OptiNose, Inc. is a specialized pharmaceutical company primarily focused on innovating and bringing to market treatments for individuals under the care of ear, nose, throat, and allergy specialists throughout the United States. Its flagship product, XHANCE, utilizes the company's proprietary exhalation delivery system (EDS) to administer a topically-acting corticosteroid. This therapy is approved for treating chronic rhinosinusitis when accompanied by nasal polyps and is currently undergoing Phase IIIb clinical trials for broader chronic sinusitis treatment.