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PF-06305591

Phase 1

Healthy | Small molecule | Other |Pfizer, Inc.|Last Updated: Dec 3, 2013

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-BlindCONTROLLEDBiomarker
Total Trials4
Total Enrollment105
FDA Designations
No designations recorded
Clinical Trials (4)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01812265Cold Pressor Test is Used in This Study to Assess the Effect of PF-06305591 on Pain Intensity Evoked by Cold in Healthy Male SubjectsPHASE1 COMPLETED 16Jun 1, 2013Aug 1, 2013Sep 17, 20131 Belgium
NCT01776619Safety and Tolerability Study of Multiple Doses of PF-06305591PHASE1 COMPLETED 43Apr 1, 2013Nov 1, 2013Dec 3, 20131 Belgium
NCT01797796Effect Of PF-06305591 On Capsaicin And Capsaicin/Heat-Induced Neurogenic FlarePHASE1 COMPLETED 16Apr 1, 2013Jul 1, 2013Aug 20, 20131 Belgium
NCT01747941Study to Investigate the Safety, Tolerability, Pharmacokinetics of PF-06305591 in Healthy Male and Female SubjectsPHASE1 COMPLETED 30Nov 1, 2012May 1, 2013May 23, 20131 Belgium
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Study Endpoints
Primary Endpoints
Change From Baseline in Visual Analogue Scale (VAS) Score at time X, measured within a 2 minute interval
24h

Change from Baseline in 10 cm VAS pain score; 10-point pain intensity ordinal rating system: 0 = no pain, 1-3 = mild pain, 4-6 = moderate pain, 7-9 = severe pain, 10 = worst possible pain. Change = scores at observation minus score at Baseline in a 2 minute assessment.

Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)
14 days

Counts of participants who had treatment-emergent adverse events (TEAEs), defined as newly occurring or worsening after first dose. Relatedness to \[study drug\] was assessed by the investigator (Yes/No). Participants with multiple occurrences of an AE within a category were counted once within the category.

Maximum Observed Plasma Concentration (Cmax)
14 days
Area under the Concentration-Time Curve (AUC)
14 days

AUC is a measure of the serum concentration of the drug over time. It is used to characterize drug absorption.

Area Under the Curve from Time Zero to end of dosing interval (AUCtau)
14 days

AUC is a measure of the serum concentration of the drug over time interval. It is used to characterize drug absorption.

Mean blood perfusion (calculated as area under the effect curve [AUEC]) between 40 and 60 minutes post administration of capsaicin in the 3 cm x 3 cm area of capsaicin application.
1 day
Secondary Endpoints
Maximum Observed Plasma Concentration (Cmax)
24h
Area Under the Curve From Time Zero to Last Quantifiable Concentration [AUC (0-t)]
24h
Mean blood perfusion (calculated as AUEC), between 40 and 60 minutes post administration of capsaicin in the 12 cm x 5 cm area of laser Doppler scanning.
1 day
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelCROSSOVER
PurposeBASIC_SCIENCE
Treatment Arms
ArmTypeDescription
PF-06305591 Dose 1EXPERIMENTAL -
PF-06305591 Dose 2EXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
Multiple Dose: Cohort 1EXPERIMENTAL -
Multiple Dose: Cohort 2EXPERIMENTAL -
Multiple Dose: Cohort 3EXPERIMENTAL -
Multiple Dose: Cohort 4EXPERIMENTAL -
Relative Bioavilability: Cohort 1EXPERIMENTAL -
PF-06305591EXPERIMENTAL -
Cohort 1EXPERIMENTALSingle ascending oral doses in fasted conditions
Cohort 2EXPERIMENTALSingle ascending oral doses in fasted conditions
Cohort 3EXPERIMENTALSingle ascending oral doses in fed conditions
Interventions
NameTypeDescription
PF-06305591DRUGsingle Dose
PlaceboDRUGSingle Dose
Capsaicin challengeOTHER110 mg capsaicin cream (Axsain®) will be applied topically at each visit.
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Eligibility Criteria
Age Range18 Years — 55 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy male subjects between the ages of 18 and 55 years, inclusive. Healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG and clinical l...

Countries:Belgium
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