The purpose of this study in heathy people is to investigate the safety, toleration and time course of PF-03654764 in the blood, following multiple doses given once or twice daily by mouth for 10 days.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Enrollment
36
5mg orally once daily for 10 days. After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.
orally once daily for 10 days. After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.
Pfizer Investigational Site
Singapore, Singapore
safety & toleration: Adverse events, vital signs, 12 lead ECG, blood and urine safety tests, suicidality assessment using the Suicidality Tracking Scale (STS) and physical examination.
Time frame: 10 days
Plasma pharmacokinetics: Cmax, Tmax, AUCtau, t½, AUCtau (Day 10)/AUCtau (Day 1), CL/F
Time frame: 10 days
Urine pharmacokinetics: Ae24 & Ae24% (for once daily doses) or Ae12 & Ae12% (for twice daily dose) on Day 10, CLR
Time frame: 10 days
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12mg orally once daily for 10 days. After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.
orally once daily for 10 days. After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.
12mg orally twice daily on Days 1-9, and once on Day 10 After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.
oral twice daily on Days 1-9 and once on Day 10. After satisfactory review of the available safety, toleration and PK data, progression to the next dose will occur if the last dose was well tolerated. If the previous dose was not well tolerated, after review of the safety data, and discussion between the Pfizer Study Team and the Investigator, the same dose may be given again, a lower dose within the tolerated dose range may be given, or the study may be stopped. The dose increments will be based on emerging safety and toleration data, as well as plasma exposure estimates and forward predictions of PK. Nominal administered doses will not exceed 24 mg per day.