RecruitingDrug trialCanadian Observational Study Evaluating the Long-term IMPACT of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) Modulators on People With CFThis observational study intends to investigate health trends and data in cystic fibrosis patients all across Canada that are receiving modulator treatment so researchers can determine if CFTR treatments are effective over a long period of time and if so, which treatments work best for each individual. The study will collect clinical data from routine standard of care, patient reported outcomes via survey data and samples for a biobank.