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A Study To Estimate The Amount Of CP-690,550 (Study Drug) That Is Absorbed Into The Blood Of Healthy Subjects Following Oral Administration Of CP-690,550 In Tablet Form

This study has been completed.
Information provided by:
Pfizer Identifier:
First received: June 9, 2010
Last updated: August 6, 2010
Last verified: August 2010
In this study, a 10 mg dose of CP-690,550 will be given to study subjects on two separate occasions by two different routes of administration: One time by mouth in tablet form and one time by vein (intravenous form). The amount of CP-690,550 available in the blood following administration by vein will be measured and is expected to reflect the maximum amount possible for the 10 mg CP-690,550 dose. The amount of CP-690,550 that is achieved in the blood following oral tablet administration will also be measured and compared to that achieved following administration by vein in order to estimate how much of the maximum amount possible is actually absorbed into the blood following administration by mouth as a tablet.

Condition Intervention Phase
Drug: Tasocitinib 10 mg oral tablet
Drug: Tasocitinib 10 mg IV Infusion
Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Open Label
Official Title: A Phase 1, Open Label, Single Dose, Randomized, Cross Over Study To Estimate The Absolute Oral Bioavailability Of CP-690,550 In Healthy Subjects

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • AUCinf of tasocitinib (CP 690,550) [ Time Frame: PK blood samples out to 12 hours post dose ]

Secondary Outcome Measures:
  • AUClast, Cmax, Tmax, and t½, CL (IV dose only) and Vss (IV dose only) of tasocitinib (CP 690,550). [ Time Frame: PK blood samples out to 12 hours postdose ]
  • Safety Laboratory tests: hematology, chemistry, urine testing [ Time Frame: Safety Laboratory testing performed out to 2 days post last dose ]
  • Vital Signs: Blood pressure, heart rate, oral temperature [ Time Frame: Vital signs out to 2 days post last dose ]
  • AE Reporting [ Time Frame: Throughout study ]

Enrollment: 12
Study Start Date: July 2010
Study Completion Date: August 2010
Primary Completion Date: August 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Treatment A: Tasocitinib 10 mg oral tablet Drug: Tasocitinib 10 mg oral tablet
Treatment A: Single-dose of tasocitinib (CP-690,550) (10 mg) in the form of an oral tablet
Experimental: Treatment B: Tasocitinib 10 mg IV Infusion Drug: Tasocitinib 10 mg IV Infusion
Treatment B: Single-dose of tasocitinib (CP-690,550) (10 mg) in the form of a 30 minute intravenous infusion

Detailed Description:
To estimate the absolute bioavailability of a 10 mg oral dose of tasocitinib (CP-690,550) compared to a 10 mg intravenous dose of tasocitinib (CP-690,550) in healthy subjects.

Ages Eligible for Study:   21 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy male and/or female (non childbearing potential)
  • Subjects between the ages of 21 and 55 years, inclusive
  • Body Mass Index (BMI) of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lbs)
  • No evidence of active or latent or inadequately treated infection with Mycobacterium tuberculosis (TB)

Exclusion Criteria:

  • Evidence or history of any clinically significant illness, medical condition, or disease.

    2. Evidence or history of any clinically significant infections within the past 3 months.

    3. Use of tobacco- or nicotine-containing products in excess of the equivalent of 5 cigarettes per day.

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Please refer to this study by its identifier: NCT01143805

Pfizer Investigational Site
Singapore, Singapore, 188770
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc. Identifier: NCT01143805     History of Changes
Other Study ID Numbers: A3921077
Study First Received: June 9, 2010
Last Updated: August 6, 2010

Keywords provided by Pfizer:
Absolute Bioavailability
Rheumatoid Arthritis

Additional relevant MeSH terms:
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on May 24, 2017