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The Effect of Liraglutide on Endothelial Function in Subjects With Type 2 Diabetes Mellitus
The Effect of Liraglutide on Endothelial Function in Subjects With Type 2 Diabetes Mellitus: A 12-week Randomized, Double-blind, Placebo-controlled, Parallel-group, Single-center Trial With an Open-label Glimepiride Arm
Lead sponsor
Asset
Liraglutide
Subcutaneous · GLP-1 agonist
Listed sites
1
Recruiting sites
—
Enrollment
49
actual
Study population
Type 2 diabetes
Key I/E criteria
•BMI ≤40•HbA1c 6.5-9%
Primary endpoint
•Acetylcholine (ACh)-Mediated Forearm Blood Flow (FBF)
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
Timeline
Milestones
Assets
Investigational agents
Study populations
Who this study enrolls
Eligibility
Who can enroll
Inclusion criteria
Exclusion criteria
Endpoints (28)
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
Weight & body composition
2 endpointsChange in Body Weight
Time frame:week 0, week 12
Body weight, absolute change (kg)
change from baseline, improvement
Posted result
| Group | Value (least_squares_mean), kg | 95% CI |
|---|---|---|
| Lira 1.8 | -1.821 | — |
| Placebo | -0.293 | — |
| Glimepiride | 1.038 | — |
Change in Body Weight
Time frame:week 0, week 12
Body weight, absolute change (kg)
change from baseline, improvement
Glycemic / diabetes
6 endpointsChange in HbA1c (Glycosylated Haemoglobin A1c)
Time frame:week 0, week 12
HbA1c, change
change from baseline, improvement
LOINC 4548-4
Posted result
| Group | Value (least_squares_mean), percentage of total haemoglobin | 95% CI |
|---|---|---|
| Lira 1.8 | -0.629 | — |
| Placebo | -0.094 | — |
| Glimepiride | -0.552 | — |
Change in HbA1c from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HbA1c as a covariate.
Change in HbA1c from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HbA1c as a covariate.
Change in HbA1c from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HbA1c as a covariate.
Change in Fasting Plasma Glucose (FPG)
Time frame:week 0, week 12
Fasting glucose, change
change from baseline, improvement
LOINC 1558-6
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | -41.672 | — |
| Placebo | -6.067 | — |
| Glimepiride | -32.019 | — |
Change in FPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FPG as a covariate.
Change in FPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FPG as a covariate.
Change in FPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FPG as a covariate.
Change in Mean Postprandial Glucose (PPG) Based on Self-measured 7-point Plasma Glucose Profiles
Time frame:week 0, week 12
Postprandial glucose
change from baseline, improvement
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | -32.175 | — |
| Placebo | -20.304 | — |
| Glimepiride | -35.99 | — |
Change in PPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline PPG as a covariate.
Change in PPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline PPG as a covariate.
Change in PPG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline PPG as a covariate.
Change in HbA1c (Glycosylated Haemoglobin A1c)
Time frame:week 0, week 12
HbA1c, change
change from baseline, improvement
LOINC 4548-4
Change in Fasting Plasma Glucose (FPG)
Time frame:week 0, week 12
Fasting glucose, change
change from baseline, improvement
LOINC 1558-6
Change in Mean Postprandial Glucose (PPG) Based on Self-measured 7-point Plasma Glucose Profiles
Time frame:week 0, week 12
Postprandial glucose
change from baseline, improvement
Cardiometabolic biomarkers
12 endpointsChange in Acetylcholine (ACh)-Mediated Forearm Blood Flow (FBF)
Time frame:week 0, week 12
change from baseline, improvement
Posted result
| Group | Value (least_squares_mean), mL/100 mL/min | 95% CI |
|---|---|---|
| Lira 1.8 | 4.244 | — |
| Placebo | -3.187 | — |
| Glimepiride | 2.164 | — |
Change in Ach-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Change in Ach-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Change in Ach-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Change in Sodium Nitroprusside (SNP)-Mediated Forearm Blood Flow (FBF)
Time frame:week 0, week 12
change from baseline, improvement
Posted result
| Group | Value (least_squares_mean), mL/100 mL/min | 95% CI |
|---|---|---|
| Lira 1.8 | 3.455 | — |
| Placebo | -1.044 | — |
| Glimepiride | 2.746 | — |
Change in SNP-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Change in SNP-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Change in SNP-mediated FBF from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline FBF as a covariate.
Fasting Lipid Profile - Change in Total Cholesterol (TC)
Time frame:week 0, week 12
Total cholesterol, change
change from baseline, improvement
LOINC 2093-3
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | 2.006 | — |
| Placebo | 4.243 | — |
| Glimepiride | 0.094 | — |
Change in TC from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TC as a covariate.
Change in TC from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TC as a covariate.
Change in TC from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TC as a covariate.
Fasting Lipid Profile - Change in LDL-C
Time frame:week 0, week 12
LDL-C, change
change from baseline, improvement
LOINC 13457-7
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | 1.243 | — |
| Placebo | -2.459 | — |
| Glimepiride | -1.529 | — |
Change in LDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline LDL-C as a covariate.
Change in LDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline LDL-C as a covariate.
Change in LDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline LDL-C as a covariate.
Fasting Lipid Profile - Change in HDL-C
Time frame:week 0, week 12
HDL-C, change
change from baseline, improvement
LOINC 2085-9
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | 0.393 | — |
| Placebo | 0.562 | — |
| Glimepiride | 1.116 | — |
Change in HDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HDL-C as a covariate.
Change in HDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HDL-C as a covariate.
Change in HDL-C from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline HDL-C as a covariate.
Fasting Lipid Profile - Change in Triglycerides (TG)
Time frame:week 0, week 12
Triglycerides, change
change from baseline, improvement
LOINC 2571-8
Posted result
| Group | Value (least_squares_mean), mg/dL | 95% CI |
|---|---|---|
| Lira 1.8 | -8.163 | — |
| Placebo | 28.546 | — |
| Glimepiride | -4.377 | — |
Change in TG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TG as a covariate.
Change in TG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TG as a covariate.
Change in TG from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TG as a covariate.
Biomarkers of Cardiovascular Risk - Change in TNF-alpha
Time frame:week 0, week 12
change from baseline, improvement
Posted result
| Group | Value (least_squares_mean), pg/mL | 95% CI |
|---|---|---|
| Lira 1.8 | -0.024 | — |
| Placebo | 0.397 | — |
| Glimepiride | -0.0050 | — |
Change in TNF-alpha from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TNF-alpha as a covariate.
Change in TNF-alpha from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TNF-alpha as a covariate.
Change in TNF-alpha from baseline to end of treatment at 12 weeks was analysed using an analysis of covariance (ANCOVA) model with treatment as a fixed effect and baseline TNF-alpha as a covariate.
Fasting Lipid Profile - Change in Total Cholesterol (TC)
Time frame:week 0, week 12
Total cholesterol, change
change from baseline, improvement
LOINC 2093-3
Fasting Lipid Profile - Change in LDL-C
Time frame:week 0, week 12
LDL-C, change
change from baseline, improvement
LOINC 13457-7
Fasting Lipid Profile - Change in HDL-C
Time frame:week 0, week 12
HDL-C, change
change from baseline, improvement
LOINC 2085-9
Fasting Lipid Profile - Change in Triglycerides (TG)
Time frame:week 0, week 12
Triglycerides, change
change from baseline, improvement
LOINC 2571-8
Biomarkers of Cardiovascular Risk - Change in TNF-alpha
Time frame:week 0, week 12
change from baseline, improvement
Safety / tolerability / PK
6 endpointsHaematology and Biochemistry Tests - Number of Subjects With Blood Urea Nitrogen (BUN) Values Outside Reference Range
Time frame:week 0, week 12
threshold achievement, event
Posted result
| Group | Value (number), participants | 95% CI |
|---|---|---|
| Lira 1.8Week 0 | 1 | — |
| Week 12 | 1 | — |
| PlaceboWeek 0 | 0 | — |
| Week 12 | 2 | — |
| GlimepirideWeek 0 | 1 | — |
| Week 12 | 0 | — |
Haematology and Biochemistry Tests - Number of Subjects With Creatinine Values Outside Reference Range
Time frame:week 0, week 12
threshold achievement, event
Posted result
| Group | Value (number), participants | 95% CI |
|---|---|---|
| Lira 1.8Week 0 | 1 | — |
| Week 12 | 1 | — |
| PlaceboWeek 0 | 3 | — |
| Week 12 | 2 | — |
| GlimepirideWeek 0 | 5 | — |
| Week 12 | 2 | — |
Number of Hypoglycaemic Episodes
Time frame:weeks 0-12
Documented hypoglycemia
event count, event
Posted result
| Group | Value (number), episodes | 95% CI |
|---|---|---|
| Lira 1.8Major | 0 | — |
| Minor | 1 | — |
| Symptoms Only | 3 | — |
| PlaceboMajor | 0 | — |
| Minor | 0 | — |
| Symptoms Only | 0 | — |
| GlimepirideMajor | 0 | — |
| Minor | 10 | — |
| Symptoms Only | 4 | — |
Haematology and Biochemistry Tests - Number of Subjects With Blood Urea Nitrogen (BUN) Values Outside Reference Range
Time frame:week 0, week 12
threshold achievement, event
Haematology and Biochemistry Tests - Number of Subjects With Creatinine Values Outside Reference Range
Time frame:week 0, week 12
threshold achievement, event
Number of Hypoglycaemic Episodes
Time frame:weeks 0-12
Documented hypoglycemia
event count, event
Other (unclassified)
2 endpointsChange in Acetylcholine (ACh)-Mediated Forearm Blood Flow (FBF)
Time frame:week 0, week 12
change from baseline, improvement
Change in Sodium Nitroprusside (SNP)-Mediated Forearm Blood Flow (FBF)
Time frame:week 0, week 12
change from baseline, improvement
Publications (3)
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
- Diabetes & vascular disease research2014 Nov (month)PMID25212693doi:10.1177/1479164114547358via CT.gov reference + pubmed nct search
- Diabetes research and clinical practice2012 Nov (month)PMID23010561doi:10.1016/j.diabres.2012.09.008via CT.gov reference
Provenance
Sources
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.