INTRODUCTION: Cystic fibrosis transmembrane conductance regulator modulator therapy improves nutritional status and quality of life. Clinical trials have shown pancreatic insufficiency conversion, mostly in pediatric patients treated with ivacaftor. Studies with elexacaftor/tezacaftor/ivacaftor (ETI) in older patients have not suggested restoration of exocrine pancreas function, but quality data in adults are lacking. Our aim was to show the effect of ETI in adults with cystic fibrosis (CF) on nutritional status and digestive function. We hypothesized improvement of nutritional parameters and gastrointestinal symptoms, reduction of pancreatic enzyme replacement therapy, but uncertain improvement in exocrine pancreatic function. METHODS: We prospectively enrolled adults with CF treated with ETI from August 2021 to June 2022. We measured anthropometric parameters, laboratory nutritional markers, change of fecal elastase, pancreatic enzymes replacement therapy needs, and gastrointestinal symptoms. RESULTS: In the cohort of 29 patients (mean age 29.1 years), 82.8% suffered exocrine pancreatic insufficiency. After ETI, mean BMI increased by 1.20 kg/m2 (p < 0.001), mean body weight by 3.51 kg (p < 0.001), albumin by 2.81 g/L, and prealbumin by 0.06 (both p < 0.001). Only 1 patient, initially pancreatic insufficient (4.5%, p < 0.001), developed pancreatic sufficiency, indicated by increased fecal elastase from 45 μg/g to 442.1 μg/g. Mean change in lipase substitution decreased by 1,969 units/kg/day (p < 0.001) and stools frequency by 1.18 per day (p < 0.001). CONCLUSION: Our data suggest increased nutritional parameters, lower pancreatic substitution requirements, and improved defecation in adult CF patients on ETI. Improvement in exocrine pancreatic function might be mutation-specific and needs further study.

• Klíčová slova
• Cystic fibrosis, Elexacaftor/tezacaftor/ivacaftor, Exocrine pancreas function, Nutrition, Pancreatic enzyme replacement therapy,
• MeSH
• aminofenoly terapeutické užití   MeSH
• benzodioxoly terapeutické užití   MeSH
• chinoliny MeSH
• chinolony terapeutické užití   MeSH
• cystická fibróza * farmakoterapie   komplikace   MeSH
• dospělí MeSH
• exokrinní pankreatická insuficience * farmakoterapie   etiologie   komplikace   MeSH
• fixní kombinace léků * MeSH
• gastrointestinální nemoci farmakoterapie   MeSH
• indoly * terapeutické užití   MeSH
• lidé MeSH
• mladý dospělý MeSH
• nutriční stav * MeSH
• pankreatická elastasa metabolismus   MeSH
• prospektivní studie MeSH
• pyrazoly terapeutické užití   MeSH
• pyridiny terapeutické užití   MeSH
• pyrrolidiny terapeutické užití   MeSH
• výsledek terapie MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Názvy látek
• aminofenoly MeSH
• benzodioxoly MeSH
• chinoliny MeSH
• chinolony MeSH
• elexacaftor, ivacaftor, tezacaftor drug combination MeSH Prohlížeč
• elexacaftor MeSH Prohlížeč
• fixní kombinace léků * MeSH
• indoly * MeSH
• pankreatická elastasa MeSH
• pyrazoly MeSH
• pyridiny MeSH
• pyrrolidiny MeSH