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A Study To Assess the Immune Response Following Administration Of Influenza and Pneumococcal Vaccines To Subjects With Rheumatoid Arthritis Receiving CP-690,550 Or Placebo

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.
 
ClinicalTrials.gov Identifier: NCT01359150
Recruitment Status : Completed
First Posted : May 24, 2011
Results First Posted : March 29, 2013
Last Update Posted : March 29, 2013
Sponsor:
Information provided by (Responsible Party):
Pfizer

Study Description
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Brief Summary:
A Randomized, Double Blind, Placebo Controlled Phase 2 Study To assess the Immune Response Following Administration of Influenza and Pneumococcal Vaccines to Subjects with Rheumatoid Arthritis receiving CP-690,550 with and Without background Methotrexate

Condition or disease Intervention/treatment Phase
Rheumatoid Arthritis Drug: CP-690,550 Drug: placebo Phase 2

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 223 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment
Official Title: A Randomized, Double Blind, Placebo Controlled Phase 2 Study To Assess The Immune Response Following Administration Of Influenza And Pneumococcal Vaccines To Subjects With Rheumatoid Arthritis Receiving Cp-690,550 Or Placebo Cp-690,550 With And Without Background Methotrexate
Study Start Date : September 2011
Actual Primary Completion Date : February 2012
Actual Study Completion Date : February 2012

Resource links provided by the National Library of Medicine


Arms and Interventions
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Arm Intervention/treatment
Experimental: Treatment Group 1: 10 mg BID CP-690,550 (100 subjects).
CP-690,550 will be administered for 4 weeks, vaccines will be administered at week 4. CP-690,550 will then continue for another 5 weeks at which point the immune response will be evaluated.
 Drug: CP-690,550
Treatment Group 1: 10 mg BID CP-690,550 (100 subjects). Strata 1: 10 mg BID CP-690,550 on background methotrexate (50 subjects); Strata 2: 10 mg BID CP-690,550 monotherapy (50 subjects).
Placebo Comparator: Treatment Group 2:Placebo CP-690,550 (100 subjects).
Placebo will be administered for 4 weeks, vaccines will be administered at week 4. Placebo will then continue for another 5 weeks at which point the immune response will be evaluated.
 Drug: placebo
Placebo CP-690,550 (100 subjects). Strata 1: Placebo CP-690,550 on background methotrexate (50 subjects); Strata 2: Placebo CP-690,550 monotherapy (50 subjects). Influenza and pneumococcal vaccines will be administered to all subjects


Outcome Measures
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Primary Outcome Measures :
  1. Percentage of Participants With Satisfactory Humoral Response to the Pneumococcal Vaccine at Visit 3 (Day 64) [ Time Frame: Day 64 (End of Study [EOS]) ]
    Satisfactory humoral response to the pneumococcal vaccine was defined as greater than or equal to (>=) 2 fold increase in antibody concentrations from vaccination baseline (Day 29) in at least 6 of 12 pneumococcal antigens (1, 3, 4, 5, 6B, 7F, 9V, 14, 19A, 19F, 23F, 18C). Data was stratified by the background methotrexate use.

  2. Percentage of Participants With Satisfactory Humoral Response to the Seasonal Influenza Vaccine at Visit 3 (Day 64) [ Time Frame: Day 64 (EOS) ]
    Satisfactory humoral response to the influenza vaccine was defined as >= 4 fold increase in antibody titers from vaccination baseline (Day 29) in at least 2 of 3 influenza antigens (B, H1N1, H3N2). Data was stratified by the background methotrexate use.


Secondary Outcome Measures :
  1. Percentage of Participants Who Responded to Each of the 12 Pneumococcal Antigens [ Time Frame: Day 64 (EOS) ]
    Response to the pneumococcal vaccine (seroconversion) was defined as >= 2 fold increase in antibody concentrations from vaccination baseline (Day 29) in each of the 12 pneumococcal antigens (1, 3, 4, 5, 6B, 7F, 9V, 14, 19A, 19F, 23F, 18C). Data was stratified by the background methotrexate use.

  2. Percentage of Participants Who Responded to Each of the 3 Influenza Antigens [ Time Frame: Day 64 (EOS) ]
    Response to the influenza vaccine (seroconversion) was defined as >= 4 fold increase in antibody titers from vaccination baseline (Day 29) in each of 3 influenza antigens (B, H1N1, H3N2). Data was stratified by the background methotrexate use.

  3. Percentage of Participants With Protective Antibody Titers to the Seasonal Influenza Vaccine [ Time Frame: Day 64 (EOS) ]
    Seroprotection was defined as achieving protective antibody titers to the influenza vaccine as measured by a hemagglutination inhibition (HAI) assay titer of >= 1:40 in at least 2 of 3 influenza antigens (B, H1N1, H3N2). Data was stratified by the background methotrexate use.

  4. Geometric Mean Fold Rise (GMFR) of Anti-Pneumococcal Antibody Levels to Each of the 12 Pneumococcal Antigens Above Vaccination Baseline Values (Day 29) [ Time Frame: Day 64 (EOS) ]
    Geometric mean fold rises (GMFRs) for the 12 pneumococcal antigens (1, 3, 4, 5, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F) from pre-vaccination (Day 29) to Day 64 (Day 35 post-vaccination) were computed using the logarithmically transformed assay results. Confidence intervals (CIs) for GMFR are back transformations of a CI based on the Student t-distribution for the mean logarithm of the titers. Data was stratified by the background methotrexate use.

  5. Geometric Mean Fold Rise (GMFR) of Anti-Influenza Antibody Levels to Each of the Influenza Antigens Above Vaccination Baseline Values (Day 29) [ Time Frame: Day 64 (EOS) ]
    GMFRs for the 3 influenza antigens (B, H1N1, H3N2) from pre-vaccination (Day 29) to Day 64 (Day 35 post-vaccination) were computed using the logarithmically transformed assay results. CIs for GMFR are back transformations of a CI based on the Student t-distribution for the mean logarithm of the titers. Data was stratified by the background methotrexate use.

  6. Geometric Mean Concentrations (GMC) of Anti-Pneumococcal Antibody [ Time Frame: Day 64 (EOS) ]
    Antibody geometric mean concentration (GMC) for 12 pneumococcal antigens (1, 3, 4, 5, 6B, 7F, 9V, 14, 19A, 19F, 23F, 18C) as measured by geometric mean of three independent determinations of the antibody response of that antigen. GMC and corresponding 2-sided 95% confidence intervals (CI) were evaluated.

  7. Geometric Mean Titer (GMT) of Anti-Influenza Antibody [ Time Frame: Day 64 (EOS) ]
    Antibody geometric mean titer (GMT) for 3 influenza antigens antigens (B, H1N1, H3N2) as measured by geometric mean of three independent determinations of the antibody response of that antigen. GMT and corresponding 2-sided 95% confidence intervals (CI) were evaluated.


Eligibility Criteria
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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • The subject must meet the American College of Rheumatology (ACR) classification criteria for the diagnosis of RA by satisfying at least four of the seven criteria.
  • The subject must have active disease at both screening and baseline

Exclusion Criteria:

  • History of any documented influenza or pneumococcal infection within the last 3 months.
  • Receipt of any vaccine within 1 month prior to the initial study drug administration (CP-690,550 or placebo CP-690,550).
  • If a subject has received an influenza vaccine within 6 months or a pneumococcal vaccine within 5 years of initial study drug administration.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01359150


Locations
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Sponsors and Collaborators
Pfizer
Investigators
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Study Director: Pfizer CT.gov Call Center Pfizer
More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT01359150    
Other Study ID Numbers: A3921129
First Posted: May 24, 2011    Key Record Dates
Results First Posted: March 29, 2013
Last Update Posted: March 29, 2013
Last Verified: February 2013
Additional relevant MeSH terms:
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Arthritis
Arthritis, Rheumatoid
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Connective Tissue Diseases
Autoimmune Diseases
 Immune System Diseases
Tofacitinib
Janus Kinase Inhibitors
Protein Kinase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action