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Efficacy and Safety of Insulin Degludec/Insulin Aspart in Insulin-naïve Subjects With Type 2 Diabetes Using Two Dosing Regimens

A Trial Comparing the Efficacy and Safety of Insulin Degludec/Insulin Aspart Once Daily in Insulin-naïve Subjects With Type 2 Diabetes Mellitus When Using Two Different Titration Algorithms (BOOST™: SIMPLE USE)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01365507
Acronym
BOOST™
Enrollment
276
Registered
2011-06-03
Start date
2011-06-30
Completion date
2012-04-30
Last updated
2017-03-17

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 and North America. The aim of this trial is to compare the efficacy and safety of insulin degludec/insulin aspart (IDegAsp) once daily in insulin-naïve subjects with type 2 diabetes mellitus when using two different titration algorithms (dose individually adjusted) as add-on to subject's ongoing treatment with metformin.

Interventions

DRUGinsulin degludec/insulin aspart

Insulin degludec/insulin aspart injected subcutaneously (under the skin) once daily. Dose individually adjusted.

Sponsors

Novo Nordisk A/S
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Type 2 diabetes (diagnosed clinically) for 24 weeks or longer prior to randomisation (visit 2) * Insulin naïve subjects (Allowed are: Previous short term insulin treatment no longer than or equal to 14 days in total; Treatment during hospitalisation or during gestational diabetes is allowed for periods longer than 14 days in total) * Current treatment: Metformin alone or metformin in any combination of 1 or 2 additional OADs (oral anti-diabetic drug) including an insulin secretagogue (sulfonylurea or glinide), dipeptidyl peptidase IV (DPP-IV) inhibitors, alpha-glucosidase inhibitors or thiazolidinediones (TZDs) - all with unchanged dosing for at least 12 weeks prior to randomisation (visit 2). Metformin dose, alone or in combination (including fixed combination), must be at least 1000 mg daily * HbA1c (glycosylated haemoglobin) 7.0-10.0% (both inclusive) * BMI (Body Mass Index) below or equal to 45 kg/m\^2 * Ability and willingness to adhere to the protocol including self measurement of plasma glucose

Exclusion criteria

* Treatment with GLP-1 (glucagon like peptide) receptor agonists within the last 12 weeks prior to randomisation (visit 2) * Recurrent severe hypoglycaemia (more than one severe hypoglycaemic event during the last 12 months) or hypoglycaemic unawareness as judged by the Investigator (trial physician) * Previous participation in this trial. Participation is defined as randomised. Re-screening is allowed once during the recruitment period * Known or suspected hypersensitivity to trial products or related products * The receipt of any investigational drug within 4 weeks prior to randomisation (visit 2) * Anticipated significant lifestyle changes during the study, e.g. shift work (including permanent night/evening shift workers) as well as highly variable eating habits

Design outcomes

Primary

MeasureTime frameDescription
Change in Glycosylated Haemoglobin (HbA1c)Week 0, week 26Change from baseline in HbA1c after 26 weeks of treatment.

Secondary

MeasureTime frameDescription
Change in Fasting Plasma Glucose (FPG)Week 0, week 26Change from baseline in FPG after 26 weeks of treatment.
Rate of Treatment Emergent Adverse Events (AEs)Week 0 to Week 26 + 7 days follow upCorresponds to rate of AEs per 100 patient years of exposure. Severity assessed by investigator. Mild: no or transient symptoms, no interference with subject's daily activities. Moderate: marked symptoms, moderate interference with subject's daily activities. Severe: considerable interference with subject's daily activities, unacceptable. Serious AE: AE that at any dose results in any of the following: death, a life-threatening experience, in-subject hospitalization/prolongation of existing hospitalisation, persistent/significant disability/incapacity/congenital anomaly/birth defect.
Rate of Confirmed Hypoglycaemic EpisodesWeek 0 to Week 26 + 7 days follow upRate of confirmed hypoglycaemic episodes per 100 patient years of exposure (PYE). Confirmed hypoglycaemic episodes consisted of severe hypoglycaemia as well as minor hypoglycaemic episodes. Severe hypoglycaemic episodes were defined as requiring assistance to administer carbohydrate, glucagon, or other resuscitative actions. Minor hypoglycaemic episodes were defined as able to treat her/himself and plasma glucose below 3.1 mmol/L.
Rate of Nocturnal Confirmed Hypoglycaemic EpisodesWeek 0 to Week 26 + 7 days follow upRate of nocturnal confirmed hypoglycaemic episodes per 100 patient years of exposure (PYE). Confirmed hypoglycaemic episodes consisted of severe hypoglycaemia as well as minor hypoglycaemic episodes. Severe hypoglycaemic episodes were defined as requiring assistance to administer carbohydrate, glucagon, or other resuscitative actions. Minor hypoglycaemic episodes were defined as able to treat her/himself and plasma glucose below 3.1 mmol/L. Nocturnal hypoglycaemic episodes were defined as occurring between 00:01 and 05:59 a.m.

Countries

Malaysia, Mexico, Puerto Rico, South Korea, Thailand, Turkey (Türkiye), United States

Participant flow

Recruitment details

This trial was conducted at 38 sites in 6 countries: Malaysia, Mexico, South Korea, Thailand, Turkey and the United States (U.S.).

Pre-assignment details

Subjects continued their metformin monotherapy or metformin in any combination with 1 or 2 additional oral antidiabetic drugs including an insulin secretagogue (sulfonylurea or glinide), dipeptidyl peptidase IV inhibitors, α-glucosidase inhibitors, thiazolidinediones, all with unchanged dosing for at least 12 weeks prior to randomisation.

Participants by arm

ArmCount
IDegAsp Simple
Insulin degludec/insulin aspart (IDegAsp) was given once daily (OD) subcutaneously (3-4 days intervals between doses) with pre-trial metformin according to simple titration algorithm: self-titration was performed twice weekly based on pre-breakfast self-measured plasma glucose (SMPG) value measured on the day of insulin titration.
136
IDegAsp Step Wise
Insulin degludec/insulin aspart (IDegAsp) was given once daily (OD) subcutaneously (at least 5 days intervals between doses) with pre-trial metformin according to step wise titration algorithm: self-titration was performed once weekly based on the lowest value of three pre-breakfast SMPG values measured on three consecutive days, the two days prior to and on the day of insulin titration.
140
Total276

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyUnclassified14
Overall StudyWithdrawal Criteria85

Baseline characteristics

CharacteristicTotalIDegAsp SimpleIDegAsp Step Wise
Age, Continuous56.4 years
STANDARD_DEVIATION 9.5
57.0 years
STANDARD_DEVIATION 9.4
55.8 years
STANDARD_DEVIATION 9.7
Fasting plasma glucose (FPG)8.9 mmol/L
STANDARD_DEVIATION 2.4
8.9 mmol/L
STANDARD_DEVIATION 2.4
9.0 mmol/L
STANDARD_DEVIATION 2.3
Glycosylated haemoglobin (HbA1c)8.3 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.8
8.3 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.8
8.2 percentage of glycosylated haemoglobin
STANDARD_DEVIATION 0.8
Sex: Female, Male
Female
143 Participants59 Participants84 Participants
Sex: Female, Male
Male
133 Participants77 Participants56 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
20 / 13426 / 140
serious
Total, serious adverse events
1 / 1346 / 140

Outcome results

Primary

Change in Glycosylated Haemoglobin (HbA1c)

Change from baseline in HbA1c after 26 weeks of treatment.

Time frame: Week 0, week 26

Population: The full analysis set (FAS) included all randomised subjects and missing data were imputed using last observation carried forward (LOCF).

ArmMeasureValue (MEAN)Dispersion
IDegAsp SimpleChange in Glycosylated Haemoglobin (HbA1c)-1.33 percentage of glycosylated haemoglobinStandard Deviation 1.03
IDegAsp Step WiseChange in Glycosylated Haemoglobin (HbA1c)-1.09 percentage of glycosylated haemoglobinStandard Deviation 0.82
Secondary

Change in Fasting Plasma Glucose (FPG)

Change from baseline in FPG after 26 weeks of treatment.

Time frame: Week 0, week 26

Population: The full analysis set (FAS) included all randomised subjects and missing data were imputed using last observation carried forward (LOCF). For 2 subjects baseline values were missing, hence not included in the analysis.

ArmMeasureValue (MEAN)Dispersion
IDegAsp SimpleChange in Fasting Plasma Glucose (FPG)-2.99 mmol/LStandard Deviation 3.03
IDegAsp Step WiseChange in Fasting Plasma Glucose (FPG)-2.73 mmol/LStandard Deviation 2.91
Secondary

Rate of Confirmed Hypoglycaemic Episodes

Rate of confirmed hypoglycaemic episodes per 100 patient years of exposure (PYE). Confirmed hypoglycaemic episodes consisted of severe hypoglycaemia as well as minor hypoglycaemic episodes. Severe hypoglycaemic episodes were defined as requiring assistance to administer carbohydrate, glucagon, or other resuscitative actions. Minor hypoglycaemic episodes were defined as able to treat her/himself and plasma glucose below 3.1 mmol/L.

Time frame: Week 0 to Week 26 + 7 days follow up

Population: The safety analysis set included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (NUMBER)
IDegAsp SimpleRate of Confirmed Hypoglycaemic Episodes326 Episodes/100 years of patient exposure
IDegAsp Step WiseRate of Confirmed Hypoglycaemic Episodes207 Episodes/100 years of patient exposure
Secondary

Rate of Nocturnal Confirmed Hypoglycaemic Episodes

Rate of nocturnal confirmed hypoglycaemic episodes per 100 patient years of exposure (PYE). Confirmed hypoglycaemic episodes consisted of severe hypoglycaemia as well as minor hypoglycaemic episodes. Severe hypoglycaemic episodes were defined as requiring assistance to administer carbohydrate, glucagon, or other resuscitative actions. Minor hypoglycaemic episodes were defined as able to treat her/himself and plasma glucose below 3.1 mmol/L. Nocturnal hypoglycaemic episodes were defined as occurring between 00:01 and 05:59 a.m.

Time frame: Week 0 to Week 26 + 7 days follow up

Population: The safety analysis set included all subjects who received at least one dose of the investigational product.

ArmMeasureValue (NUMBER)
IDegAsp SimpleRate of Nocturnal Confirmed Hypoglycaemic Episodes52 Episodes/100 years of patient exposure
IDegAsp Step WiseRate of Nocturnal Confirmed Hypoglycaemic Episodes41 Episodes/100 years of patient exposure
Secondary

Rate of Treatment Emergent Adverse Events (AEs)

Corresponds to rate of AEs per 100 patient years of exposure. Severity assessed by investigator. Mild: no or transient symptoms, no interference with subject's daily activities. Moderate: marked symptoms, moderate interference with subject's daily activities. Severe: considerable interference with subject's daily activities, unacceptable. Serious AE: AE that at any dose results in any of the following: death, a life-threatening experience, in-subject hospitalization/prolongation of existing hospitalisation, persistent/significant disability/incapacity/congenital anomaly/birth defect.

Time frame: Week 0 to Week 26 + 7 days follow up

Population: The safety analysis set included all subjects who received at least one dose of the investigational product.

ArmMeasureGroupValue (NUMBER)
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Adverse events (AEs)226 Events/100 years of patient exposure
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Serious AEs2 Events/100 years of patient exposure
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Severe AEs3 Events/100 years of patient exposure
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Moderate AEs68 Events/100 years of patient exposure
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Mild AEs155 Events/100 years of patient exposure
IDegAsp SimpleRate of Treatment Emergent Adverse Events (AEs)Fatal AEs0 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Mild AEs228 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Adverse events (AEs)342 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Moderate AEs112 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Serious AEs13 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Fatal AEs0 Events/100 years of patient exposure
IDegAsp Step WiseRate of Treatment Emergent Adverse Events (AEs)Severe AEs3 Events/100 years of patient exposure

Source: ClinicalTrials.gov · Data processed: Feb 13, 2026