Effects of Sitagliptin on Postprandial Lipemia in Men With Type 2 Diabetes

This study has been completed.
Sponsor:
Collaborator:
Merck Sharp & Dohme Corp.
Information provided by (Responsible Party):
Patrick Couture, Laval University
ClinicalTrials.gov Identifier:
NCT00660075
First received: April 14, 2008
Last updated: November 13, 2012
Last verified: November 2012

April 14, 2008
November 13, 2012
February 2008
January 2009   (final data collection date for primary outcome measure)
Measurement of the Area Under the Curve of Plasma Triglycerides (TG) Levels During Postprandial Period (Time 0,2,4,6,8 Hours) [ Time Frame: At the end of the two 6-week interventions ] [ Designated as safety issue: No ]
Plasma TG and cholesterol levels during postprandial period [ Time Frame: 6 weeks ] [ Designated as safety issue: No ]
Complete list of historical versions of study NCT00660075 on ClinicalTrials.gov Archive Site
Not Provided
Not Provided
Not Provided
Not Provided
 
Effects of Sitagliptin on Postprandial Lipemia in Men With Type 2 Diabetes
A Randomized, Double-Blind, Placebo-Controlled, Crossover Study To Evaluate The Effects of Sitagliptin on Postprandial Plasma Lipoprotein Concentrations in Men With Type 2 Diabetes

Sitagliptin is a potent and selective inhibitor of dipeptidyl peptidase IV (DPP-4), and has been shown to reduce fasting and postprandial glucose levels in patients with type 2 diabetes mainly through incretin hormone-mediated improvements in islet function. Although clinical studies to date indicate that fasting lipid levels are minimally affected by DPP-4 inhibitor treatment, animal studies suggested that DPP-4 inhibition reduce intestinal triglyceride (TG) absorption and apolipoprotein production and increased chylomicron catabolism. Therefore, the present study was designed to examine the effects of sitagliptin on postprandial lipemia in patients with type 2 diabetes. A possible reduction in postprandial atherogenic triglyceride-rich lipoproteins (TRL) levels by sitagliptin would add to therapeutic utility of this DPP-4 inhibitor and suggest the potential to reduce cardiovascular risk in patients with type 2 diabetes.

Not Provided
Interventional
Phase 3
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
  • Diabetes Mellitus
  • Postprandial Lipemia
  • Drug: Sitagliptin
    Sitagliptin 100 mg/d for 6 weeks
  • Drug: Placebo
    Placebo for 6 weeks
  • Experimental: 1
    Sitagliptin 100 mg/d for 6 weeks
    Intervention: Drug: Sitagliptin
  • Placebo Comparator: 2
    Placebo for 6 weeks
    Intervention: Drug: Placebo
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
36
April 2009
January 2009   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Type 2 diabetes as defined by the American Diabetes Association;
  • Non-smoker;
  • Body mass index between 25.0 and 40.0 kg/m2;
  • Baseline HbA1c between 6.5 and 8.5%;
  • Baseline fasting plasma glucose < 15.0 mmol/L;
  • Plasma triglyceride levels between 1.5 and 8.0 mmol/L (135 and 710 mg/dl) at week and -4;
  • Patients having received stable doses of metformin for at least 3 months before randomization;
  • Subjects must be willing to give written informed consent and able to adhere to dosing schedule, visit schedule and phone follow-up assessment;
  • Patients should be otherwise generally healthy, without elevations in hepatic transaminases or abnormal renal function or coagulation;
  • Patients having normal TSH at screening.

Exclusion Criteria:

  • Patients with extreme dyslipidemias, such as familial hypercholesterolemia will be excluded;
  • Patients with type 1 diabetes, secondary form of diabetes or acute metabolic diabetic complications will be excluded;
  • Patients having received or being treated with insulin or a thiazolidinedione within the past 6 months will be excluded;
  • Subjects will be excluded if they have cardiovascular disease (CVD) (coronary heart disease, cerebrovascular disease or peripheral arterial disease) or if they are taking other medications known to affect lipoprotein metabolism (e.g. steroids, beta blockers, thiazide diuretics, lipid lowering agents, significant alcohol intake etc.);
  • Subjects who are in a situation or have any condition that, in the opinion of the investigator, may interfere with optimal participation in the study;
  • Individuals with a history of mental instability, drug or alcohol abuse or individuals who have been treated or are being treated for severe psychiatric illness that, in the opinion of the investigator, may interfere with optimal participation in the study;
  • History of alcohol or drug abuse within the past 2 years. Patients must not take alcohol during the study;
  • Disorders of the hematologic, digestive, or central nervous systems, including cerebrovascular disease and degenerative disease, that would limit study evaluation or participation;
  • Known impairment of renal function (serum creatinine levels > 1.7 mg/dL for men), dysproteinemia, nephrotic syndrome, or other renal disease (24-hour urinary protein ≥3 ± 1 g);
  • Active or chronic hepatobiliary or hepatic disease. In addition, patients with AST or ALT >2 x upper limit of the laboratory reference range will be excluded;
  • Subjects with coagulopathy (prothrombin time [PT] or partial thromboplastin time [PTT] at Visit 1 >1.5 times control;
  • Patients who are known to have tested positive for human immunodeficiency virus (HIV);
  • Patients who are currently enrolled in another clinical study;
  • Patients who have used any investigational drug within 30 days of the first clinic visit;
  • Congestive heart failure NYHA Class III or IV. Uncontrolled cardiac arrhythmias within 3 months of study entry;
  • Uncontrolled diabetes mellitus (HbA1c>8.5%) or other endocrine or metabolic disease known to influence serum lipids or lipoproteins. Clinically euthyroid subjects on replacement doses of thyroid hormone are eligible for enrollment.
Male
18 Years to 65 Years
No
Contact information is only displayed when the study is recruiting subjects
Canada
 
NCT00660075
SITA001
Yes
Patrick Couture, Laval University
Laval University
Merck Sharp & Dohme Corp.
Principal Investigator: Patrick Couture, MD, PhD Laval University
Laval University
November 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP