Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects

BackgroundDapagliflozin inhibits the sodium‐glucose–linked transporter 2 in the renal proximal tubule, thereby promoting glycosuria to reduce hyperglycemia in type 2 diabetes mellitus. Because these patients may require loop diuretics, and sodium‐glucose–linked transporter 2 inhibition causes an osm...

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Main Authors: Christopher S. Wilcox, Wen Shen, David W. Boulton, Bruce R. Leslie, Steven C. Griffen
Format: Article
Language:English
Published: Wiley 2018-02-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.117.007046
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author Christopher S. Wilcox
Wen Shen
David W. Boulton
Bruce R. Leslie
Steven C. Griffen
author_facet Christopher S. Wilcox
Wen Shen
David W. Boulton
Bruce R. Leslie
Steven C. Griffen
author_sort Christopher S. Wilcox
collection DOAJ
description BackgroundDapagliflozin inhibits the sodium‐glucose–linked transporter 2 in the renal proximal tubule, thereby promoting glycosuria to reduce hyperglycemia in type 2 diabetes mellitus. Because these patients may require loop diuretics, and sodium‐glucose–linked transporter 2 inhibition causes an osmotic diuresis, we evaluated the diuretic interaction between dapagliflozin and bumetanide. Methods and ResultsHealthy subjects (n=42) receiving a fixed diet with ≈110 mmol·d−1 of Na+ were randomized to bumetanide (1 mg·d−1), dapagliflozin (10 mg·d−1), or both for 7 days, followed by 7 days of both. There were no meaningful pharmacokinetic interactions. Na+ excretion increased modestly with the first dose of dapagliflozin (22±6 mmol·d−1; P<0.005) but by more (P<0.005) with the first dose of bumetanide (74±7 mmol·d−1; P<0.005), which was not significantly different from both diuretics together (80±5 mmol·d−1; P<0.005). However, Na+ excretion with dapagliflozin was 190% greater (P<0.005) when added after 1 week of bumetanide (64±6 mmol·d−1), and Na+ excretion with bumetanide was 36% greater (P<0.005) when added after 1 week of dapagliflozin (101±8 mmol·d−1). Serum urate was increased 4% by bumetanide but reduced 40% by dapagliflozin or 20% by combined therapy (P<0.05). ConclusionsFirst‐dose Na+ excretion with bumetanide and dapagliflozin is not additive, but the weekly administration of one diuretic enhances the initial Na+ excretion with the other, thereby demonstrating mutual adaptive natriuretic synergy. Combined therapy reverses bumetanide‐induced hyperuricemia. This requires further study in diabetic patients with hyperglycemia who have enhanced glycosuria and natriuresis with dapagliflozin. Clinical Trial RegistrationURL: http://www.clinicaltrials.gov. Unique identifier: NCT00930865.
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spelling doaj.art-1619c97876544435816282c5a46a52972022-12-21T23:54:09ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802018-02-017410.1161/JAHA.117.007046Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human SubjectsChristopher S. Wilcox0Wen Shen1David W. Boulton2Bruce R. Leslie3Steven C. Griffen4Division of Nephrology and Hypertension, and Hypertension Research Center, Georgetown University, Washington, DCDivision of Nephrology and Hypertension, and Hypertension Research Center, Georgetown University, Washington, DCAstraZeneca, Gaithersburg, MDBristol‐Myers Squibb, Princeton, NJBristol‐Myers Squibb, Princeton, NJBackgroundDapagliflozin inhibits the sodium‐glucose–linked transporter 2 in the renal proximal tubule, thereby promoting glycosuria to reduce hyperglycemia in type 2 diabetes mellitus. Because these patients may require loop diuretics, and sodium‐glucose–linked transporter 2 inhibition causes an osmotic diuresis, we evaluated the diuretic interaction between dapagliflozin and bumetanide. Methods and ResultsHealthy subjects (n=42) receiving a fixed diet with ≈110 mmol·d−1 of Na+ were randomized to bumetanide (1 mg·d−1), dapagliflozin (10 mg·d−1), or both for 7 days, followed by 7 days of both. There were no meaningful pharmacokinetic interactions. Na+ excretion increased modestly with the first dose of dapagliflozin (22±6 mmol·d−1; P<0.005) but by more (P<0.005) with the first dose of bumetanide (74±7 mmol·d−1; P<0.005), which was not significantly different from both diuretics together (80±5 mmol·d−1; P<0.005). However, Na+ excretion with dapagliflozin was 190% greater (P<0.005) when added after 1 week of bumetanide (64±6 mmol·d−1), and Na+ excretion with bumetanide was 36% greater (P<0.005) when added after 1 week of dapagliflozin (101±8 mmol·d−1). Serum urate was increased 4% by bumetanide but reduced 40% by dapagliflozin or 20% by combined therapy (P<0.05). ConclusionsFirst‐dose Na+ excretion with bumetanide and dapagliflozin is not additive, but the weekly administration of one diuretic enhances the initial Na+ excretion with the other, thereby demonstrating mutual adaptive natriuretic synergy. Combined therapy reverses bumetanide‐induced hyperuricemia. This requires further study in diabetic patients with hyperglycemia who have enhanced glycosuria and natriuresis with dapagliflozin. Clinical Trial RegistrationURL: http://www.clinicaltrials.gov. Unique identifier: NCT00930865.https://www.ahajournals.org/doi/10.1161/JAHA.117.007046congestive heart failurediabetes mellituspotassiumsodiumurate
spellingShingle Christopher S. Wilcox
Wen Shen
David W. Boulton
Bruce R. Leslie
Steven C. Griffen
Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
congestive heart failure
diabetes mellitus
potassium
sodium
urate
title Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
title_full Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
title_fullStr Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
title_full_unstemmed Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
title_short Interaction Between the Sodium‐Glucose–Linked Transporter 2 Inhibitor Dapagliflozin and the Loop Diuretic Bumetanide in Normal Human Subjects
title_sort interaction between the sodium glucose linked transporter 2 inhibitor dapagliflozin and the loop diuretic bumetanide in normal human subjects
topic congestive heart failure
diabetes mellitus
potassium
sodium
urate
url https://www.ahajournals.org/doi/10.1161/JAHA.117.007046
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