PHASE II OPEN-LABEL EFFICACY AND SAFETY STUDY OF FIBROBLAST ACTIVATION PROTEIN α (FAP)-DIRECTED RADIOTRACER 68Ga-FAPI-46 AS A POSITRON EMISSION TOMOGRAPHY (PET) FUNCTIONAL RESPONSE BIOMARKER FOR SYSTEMIC SCLEROSIS-ASSOCIATED INTERSTITIAL LUNG DISEASE (SSC-ILD) | Arctuva