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Effect of Canagliflozin on Urinary Albumin Excretion in Japanese Patients with Type 2 Diabetes Mellitus and Microalbuminuria: A Pilot Study.

ABSTRACT: BACKGROUND:Albuminuria characterizes the progression of kidney injury. The effect of canagliflozin on the excretion of microalbumin was assessed for investigating its renoprotective potential in Japanese patients with type 2 diabetes mellitus (T2DM). PATIENTS AND METHODS:Twenty Japanese patients with T2DM and microalbuminuria were enrolled and administered with 100?mg of canagliflozin once a day for 12 weeks. These subjects were admitted to the clinic at the start and end of the treatment period for 24-h urine collection. The primary endpoint was the percentage change in geometric mean 24-h urinary albumin excretion from baseline to week 12. RESULTS:The urinary albumin level decreased by 42.0% (95% confidence interval: 21.9-57.0; P?=?0.0011) after 12 weeks of canagliflozin treatment. A number of blood and urinary parameters also significantly decreased, including hemoglobin A1c, fasting plasma glucose, estimated glomerular filtration rate, and creatinine clearance, while hematocrit was elevated. Among the biomarkers associated with kidney injury and inflammation, the urinary level of the oxidative stress marker 8-hydroxy-2'-deoxyguanosine was also decreased. There were no meaningful correlations noted between changes in urinary albumin excretion and other parameters/biomarkers. No severe adverse events were reported over the 12-week treatment period. CONCLUSIONS:The results of this study indicate that canagliflozin decreases microalbuminuria in Japanese patients with T2DM. Albuminuria could be reduced as a result of changes in various physiological pathways; therefore, it is imperative that future, large-scale, studies attempt to determine the detailed mechanisms involved. Canagliflozin may offer a novel therapeutic option for Japanese patients with T2DM and incipient nephropathy.

SUBMITTER: Osonoi T

PROVIDER: S-EPMC6161332 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Effect of Canagliflozin on Urinary Albumin Excretion in Japanese Patients with Type 2 Diabetes Mellitus and Microalbuminuria: A Pilot Study.

Osonoi Takeshi T Gouda Maki M Kubo Mamiko M Arakawa Kenji K Hashimoto Toshio T Abe Masanori M

Diabetes technology & therapeutics 20180810 10

<h4>Background</h4>Albuminuria characterizes the progression of kidney injury. The effect of canagliflozin on the excretion of microalbumin was assessed for investigating its renoprotective potential in Japanese patients with type 2 diabetes mellitus (T2DM).<h4>Patients and methods</h4>Twenty Japanese patients with T2DM and microalbuminuria were enrolled and administered with 100 mg of canagliflozin once a day for 12 weeks. These subjects were admitted to the clinic at the start and end of the t ...[more]

PMID: 30096243

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Project description:IntroductionCanagliflozin is a sodium glucose co-transporter 2 inhibitor approved worldwide for the treatment of patients with type 2 diabetes mellitus (T2DM). The present study evaluated pharmacokinetics, pharmacodynamics, and safety of canagliflozin in Japanese patients with T2DM.MethodsCanagliflozin, at doses of 25, 100, 200, or 400 mg, was administered as a single dose and, after a washout of 1 day, in repeated doses for 14 consecutive days to 61 subjects in a randomized, double-blind, placebo-controlled study. Plasma concentrations of canagliflozin and urinary glucose excretion (UGE) were measured, and renal threshold for glucose excretion (RTG) was calculated. Safety was evaluated on the basis of adverse event (AE) reports, blood and urine laboratory parameters, and vital signs.ResultsPlasma canagliflozin maximum concentration and area under the concentration-time curve (AUC) values increased in a dose-dependent manner with the time to maximum concentration (t max) of 1.0 h and elimination half-life (t 1/2) of 10.22-13.26 h on Day 1. No significant changes in t max and t 1/2 were observed after multiple-dose administration. The linearity factors, as calculated from the ratios of AUC0-24h on Day 16 to AUC0-∞ on Day 1, were close to 1 in all canagliflozin groups. Canagliflozin increased UGE0-24h (80-110 g/day with canagliflozin ≥100 mg) and decreased RTG from the first day of treatment; these effects were sustained during the entire period of multiple administration. No significant AEs were noted. Urine volume was slightly increased on Day 1, but subsequent changes after repeated doses for 14 days were small. Urinary sodium tended to be higher in the early treatment period, whereas no particular change was observed in serum osmolality and hematocrit.ConclusionCanagliflozin increased UGE, decreased RTG, and was well tolerated throughout the entire period of multiple administrations in Japanese patients with T2DM.FundingMitsubishi Tanabe Pharma Corporation.Trial registrationClinicalTrials.gov#NCT00707954.

Dataset Information

Effect of Canagliflozin on Urinary Albumin Excretion in Japanese Patients with Type 2 Diabetes Mellitus and Microalbuminuria: A Pilot Study.

Publications

Effect of Canagliflozin on Urinary Albumin Excretion in Japanese Patients with Type 2 Diabetes Mellitus and Microalbuminuria: A Pilot Study.

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