Lupus Research Institute Highly Encouraged by Benlysta™ Trial Results

First Phase 3 Lupus Drug Trial in Decades to Show Effectiveness

July 20, 2009 — The Lupus Research Institute (LRI) and its National Coalition of state and local organizations congratulate Human Genome Sciences (HGS) and GlaxoSmithKline on the highly promising results of this landmark clinical trial of Benlysta™ (belimumab) for people with systemic lupus.

“We are very hopeful that we now are strongly on our way to the first new treatment for lupus in 50 years,” said LRI President, Margaret G. Dowd. “We look forward to the impact that a new drug for lupus will have on the lives of the 1.5 million Americans, and millions more worldwide, who suffer from this devastating autoimmune illness.”

“This is a major advance for patients, families, and physicians—the entire lupus community!” said Richard Furie, MD, chief of the division of rheumatology and allergy-clinical rheumatology at North Shore-LIJ Health System in New York. “There is no doubt that a drug approval will foster further drug development and additional discoveries.”