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      Management of Diabetes Associated with Nephrotic Syndrome: Therapeutic Potential of Dapagliflozin for Protracted Volume Retention

      case-report

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          Abstract

          A 48-year-old female was admitted to our hospital presenting with a chief complaint of progressive swelling because of diabetic nephrotic syndrome. Dapagliflozin seemed to play a role in accelerating the patient’s urinary sodium excretion as well as reducing gross fluid retention despite the fact that her nephrotic condition was resistant to furosemide. Our experience emphasizes a potential novel approach to overcoming loop diuretic resistance using this agent among some subsets of type 2 diabetic subjects complicated with severe volume accumulation. We believe that combination treatment consisting of dapagliflozin and furosemide may produce diuretic synergy via sequential nephron blockade. The accumulation of more experience with additional cases similar to ours requires continuous and careful attention.

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          Most cited references13

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          Sodium-Glucose Cotransport Inhibition With Dapagliflozin in Type 2 Diabetes

          OBJECTIVE Dapagliflozin, a novel inhibitor of renal sodium-glucose cotransporter 2, allows an insulin-independent approach to improve type 2 diabetes hyperglycemia. In this multiple-dose study we evaluated the safety and efficacy of dapagliflozin in type 2 diabetic patients. RESEARCH DESIGN AND METHODS Type 2 diabetic patients were randomly assigned to one of five dapagliflozin doses, metformin XR, or placebo for 12 weeks. The primary objective was to compare mean change from baseline in A1C. Other objectives included comparison of changes in fasting plasma glucose (FPG), weight, adverse events, and laboratory measurements. RESULTS After 12 weeks, dapagliflozin induced moderate glucosuria (52–85 g urinary glucose/day) and demonstrated significant glycemic improvements versus placebo (ΔA1C −0.55 to −0.90% and ΔFPG −16 to −31 mg/dl). Weight loss change versus placebo was −1.3 to −2.0 kg. There was no change in renal function. Serum uric acid decreased, serum magnesium increased, serum phosphate increased at higher doses, and dose-related 24-h urine volume and hematocrit increased, all of small magnitude. Treatment-emergent adverse events were similar across all groups. CONCLUSIONS Dapagliflozin improved hyperglycemia and facilitates weight loss in type 2 diabetic patients by inducing controlled glucosuria with urinary loss of ∼200–300 kcal/day. Dapagliflozin treatment demonstrated no persistent, clinically significant osmolarity, volume, or renal status changes.
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            Dapagliflozin, a novel, selective SGLT2 inhibitor, improved glycemic control over 2 weeks in patients with type 2 diabetes mellitus.

            Dapagliflozin, administered to patients in once-daily oral doses, is a sodium-glucose cotransporter 2 (SGLT2) inhibitor that blocks the reabsorption of glucose from urine into the blood. This 14-day study randomized patients with type 2 diabetes mellitus (T2DM) to four treatment groups receiving daily oral doses of 5-, 25-, or 100-mg doses of dapagliflozin or placebo, in order to evaluate glucosuria and glycemic parameters. Significant reductions in fasting serum glucose (FSG) were observed on day 2 with 100 mg dapagliflozin (-9.3%, P < 0.001), and dose-dependent reductions were observed on day 13 with the 5-mg (-11.7%; P < 0.05), 25-mg (-13.3%; P < 0.05), and 100-mg (-21.8%; P < 0.0001) doses as compared with placebo. Significant improvements in oral glucose tolerance test (OGTT) were observed with all doses on days 2 and 13 (P < 0.001 as compared with placebo). On day 14, urine glucose values were 36.6, 70.1, and 69.9 g/day for the 5-, 25-, and 100-mg doses (as compared with no change for placebo), which were slightly lower than those on day 1. This was attributed to the decrease in filtered glucose load following improved glycemic control. Dapagliflozin produced dose-dependent increases in glucosuria and clinically meaningful changes in glycemic parameters in T2DM patients.
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              A Study of Dapagliflozin in Patients With Type 2 Diabetes Receiving High Doses of Insulin Plus Insulin Sensitizers

              OBJECTIVE To determine whether dapagliflozin, which selectively inhibits renal glucose reabsorption, lowers hyperglycemia in patients with type 2 diabetes that is poorly controlled with high insulin doses plus oral antidiabetic agents (OADs). RESEARCH DESIGN AND METHODS This was a randomized, double-blind, three-arm parallel-group, placebo-controlled, 26-center trial (U.S. and Canada). Based on data from an insulin dose-adjustment setting cohort (n = 4), patients in the treatment cohort (n = 71) were randomly assigned 1:1:1 to placebo, 10 mg dapagliflozin, or 20 mg dapagliflozin, plus OAD(s) and 50% of their daily insulin dose. The primary outcome was change from baseline in A1C at week 12 (dapagliflozin vs. placebo, last observation carried forward [LOCF]). RESULTS At week 12 (LOCF), the 10- and 20-mg dapagliflozin groups demonstrated −0.70 and −0.78% mean differences in A1C change from baseline versus placebo. In both dapagliflozin groups, 65.2% of patients achieved a decrease from baseline in A1C ≥0.5% versus 15.8% in the placebo group. Mean changes from baseline in fasting plasma glucose (FPG) were +17.8, +2.4, and −9.6 mg/dl (placebo, 10 mg dapagliflozin, and 20 mg dapagliflozin, respectively). Postprandial glucose (PPG) reductions with dapagliflozin also showed dose dependence. Mean changes in total body weight were −1.9, −4.5, and −4.3 kg (placebo, 10 mg dapagliflozin, and 20 mg dapagliflozin). Overall, adverse events were balanced across all groups, although more genital infections occurred in the 20-mg dapagliflozin group than in the placebo group. CONCLUSIONS In patients receiving high insulin doses plus insulin sensitizers who had their baseline insulin reduced by 50%, dapagliflozin decreased A1C, produced better FPG and PPG levels, and lowered weight more than placebo.
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                Author and article information

                Journal
                Drug Target Insights
                Drug Target Insights
                Drug Target Insights
                Drug Target Insights
                Libertas Academica
                1177-3928
                2015
                11 November 2015
                : 9
                : 29-31
                Affiliations
                Division of Nephrology, Department of Internal Medicine, Jichi Medical University, Shimotsuke-shi, Tochigi, Japan.
                Author notes
                Article
                dti-9-2015-029
                10.4137/DTI.S31710
                4644139
                26609216
                cca1af7c-e16e-4c7c-bc47-bddb21418ca0
                © 2015 the author(s), publisher and licensee Libertas Academica Ltd.

                This is an open-access article distributed under the terms of the Creative Commons CC-BY-NC 3.0 License.

                History
                : 13 July 2015
                : 10 September 2015
                : 14 September 2015
                Categories
                Case Report

                Pharmacology & Pharmaceutical medicine
                nephrotic syndrome,sglt-2,dapagliflozin,diabetes,furosemide
                Pharmacology & Pharmaceutical medicine
                nephrotic syndrome, sglt-2, dapagliflozin, diabetes, furosemide

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