The study will be an open-label, randomized, 2-period, 2-treatment, 2-sequence, cross-over, single-dose study employing administration of two PF-02341066 formulations in the fasted state to healthy adult volunteers.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
24
A 250-mg single dose of PF-02341066 administered as 1 x 50-mg Powder-in-Capsule and 2 x 100-mg Powder-in-Capsules
A 250-mg single dose of PF-02341066 administered as 1 x 50-mg Immediate Release Tablet and 2 x 100-mg Immediate Release Tablets
Pfizer Investigational Site
New Haven, Connecticut, United States
Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast)
Area under the plasma concentration time-curve from zero (pre-dose) to the last measured concentration (AUClast).
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hours (hrs) post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Area Under the Curve From Time Zero to Extrapolated Infinite Time (AUC [0 - ∞])
AUC (0-∞) = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-∞). It is obtained from AUC (0-t) plus AUC (t-∞).
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Maximum Observed Plasma Concentration (Cmax)
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Time to Reach Maximum Observed Plasma Concentration (Tmax)
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Plasma Decay Half Life (t1/2)
Plasma decay half-life is the time measured for the plasma concentration to decrease by one half.
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Apparent Oral Clearance (CL/F)
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Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the body. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed.
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2
Apparent Volume of Distribution (Vz/F)
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 blood concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed.
Time frame: 0 (pre-dose), 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 16, 24, 36, 48, 60, 72, 84 and 96 hrs post PF-02341066 dose in period 1 and additional 168 hrs post PF-02341066 dose in period 2