The overall objective of this proposal is to identify patients with Rheumatoid Arthritis-Interstitial Lung Disease (RA-ILD) that are at the highest risk for progressive disease at the time of diagnosis. Our central hypothesis is that novel quantitative imaging and specific blood markers will be associated with progressive RA-ILD. Approximately 80 subjects will be enrolled from MUSC and participation with last up to 2 years.

This study will see if the experimental medicine MTX-463 can slow or stop idiopathic pulmonary fibrosis (IPF) from worsening in people at least 40 years of age or older. Participants will receive either MTX-463 or a placebo (which contains no active drug) through an intravenous infusion once every 4 weeks, for a total of 6 infusions. Overall, participants will attend a total of 9 visits over the course of approximately 32 weeks, or roughly 8 months.

The purpose of this study is to learn more about interstitial lung disease through collection of information and blood samples to be used in future research projects. Basic information and a blood sample will be collected in conjunction with clinical care for this study, approximately every 3 months.