Zona Health, developer of non-invasive, non-drug treatments for hypertension, announced that the U.S. Food and Drug Administration (FDA) conditionally approved an Investigational Device Exemption (IDE) for a pivotal clinical trial to evaluate the Company’s patented isometric handgrip therapy technology (ZonaRx™) for use in the treatment of resistant hypertension (high blood pressure in the presence of two or more medications), an especially dangerous disease affecting hundreds of millions of people worldwide. FDA approval of the IDE makes Zona Health’s study the first pivotal trial of isometric handgrip therapy for hypertension treatment.