Journal of clinical & translational endocrinology · 2025
Decreased insulin dose-adjusted hemoglobin A1c in adults with cystic fibrosis-related diabetes treated with elexacaftor-tezacaftor-ivacaftor.
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Burnet Espérie, Grunewald Deborah, Larger Etienne, Camus-Bablon Florence, Eisenhauer Catherine, Mifsud François, Martin Clémence, Honoré Isabelle, Kanaan Reem, Carlier Nicolas, Fesenbeckh Johanna, Mosnier-Pudar Helen, Burgel Pierre-Régis
Аннотация
BACKGROUND: Elexacaftor-tezacaftor-ivacaftor (ETI) became available for adults with cystic fibrosis (CF) in 2019, but its impact on CF-related diabetes (CFRD) remains unclear.
METHODS: A single-center retrospective cohort study was conducted among adults with CFRD to examine the change in insulin dose-adjusted Hemoglobin A1c (IDAA1c). Linear mixed effects model (LMEM) analysis was used to investigate the change in IDAA1c between baseline and 24 months of follow up, comparing an ETI-treated group to an unexposed group. Baseline values were those documented at treatment initiation for the ETI-treated group and in March 2020 (±3 months) for the unexposed group.
RESULTS: A total of 49 adults were included, 39 were treated with ETI and 10 were not. Median [Interquartile range] time since CFRD diagnosis at baseline was 13 [7-18] and 14 [10-18] years, respectively (p = 0.610). In the ETI-treated group, mean weight increased by a 4.44 kg (95 % Confidence Interval, 95 %CI: 3.08 to 5.79, p < 0.001), insulin total daily dose decreased by 5 units (95 %CI: -9 to 0, p = 0.033), and hemoglobin A1c (%) decreased by 0.65 points (95 %CI: -0.96 to -0.34, p < 0.001). No change was observed in the unexposed group. LMEM analysis found a numerically significant association between ETI and decreased IDAA1c, estimated at -1.14 points (95 %CI: -2.35 to 0.06, p = 0.067) after adjusting for age, sex, time since CFRD diagnosis and the introduction of Metformin.
CONCLUSION: A numerically significant association between ETI and IDAA1c decrease was observed in adults with established CFRD after 24 months of treatment, suggesting ETI contributed to improved glycemic control.
METHODS: A single-center retrospective cohort study was conducted among adults with CFRD to examine the change in insulin dose-adjusted Hemoglobin A1c (IDAA1c). Linear mixed effects model (LMEM) analysis was used to investigate the change in IDAA1c between baseline and 24 months of follow up, comparing an ETI-treated group to an unexposed group. Baseline values were those documented at treatment initiation for the ETI-treated group and in March 2020 (±3 months) for the unexposed group.
RESULTS: A total of 49 adults were included, 39 were treated with ETI and 10 were not. Median [Interquartile range] time since CFRD diagnosis at baseline was 13 [7-18] and 14 [10-18] years, respectively (p = 0.610). In the ETI-treated group, mean weight increased by a 4.44 kg (95 % Confidence Interval, 95 %CI: 3.08 to 5.79, p < 0.001), insulin total daily dose decreased by 5 units (95 %CI: -9 to 0, p = 0.033), and hemoglobin A1c (%) decreased by 0.65 points (95 %CI: -0.96 to -0.34, p < 0.001). No change was observed in the unexposed group. LMEM analysis found a numerically significant association between ETI and decreased IDAA1c, estimated at -1.14 points (95 %CI: -2.35 to 0.06, p = 0.067) after adjusting for age, sex, time since CFRD diagnosis and the introduction of Metformin.
CONCLUSION: A numerically significant association between ETI and IDAA1c decrease was observed in adults with established CFRD after 24 months of treatment, suggesting ETI contributed to improved glycemic control.