Ancillary study to the Etanercept protocol 20060104. Subjects have been asked to provide additional blood samples for further assessment.
Study Type
OBSERVATIONAL
Enrollment
50
blood draw at baseline, week 12 and week 24
To explore the correlation between pheripheral blood cell protein phosphorylation assessemnts and rheumatoid arthritis disease activity.
Time frame: week 24
Explore the correlations to etanercept clinical response (ACR and DAS scores) may also be explored.
Time frame: week 24
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