← Trials/Trial dossier/NCT00641056

CompletedPhase 3Results posted

Efficacy of Exenatide Once Weekly and Once-Daily Insulin Glargine in Patients With Type 2 Diabetes Treated With Metformin Alone or in Combination With Sulfonylurea (DURATION - 3)

Efficacy of Once-Weekly Exenatide Long-Acting Release and Once-Daily Insulin Glargine in Patients With Type 2 Diabetes Treated With Metformin Alone or in Combination With Sulfonylurea

Lead sponsor

AstraZeneca

Asset

Exenatide

Subcutaneous · GLP-1 agonist

Listed sites

75

Recruiting sites

Enrollment

467

actual

Study population

Type 2 diabetes

Key I/E criteria

BMI 25-45HbA1c 7.1-11%

Primary endpoint

HbA1c, change

Footprint

Where this trial recruits

Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.

Identifiers

Registered as

NCT IDNCT00641056
Org study IDH8O-MC-GWBR (DURATION - 3)

Timeline

Milestones

Study first posted2008-03-21estimated
Results first posted2012-07-04estimated
Last update posted2015-06-15estimated
Study start2008-04 (month precision)
Primary completion2009-05actual (month precision)
Study completion2009-11actual (month precision)

Assets

Investigational agents

Study populations

Who this study enrolls

Type 2 diabetes

Eligibility

Who can enroll

Minimum age18 Years
SexAll
Healthy volunteersNot accepted

Inclusion criteria

Has type 2 diabetes and at least 18 years of age at screening.
Hemoglobin A1c (HbA1c) of 7.1% to 11.0%, inclusive, at screening.
Body mass index (BMI) of 25 kg/m2 to 45 kg/m2, inclusive, at screening.
Have a history of stable body weight (not varying by >5% for at least 3 months prior to screening).
Have been treated with metformin(Met) for at least 3 months and have been taking a stable dose for at least 8 weeks prior to screening OR
Have been treated with metformin(Met) for at least 3 months and have been taking a stable dose for at least 8 weeks prior to screening and have been treated with SU for at least 3 months and have been taking a stable dose of at least an optimally effective dose of brand of SU for 8 weeks prior to screening.

Exclusion criteria

Have had a clinically significant history of cardiac disease or presence of active cardiac disease within the year prior to inclusion in the study, including myocardial infarction, clinically significant arrhythmia, unstable angina, moderate to severe congestive heart failure, coronary artery bypass surgery, or angioplasty; or is expected to require coronary artery bypass surgery or angioplasty during the course of the study.
Have clinical signs or symptoms of liver disease, acute or chronic hepatitis.
Have a history of renal transplantation or are currently receiving renal dialysis.
Have 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 greater than three episodes of major hypoglycemia within 6 months prior to screening.
Have any contraindication for the oral antidiabetic agent which they use.
Have a known allergy or hypersensitivity to insulin glargine, exenatide once weekly, or excipients contained in these agents.
Are known to have active proliferative retinopathy.
Have been treated with drugs that promote weight loss (e.g., Xenical® [orlistat], Meridia® [sibutramine], Acomplia® [rimonabant], Acutrim® [phenylpropanolamine], or similar over-the-counter medications) within 3 months of screening.
Have been treated for longer than 2 weeks with any of the following excluded medications within 3 months prior to screening:
Insulin
Thiazolidinediones (e.g., Actos® [pioglitazone] or Avandia® [rosiglitazone])
Alpha-glucosidase inhibitors (e.g., Glyset® [miglitol] or Precose® [acarbose])
Meglitinides (e.g., Prandin® [repaglinide] or Starlix® [nateglinide]).
Byetta® (exenatide BID formulation)
Dipeptidyl peptidase (DPP)-4 inhibitors (e.g., Januvia™ [sitagliptin], Galvus® [vildagliptin])
Symlin® (pramlintide acetate).
Have had an organ transplant.
Have donated blood within 30 days of screening.
Have previously completed or withdrawn from this study or any other study investigating exenatide once weekly.
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.
Are currently enrolled in any other clinical study.

Endpoints (10)

What's being measured

Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.

Coverage by outcome category

Glycemic / diabetes
4
Cardiometabolic biomarkers
4
Weight & body composition
1
Safety / tolerability / PK
1

Weight & body composition

1 endpoint
Secondary/protocol endpoint

Change in Body Weight (BW) From Baseline to Week 26

Time frame:Baseline, Week 26

Body weight, absolute change (kg)

change from baseline, improvement

Posted result

GroupValue (least_squares_mean), kg95% CI
Exenatide Once Weekly-2.63
Insulin Glargine1.42
Least Squares Mean Difference-4.0595% CI-4.57-3.52p<.001Mixed Models Analysis

Glycemic / diabetes

4 endpoints
Primary/protocol endpoint

Change in HbA1c From Baseline to Week 26

Time frame:Baseline, Week 26

HbA1c, change

change from baseline, improvement

LOINC 4548-4

Posted result

GroupValue (least_squares_mean), percentage of total hemoglobin95% CI
Exenatide Once Weekly-1.47
Insulin Glargine-1.31
Least Squares Mean Difference-0.1695% CI-0.29-0.03p0.017Mixed Models Analysis
Secondary/protocol endpoint

Percentage of Patients Achieving HbA1c <=7.0% at Week 26

Time frame:Baseline, Week 26

HbA1c <7.0% achievement

threshold achievement, improvement

LOINC 4548-4

Posted result

GroupValue (number), percentage of patients95% CI
Exenatide Once Weekly62.2
Insulin Glargine54.1
p0.097Cochran-Mantel-Haenszel
Secondary/protocol endpoint

Percentage of Patients Achieving HbA1c <=6.5% at Week 26

Time frame:Baseline, Week 26

HbA1c <6.5% achievement

threshold achievement, improvement

LOINC 4548-4

Posted result

GroupValue (number), percentage of patients95% CI
Exenatide Once Weekly43.2
Insulin Glargine28.4
p0.002Cochran-Mantel-Haenszel

Percentage of patients achieving HbA1c \<=6.5% at Week 26 were compared between treatments using a CMH test, in which background OAD and country served as the stratification factors.

Secondary/protocol endpoint

Change in Fasting Serum Glucose (FSG) From Baseline to Week 26

Time frame:Baseline, Week 26

Fasting glucose, change

change from baseline, improvement

LOINC 1558-6

Posted result

GroupValue (least_squares_mean), mmol/L95% CI
Exenatide Once Weekly-2.13
Insulin Glargine-2.76
Least Squares Mean Difference0.6395% CI0.251.00p0.001Mixed Models Analysis

Cardiometabolic biomarkers

4 endpoints
Secondary/protocol endpoint

Change in Total Cholesterol From Baseline to Week 26

Time frame:Baseline, Week 26

Total cholesterol, change

change from baseline, improvement

LOINC 2093-3

Posted result

GroupValue (least_squares_mean), mmol/L95% CI
Exenatide Once Weekly-0.12
Insulin Glargine-0.04
Least Squares Mean Difference-0.0795% CI-0.210.06p0.292Mixed Models Analysis
Secondary/protocol endpoint

Change in High-density Lipoprotein Cholesterol (HDL) From Baseline to Week 26

Time frame:Baseline, Week 26

HDL-C, change

change from baseline, improvement

LOINC 2085-9

Posted result

GroupValue (least_squares_mean), mmol/L95% CI
Exenatide Once Weekly-0.00
Insulin Glargine0.01
Least Squares Mean Difference-0.0295% CI-0.050.02p0.377Mixed Models Analysis
Secondary/protocol endpoint

Ratio of Triglycerides at Week 26 to Baseline

Time frame:Baseline, Week 26

Triglycerides, change

ratio, improvement

LOINC 2571-8

Posted result

GroupValue (least_squares_mean), ratio95% CI
Exenatide Once Weekly0.96
Insulin Glargine0.89
Geometric Least Squares Mean Ratio1.0795% CI0.991.15p0.077Mixed Models Analysis
Secondary/protocol endpoint

Change in Blood Pressure From Baseline to Week 26

Time frame:Baseline, Week 26

Systolic BP, change

change from baseline, improvement

LOINC 8480-6

Posted result

GroupValue (mean), mmHg95% CI
Exenatide Once WeeklySystolic Blood Pressure-3.03
Diastolic Blood Pressure-1.15
Insulin GlargineSystolic Blood Pressure-0.63
Diastolic Blood Pressure-0.72

Safety / tolerability / PK

1 endpoint
Secondary/protocol endpoint

Assessment on Event Rate of Treatment-emergent Hypoglycemic Episodes

Time frame:Baseline to Week 26

Documented hypoglycemia

event count, event

Posted result

GroupValue (mean), rate per subject-year95% CI
Exenatide Once Weekly With SUMajor Hypoglycemia0.00
Minor Hypoglycemia1.14
Insulin Glargine With SUMajor Hypoglycemia0.03
Minor Hypoglycemia2.66
Exenatide Once Weekly No SUMajor Hypoglycemia0.01
Minor Hypoglycemia0.10
Insulin Glargine No SUMajor Hypoglycemia0.01
Minor Hypoglycemia0.63

Publications (7)

Bibliography

Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.

Registry references + supporting bibliography

Provenance

Sources

Trial identity, design, statusClinicalTrials.gov API v2
Snapshot dateJuly 1, 2026
Endpoint classificationDelfa endpoint taxonomy v2 (May 13, 2026)
Results tableClinicalTrials.gov results section

Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.