Evaluation of the ReX-C System, in Patients Receiving CFTR Modulators for the Treatment of Cystic Fibrosis (CF).

Cystic fibrosis (CF) is a progressive multisystem disorder characterized by abnormalities in the transport of chloride ions in human airway epithelial cells, leading to frequent lung infections, decreased pulmonary function, inability to properly digest food and absorb essential nutrients, and complications with many organs. Patients with CF spend hours daily, in treatments required to manage their disease, including hours of physiotherapy and inhalation and treatment with many daily pills. CF treatment load heavy burden on patients and families and the inevitable consequence of these treatment demands is widespread non-adherence to therapy. CFTR modulators (trade name Kalydeco, Orkambi, Simdeco) is a highly efficient drug approved to treat CF in patients with certain mutations. It is the first drug that treats the underlying cause rather than the symptoms of the disease. It is also one of the most expensive drugs, costing over $300,000 per patient per year. Despite of its proven efficacy and approved reimbursement for certain patients, non-adherence is common among CF patients, resulting from the heavy burden of daily treatment required to manage CF disease.