Ironwood Pharmaceuticals, Inc., a commercial biotech company, announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation to olinciguat (IW-1701) for the treatment of patients with sickle cell disease. Olinciguat is an orally administered soluble guanylate cyclase (sGC) stimulator. “There is an urgent need for new, innovative treatments for patients with sickle…