The current study is the first clinical trial proposed with PF-05221304. It is designed to evaluate the safety, tolerability, and pharmacokinetics (PK) following administration of single and repeated doses of PF-05221304 to healthy adult subjects. The study may also evaluate effect of food on PK of PF-05221304.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Enrollment
96
Single or repeated, escalating dose of PF-05221304
single or repeated dose of placebo
New Haven Clinical Research Unit
New Haven, Connecticut, United States
Part 1: Number of Subjects experiencing an Adverse Event
Assessment by adverse event monitoring, 12 lead ECGs, telemetry, vital signs and clinical safety laboratory measurements. Treatment-related AE was any untoward medical occurrence attributed to study drug in a subject who received study drug. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. Relatedness to Drug was assessed by the investigator (Yes/No). Subjects with multiple occurrences of an AE within a category were counted once within the category.
Time frame: Screening up to 28 days after last dose of study medication
Part 2: Number of Subjects experiencing an Adverse Event
Assessment by adverse event monitoring, 12 lead ECGs, telemetry, vital signs and clinical safety laboratory measurements. Treatment-related AE was any untoward medical occurrence attributed to study drug in a subject who received study drug. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. Relatedness to Drug was assessed by the investigator (Yes/No). Subjects with multiple occurrences of an AE within a category were counted once within the category.
Time frame: Screening up to 28 days after last dose of study medication
Part 3: Maximum Observed Plasma Concentration (Cmax) for PF-05221304
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
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Part 3: Time to Reach Maximum Observed Concentration for PF-05221304
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 3: Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for PF-05221304
Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 3: Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0- infinity)] for PF-05221304 (as permitted)
AUC (0-infinity)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-infinity). It is obtained from AUC (0-t) plus AUC (t-infinity).
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 3: Plasma Decay Half-Life (t1/2) for PF-05221304 (as permitted)
Plasma Decay Half-Life (t1/2)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 3: Apparent Total Body Clearance (CL/F) for PF-05221304 (as permitted)
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after apparent total body clearance is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 3: Apparent Volume of Distribution (Vz/F) for PF-05221304 (as permitted)
Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1:Maximum Observed Plasma Concentration (Cmax) for PF-05221304
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Time to Reach Maximum Observed Concentration for PF-05221304
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) for PF-05221304
Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: dose-normalized Cmax and AUClast for PF05221304
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0- infinity)] for PF-05221304 (as permitted)
AUC (0-infinity)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-infinity). It is obtained from AUC (0-t) plus AUC (t-infinity).
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Plasma Decay Half-Life (t1/2) for PF-05221304 (as permitted)
Plasma Decay Half-Life (t1/2)
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Apparent Total Body Clearance (CL/F) for PF-05221304 (as permitted)
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after apparent total body clearance is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 1: Apparent Volume of Distribution (Vz/F) for PF-05221304 (as permitted)
Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.
Time frame: 0, 0.5, 1, 2, 3, 4, 5, 8, 12, 16, 24, 36, and 48 hours post dose
Part 2: Single dose plasma parameters of Cmax for PF-05221304
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose on Day 1
Part 2: Single-dose plasma parameters of Tmax for PF-05221304
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose on Day 1
Part 2: Single-dose plasma parameters of Area Under the Curve From Time Zero to End of Dosing Interval (AUCtau) for PF-05221304
Area under the concentration curve from time 0 to end of dosing interval (AUCtau)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose on Day 1
Part 2: Multiple-dose plasma parameters of Cmax for PF-05221304
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Tmax for PF-05221304
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of AUCtau for PF-05221304
Area under the concentration curve from time 0 to end of dosing interval (AUCtau)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Minimum Observed Plasma Trough Concentration (Cmin) for PF-05221304
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of CL/F for PF-05221304
Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after apparent total body clearance is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modeling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood.
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Vz/F for PF-05221304 (as permitted)
Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, and 16 hours on Day 1 and 7, and 0 hr on Day 2, Day 4, Day 8, Day 10, Day 13, Day 15, and Day 16 post dose
Part 2: Multiple-dose plasma parameters of Peak-trough ratio (PTR) for PF-05221304
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Observed accumulation ratio for Cmax (Rac(Cmax)) for PF-05221304
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Observed accumulation ratio (Rac(AUCtau))
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, and 24 hours post dose for Day 7; (and Day 14, as permitted)
Part 2: Multiple-dose plasma parameters of Plasma Decay Half-Life (t1/2) for PF-05221304 (as permitted)
Plasma Decay Half-Life (t1/2)
Time frame: 0, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, and 16 hours on Day 1 and 7, and 0 hr on Day 2, Day 4, Day 8, Day 10, Day 13, Day 15, and Day 16 post dose
Part 3: Number of Subjects experiencing an Adverse Event
Assessment by adverse event monitoring, 12 lead ECGs, telemetry, vital signs and clinical safety laboratory measurements. Treatment-related AE was any untoward medical occurrence attributed to study drug in a subject who received study drug. Serious adverse event (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-emergent are events between first dose of study drug and up to 28 days after last dose that were absent before treatment or that worsened relative to pretreatment state. Relatedness to Drug was assessed by the investigator (Yes/No). Subjects with multiple occurrences of an AE within a category were counted once within the category.
Time frame: Screening up to 28 days after last dose of study medication