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Completed

NCT Number: NCT02607410

Sitagliptin (DPP-4 Inhibitor) and NPH Insulin in Patients With T2D

To compare the short and long term effects of inhibitor of the DPP-IV enzyme, sitagliptin , with bedtime NPH insulin in patients with T2D inadequately controlled with sulphonylurea plus biguanide: effects on beta cell function and on metabolic profile.

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Key information

Conditions

Type 2 Diabetes Mellitus Diabetes Mellitus Diabetes Mellitus, Type 2 Endocrine System Diseases Glucose Metabolism Disorders Metabolic Diseases Nutritional and Metabolic Diseases

Age range

35 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

University of Sao Paulo General Hospital

São Paulo, 05403-000, Brazil

About this study

Glucose control is fundamental in the treatment of type 2 diabetes (DM2). Studies suggest that drugs that boost levels of glucagon-like peptide (GLP-1) improve glycemic control and have long-term beneficial effect on the function of pancreatic beta cells. Objective: To compare the short and long term effects of sitagliptin (which inhibits the DPP-IV enzyme, increasing the levels of GLP-1) with bedtime NPH insulin in patients with T2D inadequately controlled with sulphonylurea plus biguanide. Effects on beta cell function and on metabolic profile were analyzed. Methods: 40 patients with DM2, HbA1c between 6.6 to 10%, in use of metformin and glibenclamide will be randomized to the addition of sitagliptin (Sitagliptin Group) or of bedtime NPH insulin (NPH Group). Measurements of HbA1c, metabolic and hormonal profile at fasting and post-meal (every 30 minutes for 4 hours) will be evaluated before and after 6 months (short term) and 12 months (long term) of adding sitagliptin or NPH insulin.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • outpatients with T2D inadequately controlled with metformin plus glyburide
  • HbA1c levels between 6.6 and 10%
  • body mass index < 35 kg/m2

Exclusion criteria

  • heart failure
  • respiratory failure
  • uncontrolled hypertension
  • impaired hepatic function
  • impaired reanl function
  • endocrine disorder
  • gastrointestinal disorder
  • malignancy
  • alcohol abuse
  • previous use of insulin
  • previou use of based incretin therapy
  • type 1 diabetes.

Treatment and study plan

Sitagliptin

Drug

patients with type 2 diabetes,inadequately controlled with metformin plus glyburide, HbA1c between 6.6 to 10%, will be randomized to the addition of sitagliptin (Sitagliptin Group) or of bedtime NPH insulin (NPH Group) during one year

Other names: DPP-4 inhibitor

NPH insulin

Drug

patients with type 2 diabetes,inadequately controlled with metformin plus glyburide, HbA1c between 6.6 to 10%, will be randomized to the addition of sitagliptin (Sitagliptin Group) or of bedtime NPH insulin (NPH Group) during one year

Other names: long-acting insulin

Primary outcomes

  1. improvement in HbA1c levels

    Time frame: six and twelve months

    Changes in fasting blood levels of HBA1c (%)

Secondary outcomes

  1. improvement of beta cell function with a meal test

    Time frame: six and twelve months after each therapy at times zero, 30, 60, 120 and 180 minutes after meal test

    Changes in serum C-peptide levels (ng/mL)

  2. improvement on alpha cell function with a meal test

    Time frame: six and twelve months after each therapy at times zero, 30, 60, 120 and 180 minutes after meal test

    Changes in plasma glucagon levels (pg/mL)

Sponsors and collaborators

Lead sponsor

University of Sao Paulo General Hospital

Other

Collaborators

  • Fundação de Amparo à Pesquisa do Estado de São Paulo

Registry information

Official study title

Short and Long Term Effects of a Dypeptidil-peptidase-4 Versus Bedtime NPH Insulin as add-on Therapy in Patients With Type 2 Diabetes

Important dates

Study start
2010
Primary completion
2012
Study completion
2014
First posted
Nov 18, 2015
Registry last updated
Nov 18, 2015

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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