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Completed

NCT Number: NCT02372630

The Effect of LINAGLIPTIN on Inflammation, Oxidative Stress and Insulin Resistance in Obese Type 2 Diabetes Subjects

This is a single center, prospective randomized double blind, parallel and placebo controlled study to evaluate oxidative stress and inflammation before and after treatment with linagliptin for 12 weeks. We will also, testing whether Linagliptin is an insulin sensitizer.

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Key information

Age range

20 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

ECMC Ambulatory Center, 3rd Floor

Buffalo, New York, 14215, United States

About this study

This is a single center, prospective randomized double blind, parallel and placebo-controlled study to evaluate oxidative stress and inflammation before and after treatment with linagliptin for 12 weeks. The study enrolls type 2 patients with diabetes.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

Age 20-80 years inclusive. Type 2 diabetes BMI ≥30 kg/m2 Subjects on statins, ACE inhibitors, thiazolidinediones and antioxidants will be allowed as long as they are on stable doses of these compounds and the dosage in not changed during the course of study.

HbA1c ≤ 8.0%

Exclusion criteria

  • Use of GLP-1 agonists or DPP-IV therapy in the last 3 months. History of Pancreatitis. Risk for pancreatitis, i.e., history of gallstones, alcohol abuse, and hypertriglyceridemia.

Subjects who are taking antiplatelet or anticoagulant medications will be excluded from the fat biopsy portion of the study.

Coronary event or procedure (myocardial infarction, unstable angina, coronary artery bypass, surgery or coronary angioplasty) in the previous four weeks Hepatic disease (liver function tests more than 3 times the upper limit of normal) Renal impairment (serum eGFR <30 ml/min) Any other life-threatening, non-cardiac disease Uncontrolled hypertension (BP > 160/100 mm of Hg) Congestive Heart Failure class III or IV. Use of an investigational agent or therapeutic regimen within 30 days of study Participation in any other concurrent clinical trial

Treatment and study plan

Linagliptin

Drug

5 mg daily oral tablets of linagliptin

Other names: TRADJENTA

Placebo

Drug

matching placebo giving orally daily

Primary outcomes

  1. JNK-1 Protein in MNC

    Time frame: Week 0, Week 2, Week 4, Week 12

    JNK-1 protein in MNC before and after linagliptin use as compared to placebo.

Secondary outcomes

  1. IL-1β mRNA Levels

    Time frame: Week 0, Week 2, Week 4, Week 12

    Comparing IL-1B between Linagliptin group and placebo group based on the PCR test, between week 0 and week 12.

  2. Oxidative Stress (as ROS Generation Level)

    Time frame: Week 0, Week 2, Week 4, Week 12

    oxidative stress (ROS generation level) following linagliptin. ROS generation measurement by chemiluminescence of PMN cells

  3. Insulin Sensitivity by Hyperinsulinemic-euglycemic Clamp

    Time frame: At baseline and week 12

    Insulin sensitivity is measured with HE clamp. Glucose Infusion Rate was titrated to maintain blood glucose concentration at the fasting glucose level. Plasma samples for glucose was obtained at 10-minute intervals starting 30 minutes before the clamp, to quantitate rates of whole-body glucose disposal. Difference from baseline at 12 weeks is calculated and compared to placebo arm

Sponsors and collaborators

Lead sponsor

University at Buffalo

Other

Collaborators

  • Kaleida Health

Registry information

Official study title

The Effect of TRADJENTA ® (LINAGLIPTIN) on Inflammation, Oxidative Stress and Insulin Resistance in Obese Type 2 Diabetes Subjects

Acronym: 1971

Important dates

Study start
2014
Primary completion
2018
Study completion
2018
First posted
Feb 26, 2015
Registry last updated
Feb 21, 2023

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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