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Type 2 Diabetes MellitusPhase 4NCT00729326

Comparison of the Effect of Exenatide Versus Sitagliptin on 24-hour Average Glucose in Patients With Type 2 Diabetes on Metformin or a Thiazolidinedione

A Phase 4 study testing exenatide and sitagliptin in people with Type 2 Diabetes Mellitus, run by AstraZeneca 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

This study is designed to compare the short-term effects and mechanisms of action of exenatide with those of sitagliptin when either is added to an oral agent(metformin or a thiazolidinedione [TZD]) in adult patients with type 2 diabetes mellitus(T2DM) with inadequate glycemic control. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Type 2 Diabetes Mellitus
What is being tested?
exenatide and sitagliptin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
83 participants
Where
1 siteUnited States
Study dates
Aug 2008to Oct 2009
Phase
Phase 4
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 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Have type 2 diabetes
  • Has HbA1c 7.0% to 11.0%, at or within 4 weeks prior to Visit 1.
  • Have a fasting glucose concentration <280 mg/dL at Visit 1
  • Have been treated with a stable dose of immediate or extended release metformin for at least 60 days prior to screening OR TZD (rosiglitazone or pioglitazone) for at least 120 days prior to screening.
  • Are between 18 and 70 years of age, inclusive.
  • Have body mass index ≥25 kg/m2 and ≤45 kg/m2.
  • Have a history of stable body weight (not varying by >10% for at least 3 months prior to screening).
  • Can swallow oral study drug capsule, without splitting or crushing.

Who cannot join

  • Female patients of childbearing potential (not surgically sterilized and between menarche and 1 year postmenopause) who meet any of the following criteria:
  • Are breastfeeding.
  • Test positive for pregnancy at the time of screening.
  • Intend to become pregnant during the study.
  • Have not practiced a reliable method of birth control (for example, use of oral contraceptives or Norplant®; diaphragms with contraceptive jelly; cervical caps with contraceptive jelly; condoms with contraceptive foam; intrauterine devices; partner with vasectomy; or abstinence) for 3 months prior to screening.
  • Treated with any of the following medications:
Show all 18Show fewer
  • Insulin, exenatide, pramlintide, sulfonylureas or meglitinides within 3 months of screening
  • Alpha-glucosidase inhibitor within 2 months of screening.
  • Drugs that directly affect gastrointestinal motility, including, but not limited to metoclopramide, cisapride, and chronic macrolide antibiotics.
  • Use of a drug for weight loss (for example, prescription drugs such as orlistat, sibutramine, phentermine, or similar over-the-counter medications) within 3 months prior to Visit 1.
  • Systemic corticosteroids by oral, intravenous, or intramuscular route within 2 months of screening.
  • Have a history of renal transplantation or are currently receiving renal dialysis.
  • Have obvious clinical signs or symptoms of liver disease or acute or chronic hepatitis.
  • Have known active proliferative retinopathy or macular edema expected to need treatment with focal photocoagulation within 3 months.
  • Have an active or untreated malignancy, or have been in remission from clinically significant malignancy (other than basal cell or squamous cell skin cancer, in situ carcinomas of the cervix, or in situ prostate cancer) for less than 5 years.
  • Have had organ transplantation.
  • Have received GLP-1 analogs other than exenatide or DPP-4 inhibitors within the previous 3 months.
  • Have received treatment within the last 30 days with a drug that has not received regulatory approval for any indication at the time of study entry.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Research Site

    San Antonio, Texas

Other trials in United States

About this study

Official title: Comparison of the Effect of Exenatide vs. Sitagliptin on 24-hour Average Glucose in Patients With Type 2 Diabetes on Metformin or a Thiazolidinedione

This study is designed to compare the short-term effects and mechanisms of action of exenatide with those of sitagliptin when either is added to an oral agent(metformin or a thiazolidinedione [TZD]) in adult patients with type 2 diabetes mellitus(T2DM) with inadequate glycemic control.

Being tested
exenatide, sitagliptin, placebo
Keywords
diabetes, exenatide, sitagliptin, Amylin, Lilly, metformin, thiazolidinedione
Medical subject headings
Diabetes Mellitus, Type 2, Diabetes Mellitus

What participants receive

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

  • exenatideDrug

    Also called Byetta

    subcutaneous injection (5mcg or 10mcg), twice a day

  • sitagliptinDrug

    Also called Januvia

    oral administration (100mg), once a day in the morning

  • placeboDrug

    subcutaneous injection (5mcg or 10mcg), twice a day

  • placeboDrug

    oral administration (100mg), once a day in the morning

Study groups in NCT00729326
Study groupRoleWhat they receive
Sequence AExperimentalNot described
Receives: Drug: exenatide; Drug: sitagliptin; Drug: placebo
Sequence BExperimentalNot described
Receives: Drug: exenatide; Drug: sitagliptin; Drug: placebo

What is being measured

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

  1. Change in Time-averaged Glucose During a 24 Hour Period

    Change in time-averaged glucose during a 24-hour period from baseline to endpoint (i.e., time-averaged glucose over 24 hours at endpoint minus time-averaged glucose over 24 hours at baseline).

    Measured: baseline and 8 Weeks

Secondary outcomes (18)
  1. Change in Two-hour Postprandial Glucose After the Morning Meal

    Change in 2 hour post-prandial glucose after the morning meal from baseline to endpoint (i.e., glucose level 2 hours after the morning meal at baseline minus glucose level 2 hours after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  2. Change in Fasting Blood Glucose After the Morning Meal

    Change in fasting blood glucose after the morning meal from baseline to endpoint (i.e., fasting blood glucose after the morning meal at baseline minus fasting blood glucose after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  3. Change in Postprandial Glucagon Area Under the Concentration-time Curve (AUC) After the Morning Meal

    Change in Postprandial Glucagon AUC after the morning meal (t=0 to 4 hours) (i.e., Glucagon AUC over the first 4 hours following the morning meal at baseline minus glucagon AUC over the first 4 hours following the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  4. Change in Postprandial Glucagon AUC Excursion After the Morning Meal

    Change in postprandial glucagon AUC excursion after the morning meal (t=0 to 4 hours) (i.e., glucagon AUC excursion for 4 hours following the morning meal at baseline minus glucagon AUC excursion for 4 hours following the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  5. Change in Postprandial Triglyceride AUC After the Morning Meal

    Change in postprandial triglyceride AUC after the morning meal (t=0 to 4 hours) (i.e., postprandial triglyceride AUC after the morning meal at baseline minus postprandial triglyceride AUC after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  6. Change in Postprandial Triglyceride AUC Excursion After the Morning Meal

    Change in postprandial triglyceride AUC excursion after the morning meal (t=0 to 4 hours) (i.e., postprandial triglyceride AUC excursion after the morning meal at baseline minus postprandial triglyceride AUC excursion after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  7. Change in Postprandial C-peptide AUC After the Morning Meal

    Change in postprandial C-peptide AUC after the morning meal (t=0 to 4 hours) (i.e., postprandial C-peptide AUC after the morning meal at baseline minus postprandial C-peptide AUC after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  8. Change in Postprandial C-peptide AUC Excursion After the Morning Meal

    Change in Postprandial C-peptide AUC excursion after the morning meal (t=0 to 4 hours) (i.e., postprandial C-peptide AUC excursion after the morning meal at baseline minus postprandial C-peptide AUC excursion after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  9. Change in Postprandial Insulin AUC After the Morning Meal

    Change in postprandial insulin AUC after the morning meal (t=0 to 4 hours) (i.e., postprandial insulin AUC after the morning meal at baseline minus postprandial insulin AUC after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  10. Change in Postprandial Insulin AUC Excursion After the Morning Meal

    Change in Postprandial insulin AUC excursion after the morning meal (t=0 to 4 hours) (i.e., postprandial insulin AUC excursion after the morning meal at baseline minus postprandial insulin AUC excursion after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  11. Change in Postprandial Active GLP-1 AUC After the Morning Meal

    Change in Postprandial active GLP-1 AUC after the morning meal (t=0 to 4 hours) (i.e., postprandial active GLP-1 AUC after the morning meal at baseline minus postprandial active GLP-1 AUC after the morning meal at endpoint)

    Measured: baseline and 8 Weeks

  12. Change in Postprandial Active GLP-1 AUC Excursion After the Monrning Meal

    Change in Postprandial active GLP-1 AUC excursion after the morning meal (t=0 to 4 hours) (i.e., postprandial active GLP-1 AUC excursion after the morning meal at baseline minus postprandial active GLP-1 AUC excursion after the morning meals at endpoint)

    Measured: baseline and 8 Weeks

  13. Percentage of Patients Experiencing Hypoglycemia (Baseline to Week 4)

    Percentage of patients experiencing minor hypoglycemia with a confirmed glucose <54mg/dL

    Measured: 4 Weeks

  14. Episodes of Hypoglycemia (Baseline to Week 4)

    Number of episodes of hypoglycemia experienced during the first 4 weeks of the study

    Measured: 4 weeks

  15. Percentage of Patients Experiencing Hypoglycemia (Week 4 to Week 8)

    Percentage of patients experiencing minor hypoglycemia with a confirmed glucose <54mg/dL

    Measured: 8 weeks

  16. Episodes of Hypoglycemia (Week 4 to Week 8)

    Number of episodes of hypoglycemia experienced between week 4 and week 8 of the study

    Measured: 8 weeks

  17. Percentage of Patients Experiencing Hypoglycemia (Overall)

    Percentage of patients experiencing minor hypoglycemia with a confirmed glucose <54mg/dL

    Measured: 4 weeks and 8 weeks

  18. Episodes of Hypoglycemia (Overall)

    Number of episodes of hypoglycemia experienced overall during the study

    Measured: 4 weeks and 8 weeks

Timeline

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

  1. First posted7 Aug 2008 (estimated)
  2. Study startAug 2008
  3. Primary completionOct 2009
  4. Study completionOct 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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
83 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00729326
Sponsor's protocol ID
H8O-US-GWCV
Status last verified
Mar 2015
First submitted
4 Aug 2008
Last updated
9 Apr 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing exenatide and sitagliptin in people with Type 2 Diabetes Mellitus, run by AstraZeneca 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 8 inclusion and 18 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 9 Apr 2015. 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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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 20 Jan 2011). 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?

Change in Time-averaged Glucose During a 24 Hour Period (time frame: baseline and 8 Weeks). 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 9 Apr 2015.

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