Identification of Predictive Epigenetic Biomarkers of Lung Disease Severity in Cystic Fibrosis

"CF patients carry a spontaneous sputum that is made in the context of bronchial drainage sessions conducted as part of usual care (inclusion, 6 months, 12 months, 18 months).~The collection of spontaneous sputum is carried out within the bronchial drainage sessions, which are routinely performed at each visit. The spontaneous sputum is collected in a sterile container. In order not to contaminate the sputum with buccal epithelial cells will be asked patients to rinse the mouth before expectorate."