Effect of a Basal/Pre-Meal Insulin Strategy (Detemir/Aspart) on Insulin Secretion and Action in Type 2 Diabetes

Completed · Phase 4

Conditions studied: Type 2 Diabetes

In brief

The optimal insulin therapy in T2DM is controversial and its impact on nonalcoholic fatty liver disease (NAFLD) has not been systematically studied before, and in particular, never when using the new insulin formulations detemir (Levemir®) or aspart (Novolog®). This study is to determine the effect on hepatic steatosis and insulin secretion/action of lowering the fasting plasma glucose (FPG) to target with once daily basal insulin detemir alone or combining insulin detemir with premeal insulin aspart in patients with uncontrolled type 2 diabetes mellitus (T2DM). In the first 3 months the investigators will optimize metabolic control in all patients with intensive basal (bedtime) detemir insulin aiming at a normal fasting plasma glucose. After this treatment period, patients will be randomized in the second 3 months in a 2:1 ratio to insulin detemir or detemir plus aspart. The investigators propose that insulin will improve day-long glycemic control and A1c, reduce hepatic steatosis (NAFLD) (primary endpoint) and insulin secretion/sensitivity being well tolerated while causing minimal weight gain and hypoglycemia (secondary endpoints). The study will allow to assess if there is an additional benefit of adding pre-meal rapid-acting insulin aspart to basal insulin to these endpoints.

Key facts

Study ID

NCT00998335

Run by

University of Florida

People needed

30

Starts

2007-06-01

Expected to finish

2010-02-01

Last updated by the study team

2016-09-28

Who can join

Age: 18 and older, up to 70. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• To participate patients must:
• Be able to communicate meaningfully with the Investigator and be legally competent to provide written informed consent.
• Female patients must be non-lactating and must either be at least two years post-menopausal, or be using adequate contraceptive precautions (i.e. oral contraceptives, approved hormonal implant, intrauterine device, diaphragm with spermicide, condom with spermicide), or be surgically sterilized (i.e. bilateral tubal ligation, bilateral oophorectomy). Female patients who have undergone a hysterectomy are eligible for participation in the study. Female patients (except for those patients who have undergone a hysterectomy or a bilateral oophorectomy) are eligible only if they have a negative pregnancy test throughout the study period.
• Age range of 18 to 70 years (inclusive).
• Patients must have been on a stable dose of allowed chronic medications for two months prior to entering the double-blind treatment period.
• All participants must have the following laboratory values:
• Hemoglobin ≥ 12 g/dl in males or ≥ 11 g/dl in females
• Serum creatinine ≤ 1.5 mg/dl
• AST (SGOT) ≤ 2.5 times upper limit of normal
• ALT (SGPT) ≤ 2.5 times upper limit of normal
• Alkaline phosphatase ≤ 2.5 times upper limit of normal

You may not qualify if…

• Patients will be excluded if any of the following criteria are present:
• Individuals with type 1 diabetes or type 2 diabetes and a FPG ≥ 300 mg/dl.
• Subjects on sulfonylureas, metformin and/or TZDs unless the dose has been stable for at least 2 months prior to study entry.
• Patients on any of the following medications: thiazide or furosemide diuretics, beta-blockers, or other chronic medications with known adverse effects on glucose tolerance levels unless the patient has been on stable doses of such agents for the past two months before entry into the study. Patients may be taking stable doses of estrogens or other hormonal replacement therapy if the patient has been on these agents for the prior two months. Patients taking systemic glucocorticoids will be excluded.
• Past (within 1 year) or current history of alcohol abuse.
• Patients will be excluded if there is a history of clinically significant heart disease (New York Heart Classification greater than grade II), peripheral vascular disease (history of claudication), or pulmonary disease (dyspnea on exertion of one flight or less; abnormal breath sounds on auscultation) or chronic renal failure (serum creatinine greater than 1.5 mg/dl).

Where it is running

• The University of Texas H.S.C. at San Antonio and the San Antonio Audie L. Murphy VA Hospital — San Antonio, Texas, United States

Full record on ClinicalTrials.gov

Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.