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Metabolic response to sodium-glucose cotransporter 2 inhibition in type 2 diabetic patients

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Ferrannini, Ele, Muscelli, Elza, Frascerra, Silvia, Baldi, Simona, Mari, Andrea, Heise, Tim, Broedl, Uli C., Woerle, Hans-Juergen·2014·Journal of Clinical Investigation

Abstract

BACKGROUND: Sodium-glucose cotransporter 2 (SGLT2) inhibitors lower glycemia by enhancing urinary glucose excretion. The physiologic response to pharmacologically induced acute or chronic glycosuria has not been investigated in human diabetes. METHODS: We evaluated 66 patients with type 2 diabetes (62 ± 7 years, BMI = 31.6 ± 4.6 kg/m(2), HbA1c = 55 ± 8 mmol/mol, mean ± SD) at baseline, after a single dose, and following 4-week treatment with empagliflozin (25 mg). At each time point, patients received a mixed meal coupled with dual-tracer glucose administration and indirect calorimetry. RESULTS: Both single-dose and chronic empagliflozin treatment caused glycosuria during fasting (median, 7.8 [interquartile range {IQR}, 4.4] g/3 hours and 9.2 [IQR, 5.2] g/3 hours) and after meal ingestion (median, 29.0 [IQR, 12.5] g/5 hours and 28.2 [IQR, 15.4] g/5 hours). After 3 hours of fasting, endogenous glucose production (EGP) was increased 25%, while glycemia was 0.9 ± 0.7 mmol/l lower (P < 0.0001 vs. baseline). After meal ingestion, glucose and insulin AUC decreased, whereas the glucagon response increased (all P < 0.001). While oral glucose appearance was unchanged, EGP was increased (median, 40 [IQR, 14] g and 37 [IQR, 11] g vs. 34 [IQR, 11] g, both P < 0.01). Tissue glucose disposal was reduced (median, 75 [IQR, 16] g and 70 [IQR, 21] g vs. 93 [IQR, 18] g, P < 0.0001), due to a decrease in both glucose oxidation and nonoxidative glucose disposal, with a concomitant rise in lipid oxidation after chronic administration (all P < 0.01). β Cell glucose sensitivity increased (median, 55 [IQR, 35] pmol • min(-1) • m(-2) • mM(-1) and 55 [IQR, 39] pmol • min(-1) • m(-2) • mM(-1) vs. 44 [IQR, 32] pmol • min(-1) • m(-2) • mM(-1), P < 0.0001), and insulin sensitivity was improved. Resting energy expenditure rates and those after meal ingestion were unchanged. CONCLUSIONS: In patients with type 2 diabetes, empagliflozin-induced glycosuria improved β cell function and insulin sensitivity, despite the fall in insulin secretion and tissue glucose disposal and the rise in EGP after one dose, thereby lowering fasting and postprandial glycemia. Chronic dosing shifted substrate utilization from carbohydrate to lipid. Trial registration. ClinicalTrials.Gov NCT01248364 (EudraCT no. 2010-018708-99). Funding. This study was funded by Boehringer Ingelheim.

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  • Previous RCTs reported that selective SGLT2 inhibitors reduce body weight by 1-3 kg in diabetic patients with and without obesity.

    “Previous RCTs reported that selective SGLT2 inhibitors, a new class of anti-diabetes drugs, have been shown to reduce body weight (1–3 kg reduction) in diabetic patients with and without obesity [99–102].”

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Research works printed but not linked: 2

  1. Yki-Järvinen H. Glucose toxicity. Endocr Rev. 1992;13(3):415-31.
  2. Ferrannini E, Solini A. SGLT2 inhibition in diabe- tes mellitus: rationale clinical prospects. Nat Rev Endocrinol. 2012;8(8):495-502.

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Authors
Ferrannini, E., Muscelli, E., Frascerra, S., Baldi, S., Mari, A., Heise, T., Broedl, U. C., & Woerle, H.-J.
Affiliations
  • University of Pisa (IT)
  • National Research Council (IT)
  • Profil Institute for Metabolic Research (DE)
  • Boehringer Ingelheim (Germany) (DE)
Corresponding author
Ferrannini, Ele
Venue
Journal of Clinical Investigation
Published
2014-01-27
Volume
124
Issue
2
Pages
499-508
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2157405334
Cited by
1,134
References
45
Citations by year
2026: 55 · 2025: 68 · 2024: 80 · 2023: 81 · 2022: 92 · 2021: 117 · 2020: 106 · 2019: 103 · 2018: 97 · 2017: 90 · 2016: 121 · 2015: 83 · 2014: 39
FWCI
89.27
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
Funders
  • American Diabetes Association
  • Bristol-Myers Squibb
  • Eli Lilly and Company
  • AstraZeneca
  • Sanofi
  • Novo Nordisk
  • Astellas Pharma
  • Daiichi Sankyo Europe
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Management and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
Keywords
SGLT2 inhibitors, empagliflozin, type 2 diabetes, glycosuria, endogenous glucose production, glucose oxidation, nonoxidative glucose disposal, lipid oxidation, beta-cell glucose sensitivity, glucagon response, insulin response, glucose metabolism, indirect calorimetry, mixed meal tolerance, urinary glucose excretion, glucose homeostasis
MeSH terms
Sodium-Glucose Transporter 2 Inhibitors, Aged, Benzhydryl Compounds, Blood Glucose, Calorimetry, Diabetes Mellitus, Type 2, Female, Glucose, Glucosides, Glycosuria, Glycated Hemoglobin, Humans, Insulin, Male, Metformin, Middle Aged, Oxygen, Body Mass Index, Postprandial Period, Area Under Curve, Insulin-Secreting Cells, Sodium-Glucose Transporter 2

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