Muscle mass & JAKi? 15 active RA pts (+ sarcopenia risk) Rx w/ tofacitinib - signif. improved @1 mo. @6 mos muscle mass signif improved (+242 cm3, +4%, p=0·017) {less w/ NSAIDs); w/ signif creatinine incr (0.06 mg/dl) & decr in serum IL-6, IL-1 & TNF. No change in CK, myoglobin, https://t.co/taY7DisMOS