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Type 1 DiabetesNCT00927524

Insulin Exposure and Glucose Response to Meals in Type 1 Diabetic Subjects Administered Two Different Insulin Regimens Compared to the Endogenous Insulin Exposure and Glucose Response to Meals In Healthy Adult Controls

A study testing Insulin glulisine and Insulin in people with Type 1 Diabetes, run by Vanderbilt University.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Intensive control of Type 1 Diabetes is critical in prevention of long term complications. Unfortunately, there is a three-fold increase in hypoglycemia with intensive control. Hypoglycemia is often the major limiting factor in achieving good control. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Type 1 Diabetes
What is being tested?
Insulin glulisine and Insulin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
No sites listed yet
Study dates
Apr 2005to Dec 2010
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Diabetic Subjects
  • 12 adults (males or females) with Type 1 Diabetes, aged 18 to 55 years.
  • C-peptide-negative
  • Body mass index < 29.0 kg/m2
  • Healthy Subjects
  • 12 non-smoking adults (males or females), aged 18 to 55 years
  • Normal response to an oral glucose tolerance test (OGTT)
  • Body mass index < 29.0 kg/m2

Who cannot join

  • Diabetic Subjects
  • Hemoglobin A1c >9%
  • Total daily insulin requirements >0.8 units/kg actual body weight
  • History of hypoglycemia that required the subject to see medical attention (i.e., doctor's office visit, ER visit, or EMT/paramedic attention) within 6 months of the study.
  • History of acute metabolic complications within 3 months of the study
  • History of lipodystrophy.
Show all 24Show fewer
  • History of or suspected diabetic gastroparesis or current treatment with any drugs known to affect gastrointestinal motility.
  • Inability or unwillingness to administer subcutaneous insulin injections in the abdomen.
  • Any past or present clinically relevant abnormality, medical condition, or circumstance making the subject unsuitable for participation in the study.
  • Active peptic ulcer disease or a history of gastrointestinal surgery within the last 6 months years.
  • History of malignancy (except basal cell carcinoma and carcinoma in situ) within the last 5 years.
  • 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.
  • History of alcoholism or drug abuse within 12 months of the study.
  • Is the investigator, sub-investigator, research assistant, pharmacist, study coordinator, other study staff, or relative thereof directly involved in the conduct of this protocol.
  • Healthy Subjects
  • Hemoglobin A1c >6.0%
  • Any past or present clinically relevant abnormality, medical condition, or circumstance making the subject unsuitable for participation in the study.
  • Historical, clinical, or laboratory evidence of liver disease including but not limited to transaminase activity concentrations >2.5 times the upper limit of the reference range.
  • Current treatment with any drugs known to affect gastrointestinal motility.
  • Active peptic ulcer disease or a history of gastrointestinal surgery within the last 6 months.
  • History of malignancy (except basal cell carcinoma and carcinoma in situ) within the last 5 years.
  • 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.
  • History of alcoholism or drug abuse within 12 months of the study.
  • Is the investigator, sub-investigator, research assistant, pharmacist, study coordinator, other study staff, or relative thereof directly involved in the conduct of this protocol.

About this study

Official title: An Open-Label, Randomized, Two-Period, Crossover Study to Characterize the Insulin Exposure and Glucose Response to Meals in Type 1 Diabetic Subjects Administered Two Different Insulin Regimens Compared to the Endogenous Insulin Exposure and Glucose Response to Meals In Healthy Adult Controls

Intensive control of Type 1 Diabetes is critical in prevention of long term complications. Unfortunately, there is a three-fold increase in hypoglycemia with intensive control. Hypoglycemia is often the major limiting factor in achieving good control. Insulin treatment of diabetes is composed of some form of short acting insulin regimen in order to provide control of blood glucose excursions that are the result of glucose intake as well as a basal insulin regimen either in a continuous administration (as in continuous subcutaneous insulin infusion-"pump therapy"), once a day injection (insulin Glargine), twice a day (ultralente or NPH or lente insulin) or a premixed version that is combined with the short acting insulin (70/30 or 75/25). Often low blood sugars are the result of less physiologically absorbed insulins whose peak of action is earlier or later than the peak absorption of glucose from a meal.

Apidra (glulisine insulin) is a new short acting insulin analogue whose peak and duration of action are ideal in that it may be administered more appropriately prior to and even after a meal with evidence of good control of blood glucose excursions from a meal. The purpose of this study is to compare the effect of Apidra upon meal related blood glucose profile as compared to those treated with 70/30 insulin in patients with Type 1 Diabetes. The investigators also will study healthy volunteers as controls who will not be treated with insulin but will be evaluated for mealtime absorption and blood glucose profile during similar meal intake. The investigators will use a stable isotope tritiated glucose.

Read the detailed description

Intensive control of Type 1 Diabetes is critical in prevention of long term complications. Unfortunately, there is a three-fold increase in hypoglycemia with intensive control. Hypoglycemia is often the major limiting factor in achieving good control. Insulin treatment of diabetes is composed of some form of short acting insulin regimen in order to provide control of blood glucose excursions that are the result of glucose intake as well as a basal insulin regimen either in a continuous administration (as in continuous subcutaneous insulin infusion-"pump therapy"), once a day injection (insulin Glargine), twice a day (ultralente or NPH or lente insulin) or a premixed version that is combined with the short acting insulin (70/30 or 75/25). Often low blood sugars are the result of less physiologically absorbed insulins whose peak of action is earlier or later than the peak absorption of glucose from a meal.

Apidra (glulisine insulin) is a new short acting insulin analogue whose peak and duration of action are ideal in that it may be administered more appropriately prior to and even after a meal with evidence of good control of blood glucose excursions from a meal. The purpose of this study is to compare the effect of Apidra upon meal related blood glucose profile as compared to those treated with 70/30 insulin in patients with Type 1 Diabetes. We also will study healthy volunteers as controls who will not be treated with insulin but will be evaluated for mealtime absorption and blood glucose profile during similar meal intake. We will use a stable isotope tritiated glucose.

Conditions
Type 1 Diabetes
Being tested
Insulin glulisine, Insulin
Keywords
Insulin analogs, diabetes
Medical subject headings
Diabetes Mellitus, Type 1, Diabetes Mellitus

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Insulin glulisineDrug

    Also called Apidra

    Dose injection of insulin glargine (Lantus®) given subcutaneously in the abdomen 1 hour prior to breakfast and a dose of insulin glulisine (Apidra®) at a dose based upon your (body wt.) carbohydrate intake for each of the three meals (breakfast, lunch and dinner).

  • InsulinDrug

    Also called Humalog 70/30

    Dose based on carbohydrate intake given subcutaneously in the abdomen prior to breakfast and dinner.

Study groups in NCT00927524
Study groupRoleWhat they receive
Apidra (insulin glulisine)Active comparatorAdministration of Apidra at three meals during a 24 hour period.
Receives: Drug: Insulin glulisine
70/30 insulinActive comparatorAdministration of 73/30 insulin at three meals during a 24 hour period.
Receives: Drug: Insulin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Insulin levels

    Measured: 24 hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Jun 2009 (estimated)
  2. Study startApr 2005
  3. Primary completionApr 2006
  4. Study completionDec 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00927524
Sponsor's protocol ID
050116
Status last verified
Dec 2014
First submitted
23 Jun 2009
Last updated
11 Dec 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Insulin glulisine and Insulin in people with Type 1 Diabetes, run by Vanderbilt University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 24 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 11 Dec 2014. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Insulin levels (time frame: 24 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Dec 2014.

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