levels between Week 24 and 72. For participants who received filibuvir, had detectable HCV RNA at Week 4 or later and discontinued therapy at Week 48 or who received placebo, SVR was defined as undetectable plasma HCV RNA levels (\<15 IU/mL) at both Week 48 (EOT) and Week 72, regardless of the HCV RNA levels between Week 48 and 72.

Secondary Endpoints
Percentage of Participants With Undetectable Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Week 4, 12, 24 and 48
Week 4, 12, 24, 48
Percentage of Participants With Sustained Viral Response at 12 Weeks Following Completion of Therapy (SVR12)
12 weeks after completion of therapy (Week 36 or 60)
Percentage of Participants With Sustained Viral Response at 24 Weeks Following Completion of Therapy (SVR24)
24 weeks after completion of therapy (Week 48 or 72)
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Arm AEXPERIMENTALFilibuvir 300 mg BID + pegIFN/RBV x 24 weeks (subjects with undetectable HCV RNA at week 4) \- or - Filibuvir 300 mg BID + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks (subjects with detectable HCV RNA at week 4)
Arm BEXPERIMENTALFilibuvir 600 mg BID + pegIFN/RBV x 24 weeks (subjects with undetectable HCV RNA at week 4) \- or - Filibuvir 600 mg BID + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks (subjects with detectable HCV RNA at week 4)
Arm CPLACEBO_COMPARATORPlacebo + pegIFN/RBV x 24 weeks followed by pegIFN/RBV x 24 weeks
Interventions
NameTypeDescription
FilibuvirDRUG300 mg BID
PlaceboDRUGBID
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites77

Inclusion Criteria: * Male or female subjects at least 18 years of age. * HCV seropositive. * HCV RNA \>10,000 IU/mL at screening. * HCV Genotype 1. Subjects infected with a non-genotype 1 strain or mixed genotypes are not eligible. * Treatment naïve (no prior treatment with IFN alfa +/ RBV regimen...

Countries:United StatesBelgiumCanadaFranceGermanyHungaryPuerto RicoSouth KoreaSpain
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