Phase 3 GATTEX™ Results Presented at Annual Digestive Disease Week Congress Highlight Potential New Treatment in Short Bowel Syndrome

Business Wire, May 19, 2008

About NPS Pharmaceuticals

NPS Pharmaceuticals is developing specialty therapeutics for gastrointestinal and endocrine disorders with high unmet medical need. The company is currently advancing two late-stage programs. Teduglutide, a proprietary analog of GLP-2, is in Phase 3 clinical development for intestinal failure associated with short bowel syndrome as GATTEX[TM] and in preclinical development for gastrointestinal mucositis and necrotizing enterocolitis. NPSP558 (parathyroid hormone 1-84 [rDNA origin] injection) is in Phase 2 clinical development as a hormone therapy for hypoparathyroidism. NPS complements its proprietary programs with a royalty-based portfolio of products and product candidates that includes strategic partnerships with Amgen, GlaxoSmithKline, Janssen, Kirin, and Nycomed. Additional information is available at http://www.npsp.com.

Statements made in this press release, which are not historical in nature, constitute forward-looking statements for purposes of the safe harbor provided by the Private Securities Litigation Reform Act of 1995. These statements are based on the company's current expectations and beliefs and are subject to a number of factors and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. Risks associated to NPS's business include, but are not limited to, the risk of unsuccessfully executing its preclinical and clinical studies with respect to GATTEX and not gaining marketing approvals for GATTEX (teduglutide), as well as other factors expressed in NPS's periodic filings with the U.S. Securities and Exchange Commission, including its Annual Report on Form 10-K and Form 10-Qs. All information in this press release is as of the date of this release and NPS undertakes no duty to update this information.