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CompletedNCT00574912Updated Apr 17, 2017Results posted

Characteristics of Glargine in Type 2 Diabetics

A Phase 1 interventional study of Placebo and Insulin Glargine 0.5 u/kg body wt SC in Type 2 Diabetes, sponsored by Vanderbilt University Medical Center. Completed at 1 site in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2017-04-17.

Sponsored by Vanderbilt University Medical Center · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

The study is to determine the dose response relationship of insulin glargine in type 2 diabetes over a 24-hour period and measuring the differences in glucose production among the differing doses of glargine.

Hypothesis: Differing doses of insulin glargine over a 24-hour period in type 2 diabetes will show differing effects on endogenous glucose production, glucose disposal and carbohydrate and lipid flux.

Read the detailed description

The incidence of type 2 DM is increasing worldwide at an alarming rate. Unfortunately, the number of individuals with glycemic control at or below the American Diabetes Association goal of 7% has dropped. In fact, the number of patients with their important cardiometabolic risk factors of glucose, lipids and blood pressure at goal is only 7%. One of the reasons for this lack of metabolic control in type 2 DM is the continued relative underutilization of insulin. Diabetes is an insulin deficient state and requires appropriate physiologic replacement of insulin. Physiologic replacement of insulin requires a basal component to restrain overnight endogenous glucose production, lipolysis and proteolysis. The other component involves prandial insulin to regulate post prandial glucose levels. Recently, insulin glargine was introduced as a once-a-day peakless basal insulin. This form of basal insulin reproduces the normal constitutive physiologic release of insulin from the pancreas. Insulin glargine represents a breakthrough in treatment as the previous available "basal insulins" either produced peaks of activity (which are disadvantageous as this results in hypoglycemia) or do not last 24 hrs which results in post absorbative hyperglycemia. Despite the undoubted advantages of insulin glargine, there remains a lack of information regarding some aspects of glargine action. The study objectives are: 1) to determine the pharmacokinetic and pharmacodynamic dose response relationship of insulin glargine in Type 2 DM; 2) partition the dose response relationship of insulin glargine on endogenous glucose production and glucose uptake in Type 2 DM; and 3) to determine if the pharmacokinetic and pharmacodynamics of insulin glargine are consistent over a wide range of doses.

02

Conditions studied

  • Type 2 Diabetes

Keywords

  • Type 2 diabetes
  • Insulin Glargine
  • Endogenous Glucose Production
03

In context

Diabetes Mellitus, Type 2

9,359 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,318 are open to participants now.

This study's enrollment of 20 is below the median of 80 across 7,525 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Vanderbilt University Medical Center is the lead sponsor of 824 studies on the registry; 164 are open to participants now.

Of its 122 completed or terminated interventional studies of FDA-regulated products, 91 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 12 adults (males or females) with type 2 diabetes for at least six (6) months. May be using oral agents (SUs, metformin, acarbose or glitinides) with or without insulin.
  • HgbA1c 7 -12%
  • Age 18-70 years
  • BMI 27-40 kg/m²

Exclusion criteria

Exclusion Criteria:

  • Any past or present clinically relevant abnormality, medical condition, or circumstance making the subject unsuitable for participation in the study
  • Evidence of hepatic, renal or cardiac failure
  • Abnormal results following screening tests
  • Pregnant or lactating females or females of childbearing potential who are unwilling to abstain from sexual intercourse or use reliable, medically accepted methods of contraception
  • Currently using TZDs
  • History of alcoholism or drug abuse within 12 months of the study
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Placebo then Insulin Glargine

    Placebo: administer single dose of Placebo subcutaneously (SC) with blood glucose monitoring over 24 hours. Then Insulin Glargine SQ 8 weeks later, in increasing doses (0.5, 1.0, 1.5, 2.0 u/kg body wt.) with blood glucose monitoring monitoring over a 24 hour period. Each dose is separated by 8 weeks (5 separate study visits)

    Drug: Placebo · Drug: Insulin Glargine 0.5 u/kg body wt SC · Drug: Insulin Glargine 1.0 u/kg body wt SC · Drug: Insulin Glargine 1.5 u/kg body wt SC · Drug: Insulin Glargine 2.0 u/kg body wt SC

Interventions

  • DrugPlacebo

    single dose of Placebo injected s/c at 8am and monitor blood glucose over 24 hours

    Also known as: Lantus

  • DrugInsulin Glargine 0.5 u/kg body wt SC

    8 weeks later, a differing dose (0.5, 1.0, 1.5, 2.0 u/kg body wt.) of Insulin Glargine and monitoring over a 24 hour period each separated by 8 weeks (5 separate study visits)

    Also known as: Lantus

  • DrugInsulin Glargine 1.0 u/kg body wt SC

    Also known as: Lantus

  • DrugInsulin Glargine 1.5 u/kg body wt SC

    Also known as: Lantus

  • DrugInsulin Glargine 2.0 u/kg body wt SC

    Also known as: Lantus

06

What researchers measure

Primary outcomes

  1. Maximum Glucose Infusion Rate

    measuring the changes in glucose infusion rate during the 24 hour experimental period.

    Time frame: 24 hours

07

Results

Posted Aug 3, 2015

Participant flow

12 individuals will be their own controls completing 5 separate 24 hour protocol studies. If a participant does not complete all protocols, another person will be recruited to complete the protocols until there are 12 completed studies in each arm/group.

Participant flow — Overall Study
Milestone1 All Interventions
Started20
Completed placebo12
Completed 0.512
Completed 1.012
Completed 1.512
Completed 2.012
Completed12
Not completed8
Withdrew: Could not place iv lines.3
Withdrew: Scheduling conflicts3
Withdrew: Physician decision2

Outcome measures

PrimaryMaximum Glucose Infusion Rate

measuring the changes in glucose infusion rate during the 24 hour experimental period.

Time frame:
24 hours
Reported as:
Mean · umol/kg/min
Maximum Glucose Infusion Rate
umol/kg/minPlacebo0.5 Units of Glargine/kg1.0 Units of Glargine/kg1.5 Units of Glargine/kg2.0 Units of Glargine/kg
Maximum Glucose Infusion Rate0.3 ± 0.32.6 ± 0.95.5 ± 1.56.8 ± 2.09.5 ± 2.1
Statistical analysis
  • Placebo vs 0.5 Units of Glargine/kg vs 1.0 Units of Glargine/kg vs 1.5 Units of Glargine/kg vs 2.0 Units of Glargine/kg · ANOVA · p = <0.05

Adverse events

Collected over 2 years. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo—0/12 (0%)0/12 (0%)
0.5 Units of Glargine/kg Body Weight—0/12 (0%)0/12 (0%)
1 Unit of Glargine/kg Body Weight—0/12 (0%)0/12 (0%)
1.5 Units of Glargine/kg Body Weight—0/12 (0%)0/12 (0%)
2.0 Units of Glargine/kg Body Weight—0/12 (0%)0/12 (0%)

Baseline characteristics

One participant may have received more than one intervention.

Age, Categorical
Age, Categorical(Participants)1--All Interventions
<=18 years0
Between 18 and 65 years20
>=65 years0
Sex: Female, Male
Sex: Female, Male(Participants)1--All Interventions
Female10
Male10
Region of Enrollment
Region of Enrollment(participants)1--All Interventions
United States20
08

Study locations

1 site
  • Vanderbilt University
    Nashville, Tennessee 37232, United States
09

References and documents

Publications

  • Wang Z, Hedrington MS, Gogitidze Joy N, Briscoe VJ, Richardson MA, Younk L, Nicholson W, Tate DB, Davis SN. Dose-response effects of insulin glargine in type 2 diabetes. Diabetes Care. 2010 Jul;33(7):1555-60. doi: 10.2337/dc09-2011. Epub 2010 Mar 31. PubMed 20357371 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 17, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00574912
Lead sponsor
Vanderbilt University Medical Center
Collaborators
Sanofi
Responsible party
Steve Davis (Chairman of Medicine, University of Maryland, Baltimore, Vanderbilt University Medical Center) — Principal investigator
First posted
Dec 17, 2007
Start date
Mar 2007
Primary completion
Sep 2009
Completion
Jan 2010
Results posted
Aug 3, 2015
Last update
Apr 17, 2017

Study contacts

Stephen N. Davis, MD, FRCP
principal investigator · Vanderbilt University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2017. You cannot join it, but the record below documents what was studied.

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