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Featured researches published by Sreeraj Macha.


Diabetes, Obesity and Metabolism | 2013

Safety, tolerability, pharmacokinetics and pharmacodynamics following 4 weeks' treatment with empagliflozin once daily in patients with type 2 diabetes.

T. Heise; E. Seewaldt-Becker; Sreeraj Macha; S. Hantel; Sabine Pinnetti; Leo Seman; Hj Woerle

To investigate the safety, tolerability, pharmacokinetics and pharmacodynamics of empagliflozin in patients with type 2 diabetes following oral administration of 10, 25 or 100 mg doses once daily over 28 days.


Diabetes, Obesity and Metabolism | 2014

Pharmacokinetics, pharmacodynamics and safety of empagliflozin, a sodium glucose cotransporter 2 (SGLT2) inhibitor, in subjects with renal impairment

Sreeraj Macha; Michaela Mattheus; A. Halabi; Sabine Pinnetti; Hj Woerle; Uli C. Broedl

Empagliflozin is a selective sodium glucose cotransporter 2 (SGLT2) inhibitor that inhibits renal glucose reabsorption and is being investigated for the treatment of type 2 diabetes mellitus (T2DM).


Clinical pharmacology in drug development | 2013

Empagliflozin (BI 10773), a Potent and Selective SGLT2 Inhibitor, Induces Dose-Dependent Glucosuria in Healthy Subjects

Leo Seman; Sreeraj Macha; Gerhard Nehmiz; Gudrun Simons; Bailuo Ren; Sabine Pinnetti; Hans J. Woerle; Klaus Dugi

Empagliflozin is an orally available, selective inhibitor of sodium glucose cotransporter 2. In this study, single oral doses of empagliflozin from 0.5 to 800 mg were not associated with any clinically significant safety concerns in healthy male volunteers. The incidence of adverse events (AEs) was similar in subjects receiving placebo (22.2%) or empagliflozin (25.0%) in the single rising dose part of the study and after 50 mg empagliflozin under fed (28.6%) or fasted (28.6%) conditions. The most frequent AE was headache. No clinically relevant changes in laboratory or electrocardiogram (ECG) measurements were observed. Single oral doses of empagliflozin were rapidly absorbed, reaching peak levels after 1.0–2.1 hours. Increases in empagliflozin exposure were roughly dose‐proportional and a dose‐dependent increase in urinary glucose excretion was observed for empagliflozin doses up to 100 mg. After ingestion of 50 mg empagliflozin in conjunction with a high‐fat, high‐calorie meal, no clinically relevant changes in exposure were found, indicating that empagliflozin can be administered independent of food. Empagliflozin up to 800 mg did not generate clinically significant safety concerns in healthy male subjects. The pharmacokinetic properties of empagliflozin support once daily administration independent of food.


Advances in Therapy | 2012

Pharmacokinetics of empagliflozin, a sodium glucose cotransporter-2 (SGLT-2) inhibitor, coadministered with sitagliptin in healthy volunteers.

Tobias Brand; Sreeraj Macha; Michaela Mattheus; Sabine Pinnetti; Hans J. Woerle

IntroductionThis randomized, open-label, crossover study investigated potential drug-drug interactions between the sodium glucose cotransporter-2 (SGLT-2) inhibitor empagliflozin and the dipeptidyl peptidase-4 (DPP-4) inhibitor sitagliptin. Empagliflozin is a potent and selective SGLT-2 inhibitor that lowers blood glucose levels by inhibiting renal glucose reabsorption, leading to an increase in urinary glucose excretion. Sitagliptin lowers blood glucose through an insulin-dependent mechanism of action.MethodsSixteen healthy male volunteers received three treatments (A, B, C) in one of two treatment sequences (AB then C, or C then AB). In treatment AB, 50 mg empagliflozin was administered once daily (q.d.) for 5 days (treatment A), immediately followed by coadministration of 50 mg empagliflozin q.d. and 100 mg sitagliptin q.d. over 5 days (treatment B). In treatment C, 100 mg sitagliptin was administered q.d. for 5 days. A washout period of ≥7 days separated treatments AB and C.ResultsCoadministration of sitagliptin with empagliflozin did not have a clinically relevant effect on the area under the concentration-time curve of the analyte in plasma at steady state over a uniform dosing interval τ (AUCτ,ss) (geometric mean ratio [GMR] 110.4; 90% confidence interval [CI] 103.9, 117.3) or maximum measured concentration of the analyte in plasma at steady state over a uniform dosing interval τ (Cmax,ss) (GMR 107.6; 90% CI 97.0, 119.4) of empagliflozin. Coadministration of empagliflozin with sitagliptin did not have a clinically meaningful effect on the AUCτ,ss (GMR 103.1; 90% CI 98.9, 107.3) or Cmax,ss (GMR 108.5; 90% CI 100.7, 116.9) of sitagliptin. Empagliflozin and sitagliptin were well tolerated when given alone or in combination. Five subjects (31.3%) reported at least one adverse event (AE): three (18.8%) experienced an AE while receiving empagliflozin monotherapy and three (18.8%) while receiving sitagliptin monotherapy. No adverse events were reported during the coadministration period. No AEs were regarded as drug-related by the investigator.ConclusionThese results indicate that empagliflozin and sitagliptin can be coadministered without dose adjustments.


Clinical Therapeutics | 2016

Pharmacodynamic Effects of Single and Multiple Doses of Empagliflozin in Patients With Type 2 Diabetes

Tim Heise; Jens Jordan; Christoph Wanner; Martina Heer; Sreeraj Macha; Michaela Mattheus; Søren S Lund; Hans J. Woerle; Uli C. Broedl

PURPOSE Our aim was to investigate the effects of the sodium glucose cotransporter 2 inhibitor empagliflozin on urinary and serum glucose and electrolytes, urinary volume, osmolality, and the renin-angiotensin system in patients with type 2 diabetes. METHODS In an open-label study, 22 patients receiving metformin (median age 56 years; range 40-65 years) received empagliflozin 25 mg once daily for 5 days. Food, fluid, and sodium intake were standardized for 3 days before and during treatment. FINDINGS Twenty patients completed treatment. After single and multiple doses of empagliflozin, mean (SE) changes from baseline in 24-hour urinary glucose excretion were 463.3 (57.3) mmol/d and 599.5 (60.0) mmol/d, respectively (83.5 [10.3] g/d and 108.0 [10.8] g/d, respectively) (both P < 0.001), and in fasting serum glucose concentration were -1.8 (0.4) mmol/L and -1.1 (0.3) mmol/L, respectively (both P < 0.001). After a single dose, mean (SE) change from baseline in urine sodium excretion was 45.3 (9.6) mmol/d (P < 0.001), and in urine volume was 341.0 (140.5) g/d (P = 0.025), but there were no changes compared with baseline in either parameter after multiple doses. There were no changes in plasma renin or serum aldosterone with single or multiple doses of empagliflozin. There was a nonsignificant reduction in weight after a single dose of empagliflozin and a mean (SE) change of -1.4 (0.5) kg after multiple doses (P = 0.020). IMPLICATIONS Empagliflozin 25 mg increased urinary glucose excretion and decreased serum glucose and weight with transient natriuresis and increases in urine volume, without significant changes in the renin-angiotensin system. Clinicaltrials.gov Identifier: NCT01276288.


Diabetes, Obesity and Metabolism | 2014

Pharmacokinetics, safety and tolerability of empagliflozin, a sodium glucose cotransporter 2 inhibitor, in patients with hepatic impairment

Sreeraj Macha; Peter Rose; Michaela Mattheus; R. Cinca; Sabine Pinnetti; Uli C. Broedl; Hj Woerle

This open‐label, parallel‐group study investigated the effect of various degrees of hepatic impairment on the pharmacokinetics, safety and tolerability of the sodium glucose cotransporter 2 inhibitor empagliflozin.


principles and practice of constraint programming | 2013

Pharmacokinetics of empagliflozin, a sodium glucose cotransporter-2 (SGLT2) inhibitor, and metformin following co-administration in healthy volunteers.

Sreeraj Macha; Sabine Dieterich; Michaela Mattheus; Leo Seman; Uli C. Broedl; Hans J. Woerle

OBJECTIVE This open-label study investigated potential drug-drug interactions between empagliflozin and metformin. METHODS 16 healthy men received treatment A (empagliflozin 50 mg q.d. for 5 days), treatment B (empagliflozin 50 mg q.d. for 4 days with metformin 1,000 mg b.i.d. for 3 days and 1,000 mg q.d. on Day 4) and treatment C (metformin 1,000 mg b.i.d. for 3 days and 1,000 mg q.d .on Day 4) in the sequence AB then C, or C then AB. RESULTS Metformin had no clinically relevant effect on the area under the steady state plasma concentration-time curve (AUC(τ,ss) geometric mean ratio (GMR): 96.9; 90% CI: 92.3 - 101.7) or the maximum plasma concentration at steady state (C(max,ss) GMR: 100.5; 90% CI: 88.8 - 113.7) of empagliflozin. Similarly, empagliflozin had no clinically relevant effect on AUC(τ,ss) (GMR: 100.7; 90% CI: 95.9 - 105.6) or C(max,ss) (GMR: 103.6; 90% CI: 96.5 - 111.2) of metformin. The renal clearance of empagliflozin and metformin were unaffected by co-administration. Both drugs were well tolerated alone and in combination and did not cause hypoglycemia. CONCLUSIONS These data support co-administration of empagliflozin and metformin without dose adjustment.


Diabetes, Obesity and Metabolism | 2013

Lack of drug-drug interaction between empagliflozin, a sodium glucose cotransporter 2 inhibitor, and warfarin in healthy volunteers.

Sreeraj Macha; Peter Rose; Michaela Mattheus; Sabine Pinnetti; Hj Woerle

To investigate potential drug–drug interactions between empagliflozin and warfarin.


Clinical Therapeutics | 2013

Lack of clinically relevant drug-drug interaction between empagliflozin, a sodium glucose cotransporter 2 inhibitor, and verapamil, ramipril, or digoxin in healthy volunteers.

Sreeraj Macha; Regina Sennewald; Peter Rose; Katja Schoene; Sabine Pinnetti; Hans J. Woerle; Uli C. Broedl

BACKGROUND Empagliflozin is a sodium glucose cotransporter 2 inhibitor in clinical development as a treatment for type 2 diabetes mellitus. OBJECTIVE The goal of this study was to investigate potential drug-drug interactions between empagliflozin and verapamil, ramipril, and digoxin in healthy volunteers. METHODS The potential drug-drug interactions were evaluated in 3 separate trials. In the first study, 16 subjects were randomized to receive single-dose empagliflozin 25 mg alone or single-dose empagliflozin 25 mg with single-dose verapamil 120 mg. In the second study, 23 subjects were randomized to receive empagliflozin 25 mg once daily (QD) for 5 days, ramipril (2.5 mg on day 1 then 5 mg QD on days 2-5) for 5 days or empagliflozin 25 mg with ramipril (2.5 mg on day 1 then 5 mg QD on days 2-5) for 5 days. In the third study, 20 subjects were randomized to receive single-dose digoxin 0.5 mg alone or empagliflozin 25 mg QD for 8 days with single-dose digoxin 0.5 mg on day 5. RESULTS Exposure of empagliflozin was not affected by coadministration with verapamil (AUC0-∞: geometric mean ratio [GMR], 102.95%; 90% CI, 98.87-107.20; Cmax: GMR, 92.39%; 90% CI, 85.38-99.97) or ramipril (AUC over a uniform dosing interval τ at steady state [AUCτ,ss]: GMR, 96.55%; 90% CI, 93.05-100.18; Cmax at steady state [Cmax,ss]: GMR, 104.47%; 90% CI 97.65-111.77). Empagliflozin had no clinically relevant effect on exposure of ramipril (AUCτ,ss: GMR, 108.14%; 90% CI 100.51-116.35; Cmax,ss: GMR, 103.61%; 90% CI, 89.73-119.64) or its active metabolite ramiprilat (AUCτ,ss: GMR, 98.67%; 90% CI, 96.00-101.42; Cmax,ss: GMR, 98.29%; 90% CI, 92.67-104.25). Coadministration of empagliflozin had no clinically meaningful effect on digoxin AUC0-∞ (GMR, 106.11%; 90% CI, 96.71-116.41); however, a slight increase in Cmax was observed that was not considered clinically relevant (GMR, 113.94%; 90% CI, 99.33-130.70). All treatments were well tolerated. There were no serious adverse events or adverse events leading to discontinuation in any of the studies. CONCLUSIONS No dose adjustment of empagliflozin is required when coadministered with ramipril or verapamil, and no dose adjustment of digoxin or ramipril is required when coadministered with empagliflozin. ClinicalTrials.gov identifiers: NCT01306175 (digoxin), NCT01276301 (verapamil), and NCT01284621 (ramipril).


Journal of Diabetes Research and Clinical Metabolism | 2012

Pharmacokinetics of Empagliflozin, a Sodium Glucose Cotransporter 2 Inhibitor, and Glimepiride Following Co-administration in Healthy Volunteers: A Randomised, Open-label, Crossover Study

Sreeraj Macha; Michaela Mattheus; Sabine Pinnetti; Leo Seman; Hans J. Woerle

Abstract Background: Empagliflozin is a potent and selective sodium glucose cotransporter 2 inhibitor in development for the treatment of type 2 diabetes mellitus. This randomised open-label crossover study investigated

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Uli C. Broedl

Ludwig Maximilian University of Munich

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