Jonathan Kay, MD, is Professor of Medicine and Population and Quantitative Health Sciences and holds the Timothy S. and Elaine L. Peterson Chair in Rheumatology at the University of Massachusetts Medical School in Worcester, where he directs Clinical Research in the Division of Rheumatology. His clinical appointment is as a Physician at UMass Memorial Medical Center. Dr. Kay’s clinical interests span the spectrum of rheumatic diseases, with special interest in rheumatoid arthritis, spondyloarthropathies, and other forms of inflammatory arthritis. Over the past three decades, his clinical research has focused on nephrogenic systemic fibrosis (formerly known as nephrogenic fibrosing dermopathy), beta2 -microglobulin amyloidosis, and other rheumatologic problems of patients with chronic kidney disease. He has been a principal investigator on over 60 clinical trials of novel therapies for rheumatoid arthritis, axial spondyloarthritis, gout, and osteoarthritis. Over the past decade, he has been involved in the development of biosimilars to treat rheumatic diseases. Dr. Kay lectures internationally and is the author of more than 240 publications and book chapters.