Work Productivity in Active Ankylosing Spondylitis (AS) Patients Treated With Enbrel. (AS@WORK)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Pfizer
ClinicalTrials.gov Identifier:
NCT01421303
First received: August 19, 2011
Last updated: December 5, 2014
Last verified: December 2014
  Purpose

Patients with Ankylosing spondylitis more frequently discontinue work. This study measures the impact of Enbrel on work participation.


Condition Intervention Phase
Ankylosing Spondylitis
Drug: Enbrel
Phase 4

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Work Productivity In A Cohort Of Employed Ankylosing Spondylitis Patients Treated With Etanercept

Resource links provided by NLM:


Further study details as provided by Pfizer:

Primary Outcome Measures:
  • Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism or reduced on-the-job effectiveness), overall work impairment (work productivity loss or absenteeism plus presenteeism) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.

  • Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Month 6 [ Time Frame: Month 6 ] [ Designated as safety issue: No ]
    WPAI-AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism or reduced on-the-job effectiveness), overall work impairment (work productivity loss or absenteeism plus presenteeism) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.

  • Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Month 12 [ Time Frame: Month 12 ] [ Designated as safety issue: No ]
    WPAI-AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism or reduced on-the-job effectiveness), overall work impairment (work productivity loss or absenteeism plus presenteeism) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.

  • Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Month 18 [ Time Frame: Month 18 ] [ Designated as safety issue: No ]
    WPAI-AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism or reduced on-the-job effectiveness), overall work impairment (work productivity loss or absenteeism plus presenteeism) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.

  • Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Month 24 [ Time Frame: Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism or reduced on-the-job effectiveness), overall work impairment (work productivity loss or absenteeism plus presenteeism) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.


Secondary Outcome Measures:
  • Change From Baseline in Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores at Month 6 and 24 [ Time Frame: Baseline, Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI: AS is 6-question participant rated questionnaire to determine the amount of absenteeism, presenteeism, work productivity loss and daily activity impairment attributable to ankylosing spondylitis (AS) for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity) and activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) Total Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS: 6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment attributable to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity), activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. BASDAI: validated self-assessment tool to determine disease activity in participants with AS. Utilizing a scale of 0-10 (0=none and 10=very severe), participants answered 6 questions measuring discomfort, pain, fatigue. The BASDAI total score averages the individual assessments and ranges from 0-10 (0=none, 10=very severe). Correlation coefficient between WPAI-AS and BASDAI score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) Total Score at Month 6 and Month 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS: 6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment attributable to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity), activity impairment (daily activity impairment). These sub-scores are transformed to impairment percentages (range from 0 to 100), with higher numbers indicating greater impairment and less productivity. BASDAI: validated self-assessment tool to determine disease activity in participants with AS. Utilizing a scale of 0-10 (0=none and 10=very severe), participants answered 6 questions measuring discomfort, pain, fatigue. The BASDAI total score averages the individual assessments and ranges from 0-10 (0=none, 10=very severe). Correlation coefficient between change from baseline in WPAI-AS and BASDAI score at Month 6 and 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Functional Index (BASFI) Total Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BASFI:validated self-assessment tool to determine degree of functional limitation in AS. Utilizing a scale of 0-10(0=easy, 10=impossible),participants answered 10 questions assessing ability in completing normal daily activities/physically demanding activities. BASFI total score=mean score of 10 questions (range: 0 to 10, higher score=more severity). Correlation coefficient between WPAI-AS and BASFI score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Functional Index (BASFI) Total Score at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BASFI:validated self-assessment tool to determine degree of functional limitation in AS. Utilizing a scale of 0-10(0=easy, 10=impossible),participants answered 10 questions assessing ability in completing normal daily activities/physically demanding activities. BASFI total score=mean score of 10 questions (range: 0 to 10, higher score=more severity). Correlation coefficient between change from baseline in WPAI-AS and BASFI score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Metrology Index (BASMI) Total Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BASMI is an objective measure of spinal mobility. The BASMI score is composed of 5 measures: cervical rotation, intermalleolar distance, modified Schober's test, lateral flexion and tragus to wall distance. Final score ranges from 0 to 10: the higher the BASMI score, the more severe the participant's limitation of movement due to their AS. Correlation coefficient between WPAI-AS and BASMI score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Metrology Index (BASMI) Total Score at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BASMI is an objective measure of spinal mobility. The BASMI score is composed of 5 measures: cervical rotation, intermalleolar distance, modified Schober's test, lateral flexion and tragus to wall distance. Final score ranges from 0 to 10: the higher the BASMI score, the more severe the participant's limitation of movement due to their AS. Correlation coefficient between change from baseline in WPAI-AS and BASMI score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Global Score (BAS-G) at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BAS-G is used to indicate the effect of disease on participant's well-being. This scale is composed of 2 items ranging from 0 = very good to 10 =very bad. Total score ranges from 0 to 10: the higher the BAS-G score, the worse the participant's health status. Correlation coefficient between WPAI-AS and BAS-G score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Bath Ankylosing Spondylitis Global Score (BAS-G) at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. BAS-G is used to indicate the effect of disease on participant's well-being. This scale is composed of 2 items ranging from 0 = very good to 10 =very bad. Total score ranges from 0 to 10: the higher the BAS-G score, the worse the participant's health status. Correlation coefficient between change from baseline in WPAI-AS and BAS-G score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and 36-Item Short-Form Health Survey (SF-36) Physical Component Summary (PCS) Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-item questionnaire to determine amount of absenteeism,presenteeism,work productivity loss,daily activity impairment attributable to AS during 7 days prior to each visit.It yields 4 sub-scores:work time missed(absenteeism),impairment while working(presenteeism),overall work impairment(work productivity), activity impairment(daily activity impairment).Sub-scores transformed to impairment percentages(range 0 to 100), higher numbers=greater impairment,less productivity.SF-36:standardized survey evaluating 8 aspects of functional health,well being(physical,social functioning; physical,emotional role limitations; bodily pain; general health; vitality; mental health).8 aspects summarized as PCS and mental component summary (MCS).Scores normalized to United States population to have mean=50,standard deviation=10 (norm based scoring with <50=lower level of functioning and >50=higher level of functioning). Correlation coefficient between WPAI-AS and PCS score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and 36-Item Short-Form Health Survey (SF-36) Physical Component Summary (PCS) Score at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-item questionnaire to determine amount of absenteeism,presenteeism,work productivity loss,daily activity impairment attributable to AS during 7 days prior to each visit.It yields 4 sub-scores:work time missed(absenteeism),impairment while working(presenteeism),overall work impairment(work productivity),activity impairment(daily activity impairment).Sub-scores transformed to impairment percentages(range 0 to 100),higher numbers=greater impairment,less productivity.SF-36:standardized survey evaluating 8 aspects of functional health,well being(physical,social functioning; physical,emotional role limitations; bodily pain; general health; vitality; mental health).8 aspects summarized as PCS and MCS. Scores normalized to United States population to have mean=50,standard deviation=10 (norm based scoring with <50=lower level of functioning and >50=higher level of functioning). Correlation coefficient between change from baseline in WPAI-AS and PCS score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and 36-Item Short-Form Health Survey (SF-36) Mental Component Summary Score (MCS) at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS: 6-item questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment attributable to AS during 7 days prior to each visit. It yields 4 sub-scores: work time missed (absenteeism), impairment while working (presenteeism), overall work impairment (work productivity), activity impairment (daily activity impairment). Sub-scores transformed to impairment percentages (range 0 to 100), higher numbers=greater impairment,less productivity. SF-36:standardized survey evaluating 8 aspects of functional health, well being (physical, social functioning; physical, emotional role limitations; bodily pain; general health; vitality; mental health). 8 aspects summarized as PCS and MCS. Scores normalized to United States population to have mean=50, standard deviation=10 (norm based scoring with <50=lower level of functioning and >50=higher level of functioning). Correlation coefficient between WPAI-AS and MCS score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and 36-Item Short-Form Health Survey (SF-36) Mental Component Summary Score (MCS) at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-item questionnaire to determine amount of absenteeism,presenteeism,work productivity loss,daily activity impairment attributable to AS during 7 days prior to each visit.It yields 4 sub-scores:work time missed(absenteeism),impairment while working(presenteeism),overall work impairment(work productivity), activity impairment(daily activity impairment).Sub-scores transformed to impairment percentages(range 0 to 100), higher numbers=greater impairment,less productivity.SF-36:standardized survey evaluating 8 aspects of functional health,well being(physical,social functioning; physical,emotional role limitations; bodily pain; general health; vitality; mental health).8 aspects summarized as PCS and MCS. Scores normalized to United States population to have mean=50,standard deviation=10(norm based scoring with <50=lower level of functioning and >50=higher level of functioning). Correlation coefficient between change from baseline in WPAI-AS and MCS score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Euro Quality of Life-5 Dimensions (EQ-5D) Total Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS during 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers=greater impairment, less productivity. EQ-5D:participant rated questionnaire to assess health-related quality of life in terms of single utility score. Health state profile component assesses level of current health for 5 domains: mobility,self-care,usual activities,pain/discomfort and anxiety/depression; Scale range 1 to 3 (1=better health state [no problems], 3=worst health state [confined to bed]). Correlation coefficient between WPAI-AS and EQ-5D total score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Euro Quality of Life-5 Dimensions (EQ-5D) Total Score at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS during 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers=greater impairment, less productivity. EQ-5D:participant rated questionnaire to assess health-related quality of life in terms of single utility score. Health state profile component assesses level of current health for 5 domains: mobility,self-care,usual activities,pain/discomfort and anxiety/depression; Scale range 1 to 3 (1=better health state [no problems], 3=worst health state [confined to bed]). Correlation coefficient between change from baseline in WPAI-AS and EQ-5D total score at Month 6, 24 was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Euro Quality of Life (EQ-5D) Visual Analog Scale (VAS) Score at Baseline [ Time Frame: Baseline ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single index value. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Correlation coefficient between WPAI-AS and EQ-5D VAS score at baseline was reported.

  • Correlation Between Work Productivity and Activity Impairment Questionnaire - Ankylosing Spondylitis (WPAI-AS) Scale Scores and Euro Quality of Life (EQ-5D) Visual Analog Scale (VAS) Score at Month 6 and 24 [ Time Frame: Month 6, Month 24 ] [ Designated as safety issue: No ]
    WPAI-AS:6-question participant rated questionnaire to determine amount of absenteeism, presenteeism, work productivity loss, daily activity impairment due to AS for a period of 7 days prior to each visit. It yields 4 sub-scores: work time missed(absenteeism), impairment while working(presenteeism), overall work impairment(work productivity), activity impairment(daily activity impairment). These sub-scores are transformed to impairment percentages(range 0 to 100), with higher numbers indicating greater impairment, less productivity. EQ-5D: participant rated questionnaire to assess health-related quality of life in terms of a single index value. The VAS component rates current health state on a scale from 0 (worst imaginable health state) to 100 (best imaginable health state); higher scores indicate a better health state. Correlation coefficient between change from baseline in WPAI-AS and EQ-5D VAS score at Month 6, 24 was reported.


Enrollment: 80
Study Start Date: October 2009
Study Completion Date: December 2013
Primary Completion Date: December 2013 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
AS patients who are working and treated with Enbrel Drug: Enbrel
Enbrel

Detailed Description:

Purely descriptive

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population

AS patients visiting the rheumatologist for which the decision has been taken to prescribe Enbrel

Criteria

Inclusion Criteria:

  • Active AS patients (as judged by the treating MD) who are currently employed.
  • Patients who are scheduled by their rheumatologist to initiate treatment with Etanercept.

Exclusion Criteria:

  • Patients who initiated a procedure for eligibility of work disability/pension.
  • Patients with previous use of TNF-alpha inhibitors either in commercial use, or in a study for the treatment of AS or a related spondylarthropathy condition.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01421303

Locations
Belgium
Universitair Ziekenhuis Gent
Gent, Belgium, 9000
Sponsors and Collaborators
Pfizer
Investigators
Study Director: Pfizer CT.gov Call Center Pfizer
  More Information

Additional Information:
No publications provided

Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT01421303     History of Changes
Other Study ID Numbers: 0881A3-4675, B1801053
Study First Received: August 19, 2011
Results First Received: December 5, 2014
Last Updated: December 5, 2014
Health Authority: Belgium: Institutional Review Board

Additional relevant MeSH terms:
Spondylitis
Spondylitis, Ankylosing
Ankylosis
Arthritis
Bone Diseases
Bone Diseases, Infectious
Infection
Joint Diseases
Musculoskeletal Diseases
Spinal Diseases
Spondylarthritis
Spondylarthropathies

ClinicalTrials.gov processed this record on August 26, 2015