#ACR21 Abs#1225: B/L Extracell Matrix Biomarkers predict ABA response in MTX-naive, +ACPA early RA ⭐️ECM biomarkers predict SDAI remission or DAS28 w ABA+MTX vs PBO+MTX. ⭐️⬆️CTX1 biomarker predicts efficacy endpts for ABA+MTX https://t.co/7wHQefb5D4 @Rheumnow