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Risk of Nocturnal Hypoglycemia and Arrhythmias With Sitagliptin Versus Glimepiride in Patients With Type 2 Diabetes

Information source: GWT-TUD GmbH
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Diabetes Mellitus Type 2

Intervention: Sitagliptin (Drug); Glimepiride (Drug); Sitagliptin-Placebo (Drug); Glimepiride-Placebo (Drug)

Phase: Phase 4

Status: Not yet recruiting

Sponsored by: GWT-TUD GmbH

Official(s) and/or principal investigator(s):
Markolf Hanefeld, Prof. Dr., Study Director, Affiliation: GWT-TUD GmbH

Overall contact:
Katja Reichardt, Dr., Phone: +49 351 25933, Ext: 188, Email: katja.reichardt@gwtonline.de

Summary

This exploratory double blind randomized active controlled study is designed to assess the effects of a treatment with therapeutical dosage of sitagliptin versus therapeutical dosage of glimepiride as add on therapy in patients with diabetes mellitus type 2 (T2DM) patients inadequately controlled on metformin monotherapy.

Clinical Details

Official title: Randomized Double Blind Parallel Design Study Comparing Risk of Nocturnal Hypoglycemia and Critical Arrhythmia With Sitagliptin Versus Glimepiride in Patients With Type 2 Diabetes Insufficiently Controlled With Metformin Monotherapy

Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Primary outcome: number of hypoglycemic episodes (HE) under treatment with sitagliptin compared to glimepiride

Secondary outcome:

occurence and number of nocturnal ventricular arrhythmias

glycemic variability (profile) of sitagliptin compared to glimepiride

Detailed description: Type 2 Diabetes is associated with an increased cardiovascular morbidity and mortality. Among patients insufficiently controlled with metformin multimorbidity and polypharmacy is common that makes the patients frail for cardiovascular complications related to hypoglycemic events. This exploratory double blind randomized active controlled study is designed to assess the effects of a treatment with therapeutical dosage of sitagliptin versus therapeutical dosage of glimepiride as add on therapy in patients with T2DM patients inadequately controlled on metformin monotherapy. Examinations will be performed as a 5 day recording of subcutaneous glucose concentration (CGMS) and holder ECG (AMEDTEC) at baseline and after a 12 weeks treatment with sitagliptin or glimepiride as active comparators used in combination with metformin. With recording of nocturnal hypoglycemia and arrhythmias it is aimed to evaluate favorable glycemic profile under treatment with sitagliptin compared to glimepiride. The primary objective is risk of serious HE for both drugs. The glycemic profile of sitagliptin as add-on therapy to metformin seems to be favorable compared to sulfonylureass such as glimepiride. Treatment with sitagliptin as add-on to metformin therapy causes less glycemic fluctuations and may be associated with lower oxidative stress and down regulation of low grade inflammation. This hypothesis will be tested as an explorative double blind study.

Eligibility

Minimum age: 40 Years. Maximum age: 80 Years. Gender(s): Both.

Criteria:

Inclusion Criteria:

- type 2 diabetes

- age 40-80 years

- stable dose of ≥ 1500 mg metformin or maximal tolerated dose of metformin for > 6

weeks

- HbA1c ≥ 7 % - ≤ 9. 0% for age < 65 years and ≥ 7. 5 % - ≤ 9. 0% for age ≥ 65 years

- able and trained to perform SMBG

- the informed consent form must be signed before any study specific tests or

procedures are done

- ability to understand and follow study-related instructions

Exclusion Criteria:

- Type 1 diabetes

- previous treatment with insulin, GLP1 analogues and SU in < 6 month

- HbA1c > 9 % or FPG > 15 mmol/l at randomization

- renal impairment with eGFR < 60 ml/min

- medical history of severe hypoglycemia defined as necessity of medical assistance in

< 1 year

- major cardiovascular event (MACE) in medical history < 6 months

- preexisting atrial fibrillation, , AV block ≥II degree, pace-maker, implanted

defibrillator

- major cardiovascular event in medical history < 6 months

- heart failure NYHA ≥ III

- contraindications to glimepiride and sitagliptin or to any excipients according to

product information

- severe cognitive deficits

- Patients who are disable to read and understand informative aspects of the trial

- Subject currently is enrolled in or has not yet completed at least 30 days since

ending other investigational device or drug study(s)

- Inability to comply with study procedures

- Pregnant or breast-feeding woman and woman without adequate method of contraception

Locations and Contacts

Katja Reichardt, Dr., Phone: +49 351 25933, Ext: 188, Email: katja.reichardt@gwtonline.de

GWT-TUD GmbH / Studienzentrum Hanefeld, Dresden 01307, Germany
Additional Information

Starting date: April 2015
Last updated: February 22, 2015

Page last updated: August 23, 2015

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