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Drug Outcome Survey for Biological Treatments in Rheumatoid Arthritis: an Observational Study (Dose) (DOSE)

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00794118
First Posted: November 19, 2008
Last Update Posted: May 16, 2012
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Pfizer
Results First Submitted: April 12, 2012  
Study Type: Observational
Study Design: Observational Model: Cohort;   Time Perspective: Prospective
Condition: Rheumatoid Arthritis
Intervention: Other: As per clinical practice

  Participant Flow
  Hide Participant Flow

Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
No text entered.

Reporting Groups
  Description
Anti-tumor Necrosis Factor (Anti-TNF) Agents Participants with rheumatoid arthritis (RA) prescribed with anti-TNF agents (etanercept, adalimumab, infliximab) as per investigator’s discretion were observed for a period of 12 months.

Participant Flow:   Overall Study
    Anti-tumor Necrosis Factor (Anti-TNF) Agents
STARTED   299 
COMPLETED   272 
NOT COMPLETED   27 
Lost to Follow-up                16 
Withdrawal by Subject                9 
Changed hospital center                2 



  Baseline Characteristics
  Hide Baseline Characteristics

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Anti-tumor Necrosis Factor (Anti-TNF) Agents Participants with rheumatoid arthritis (RA) prescribed with anti-TNF agents (etanercept, adalimumab, infliximab) as per investigator’s discretion were observed for a period of 12 months.

Baseline Measures
   Anti-tumor Necrosis Factor (Anti-TNF) Agents 
Overall Participants Analyzed 
[Units: Participants]
 299 
Age, Customized 
[Units: Participants]
 
18 to 34 years   29 
35 to 49 years   72 
50 to 64 years   133 
Greater than or equal to (>=) 65 years   65 
Gender 
[Units: Participants]
 
Female   230 
Male   69 
Percentage of participants with Disease Activity Score Based on 28-joints count (DAS28) remission [1] 
[Units: Percentage of participants]
 1.7 
[1] DAS28 calculated from the number of swollen joints (SJC) and painful joints (PJC) using the 28 joints count, the ESR and PtGA of disease activity. DAS28 <=3.2 = low disease activity, DAS28 >3.2 to 5.1 = moderate to high disease activity. A participant is considered to be in remission if they have a DAS28 <2.6.
Disease Activity Score Based on 28-joints count (DAS28) [1] 
[Units: Units on a scale]
Mean (Standard Deviation)
 5.4  (1.2) 
[1] DAS28 calculated from the SJC and PJC using the 28 joints count, the ESR and PtGA of disease activity. DAS28 <=3.2 = low disease activity, DAS28 >3.2 to 5.1 = moderate to high disease activity. Number of participants analyzed (N)=272 for this parameter.
Patient Global Assessment (PtGA) [1] 
[Units: Centimeter (cm)]
Mean (Standard Deviation)
 6.6  (2.1) 
[1] PtGA measured using a 10 cm Visual Analog Scale (VAS) ranging from 0 cm = very good to 10 cm = very bad.
Physician Global Assessment (PGA) [1] 
[Units: Cm]
Mean (Standard Deviation)
 6.1  (1.7) 
[1] PGA was measured on a 0 to 10 cm VAS, with 0 cm = no disease activity to 10 cm = worst disease activity possible.
Visual Analogue Scale for Pain (VAS-pain) [1] 
[Units: Cm]
Mean (Standard Deviation)
 6.7  (2.2) 
[1] 10 cm line (VAS) marked by participant. Intensity of pain range: 0 cm = no pain to 10 cm = worst possible pain.
C-reactive Protein (CRP) [1] 
[Units: Milligram/deciliter (mg/dL)]
Mean (Standard Deviation)
 3.3  (6.3) 
[1] CRP is a marker of inflammation. CRP value higher than 0.5 mg/dL is consistent with inflammation. Number of participants analyzed (N) = 272 for this parameter.
Erythrocyte Sedimentation Rate (ESR) [1] 
[Units: Millimeter/hour (mm/hr)]
Mean (Standard Deviation)
 32.9  (22.0) 
[1] ESR is a laboratory test that provides a non-specific measure of inflammation. The test assesses the rate at which red blood cells fall in a test tube. Normal range is 0-30 mm/hr. A higher rate is consistent with inflammation.
Rheumatoid Factor (RF) [1] 
[Units: Participants]
 
Positive   163 
Negative   118 
Not available (NA)   18 
[1] RF is the auto antibody directed against immunoglobulin G (IgG) and its concentration is observed in human serum or plasma. RF value higher than 20 unit/milliliter (U/mL) is considered positive.
Anti-cyclic Citrullinated Protein (Anti-CCP) antibodies [1] 
[Units: Participants]
 
Positive   124 
Negative   97 
NA   78 
[1] Anti-CCP antibodies are auto antibodies (antibodies directed against 1 or more of an individual’s own proteins) that are frequently detected in the blood of rheumatoid arthritis participants. Anti-CCP antibodies value higher than 10 U/mL is considered positive.
Anti-nuclear antibodies [1] 
[Units: Participants]
 
Positive   38 
Negative   170 
NA   91 
[1] Anti-nuclear antibodies are auto antibodies directed against contents of the nucleus and are present in higher than normal numbers in autoimmune disease. Anti-nuclear antibodies value higher than 1:160 is considered positive.
Anti-deoxyribonucleic Acid (Anti-DNA) antibodies [1] 
[Units: Participants]
 
Positive   6 
Negative   173 
NA   120 
[1] Anti-DNA antibodies are auto antibodies directed against DNA and are present in higher than normal numbers in autoimmune disease. Anti-DNA antibodies value higher than 1:20 is considered positive.
Duration of morning stiffness [1] 
[Units: Minutes]
Mean (Standard Deviation)
 61.8  (48.0) 
[1] Duration of morning stiffness: Time elapsed when participant woke up in morning and was able to resume normal activities without stiffness in minutes. Increase in stiffness duration from baseline represented disease progression and/or joint worsening, no change represented halting of disease progression, and a decrease represented improvement.
Stanford Health Assessment Questionnaire (HAQ) [1] 
[Units: Units on a scale]
Mean (Standard Deviation)
 1.4  (0.7) 
[1] HAQ is a measure of functional limitations. Participants were rated on 4 point scale with scores: 0=no difficulty, 1=some difficulty, 2=much difficulty, 3=unable to do based on degree of difficulty experienced with 20 tasks grouped into 8 areas of dressing, rising, hygiene, reach, walking, eating, grip and activities. Average score range: 0 to 3.
36-Item Short-Form Health Survey (SF-36) [1] 
[Units: Units on a Scale]
Mean (Standard Deviation)
 
Indice sintetico salute fisica del (ISF)   38.8  (10.6) 
Indice sintetico salute mentale del (ISM)   48.0  (13.2) 
[1] SF-36 is a standardized survey evaluating 8 aspects of functional health and well being: physical and social functioning, physical and emotional role limitations, bodily pain, general health, vitality, mental health. The score for a section is an average of the individual question scores, which are scaled 0-100 (100=highest level of functioning).
Disease duration 
[Units: Years]
Median (Inter-Quartile Range)
 5.0 
 (2.0 to 10.0) 
Number of tender joints [1] 
[Units: Tender joints]
Mean (Standard Deviation)
 11.0  (7.1) 
[1] The mean number of tender joints was evaluated based on the number of tender joints in a standard 28 joint count.
Number of swollen joints (SJC) [1] 
[Units: Swollen joints]
Mean (Standard Deviation)
 7.3  (5.3) 
[1] The mean number of swollen joints was evaluated based on the number of swollen joints in a standard 28 joint count.
Percentage of participants given Disease Modifying Anti-Rheumatoid Drugs (DMARD) 
[Units: Percentage of participants]
 98.3 


  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Percentage of Participants With Disease Activity Score Based on 28-joints Count (DAS28) Remission at Month 3   [ Time Frame: Month 3 ]

2.  Primary:   Percentage of Participants With Disease Activity Score Based on 28-joints Count (DAS28) Remission at Month 6   [ Time Frame: Month 6 ]

3.  Primary:   Percentage of Participants With Disease Activity Score Based on 28-joints Count (DAS28) Remission at Month 9   [ Time Frame: Month 9 ]

4.  Primary:   Percentage of Participants With Disease Activity Score Based on 28-joints Count (DAS28) Remission at Month 12   [ Time Frame: Month 12 ]

5.  Primary:   Disease Activity Score Based on 28-joints Count (DAS28) at Month 3   [ Time Frame: Month 3 ]

6.  Primary:   Disease Activity Score Based on 28-joints Count (DAS28) at Month 6   [ Time Frame: Month 6 ]

7.  Primary:   Disease Activity Score Based on 28-joints Count (DAS28) at Month 9   [ Time Frame: Month 9 ]

8.  Primary:   Disease Activity Score Based on 28-joints Count (DAS28) at Month 12   [ Time Frame: Month 12 ]

9.  Primary:   Patient Global Assessment (PtGA) of Disease Activity Score at Month 3   [ Time Frame: Month 3 ]

10.  Primary:   Patient Global Assessment (PtGA) of Disease Activity Score at Month 6   [ Time Frame: Month 6 ]

11.  Primary:   Patient Global Assessment (PtGA) of Disease Activity Score at Month 9   [ Time Frame: Month 9 ]

12.  Primary:   Patient Global Assessment (PtGA) of Disease Activity Score at Month 12   [ Time Frame: Month 12 ]

13.  Primary:   Physician Global Assessment (PGA) of Disease Activity at Month 3   [ Time Frame: Month 3 ]

14.  Primary:   Physician Global Assessment (PGA) of Disease Activity at Month 6   [ Time Frame: Month 6 ]

15.  Primary:   Physician Global Assessment (PGA) of Disease Activity at Month 9   [ Time Frame: Month 9 ]

16.  Primary:   Physician Global Assessment (PGA) of Disease Activity at Month 12   [ Time Frame: Month 12 ]

17.  Primary:   Visual Analogue Scale for Pain (VAS-pain) at Month 3   [ Time Frame: Month 3 ]

18.  Primary:   Visual Analogue Scale for Pain (VAS-pain) at Month 6   [ Time Frame: Month 6 ]

19.  Primary:   Visual Analogue Scale for Pain (VAS-pain) at Month 9   [ Time Frame: Month 9 ]

20.  Primary:   Visual Analogue Scale for Pain (VAS-pain) at Month 12   [ Time Frame: Month 12 ]

21.  Primary:   C-reactive Protein (CRP) at Month 3   [ Time Frame: Month 3 ]

22.  Primary:   C-reactive Protein (CRP) at Month 6   [ Time Frame: Month 6 ]

23.  Primary:   C-reactive Protein (CRP) at Month 9   [ Time Frame: Month 9 ]

24.  Primary:   C-reactive Protein (CRP) at Month 12   [ Time Frame: Month 12 ]

25.  Primary:   Erythrocyte Sedimentation Rate (ESR) at Month 3   [ Time Frame: Month 3 ]

26.  Primary:   Erythrocyte Sedimentation Rate (ESR) at Month 6   [ Time Frame: Month 6 ]

27.  Primary:   Erythrocyte Sedimentation Rate (ESR) at Month 9   [ Time Frame: Month 9 ]

28.  Primary:   Erythrocyte Sedimentation Rate (ESR) at Month 12   [ Time Frame: Month 12 ]

29.  Primary:   Number of Participants With Rheumatoid Factor (RF) at Month 3   [ Time Frame: Month 3 ]

30.  Primary:   Number of Participants With Rheumatoid Factor (RF) at Month 6   [ Time Frame: Month 6 ]

31.  Primary:   Number of Participants With Rheumatoid Factor (RF) at Month 9   [ Time Frame: Month 9 ]

32.  Primary:   Number of Participants With Rheumatoid Factor (RF) at Month 12   [ Time Frame: Month 12 ]

33.  Primary:   Number of Participants With Anti-cyclic Citrullinated Protein (Anti-CCP) Antibodies at Month 3   [ Time Frame: Month 3 ]

34.  Primary:   Number of Participants With Anti-cyclic Citrullinated Protein (Anti-CCP) Antibodies at Month 6   [ Time Frame: Month 6 ]

35.  Primary:   Number of Participants With Anti-cyclic Citrullinated Protein (Anti-CCP) Antibodies at Month 9   [ Time Frame: Month 9 ]

36.  Primary:   Number of Participants With Anti-cyclic Citrullinated Protein (Anti-CCP) Antibodies at Month 12   [ Time Frame: Month 12 ]

37.  Primary:   Number of Participants With Anti-nuclear Antibodies at Month 3   [ Time Frame: Month 3 ]

38.  Primary:   Number of Participants With Anti-nuclear Antibodies at Month 6   [ Time Frame: Month 6 ]

39.  Primary:   Number of Participants With Anti-nuclear Antibodies at Month 9   [ Time Frame: Month 9 ]

40.  Primary:   Number of Participants With Anti-nuclear Antibodies at Month 12   [ Time Frame: Month 12 ]

41.  Primary:   Number of Participants With Anti-deoxyribonucleic Acid (Anti-DNA) Antibodies at Month 3   [ Time Frame: Month 3 ]

42.  Primary:   Number of Participants With Anti-deoxyribonucleic Acid (Anti-DNA) Antibodies at Month 6   [ Time Frame: Month 6 ]

43.  Primary:   Number of Participants With Anti-deoxyribonucleic Acid (Anti-DNA) Antibodies at Month 9   [ Time Frame: Month 9 ]

44.  Primary:   Number of Participants With Anti-deoxyribonucleic Acid (Anti-DNA) Antibodies at Month 12   [ Time Frame: Month 12 ]

45.  Primary:   Duration of Morning Stiffness at Month 3   [ Time Frame: Month 3 ]

46.  Primary:   Duration of Morning Stiffness at Month 6   [ Time Frame: Month 6 ]

47.  Primary:   Duration of Morning Stiffness at Month 9   [ Time Frame: Month 9 ]

48.  Primary:   Duration of Morning Stiffness at Month 12   [ Time Frame: Month 12 ]

49.  Primary:   Stanford Health Assessment Questionnaire (HAQ) Score at Month 3   [ Time Frame: Month 3 ]

50.  Primary:   Stanford Health Assessment Questionnaire (HAQ) Score at Month 6   [ Time Frame: Month 6 ]

51.  Primary:   Stanford Health Assessment Questionnaire (HAQ) Score at Month 9   [ Time Frame: Month 9 ]

52.  Primary:   Stanford Health Assessment Questionnaire (HAQ) Score at Month 12   [ Time Frame: Month 12 ]

53.  Primary:   36-Item Short-Form Health Survey (SF-36) at Month 12   [ Time Frame: Month 12 ]

54.  Secondary:   Direct Costs   [ Time Frame: Baseline, Months 3, 6, 9 and 12 ]
Results not yet reported.   Anticipated Reporting Date:   08/2012  

55.  Secondary:   Indirect Costs   [ Time Frame: Baseline, Months 3, 6, 9 and 12 ]
Results not yet reported.   Anticipated Reporting Date:   08/2012  


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
  Hide Limitations and Caveats

Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
Protocol did not indicate primary or secondary endpoints and all determination of primary or secondary endpoints were arbitrary.


  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.


Results Point of Contact:  
Name/Title: Pfizer ClinicalTrials.gov Call Center
Organization: Pfizer, Inc.
phone: 1-800-718-1021
e-mail: ClinicalTrials.gov_Inquiries@pfizer.com



Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT00794118     History of Changes
Other Study ID Numbers: 0881A1-102321
B1801119
First Submitted: November 17, 2008
First Posted: November 19, 2008
Results First Submitted: April 12, 2012
Results First Posted: May 16, 2012
Last Update Posted: May 16, 2012