Nutrition (Burbank, Los Angeles County, Calif.) · 2025
Nutritional outcomes in people with cystic fibrosis receiving elexacaftor/tezacaftor/ivacaftor: A 24-mo real-world study.
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Alicandro Gianfranco, Zazzeron Laura, Visciola Valentina, Bulfamante Anna, Biffi Arianna, Corti Fabiola, Gramegna Andrea, Blasi Francesco, Daccò Valeria
Аннотация
BACKGROUND: The highly effective CFTR modulator elexacaftor/tezacaftor/ivacaftor therapy has revolutionized the care of cystic fibrosis (CF) leading to significant improvement in patient outcomes. However, data on long-term evolution of nutritional outcomes are limited.
METHODS: We conducted a prospective study to evaluate changes in nutritional outcomes in people with CF (pwCF), including weight, body mass index (BMI), fat absorption and fat-soluble vitamin levels. Study outcomes were measured before treatment initiation and after 12 and 24 mo. Mean changes and 95% confidence intervals (CI) were obtained using generalized estimating equations.
RESULTS: A total of 84 patients with a median age of 19.9 y (range: 12-32) were enrolled. At the 24-mo follow-up visit, weight increased by 4.7 kg (95% CI: 3.5, 6.0) and BMI increased by 0.40 standard deviation scores (95% CI: 0.27, 0.53). The prevalence of overweight and obesity increased from 4.8% to 10.7%. After 24 mo of ETI therapy, levels of vitamin A and E, as well as international normalized ratio (used as a marker of vitamin K status) were lower than baseline values, while vitamin D did not appreciably change.
CONCLUSIONS: ETI has primarily led to significant improvements in the nutritional status of pwCF, resulting in increased BMI. However, a shift from the traditional hypercaloric and high fat diet to a balanced, healthy diet is essential to avoid excessive weight gain. Additionally, our findings underscore the need for ongoing monitoring of fat-soluble vitamin levels and adherence to supplementation.
METHODS: We conducted a prospective study to evaluate changes in nutritional outcomes in people with CF (pwCF), including weight, body mass index (BMI), fat absorption and fat-soluble vitamin levels. Study outcomes were measured before treatment initiation and after 12 and 24 mo. Mean changes and 95% confidence intervals (CI) were obtained using generalized estimating equations.
RESULTS: A total of 84 patients with a median age of 19.9 y (range: 12-32) were enrolled. At the 24-mo follow-up visit, weight increased by 4.7 kg (95% CI: 3.5, 6.0) and BMI increased by 0.40 standard deviation scores (95% CI: 0.27, 0.53). The prevalence of overweight and obesity increased from 4.8% to 10.7%. After 24 mo of ETI therapy, levels of vitamin A and E, as well as international normalized ratio (used as a marker of vitamin K status) were lower than baseline values, while vitamin D did not appreciably change.
CONCLUSIONS: ETI has primarily led to significant improvements in the nutritional status of pwCF, resulting in increased BMI. However, a shift from the traditional hypercaloric and high fat diet to a balanced, healthy diet is essential to avoid excessive weight gain. Additionally, our findings underscore the need for ongoing monitoring of fat-soluble vitamin levels and adherence to supplementation.