Advances in the restoration of CFTR in children and pwCF with "mild disease".

Cystic fibrosis (CF) is a progressive genetic disorder, with lung disease being the main cause of morbidity and mortality. While advances in treatment have extended life expectancy, lung function still declines over time. Early inflammation and chronic infection, particularly with pseudomonas, worsen outcomes. Current management focuses on nutrition, airway clearance and infection control, but CFTR modulators directly target the genetic defect, improving lung function and reducing pulmonary exacerbations. Early use of CFTR modulators can alter the course of the disease.