Do you continue to utilize ESR and CRP in patients on tocilizumab?  

Yes, it is still worthwhile getting these tests. Anti-Il-6 therapy will reduce CRP and ESR values to very low levels, so when a result returns higher than expected, it may imply limited compliance with the drug. In some patients with very high CRP values at baseline, the CRP may take some time to r...

Trends and flowsheets are much more valuable than single point determinations.