About CRS
Chronic rhinosinusitis (CRS) is a debilitating disease caused by inflammation of the paranasal sinus tissues. CRS is the 5th most common chronic illness in people under age 65 in the U.S.,1 affecting approximately 31 million people or 12.5% of the adult population.2 Direct health care costs for treatment of CRS total more than $60 billion per year in the U.S.3 CRS is also highly prevalent in Europe and Asia.
There are currently no medications approved by FDA for the treatment of CRS. None of the current treatment options offer a sustained solution for CRS, including conventional steroids and sprays, as well as endoscopic sinus surgery.