#EULAR2025 Abstr#POS1293 Our cohort study support non-medical switch from Rituximab originator to Biosimilar(RTX-B) or btw RTX-Bs in connective tissue disease. No difference in response/B-cell depletion pre- & post-switch.Only 10% stopped RTX at 5-year.Better than in RA @RheumNow https://t.co/ERPgwQ3gZB