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Small Molecule Agent

Phase 1

Hepatitis, Chronic | Small molecule | Infectious Disease |Pfizer, Inc.|Last Updated: Jan 14, 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
CONTROLLEDBiomarker
Total Trials1
Total Enrollment20
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00671671Phase 1 Study To Evaluate Antiviral Activity Of Small Molecule Direct Antiviral Agent At Multiple Doses In Subjects With Chronically Infected Hepatitis C Virus.PHASE1 COMPLETED 20Apr 1, 2008Dec 1, 2008Jan 14, 20141 United States
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Study Endpoints
Primary Endpoints
Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 11 (Cohort A): Full Analysis Set
Baseline, Day 11

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (lower limit of quantification \[LLOQ\] = 12 international unit per milliliter \[IU/mL\]). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 11 for Cohort A).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 11 (Cohort A): Modified Analysis Set
Baseline, Day 11

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 11 for Cohort A).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 4 (Cohort B): Full Analysis Set
Baseline, Day 4

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as an average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 4 for Cohort B).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Day 4 (Cohort B): Modified Analysis Set
Baseline, Day 4

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Baseline value calculated as the average of screening, Day 0 and Day 1 (0 hour) measurements. Change from baseline in plasma log10 HCV RNA was calculated for all participants after the last day of dosing (Day 4 for Cohort B).

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Nadir: Full Analysis Set
Baseline, Nadir (lowest HCV RNA level), assessed up to Day 11 for Cohort A and Day 4 for Cohort B

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Change from baseline in plasma Log10 HCV RNA at nadir signified the maximum change observed during the study.

Change From Baseline in Plasma Log10 Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) at Nadir: Modified Analysis Set
Baseline, Nadir (lowest HCV RNA level), assessed up to Day 11 for Cohort A and Day 4 for Cohort B

Plasma HCV RNA levels were quantified using the Abbott RealTime HCV assay (LLOQ = 12 IU/mL). Change from baseline in plasma Log10 HCV RNA at nadir signified the maximum change observed during the study.

Secondary Endpoints
Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau)
Predose, 0.5, 1, 2, 6, 8, 12 hours (hrs) postdose on Day 1 for Cohort A and B, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12 hrs post-evening dose on Day 3 for Cohort B, predose, 0.5, 1, 2, 4, 8, 12 hrs postdose on Day 10 for Cohort A
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Predose, 0.5, 1, 2, 6, 8, 12, 14 hrs postdose on Day 1 for Cohort A, B, pre-morning dose, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12, 24, 48 hrs post-evening dose on Day 3 for Cohort B, predose,0.5, 1, 2, 4, 8, 12, 24, 48 hrs postdose on Day 10 for Cohort A
Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)]
Pre-morning dose, pre-evening dose, 0.5, 1, 2, 4, 6, 8, 12, 24, 48 hrs post-evening dose on Day 3 for Cohort B, predose,0.5, 1, 2, 4, 8, 12, 24, 48 hrs postdose on Day 10 for Cohort A
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort BEXPERIMENTAL -
Cohort AEXPERIMENTALDose study drug in subjects who have previously failed to respond to interferon based therapies
Interventions
NameTypeDescription
Small Molecule Agent (PF-868554)DRUGStudy drug will be administered 700mg BID in the fed state for three days.
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: HCV Positive With HCV RNA\>100,000 iu/ml Genotype 1; COHORT A- non responders or partial Exclusion Criteria: HIV HBV co-infection Decompensated liver disease Liver disease due to causes other than HCV, AFP\>200ng/ml

Countries:United States
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