PO:06:093 | Clinical and ultrasound phenotyping comparison between Difficult-To-Treat Rheumatoid Arthritis (D2TRA) and non-D2TRA patients: experience from a monocentric cohort: Silvia Perrone1, Claudio Cruciani1, Silvia Mascolo1, Elisa Bellis1, Gloria Crepaldi1, Valeria Data1, Claudia Garulli1, Claudia Lomater1, Elena Marucco1, Marta Saracco1, Mariele Gatto1, Annamaria Iagnocco1. | 1Academic Rheumatology Centre, Department of Clinical and Biological Sciences, University of Turin, AO Mauriziano, Turin, Italy. Reumatismo [Internet]. 2025 Nov. 25 [cited 2026 Jun. 28];77(s1). Available from: https://www.reumatismo.org/reuma/article/view/2018