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SUSTAIN™ 6

CompletedPhase 3Results posted

Trial to Evaluate Cardiovascular and Other Long-term Outcomes With Semaglutide in Subjects With Type 2 Diabetes

A Long-term, Randomised, Double-blind, Placebo-controlled, Multinational, Multi-centre Trial to Evaluate Cardiovascular and Other Long-term Outcomes With Semaglutide in Subjects With Type 2 Diabetes (SUSTAIN™ 6 - Long-term Outcomes)

Lead sponsor

Novo Nordisk A/S

Asset

Semaglutide

Subcutaneous · GLP-1 agonist

Listed sites

253

Recruiting sites

Enrollment

3,297

actual

Study population

Cardiovascular disease, Type 2 diabetes

Key I/E criterion

Primary endpoint

3-point MACE (Cardiovascular death, Non-fatal MI, Non-fatal stroke)

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 IDNCT01720446
Org study IDNN9535-3744
Secondary ID2012-002839-28
Secondary IDU1111-1131-7227WHO

Timeline

Milestones

Study first posted2012-11-02estimated
Study start2013-02-21actual
Primary completion2016-03-15actual
Study completion2016-03-15actual
Results first posted2018-03-15actual
Last update posted2019-06-27actual

Assets

Investigational agents

Study populations

Who this study enrolls

Cardiovascular diseaseType 2 diabetes

Eligibility

Who can enroll

Minimum age50 Years
SexAll
Healthy volunteersNot accepted

Eligibility criteria

Men and women with type 2 diabetes mellitus - Age above or equal to 50 years at screening and clinical evidence of cardiovascular disease or age above or equal to 60 years at screening and subclinical evidence of cardiovascular disease - Anti-diabetic drug naïve, or treated with one or two oral antidiabetic drug (OADs), or treated with human Neutral Protamin Hagedorn (NPH) insulin or long-acting insulin analogue or pre-mixed insulin, both types of insulin either alone or in combination with one or two OADs - HbA1c above or equal to 7.0% at screening Exclusion Criteria: - Type 1 diabetes mellitus - Use of glucagon-like peptide-1 (GLP-1) receptor agonist (exenatide, liraglutide, or other) or pramlintide within 90 days prior to screening - Use of any dipeptidyl peptidase 4 (DPP-IV) inhibitor within 30 days prior to screening - Treatment with insulin other than basal and pre-mixed insulin within 90 days prior to screening - except for short-term use in connection with intercurrent illness - Acute decompensation of glycaemic control requiring immediate intensification of treatment to prevent acute complications of diabetes (eg diabetes ketoacidosis) within 90 days prior to screening - History of chronic pancreatitis or idiopathic acute pancreatitis - Acute coronary or cerebro-vascular event within 90 days prior to randomisation - Currently planned coronary, carotid or peripheral artery revascularisation - Chronic heart failure New York Heart Association (NYHA) class IV - Personal or family history of multiple endocrine neoplasia type 2 (MEN2) or familial medullary thyroid carcinoma - Personal history of non-familial medullary thyroid carcinoma - Screening calcitonin above or equal to 50 ng/L

Endpoints (32)

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

Cardiovascular outcomes
8
Cardiometabolic biomarkers
8
Safety / tolerability / PK
6
Glycemic / diabetes
4
Weight & body composition
2
Renal / kidney
2
Patient-reported / QoL
2

Cardiovascular outcomes

8 endpoints
Primary/registry result

Time From Randomisation to First Occurrence of a MACE, Defined as Cardiovascular Death, Non-fatal Myocardial Infarction, or Non-fatal Stroke

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

3-point MACE

time to event, event

componentsCardiovascular death, Non-fatal MI, Non-fatal stroke

Posted result

GroupValue (number), percentage of subjects95% CI
Semaglutide6.6
Placebo8.9
Hazard Ratio (HR)0.7495% CI0.580.95p<0.0001Regression, Cox
Hazard Ratio (HR)0.7495% CI0.580.95p0.0167Regression, Cox
Primary/protocol endpoint

Time From Randomisation to First Occurrence of a MACE, Defined as Cardiovascular Death, Non-fatal Myocardial Infarction, or Non-fatal Stroke

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

3-point MACE

time to event, event

componentsCardiovascular death, Non-fatal MI, Non-fatal stroke

Secondary/registry result

Time From Randomisation to First Occurrence of an Expanded Composite Cardiovascular Outcome

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

Expanded / custom MACE composite

time to event, event

components3-point MACE, Coronary revascularization, Peripheral revascularization, Unstable angina hospitalization, Heart-failure hospitalization

Posted result

GroupValue (number), percentage of subjects95% CI
Semaglutide12.1
Placebo16.0
Hazard Ratio (HR)0.7495% CI0.620.89p0.0016Regression, Cox
Secondary/registry result

Time From Randomisation to Each Individual Component of the Expanded Composite Cardiovascular Outcome

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

Expanded / custom MACE composite

time to event, event

components3-point MACE, Coronary revascularization, Peripheral revascularization, Unstable angina hospitalization, Heart-failure hospitalization

Posted result

GroupValue (number), percentage of subjects95% CI
SemaglutideCardiovascular death1.6
Non-fatal MI2.5
Non-fatal Stroke1.5
Revascularisation2.6
UAP requiring hospitalisation1.1
Hospitalisation for heart failure2.7
PlaceboCardiovascular death1.9
Non-fatal MI3.7
Non-fatal Stroke2.5
Revascularisation4.2
UAP requiring hospitalisation1.3
Hospitalisation for heart failure2.4
Hazard Ratio (HR)0.9895% CI0.651.48p0.9181Regression, Cox
Hazard Ratio (HR)0.7495% CI0.511.08p0.1194Regression, Cox
Hazard Ratio (HR)0.6195% CI0.380.99p0.0438Regression, Cox
Hazard Ratio (HR)0.6595% CI0.500.86p0.0027Regression, Cox
Hazard Ratio (HR)0.8295% CI0.471.44p0.4914Regression, Cox
Hazard Ratio (HR)1.1195% CI0.771.61p0.5735Regression, Cox
Secondary/registry result

Time From Randomisation to First Occurrence of All-cause Death, Non-fatal MI, or Non-fatal Stroke

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

Expanded / custom MACE composite

time to event, event

componentsAll-cause death, Non-fatal MI, Non-fatal stroke

Posted result

GroupValue (number), percentage of subjects95% CI
Semaglutide7.4
Placebo9.6
Hazard Ratio (HR)0.7795% CI0.610.97p0.0292Regression, Cox
Secondary/protocol endpoint

Time From Randomisation to First Occurrence of an Expanded Composite Cardiovascular Outcome

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

Expanded / custom MACE composite

time to event, event

components3-point MACE, Coronary revascularization, Peripheral revascularization, Unstable angina hospitalization, Heart-failure hospitalization

Secondary/protocol endpoint

Time From Randomisation to Each Individual Component of the Expanded Composite Cardiovascular Outcome

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

time to event, event

Secondary/protocol endpoint

Time From Randomisation to First Occurrence of All-cause Death, Non-fatal MI, or Non-fatal Stroke

Time frame:Time from randomisation up to end of follow-up (scheduled at week 109)

Expanded / custom MACE composite

time to event, event

componentsAll-cause death, Non-fatal MI, Non-fatal stroke

Weight & body composition

2 endpoints
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Body Weight

Time frame:Week 0, up to week 104

Body weight, absolute change (kg)

change from baseline, improvement

Posted result

GroupValue (least_squares_mean), kg95% CI
Semaglutide 0.5 mg-3.57
Semaglutide 1.0 mg-4.88
Placebo-0.62
Treatment difference-2.9595% CI-3.47-2.44p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Treatment difference-4.2795% CI-4.78-3.75p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Body Weight

Time frame:Week 0, up to week 104

Body weight, absolute change (kg)

change from baseline, improvement

Glycemic / diabetes

4 endpoints
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Glycosylated Haemoglobin (HbA1c)

Time frame:Week 0, up to week 104

HbA1c, change

change from baseline, improvement

LOINC 4548-4

Posted result

GroupValue (least_squares_mean), percentage of glycosylated haemoglobin95% CI
Semaglutide 0.5 mg-1.09
Semaglutide 1.0 mg-1.41
Placebo 0.5 mg-0.44
Placebo 1.0 mg-0.36
Treatment difference-0.6695% CI-0.80-0.52p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Treatment difference-1.0595% CI-1.19-0.91p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Fasting Plasma Glucose

Time frame:Week 0, up to week 104

Fasting glucose, change

change from baseline, improvement

LOINC 1558-6

Posted result

GroupValue (least_squares_mean), mmol/L95% CI
Semaglutide 0.5 mg-1.75
Semaglutide 1.0 mg-2.11
Placebo 0.5 mg-1.02
Placebo 1.0 mg-0.88
Treatment difference-0.7295% CI-1.06-0.38p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Treatment difference-1.2295% CI-1.56-0.88p<0.0001Mixed Models Analysis

Analysis was done using a mixed model for repeated measurements with treatment (4 levels) and stratification (9 levels) as fixed factors and baseline value as covariate, all nested within visit.

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Glycosylated Haemoglobin (HbA1c)

Time frame:Week 0, up to week 104

HbA1c, change

change from baseline, improvement

LOINC 4548-4

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Fasting Plasma Glucose

Time frame:Week 0, up to week 104

Fasting glucose, change

change from baseline, improvement

LOINC 1558-6

Renal / kidney

2 endpoints
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Urinary Albumin to Creatinine Ratio

Time frame:Week 0, up to week 104

uACR, change

ratio, improvement

LOINC 9318-7

Posted result

GroupValue (least_squares_mean), mg/g95% CI
Semaglutide 0.5 mg1.02
Semaglutide 1.0 mg0.91
Placebo 0.5 mg1.32
Placebo 1.0 mg1.29
Treatment ratio0.7895% CI0.680.89p0.0003Mixed Models Analysis
Treatment ratio0.7195% CI0.620.81p<0.0001Mixed Models Analysis
Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Urinary Albumin to Creatinine Ratio

Time frame:Week 0, up to week 104

uACR, change

change from baseline, improvement

LOINC 9318-7

Cardiometabolic biomarkers

8 endpoints
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Lipid Profile

Time frame:Week 0, up to week 104

ratio, improvement

componentsTotal cholesterol, change, HDL-C, change, LDL-C, change, Triglycerides, change

Posted result

GroupValue (least_squares_mean), mg/dL95% CI
Semaglutide 0.5 mgTotal cholesterol (mg/dL)0.97
HDL-cholesterol (mg/dL)0.99
LDL-cholesterol (mg/dL)0.97
Triglycerides (mg/dL)0.93
Semaglutide 1.0 mgTotal cholesterol (mg/dL)0.97
HDL-cholesterol (mg/dL)1.01
LDL-cholesterol (mg/dL)0.98
Triglycerides (mg/dL)0.92
Placebo 0.5 mgTotal cholesterol (mg/dL)1.00
HDL-cholesterol (mg/dL)0.99
LDL-cholesterol (mg/dL)1.01
Triglycerides (mg/dL)0.96
Placebo 1.0 mgTotal cholesterol (mg/dL)0.99
HDL-cholesterol (mg/dL)0.97
LDL-cholesterol (mg/dL)0.99
Triglycerides (mg/dL)0.98
Treatment ratio0.9795% CI0.951.00p0.0149Mixed Models Analysis
Treatment ratio0.9995% CI0.971.01p0.2580Mixed Models Analysis
Treatment ratio1.0095% CI0.991.02p0.8106Mixed Models Analysis
Treatment ratio1.0495% CI1.021.06p<0.0001Mixed Models Analysis
Treatment ratio0.9695% CI0.930.99p0.0185Mixed Models Analysis
Treatment ratio0.9995% CI0.961.03p0.5996Mixed Models Analysis
Treatment ratio0.9795% CI0.931.01p0.1833Mixed Models Analysis
Treatment ratio0.9395% CI0.890.97p0.0009Mixed Models Analysis
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Vital Signs

Time frame:Week 0, up to week 104

Systolic BP, change

change from baseline, improvement

LOINC 8480-6

Posted result

GroupValue (least_squares_mean), mmHg95% CI
Semaglutide 0.5 mgDiastolic blood pressure (mmHg)-1.37
Systolic blood pressure (mmHg)-3.44
Semaglutide 1.0 mgDiastolic blood pressure (mmHg)-1.57
Systolic blood pressure (mmHg)-5.37
Placebo 0.5 mgDiastolic blood pressure (mmHg)-1.42
Systolic blood pressure (mmHg)-2.17
Placebo 1.0 mgDiastolic blood pressure (mmHg)-1.71
Systolic blood pressure (mmHg)-2.78
Treatment difference0.0495% CI-0.830.92p0.9205Mixed Models Analysis
Treatment difference0.1495% CI-0.741.03p0.7477Mixed Models Analysis
Treatment difference-1.2795% CI-2.770.23p0.0976Mixed Models Analysis
Treatment difference-2.5995% CI-4.09-1.08p0.0008Mixed Models Analysis
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Lipid Profile (Free Fatty Acids)

Time frame:Week 0, up to week 104

Free fatty acids, change

change from baseline, improvement

Posted result

GroupValue (least_squares_mean), mmol/L95% CI
Semaglutide 0.5 mg0.95
Semaglutide 1.0 mg0.91
Placebo 0.5 mg0.96
Placebo 1.0 mg0.99
Treatment ratio0.9995% CI0.951.04p0.7796Mixed Models Analysis
Treatment ratio0.9295% CI0.880.96p0.0003Mixed Models Analysis
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Vital Signs (Pulse Rate)

Time frame:Week 0, up to week 104

Heart rate, change

change from baseline, improvement

Posted result

GroupValue (least_squares_mean), beats/min95% CI
Semaglutide 0.5 mg2.12
Semaglutide 1.0 mg2.41
Placebo 0.5 mg0.09
Placebo 1.0 mg-0.07
Treatment difference2.0295% CI1.072.98p<0.0001Mixed Models Analysis
Treatment difference2.4795% CI1.523.43p<0.0001Mixed Models Analysis
Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Lipid Profile

Time frame:Week 0, up to week 104

ratio, improvement

componentsTotal cholesterol, change, HDL-C, change, LDL-C, change, Triglycerides, change

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Vital Signs

Time frame:Week 0, up to week 104

Systolic BP, change

change from baseline, improvement

LOINC 8480-6

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Lipid Profile (Free Fatty Acids)

Time frame:Week 0, up to week 104

Free fatty acids, change

ratio, improvement

Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Vital Signs (Pulse Rate)

Time frame:Week 0, up to week 104

Heart rate, change

change from baseline, improvement

Patient-reported / QoL

2 endpoints
Secondary/registry result

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Patient Reported Outcome (PRO)

Time frame:Week 0, up to week 104

SF-36 total

change from baseline, improvement

Posted result

GroupValue (least_squares_mean), Scores on a scale95% CI
Semaglutide 0.5 mgBodily pain0.66
General health1.66
Mental component summary0.0
Mental health0.48
Physical component summary0.76
Physical functioning0.42
Role-emotional0.17
Role-physical0.39
Social functioning-0.25
Vitality0.29
Semaglutide 1.0 mgBodily pain1.82
General health2.55
Mental component summary0.86
Mental health1.08
Physical component summary1.74
Physical functioning1.12
Role-emotional0.89
Role-physical1.18
Social functioning0.97
Vitality1.55
Placebo 0.5 mgBodily pain0.16
General health0.78
Mental component summary-0.17
Mental health-0.14
Physical component summary0.07
Physical functioning-0.38
Role-emotional-0.36
Role-physical-0.33
Social functioning-0.20
Vitality-0.04
Placebo 1.0 mgBodily pain0.35
General health1.13
Mental component summary-0.11
Mental health-0.31
Physical component summary0.35
Physical functioning-0.37
Role-emotional-0.05
Role-physical0.03
Social functioning-0.17
Vitality0.35
Treatment difference0.5095% CI-0.481.47p0.3171Mixed Models Analysis
Treatment difference1.4795% CI0.502.45p0.0031Mixed Models Analysis
Treatment difference0.8795% CI0.061.69p0.0350Mixed Models Analysis
Treatment difference1.4295% CI0.602.24p0.0007Mixed Models Analysis
Treatment difference0.1795% CI-0.791.13p0.7277Mixed Models Analysis
Treatment difference0.9795% CI0.001.94p0.0489Mixed Models Analysis
Treatment Difference0.6195% CI-0.301.53p0.1860Mixed Models Analysis
Treatment difference1.3995% CI0.482.31p0.0029Mixed Models Analysis
Treatment difference0.6895% CI-0.091.45p0.0833Mixed Models Analysis
Treatment difference1.4095% CI0.622.17p0.0004Mixed Models Analysis
Treatment difference0.8095% CI-0.101.69p0.0799Mixed Models Analysis
Treatment difference1.5095% CI0.602.40p0.0011Mixed Models Analysis
Treatment difference0.5395% CI-0.631.68p0.3717Mixed Models Analysis
Treatment difference0.9495% CI-0.222.10p0.1136Mixed Models Analysis
Treatment difference0.7295% CI-0.241.67p0.1431Mixed Models Analysis
Treatment difference1.1495% CI0.182.11p0.0197Mixed Models Analysis
Treatment difference-0.0595% CI-1.030.93p0.9223Mixed Models Analysis
Treatment difference1.1495% CI0.152.13p0.0237Mixed Models Analysis
Treatment difference0.3395% CI-0.531.19p0.4523Mixed Models Analysis
Treatment difference1.2095% CI0.342.07p0.0064Mixed Models Analysis
Secondary/protocol endpoint

Change From Baseline to Last Assessment in the Trial in Other Treatment Outcomes: Patient Reported Outcome (PRO)

Time frame:Week 0, up to week 104

SF-36 total

change from baseline, improvement

Safety / tolerability / PK

6 endpoints
Secondary/registry result

Incidence During the Trial in Other Treatment Outcomes: Hypoglycaemic Events

Time frame:Week 0 - 109

Documented hypoglycemia

event count, event

componentsSevere hypoglycemia, Documented hypoglycemia

Posted result

GroupValue (number), Event rate per 100 exposure years95% CI
Semaglutide 0.5 mg37.5
Semaglutide 1.0 mg36.2
Placebo 0.5 mg35.3
Placebo 1.0 mg39.7
Secondary/registry result

Incidence During the Trial in Other Treatment Outcomes: Adverse Events

Time frame:Weeks 0-109

Treatment-emergent AEs (any)

event count, event

Posted result

GroupValue (number), Event rate per 100 years of exposure95% CI
Semaglutide 0.5 mg330.5
Semaglutide 1.0 mg337.0
Placebo 0.5 mg317.4
Placebo 1.0 mg298.3
Secondary/registry result

Occurrence During the Trial in Other Treatment Outcomes: Anti-semaglutide Antibodies

Time frame:Weeks 0-109

Immunogenicity (ADA)

threshold achievement, event

Posted result

GroupValue (number), Percentage of subjects95% CI
Semaglutide 0.5 mg1.4
Semaglutide 1.0 mg2.3
Secondary/protocol endpoint

Incidence During the Trial in Other Treatment Outcomes: Hypoglycaemic Events

Time frame:Week 0 - 109

Documented hypoglycemia

event count, event

componentsSevere hypoglycemia, Documented hypoglycemia

Secondary/protocol endpoint

Incidence During the Trial in Other Treatment Outcomes: Adverse Events

Time frame:Weeks 0-109

Treatment-emergent AEs (any)

event count, event

Secondary/protocol endpoint

Occurrence During the Trial in Other Treatment Outcomes: Anti-semaglutide Antibodies

Time frame:Weeks 0-109

Immunogenicity (ADA)

threshold achievement, event

Publications (24)

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.