UPDATE 1-U.S. FDA approves NPS drug, in move validating Shire takeover deal
January 23, 2015 at 19:39 PM EST
Jan 23 (Reuters) - The U.S. Food and Drug Administration has approved NPS Pharmaceuticals Inc's drug Natpara to treat a rare hormone disorder, validating a bet by Shire Plc , which recently agreed to acquire NPS for $5.2 billion.