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The Efficacy of Insulin Degludec/Liraglutide as add-on Therapy in Controlling Glycaemia in Adults With Type 2 Diabetes Inadequately Controlled on Sulphonylurea With or Without Metformin Therapy

The Efficacy of Insulin Degludec/Liraglutide as add-on Therapy in Controlling Glycaemia in Adults With Type 2 Diabetes Inadequately Controlled on Sulphonylurea With or Without Metformin Therapy

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01618162
Acronym
DUAL™IV
Enrollment
435
Registered
2012-06-13
Start date
2012-08-29
Completion date
2013-10-23
Last updated
2017-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes, Diabetes Mellitus, Type 2

Brief summary

This trial is conducted in Asia, Europe and the United States of America (USA). The aim of this trial is to investigate the efficacy and safety of insulin degludec/liraglutide in insulin naïve subjects inadequately controlled with SU (sulphonylurea) alone or in combination with metformin. All subjects will continue their pre-trial SU treatment with or without metformin treatment without changing the frequency or dose throughout the trial.

Interventions

DRUGinsulin degludec/liraglutide

Injected subcutaneously (under the skin) once daily. Dose individually adjusted.

DRUGplacebo

Injected subcutaneously (under the skin) once daily.

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects with type 2 diabetes mellitus * HbA1c 7.0-9.0% (53-75 mmol/mol) (both inclusive) * Subjects on stable daily dose of sulphonylurea (above or equal to half of the max approved dose according to local label) with or without metformin (above or equal to 1500 mg or max tolerated dose) for at least 90 days prior to screening visit (Visit 1) * Body Mass Index (BMI) below or equal to 40 kg/m\^2

Exclusion criteria

* Any use of oral anti-diabetic drugs (OADs) (other than SU in monotherapy or in combinationwith metformin) below or equal to 90 days prior to screening visit (Visit 1) * Use of any drug (other than SU in monotherapy or in combination with metformin), which in the Investigators opinion could interfere with the blood glucose level (e.g. systemic corticosteroids) * Previous treatment with glucagon-like peptide-1 (GLP-1) receptor agonist (e.g. exenatide, liraglutide) * Treatment with any insulin regimen (short term treatment due to intercurrent illness including gestational diabetes is allowed at the discretion of the Investigator) * Screening calcitonin above or equal to 50 ng/l * Personal or family history of medullary thyroid carcinoma (MTC) or multiple endocrine neoplasia type 2 (MEN2) * Cardiovascular disorders defined as: congestive heart failure (New York Heart Association (NYHA) class III-IV), diagnosis of unstable angina pectoris, cerebral stroke and/or myocardial infarction within the past 52 weeks prior to screening visit (Visit 1) and/or planned coronary,carotid or peripheral artery revascularisation procedures * Proliferative retinopathy requiring acute treatment or maculopathy (macular oedema) according to the Investigator's opinion * Subjects with a clinical significant, active (during the past 12 months) disease of the gastrointestinal, pulmonary, endocrinological (except for the Type 2 Diabetes Mellitus),neurological, genitourinary or haematological system that in the opinion of the Investigator,may confound the results of the trial or pose additional risk in administering trial product * History of chronic pancreatitis or idiopathic acute pancreatitis

Design outcomes

Primary

MeasureTime frameDescription
Change in Glycosylated Haemoglobin (HbA1c)Week 0, Week 26Change in HbA1c from baseline to 26 weeks.

Secondary

MeasureTime frameDescription
Number of Adverse Events (AEs)After 26 weeks of treatmentAn AE was any unfavourable and unintended sign (including an abnormal laboratory finding), symptom or disease temporally associated with the use of a product, whether or not considered related to the product. Reported values are hypoglycemia event rate per 100 PYE.
Responders Achieving Pre-defined Target: HbA1c Below 7.0% (53 mmol/Mol)Week 26Percentage of subjects having HbA1c below 7% at week 26.
Number of Treatment Emergent (Confirmed) Hypoglycaemic EpisodesAfter 26 weeks of treatmentAn event was treatment emergent if the onset of the episode occurs after the first administration of trial product and no later than 7 days after last trial product administration. Confirmed hypoglycaemic episodes were defined as hypoglycaemic episodes that were either severe or minor. Minor hypoglycaemic episodes were defined as: 1. An episode with symptoms consistent with hypoglycaemia and confirmed by blood glucose value \<2.8 mmol/L (50 mg/dL) or plasma glucose \<3.1 mmol/L (56 mg/dL) and which was handled by the subject himself/herself. 2. Any asymptomatic PG value \<3.1 mmol/L (56 mg/dL) or blood glucose value \<2.8 mmol/L (50 mg/dL). Severe hypoglycemia was defined as an episode requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions. Reported values are hypoglycemia event rate per 100 patient-years of exposure (PYE).
Change From Baseline in Fasting Plasma Glucose (FPG)Week 0, week 26Change from baseline in FPG at week 26.
Change From Baseline in Body WeightWeek 0, week 26Change from baseline in body weight at week 26.
Responders Achieving Pre-defined Target: HbA1c Below or Equal to 6.5% (48 mmol/Mol)Week 26Percentage of subjects having HbA1c below 6.5% at week 26

Countries

Bulgaria, Canada, Germany, India, Israel, Puerto Rico, Turkey (Türkiye), United States

Participant flow

Recruitment details

The trial was conducted at 77 sites in 7 countries: Bulgaria (7), Canada (9), Germany (6), India (6), Israel (7), Turkey (3), United States (39).

Pre-assignment details

The trial included a 2 week screening period to assess subject eligibility.

Participants by arm

ArmCount
IDegLira
In this arm, Subjects suboptimally controlled on SU +/- metformin, were given s.c. injection of IDegLira. SU and metformin were maintained at the stable pre-trial dose throughout the duration of the trial. IDegLira was injected in the thigh, upper arm (deltoid region) or abdomen once daily preferably at the same time every day. The injection area chosen remained unchanged throughout the trial, but rotation within the area was recommended. Treatment with IDegLira was initiated at 10 dose steps containing 10 units insulin degludec and 0.36 mg liraglutide. Adjustment of the IDegLira dose was performed twice weekly based on the mean of 3 preceding daily fasting SMPG values on 3 consecutive days (fasting glycaemic target of 4.0-6.0 mmol/L).
289
Placebo
In this arm, subjects suboptimally controlled on SU +/- metformin, were given s.c. injection of placebo solution (matched to IDegLira) and was initiated and titrated as described for IDegLira. SU and metformin were maintained at the stable pre-trial dose throughout the duration of the trial. Placebo solution was injected in the thigh, upper arm (deltoid region) or abdomen once daily preferably at the same time every day. The injection area chosen remained unchanged throughout the trial, but rotation within the area was recommended. Adjustment of placebo was performed twice weekly based on the mean of 3 preceding daily fasting SMPG values on 3 consecutive days (fasting glycaemic target of 4.0-6.0 mmol/L).
146
Total435

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event92
Overall StudyProtocol Violation1310
Overall StudyUnclassified1413
Overall StudyWithdrawal Criteria210

Baseline characteristics

CharacteristicIDegLiraPlaceboTotal
Age, Continuous60 years
STANDARD_DEVIATION 9.6
59.4 years
STANDARD_DEVIATION 10.8
59.8 years
STANDARD_DEVIATION 10
Body weight87.2 kilograms
STANDARD_DEVIATION 18.6
89.3 kilograms
STANDARD_DEVIATION 17.5
87.9 kilograms
STANDARD_DEVIATION 18.2
Fasting plasma glucose9.1 mmol/L
STANDARD_DEVIATION 2.2
9.1 mmol/L
STANDARD_DEVIATION 2.1
9.1 mmol/L
STANDARD_DEVIATION 2.1
Glycosylated haemoglobin7.9 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.6
7.9 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.6
7.9 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.6
Sex: Female, Male
Female
135 Participants73 Participants208 Participants
Sex: Female, Male
Male
154 Participants73 Participants227 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
83 / 28838 / 146
serious
Total, serious adverse events
14 / 2885 / 146

Outcome results

Primary

Change in Glycosylated Haemoglobin (HbA1c)

Change in HbA1c from baseline to 26 weeks.

Time frame: Week 0, Week 26

Population: Full analysis set.

ArmMeasureValue (MEAN)Dispersion
IDegLiraChange in Glycosylated Haemoglobin (HbA1c)-1.45 percentage of glycosylated haemoglobinStandard Deviation 0.84
PlaceboChange in Glycosylated Haemoglobin (HbA1c)-0.46 percentage of glycosylated haemoglobinStandard Deviation 0.83
Comparison: Superiority of IDegLira versus placebo therapy would be concluded if the 95% CI for the treatment differences for change in HbA1c lied entirely below 0%; implying that the two-sided p-value calculated by the ANCOVA model for testing the hypothesis of no difference between treatments was less than 5%.p-value: <0.00195% CI: [-1.18, -0.87]ANCOVA
Secondary

Change From Baseline in Body Weight

Change from baseline in body weight at week 26.

Time frame: Week 0, week 26

Population: Full analysis set.

ArmMeasureValue (MEAN)Dispersion
IDegLiraChange From Baseline in Body Weight0.5 kilogramStandard Deviation 3.1
PlaceboChange From Baseline in Body Weight-1 kilogramStandard Deviation 2.6
Secondary

Change From Baseline in Fasting Plasma Glucose (FPG)

Change from baseline in FPG at week 26.

Time frame: Week 0, week 26

Population: Full analysis set. Number of subjects analyzed=subjects with data available for FPG.

ArmMeasureValue (MEAN)Dispersion
IDegLiraChange From Baseline in Fasting Plasma Glucose (FPG)-2.6 mmol/LStandard Deviation 2.61
PlaceboChange From Baseline in Fasting Plasma Glucose (FPG)-0.31 mmol/LStandard Deviation 2.43
Secondary

Number of Adverse Events (AEs)

An AE was any unfavourable and unintended sign (including an abnormal laboratory finding), symptom or disease temporally associated with the use of a product, whether or not considered related to the product. Reported values are hypoglycemia event rate per 100 PYE.

Time frame: After 26 weeks of treatment

Population: Safety analysis set.

ArmMeasureValue (NUMBER)
IDegLiraNumber of Adverse Events (AEs)401.4 event rate per 100 PYE
PlaceboNumber of Adverse Events (AEs)367 event rate per 100 PYE
Secondary

Number of Treatment Emergent (Confirmed) Hypoglycaemic Episodes

An event was treatment emergent if the onset of the episode occurs after the first administration of trial product and no later than 7 days after last trial product administration. Confirmed hypoglycaemic episodes were defined as hypoglycaemic episodes that were either severe or minor. Minor hypoglycaemic episodes were defined as: 1. An episode with symptoms consistent with hypoglycaemia and confirmed by blood glucose value \<2.8 mmol/L (50 mg/dL) or plasma glucose \<3.1 mmol/L (56 mg/dL) and which was handled by the subject himself/herself. 2. Any asymptomatic PG value \<3.1 mmol/L (56 mg/dL) or blood glucose value \<2.8 mmol/L (50 mg/dL). Severe hypoglycemia was defined as an episode requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions. Reported values are hypoglycemia event rate per 100 patient-years of exposure (PYE).

Time frame: After 26 weeks of treatment

Population: Safety analysis set included all subjects receiving at least one dose of the trial product.

ArmMeasureValue (NUMBER)
IDegLiraNumber of Treatment Emergent (Confirmed) Hypoglycaemic Episodes351.7 event rate per 100 PYE
PlaceboNumber of Treatment Emergent (Confirmed) Hypoglycaemic Episodes135.2 event rate per 100 PYE
Secondary

Responders Achieving Pre-defined Target: HbA1c Below 7.0% (53 mmol/Mol)

Percentage of subjects having HbA1c below 7% at week 26.

Time frame: Week 26

Population: Full analysis set.

ArmMeasureValue (NUMBER)
IDegLiraResponders Achieving Pre-defined Target: HbA1c Below 7.0% (53 mmol/Mol)79.2 percentage of subjects
PlaceboResponders Achieving Pre-defined Target: HbA1c Below 7.0% (53 mmol/Mol)28.8 percentage of subjects
Secondary

Responders Achieving Pre-defined Target: HbA1c Below or Equal to 6.5% (48 mmol/Mol)

Percentage of subjects having HbA1c below 6.5% at week 26

Time frame: Week 26

Population: Full analysis set.

ArmMeasureValue (NUMBER)
IDegLiraResponders Achieving Pre-defined Target: HbA1c Below or Equal to 6.5% (48 mmol/Mol)64 percentage of subjects
PlaceboResponders Achieving Pre-defined Target: HbA1c Below or Equal to 6.5% (48 mmol/Mol)12.3 percentage of subjects

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026