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Three Dose Levels of CP-690,550 Monotherapy Versus Placebo, Administered Orally Twice Daily (BID) for 6 Weeks

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ClinicalTrials.gov Identifier: NCT00147498
Recruitment Status : Completed
First Posted : September 7, 2005
Results First Posted : January 30, 2013
Last Update Posted : January 30, 2013
Sponsor:
Information provided by (Responsible Party):
Pfizer

Tracking Information
First Submitted Date  ICMJE September 2, 2005
First Posted Date  ICMJE September 7, 2005
Results First Submitted Date  ICMJE November 19, 2012
Results First Posted Date  ICMJE January 30, 2013
Last Update Posted Date January 30, 2013
Study Start Date  ICMJE January 2005
Actual Primary Completion Date June 2006   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: December 20, 2012)
Percentage of Participants Achieving American College of Rheumatology 20% (ACR20) Response at Week 6 [ Time Frame: Week 6 ]
ACR20 response: greater than or equal to (>=) 20 percent (%) improvement in tender joints count (TJC); >= 20% improvement in swollen joints count (SJC); and >= 20% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the Health Assessment Questionnaire [HAQ]); and C-Reactive Protein (CRP).
Original Primary Outcome Measures  ICMJE
 (submitted: September 2, 2005)
The American College of Rheumatology 20 (ACR 20) Responder rate at Week 6
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: December 20, 2012)
  • Percentage of Participants Achieving American College of Rheumatology 20% (ACR20) Response [ Time Frame: Week 1, 2, 4, and 8 ]
    ACR20 response: >=20% improvement in TJC; >= 20% improvement in SJC; and >= 20% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the HAQ); and CRP.
  • Percentage of Participants Achieving American College of Rheumatology 50% (ACR50) Response [ Time Frame: Week 1, 2, 4, 6, and 8 ]
    ACR50 response: >= 50% improvement in TJC or SJC and 50% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the HAQ); and CRP.
  • Percentage of Participants Achieving American College of Rheumatology 70% (ACR70) Response [ Time Frame: Week 1, 2, 4, 6, and 8 ]
    ACR70 response: >= 70% improvement in TJC or SJC and 70% improvement in at least 3 of 5 remaining ACR core measures: participant assessment of pain; participant global assessment of disease activity; physician global assessment of disease activity; self-assessed disability (disability index of the HAQ); and CRP.
  • Area Under the Numeric Index of American College of Rheumatology Response (ACR-n) Curve [ Time Frame: Baseline up to Week 6 ]
    ACR-n: calculated by taking the lowest percentage improvement in (1) SJC or (2) TJC or (3) the median of the remaining 5 components of the ACR response (participant's assessment of disease activity; participant's global assessment of pain; physician's assessment of disease activity; participant's assessment of physical function; an acute phase reactant value - CRP). Negative numbers indicate worsening. The area under the curve (AUC) for ACR-n is the measure of the AUC of the mean change from baseline in ACR-n. The trapezoidal rule was used to compute the AUC.
  • Tender Joints Count (TJC) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Number of tender joints was determined by examining 68 joints and identified the joints that were painful under pressure or to passive motion. The number of tender joints was recorded on the joint assessment form at each visit, no tenderness = 0, tenderness = 1.
  • Change From Baseline in Tender Joints Count (TJC) at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Number of tender joints was determined by examining 68 joints and identified the joints that were painful under pressure or to passive motion. The number of tender joints was recorded on the joint assessment form at each visit, no tenderness = 0, tenderness = 1. A negative value in change from baseline indicated an improvement.
  • Swollen Joints Count (SJC) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Number of swollen joints was determined by examination of 66 joints and identifying when swelling was present. The number of swollen joints was recorded on the joint assessment form at each visit, no swelling = 0, swelling =1.
  • Change From Baseline in Swollen Joints Count (SJC) at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Number of swollen joints was determined by examination of 66 joints and identifying when swelling was present. The number of swollen joints was recorded on the joint assessment form at each visit, no swelling = 0, swelling =1. A negative value in change from baseline indicates an improvement.
  • Patient Global Assessment (PtGA) of Arthritis [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Participants answered: "Considering all the ways your arthritis affects you, how are you feeling today?" Participants responded by using a 0 - 100 millimeter (mm) Visual Analog Scale (VAS) where 0 mm = very well and 100 mm = very poorly.
  • Change From Baseline in Patient Global Assessment (PtGA) of Arthritis at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Participants answered: "Considering all the ways your arthritis affects you, how are you feeling today?" Participants responded by using a 0 - 100 mm VAS, where 0 mm = very well and 100 mm = very poorly.
  • Physician Global Assessment of Arthritis [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Physician Global Assessment of Arthritis was measured on a 0 to 100 mm VAS, where 0 mm = very good and 100 mm = very bad.
  • Change From Baseline in Physician Global Assessment of Arthritis at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Physician Global Assessment of Arthritis was measured on a 0 to 100 mm VAS, where 0 mm = very good and 100 mm = very bad.
  • Patient Assessment of Arthritis Pain [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Participants rated the severity of arthritis pain on a 0 to 100 mm VAS, where 0 mm = no pain and 100 mm = most severe pain.
  • Change From Baseline in Patient Assessment of Arthritis Pain at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Participants rated the severity of arthritis pain on a 0 to 100 mm VAS, where 0 mm = no pain and 100 mm = most severe pain.
  • Health Assessment Questionnaire-Disability Index (HAQ-DI) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    HAQ-DI: participant-reported assessment of ability to perform tasks in 8 categories of daily living activities: dress/groom; arise; eat; walk; reach; grip; hygiene; and common activities over past week. Each item scored on 4-point scale from 0 to 3: 0=no difficulty; 1=some difficulty; 2=much difficulty; 3=unable to do. Overall score was computed as the sum of domain scores and divided by the number of domains answered. Total possible score range 0-3 where 0 = least difficulty and 3 = extreme difficulty.
  • Change From Baseline in Health Assessment Questionnaire-Disability Index (HAQ-DI) at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    HAQ-DI: participant-reported assessment of ability to perform tasks in 8 categories of daily living activities: dress/groom; arise; eat; walk; reach; grip; hygiene; and common activities over past week. Each item scored on 4-point scale from 0 to 3: 0=no difficulty; 1=some difficulty; 2=much difficulty; 3=unable to do. Overall score was computed as the sum of domain scores and divided by the number of domains answered. Total possible score range 0-3 where 0 = least difficulty and 3 = extreme difficulty.
  • C-Reactive Protein (CRP) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    The test for CRP is a laboratory measurement for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. Normal range of CRP is 0 milligram per liter (mg/L) to 100 mg/L. A decrease in the level of CRP indicates reduction in inflammation and therefore improvement.
  • Change From Baseline in C-Reactive Protein (CRP) at Week 1, 2, 4, 6 and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    The test for CRP is a laboratory measurement for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. Normal range of CRP is 0 mg/L to 100 mg/L. A decrease in the level of CRP indicates reduction in inflammation and therefore improvement.
  • Disease Activity Score Using 28-Joints Count and C-Reactive Protein (3 Variables) (DAS28-3 [CRP]) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    DAS28-3 (CRP) was calculated from the SJC and TJC using the 28 joints count and CRP (mg/L). Total score ranging 0 to 9.4; higher scores indicated greater affectation due to disease activity. DAS 28-3 (CRP) less than or equal to (<=) 3.2 implied low disease activity and greater than (>) 3.2 to 5.1 implied moderate to high disease activity, and less than (<) 2.6 = remission.
  • Change From Baseline in Disease Activity Score Using 28-Joints Count and C-Reactive Protein (3 Variables) (DAS28-3 [CRP]) at Week 1, 2, 4, 6, and 8 [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    DAS28-3 (CRP) was calculated from the SJC and TJC using the 28 joints count and CRP (mg/L). Total score ranging 0 to 9.4; higher scores indicated greater affectation due to disease activity. DAS 28-3 (CRP) <=3.2 implied low disease activity and >3.2 to 5.1 implied moderate to high disease activity, and <2.6 = remission.
  • Number of Participants With Categorization of Disease Improvement Based on DAS28-3 (CRP) [ Time Frame: Baseline, Week 1, 2, 4, 6, and 8 ]
    Disease improvement was classified as good, moderate, and no change based on improvement in DAS 28-3 (CRP) from baseline and present DAS 28-3 (CRP) score. Good: an improvement from baseline of >1.2 and a present score of <=3.2; none: an improvement of <=0.6 or >0.6 to <=1.2 with a present score of >5.1; remaining participants were classified as having moderate improvement. Scores of good and moderate were considered to have therapeutic response.
Original Secondary Outcome Measures  ICMJE
 (submitted: September 2, 2005)
The American College of Rheumatology 20, 50 and 70 (ACR 20, 50 and 70) Responder rates at Weeks 1, 2, 4, 6 (except for the ACR 20) and 8
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Three Dose Levels of CP-690,550 Monotherapy Versus Placebo, Administered Orally Twice Daily (BID) for 6 Weeks
Official Title  ICMJE A Phase 2a, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study To Compare 3 Dose Levels Of CP-690,550 Versus Placebo, Administered Orally Twice Daily (BID) For 6 Weeks, In The Treatment Of The Signs And Symptoms Of Subjects With Active Rheumatoid Arthritis
Brief Summary The study's objective is to compare the efficacy of 3 dose levels of oral CP-690,550 monotherapy (5 mg, 15 mg, and 30 mg twice daily [BID]) versus placebo administered over 6 weeks for the treatment of the signs and symptoms of subjects with active rheumatoid arthritis (RA).
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Condition  ICMJE Rheumatoid Arthritis
Intervention  ICMJE
  • Drug: CP-690,550
    Oral tablets administered at a dose of 5 mg BID for 6 weeks
  • Drug: CP-690,550
    Oral tablets administered at a dose of 15 mg BID for 6 weeks
  • Drug: CP-690,550
    30 mg BID for 6 weeks
  • Other: Placebo
    Placebo tablets
Study Arms  ICMJE
  • Experimental: 5 mg BID
    CP 690,550 5 mg BID
    Intervention: Drug: CP-690,550
  • Experimental: 15 mg BID
    CP 690,550 15 mg BID
    Intervention: Drug: CP-690,550
  • Experimental: 30 mg BID
    Oral tablets administered at a dose of 30 mg BID for 6 weeks
    Intervention: Drug: CP-690,550
  • Placebo Comparator: Placebo
    Placebo
    Intervention: Other: Placebo
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: November 7, 2012)
264
Original Enrollment  ICMJE
 (submitted: September 2, 2005)
312
Actual Study Completion Date  ICMJE June 2006
Actual Primary Completion Date June 2006   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • The subject has a history of inadequate response to at least 1, but no more than 4, of the following DMARDs: sulfasalazine, injectable gold, methotrexate, leflunomide, cyclosporine, or a thiopurine derivative (azathioprine or 6-mercaptopurine)

Exclusion Criteria:

  • Current Therapy With Any DMARD Or Biologic
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 70 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE Belgium,   Brazil,   Canada,   Germany,   Italy,   Mexico,   Slovakia,   Spain,   United States
Removed Location Countries Austria
 
Administrative Information
NCT Number  ICMJE NCT00147498
Other Study ID Numbers  ICMJE A3921019
Has Data Monitoring Committee No
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Current Responsible Party Pfizer
Original Responsible Party Not Provided
Current Study Sponsor  ICMJE Pfizer
Original Study Sponsor  ICMJE Same as current
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Study Director: Pfizer CT.gov Call Center Pfizer
PRS Account Pfizer
Verification Date December 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP