[HTML][HTML] Continuous glucose monitoring in youth with cystic fibrosis treated with lumacaftor-ivacaftor

A Li, T Vigers, L Pyle, E Zemanick, K Nadeau… - Journal of Cystic …, 2019 - Elsevier
A Li, T Vigers, L Pyle, E Zemanick, K Nadeau, SD Sagel, CL Chan
Journal of Cystic Fibrosis, 2019Elsevier
Background The effects of lumacaftor-ivacaftor therapy on glycemia have not been
thoroughly investigated. Continuous glucose monitoring (CGM) provides detailed
information about glycemic patterns and detects glucose abnormalities earlier than
traditional screening tools for diabetes. Methods CGM measures, HbA1c, and oral glucose
tolerance test (OGTT) results were collected and within-subject results compared in F508del
homozygous youth with CF before and after initiation of lumacaftor-ivacaftor using the …
Background
The effects of lumacaftor-ivacaftor therapy on glycemia have not been thoroughly investigated. Continuous glucose monitoring (CGM) provides detailed information about glycemic patterns and detects glucose abnormalities earlier than traditional screening tools for diabetes.
Methods
CGM measures, HbA1c, and oral glucose tolerance test (OGTT) results were collected and within-subject results compared in F508del homozygous youth with CF before and after initiation of lumacaftor-ivacaftor using the Wilcoxon signed-rank test.
Results
Nine youth with CF (6 males, median age 12.7 years) were enrolled. CGM was performed in all participants before (median 26 weeks) and after lumacaftor-ivacaftor (median 29 weeks). HbA1c and fasting plasma glucose increased (p = .02) after lumacaftor-ivacaftor initiation. No changes in OGTT 1 h or 2 h glucose nor CGM measures were observed overall. When analyzed by sex, males showed lower glycemic variability, as reflected by the mean amplitude of glycemic excursions, on the post-treatment CGM.
Conclusions
Glycemic abnormalities persisted in CF patients treated with lumacaftor-ivacaftor, although sex-dependent differences in glycemic response to treatment may exist.
Elsevier