This post-hoc analysis by Baraliakos, et al. found a response in short-term index studies was maintained in the long-term OLE studies, and where no response occurred in the index studies, continued treatment led to a response in a large proportion of patients.

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May 2015

Mean increases from baseline in patient serum creatinine (SCr) levels have been observed in the clinical development programme for the JAK inhibitor tofacitinib. These increases predominantly occurred within the first three months, and reversed with tofacitinib withdrawal.

This phase 1, randomised, placebo-controlled, parallel-group, 2-period study assessed changes in measured glomerular filtration rate (mGFR) with tofacitinib, relative to placebo, in 148 patients with active RA. Result...