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CompletedNCT01277991Updated Apr 7, 2011

A Study To Compare The Amount Of CP-690,550 That Is Absorbed Into The Blood Of Healthy Subjects Following Oral Administration Of Two Different Strength Tablets Of CP-690,550

A Phase 1 interventional study of Treatment A and Treatment B in Arthritis, Rheumatoid, sponsored by Pfizer. Completed at 1 site in Singapore. Open to participants aged 21 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2011-04-07.

Sponsored by Pfizer · Phase 1 and Interventional

Phase
Phase 1
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
21 Years to 55 Years
Sex
All
01

Study summary

In this study, a 5 mg dose of CP-690,550 will be given to study subjects on two separate occasions using one of two different strength tablets each time. The amount of CP-690,550 available in the blood following administration of each tablet will be measured and compared. The overall aim of the study is to establish that a similar amount of CP-690,550 is absorbed into the blood following administration of the same dose of each different strength tablet .

Read the detailed description

This is a bioequivalence study for CP-690,550.

02

Conditions studied

  • Arthritis, Rheumatoid

Keywords

  • Bioequivalence
  • healthy volunteer study
  • Rheumatoid Arthritis
03

In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 317 are open to participants now.

This study's planned enrollment of 30 is below the median of 90 across 2,377 interventional studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

Pfizer is the lead sponsor of 3,244 studies on the registry; 139 are open to participants now.

Of its 582 completed or terminated interventional studies of FDA-regulated products, 381 (65%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
21 Years to 55 Years
Sexes eligible
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 >45 kg (99 lbs).
  • No evidence of active or latent or inadequately treated infection with Mycobacterium tuberculosis (TB).

Exclusion criteria

Exclusion Criteria:

Subjects with evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).

Personal or family history of hereditary immunodeficiency (eg, severe - Evidence of any clinically significant illness, medical condition, or disease.

  • Evidence or history of any clinically significant infections within the past 3 months.
  • Use of tobacco- or nicotine-containing products in excess of the equivalent of 5 cigarettes per day.
05

Study design

Phase
Phase 1
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    Sequence 1

    Drug: Treatment A · Drug: Treatment B

  • Experimental
    Sequence 2

    Drug: Treatment B · Drug: Treatment A

Interventions

  • DrugTreatment A

    Single oral dose of 5 mg CP-690,550 administered as five 1 mg tablets (Phase 2B tablets)

  • DrugTreatment B

    Single oral dose of 5 mg CP-690,550 administered as one 5 mg tablet (Phase 2B tablet)

  • DrugTreatment B

    Single oral dose of 5 mg CP-690,550 administered as one 5 mg tablet (Phase 2B tablet)

  • DrugTreatment A

    Single oral dose of 5 mg CP-690,550 administered as five 1 mg tablets (Phase 2B tablets)

06

What researchers measure

Primary outcomes

  1. PK parameters: AUCinf, AUClast and Cmax of CP-690,550

    Time frame: PK blood samples out to 24 hours post dose in each period

Secondary outcomes

  1. PK parameters: Tmax, AUCt and half-life of CP-690,550

    Time frame: Derived from PK blood samples out to 24 hours post dose in each period

  2. Safety: laboratory tests

    Time frame: Pre-dose on Day 0 for Period 1 and at 24 hours post last dose in each period

  3. Safety: vital signs

    Time frame: Prior to dosing in each period and at 24 hours post last dose in Period 2

  4. Safety: adverse event reporting

    Time frame: Throughout study

07

Study locations

1 site
  • Pfizer Investigational Site
    Singapore, 188770, Singapore
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References and documents

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 7, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01277991
Lead sponsor
Pfizer
First posted
Jan 17, 2011
Start date
Feb 2011
Primary completion
Mar 2011
Completion
Mar 2011
Last update
Apr 7, 2011

Study contacts

Pfizer CT.gov Call Center
study director · Pfizer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2011. You cannot join it, but the record below documents what was studied.

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