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Estimate The Effect Of Repeat-Dose Rifampin On The Pharmacokinetics Of CP-690,550 In Healthy Volunteers

This study has been completed.
Information provided by:
Pfizer Identifier:
First received: September 15, 2010
Last updated: October 21, 2010
Last verified: October 2010
The current study is designed to estimate the effect of rifampin (600 mg orally every 24 hours for 7 days) on pharmacokinetics of single 30 mg dose (CP-690,550) in normal healthy volunteers

Condition Intervention Phase
Drug: Tasocitinib (CP-690,550) plus Rifampin
Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Basic Science
Official Title: A Phase 1, Open Label, Fixed-Sequence Study To Estimate The Effect Of Repeat-Dose Rifampin On The Pharmacokinetics Of CP-690,550 In Healthy Volunteers

Resource links provided by NLM:

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • AUCinf of tasocitinib (CP-690,550) [ Time Frame: 9 days ]
  • Cmax of tasocitinib (CP-690,550) [ Time Frame: 9 days ]

Secondary Outcome Measures:
  • AUClast, Tmax, t1/2 of tasocitinib (CP-690,550) [ Time Frame: 9 days ]
  • Safety: clinical laboratory abnormalities, AE reporting, and vital signs (blood pressure/pulse rate). [ Time Frame: 9 days ]

Enrollment: 12
Study Start Date: September 2010
Study Completion Date: October 2010
Primary Completion Date: October 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Tasocitinib (CP-690,550) plus Rifampin Drug: Tasocitinib (CP-690,550) plus Rifampin
Period 1, Day 1: Tasocitinib (CP-690,550) 30 mg (single oral dose) as six 5 mg tablets Period 2, Day 1-7: Rifampin 600 mg (single oral dose) q24h Period 2, Day 8: Tasocitinib (CP-690,550) 30 mg (single oral dose) as six 5 mg tablets Period 2, Day 9: No treatment (discharge)


Ages Eligible for Study:   18 Years to 55 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy male and/or female subjects (of non-childbearing potential)

Exclusion Criteria:

  • Clinically significant disease or condition
  • Recent serious infection
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01204112

United States, Connecticut
Pfizer Investigational Site
New Haven, Connecticut, United States, 06511
Sponsors and Collaborators
Study Director: Pfizer Call Center Pfizer
  More Information

Additional Information:
Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc. Identifier: NCT01204112     History of Changes
Other Study ID Numbers: A3921056
Study First Received: September 15, 2010
Last Updated: October 21, 2010

Keywords provided by Pfizer:
Drug-Drug Interaction
Tasocitinib (CP-690
Healthy Volunteers

Additional relevant MeSH terms:
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Antibiotics, Antitubercular
Antitubercular Agents
Anti-Bacterial Agents
Anti-Infective Agents
Leprostatic Agents
Nucleic Acid Synthesis Inhibitors
Cytochrome P-450 CYP2B6 Inducers
Cytochrome P-450 Enzyme Inducers
Cytochrome P-450 CYP2C8 Inducers
Cytochrome P-450 CYP2C19 Inducers
Cytochrome P-450 CYP2C9 Inducers
Cytochrome P-450 CYP3A Inducers processed this record on April 28, 2017