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Type 1 DiabetesPhase 2NCT00456300

Role of Exenatide in Type 1 Diabetes

A Phase 2 study testing Exenatide and Insulin in people with Type 1 Diabetes, run by Montefiore Medical Center at 1 site in United States.

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

The purpose of this study is to see if giving exenatide and insulin before a meal would lower blood sugars after the meal. This study may help in developing new treatments to help control high blood sugars after meals. This may help improve overall blood sugar control and prevent the long-term effects of diabetes. Read more about this study

Who is it for?
Ages 12 to 21 years
Conditions the study is for
Type 1 Diabetes
What is being tested?
Exenatide and Insulin
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
11 participants
Where
1 siteUnited States
Study dates
Mar 2007to Mar 2009
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 12 to 21 years
  • All sexes
  • No healthy volunteers
  • Child, Adult

Who may be able to join

  • Subjects must be patients of the Texas Children's Hospital Diabetes Care Center.
  • All of the following criteria must be met:
  • Between 12-21 years of age at the time of enrollment.
  • Have been diagnosed with Type 1 diabetes for at least 1 year and in good control (HbA1C less than 8.5%).
  • Subjects must be otherwise healthy except for the Type 1 Diabetes and treated hypothyroidism.
  • Menstruating women must have a negative pregnancy test.
Show all 9Show fewer
  • Hemoglobin equal to or greater than 12 g/dL before each study.
  • Weight greater than 44 kg.
  • Tanner stage greater than 3

Who cannot join

  • Any chronic disease: leukemia, asthma, inflammatory bowel disease, cystic fibrosis, juvenile rheumatoid arthritis etc or on treatment that might directly or indirectly affect glucose homeostasis, except for diabetes and hypothyroidism; stable on medications.
  • Lack of a supportive family environment as detected by the clinicians and/or social workers.
  • Positive pregnancy test in menstruating young women.
  • BMI greater than 90th percentile for age or less than 10th percentile for age.
  • Lactating and nursing mothers.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Texas Children's Hospital/ Baylor College of Medicine

    Houston, Texas, 77030

Other trials in United States

About this study

Official title: The Role of Exenatide in Type 1 Diabetes Mellitus

The purpose of this study is to see if giving exenatide and insulin before a meal would lower blood sugars after the meal. This study may help in developing new treatments to help control high blood sugars after meals. This may help improve overall blood sugar control and prevent the long-term effects of diabetes.

Read the detailed description

A large study in people with type 1 diabetes (T1DM) showed that lowering blood sugars stopped or delayed the occurrence of health problems. As a result of the study, treatment should try to control blood sugars as near to normal as safely possible.

In people without diabetes, the "after meal" blood sugar level is very carefully controlled. Insulin (the hormone that lowers blood sugar) and glucagon (hormone that raises blood sugar) play a key role in keeping this careful balance. It is now known that a substance made by the body called GLP-1 also helps with this careful balance. Glucagon like peptide-1 works in four ways. First, it helps to stimulate the cells in the pancreas to produce more insulin. Secondly, it helps to "dampen" the glucagon response (glucagon is released after a meal and causes the blood sugar to rise). Thirdly, Glucagon like peptide-1 delays the digestion of food in the stomach. Lastly, it seems to "dampen" the appetite, which causes a person to eat less.

Exenatide is a medication that works very similar to Glucagon like peptide-1. Exenatide is FDA approved for use in adults.

Study Design: Followed by a baseline study with insulin alone, subjects were randomized to two different doses of exenatide (1.25 and 2.5 µ,g), administered in a double-blinded randomized controlled manner, along with insulin as a single subcutaneous injection. Studies were at least 3 weeks apart.

Baseline: At 0800 h, the pre-breakfast insulin bolus was administered based on patient's usual insulin-to-carbohydrate ratio. Post-bolus, subjects drank 12 ounces of a standard liquid meal (Boost High Protein Drink, 360 calories, 50 g carbohydrates, and 12 g fat), enriched with 1 g of [13C] glucose within 10 min. Breath samples for 13CO2 analysis were collected in duplicates at 17 time points until 1300 h. Usual insulin basal rates or glargine were maintained during study.

On the days subjects received the study drug of 1.25 µ,g (~0.02 µ,g/kg) or 2.5 µ,g (~0.04 µ,g/kg) exenatide along with insulin, the prandial insulin was reduced by 20%.

Measurements: Plasma glucose was measured using a bedside YSI glucose analyzer (2300 Stat Plus; Yellow Springs Instruments, Yellow Springs, OH) throughout the study at regularly timed intervals. Delta plasma glucose area under the curve (AUC0 -120) was measured for the exenatide treated groups vs. insulin monotherapy.

Conditions
Type 1 Diabetes
Being tested
Exenatide, Insulin
Keywords
Hypoglycemia, Hyperglycemia
Medical subject headings
Diabetes Mellitus, Type 1, Hypoglycemia, Hyperglycemia

What participants receive

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

  • ExenatideDrug

    Also called Byetta

    In each intervention arm the participant receives a different dose (1.25 or 2.5 mcg) of exenatide.

  • InsulinDrug

    Each subject received a baseline study with insulin alone

Study groups in NCT00456300
Study groupRoleWhat they receive
Exenatide 1.25 mcg + InsulinExperimentalIn each intervention arm the participant receives a different dose of Exenatide along with Insulin as a single subcutaneous injection
Receives: Drug: Exenatide; Drug: Insulin
Exenatide 2.5 mcg + InsulinExperimentalIn each intervention arm the participant receives a different dose of Exenatide along with Insulin as a single subcutaneous injection
Receives: Drug: Exenatide; Drug: Insulin
InsulinActive comparatorEach subject received a baseline study with insulin alone
Receives: Drug: Insulin

What is being measured

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

  1. Mean Plasma Glucose Area Under the Curve (AUC) for Blood Glucose Concentration in the Exenatide 1.25 mcg or Exenatide 2.5 mcg Treated Groups Along With Insulin, Compared to Insulin Alone

    Post-prandial blood glucose concentration in terms of mean AUC (0-120 min) was determined in subjects treated with either Exenatide 1.25 mcg or Exenatide 2.5 along with insulin, compared to insulin alone, given as a single subcutaneous injection

    Measured: 0-120 minutes post-dose

Timeline

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

  1. First posted4 Apr 2007 (estimated)
  2. Study startMar 2007
  3. Primary completionMar 2009
  4. Study completionMar 2009

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
11 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00456300
Sponsor's protocol ID
H-16488
Status last verified
Feb 2019
First submitted
3 Apr 2007
Last updated
26 Feb 2019
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Raman VS, Mason KJ, Rodriguez LM, Hassan K, Yu X, Bomgaars L, Heptulla RA. The role of adjunctive exenatide therapy in pediatric type 1 diabetes. Diabetes Care. 2010 Jun;33(6):1294-6. doi: 10.2337/dc09-1959. Epub 2010 Mar 23.

    PubMed 20332358

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Exenatide and Insulin in people with Type 1 Diabetes, run by Montefiore Medical Center at 1 site in United States.

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 9 inclusion and 5 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 26 Feb 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 26 Feb 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Mean Plasma Glucose Area Under the Curve (AUC) for Blood Glucose Concentration in the Exenatide 1.25 mcg or Exenatide 2.5 mcg Treated Groups Along With Insulin, Compared to Insulin Alone (time frame: 0-120 minutes post-dose). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00456300, which also lists 1 linked publication.

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 26 Feb 2019.

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