Cited by 125Diabetes Treatment and ManagementHeart Failure Treatment and ManagementBlood Pressure and Hypertension Studies

Natriuretic effect of two weeks of dapagliflozin treatment in patients with type 2 diabetes and preserved kidney function during standardized sodium intake: results of the DAPASALT Trial

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Scholtes, Rosalie A., Muskiet, Marcel H.A., van Baar, Michiel J.B., Hesp, Anne C., Greasley, Peter J., Karlsson, Cecilia, Hammarstedt, Ann, Arya, Niki +2 more·2021·Diabetes Care

Abstract

OBJECTIVE: Sodium–glucose cotransporter 2 (SGLT2) inhibitors reduce the risk for heart failure hospitalization potentially by inducing sodium excretion, osmotic diuresis, and plasma volume contraction. Few studies have investigated this hypothesis, but none have assessed cumulative sodium excretion with SGLT2 inhibition during standardized sodium intake in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: The DAPASALT trial was a mechanistic, nonrandomized, open-label study in patients with type 2 diabetes with preserved kidney function on a controlled standardized sodium diet (150 mmol/day). It evaluated the effects of dapagliflozin on sodium excretion, 24-h blood pressure, and extracellular, intracellular, and plasma volumes at the start of treatment (ST) (days 2–4), end of treatment (ET) (days 12–14), and follow-up (FU) (days 15–18). RESULTS: Fourteen patients were included in the efficacy analysis. Mean (SD) baseline sodium excretion (150 [32] mmol/24-h) did not significantly change during treatment (change at ST: −7.0 mmol/24-h [95% CI −22.4, 8.4]; change at ET: 2.1 mmol/24-h [−28.8, 33.0]). Mean baseline 24-h systolic blood pressure was 128 (10) mmHg and significantly reduced at ST (−6.1 mmHg [−9.1, −3.1]; P < 0.001) and ET (−7.2 mmHg [−10.0, −4.3]; P < 0.001). Dapagliflozin did not significantly alter plasma volume or intracellular volume, while extracellular volume changed at ST (−0.7 L [−1.3, −0.1]; P = 0.02). As expected, 24-h urinary glucose excretion significantly increased during dapagliflozin treatment and reversed during FU. CONCLUSIONS: During standardized sodium intake, dapagliflozin reduced blood pressure without clear changes in urinary sodium excretion, suggesting that factors other than natriuresis and volume changes may contribute to the blood pressure–lowering effects.

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  • In type 2 diabetes patients with preserved kidney function on a strict standardized sodium diet, dapagliflozin significantly lowered 24 h blood pressure without obvious changes in sodium excretion.

    “A recent study in patients with T2D and preserved kidney function who adhered to a strict standardized sodium diet showed that the SGLT2 inhibitor dapagliflozin significantly decreased 24 h blood pressure without obvious changes in sodium excretion (Scholtes et al., 2021).”

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Authors
Scholtes, R. A., Muskiet, M. H. A., van Baar, M. J. B., Hesp, A. C., Greasley, P. J., Karlsson, C., Hammarstedt, A., Arya, N., van Raalte, D. H., & Heerspink, H. J. L.
Affiliations
  • Amsterdam UMC Location University of Amsterdam (NL)
  • Amsterdam Diabetes Center, Department of Internal Medicine, Academic Medical Center, VU University Medical Center, Amsterdam, the Netherlands
  • AstraZeneca (Sweden) (SE)
  • AstraZeneca (United States) (US)
  • University Medical Center Groningen (NL)
Corresponding author
Heerspink, Hiddo J.L.
Venue
Diabetes Care
Published
2020-12-14
Volume
44
Issue
2
Pages
440-447
ISSN
  • 0149-5992 (ISSN-L)
  • 1935-5548
OpenAlex
W3113051271
Cited by
125
References
39
Citations by year
2026: 11 · 2025: 21 · 2024: 19 · 2023: 31 · 2022: 26 · 2021: 17
FWCI
13.95
Type
journal article
Language
en
Open access
Locations
  • Diabetes Care (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (publishedVersion, other-oa)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (submittedVersion, other-oa)
  • University of Groningen research database (University of Groningen / Centre for Information Technology) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
Funders
AstraZeneca
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Failure Treatment and Management
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
Keywords
dapagliflozin, SGLT2 inhibitors, sodium excretion, type 2 diabetes, preserved renal function, blood pressure reduction, extracellular volume, plasma volume, intracellular fluid volume, urinary glucose excretion, osmotic diuresis, volume contraction, diuretic effect
MeSH terms
Sodium-Glucose Transporter 2 Inhibitors, Benzhydryl Compounds, Blood Glucose, Diabetes Mellitus, Type 2, Glucosides, Humans, Kidney, Sodium, Dietary, Natriuretic Agents

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