No single blood test or physical finding alone can confirm the diagnosis of rheumatoid arthritis (RA). However, two tests that detect markers of inflammation are often ordered when RA is suspected: erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP). Other common tests include rheumatoid factor and anti-CCP antibodies.
RA patients in the United States
While the test results are clearly valuable to the requesting physician to inform diagnostic decisions, sponsors can also leverage this information to support patient recruitment in an increasingly competitive space. We recently evaluated how de-identified patient data from these common tests run by LabCorp can support sponsors’ clinical trials in rheumatoid arthritis. Continue reading
A recent study by Tufts Center for the Study of Drug Development, based on a survey of 2,000 physicians and nurses primarily in the United States and Europe, found that 91% of physicians feel ‘somewhat’ or ‘very’ comfortable discussing the opportunity to participate in a clinical trial with patients, but actually refer less than 0.2% of their patients into clinical trials.1 In conjunction, more than 80% of patients say they are willing to participate in clinical research studies, but only around 10% actually do so.2 It is further reported that while 85% of patients are generally comfortable presenting any clinical research information they find to their doctor, only 17% have actually done so.3 And what of those patients that are interested in participating in a clinical study only to find they are ineligible? When queried on next steps after finding out he/she did not qualify, 36% stopped looking for a clinical research study to participate in.3 This latter fact is a staggering waste of potential when you consider that there are currently >130 planned or ongoing industry-sponsored Phase II-III rheumatoid arthritis (RA) studies to choose from (>210 when you consider any type of study sponsor).4