Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Completed Phase 2 Interventional Results available

A Study To Evaluate The Mechanism Of Action Of CP-690,550 In Patients With Rheumatoid Arthritis

ClinicalTrials.gov ID: NCT00976599

Public ClinicalTrials.gov record NCT00976599. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 1:37 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

An Exploratory Phase 2a, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study To Assess The Pharmacodynamics Of CP-690,550, Administered Orally Twice Daily (BID) For 4 Weeks, In Subjects With Active Rheumatoid Arthritis

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

To explore the effect of CP-690,550 on blood and synovial markers in subjects with rheumatoid arthritis. To evaluate the safety, tolerability and efficacy of CP-690,550.

Study identification

NCT ID
NCT00976599
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Pfizer
Industry
Enrollment
29 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2009
Primary completion
Jun 30, 2011
Completion
Jun 30, 2011
Last update posted
Jan 8, 2013

2009 – 2011

United States locations

U.S. sites
15
U.S. states
7
U.S. cities
11
Facility City State ZIP Site status
Pfizer Investigational Site Birmingham Alabama 35205
Pfizer Investigational Site Birmingham Alabama 35209
Pfizer Investigational Site Birmingham Alabama 35216
Pfizer Investigational Site La Jolla California 92037
Pfizer Investigational Site Frederick Maryland 21702
Pfizer Investigational Site Battle Creek Michigan 49015
Pfizer Investigational Site Mayfield Village Ohio 44143
Pfizer Investigational Site Mentor Ohio 44060
Pfizer Investigational Site Willoughby Ohio 44094
Pfizer Investigational Site Dallas Texas 75231
Pfizer Investigational Site Dallas Texas 75251
Pfizer Investigational Site Mesquite Texas 75150
Pfizer Investigational Site Sunnyvale Texas 75182
Pfizer Investigational Site Seattle Washington 98104
Pfizer Investigational Site Seattle Washington 98122

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00976599, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 8, 2013 · Synced Sep 2, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00976599 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →