Comparing the Efficacy and Safety of Biphasic Insulin Aspart 30 and Biphasic Human Insulin 30 on Blood Sugar Control in Subjects With Type 2 Diabetes

Overview[ - collapse ][ - ]

Purpose This trial is conducted in Asia. The aim of this clinical trial is to investigate the blood sugar lowering effect and the safety profile of biphasic insulin aspart 30 compared to biphasic human insulin 30, both in combination with metformin in Chinese insulin-naive subjects with type 2 diabetes when failing on oral antidiabetic drug (OAD) therapy.
ConditionDiabetes
Diabetes Mellitus, Type 2
InterventionDrug: biphasic insulin aspart 30
Drug: biphasic human insulin 30
Drug: metformin
PhasePhase 4
SponsorNovo Nordisk A/S
Responsible PartyNovo Nordisk A/S
ClinicalTrials.gov IdentifierNCT00807092
First ReceivedDecember 10, 2008
Last UpdatedJune 15, 2012
Last verifiedApril 2012

Tracking Information[ + expand ][ + ]

First Received DateDecember 10, 2008
Last Updated DateJune 15, 2012
Start DateDecember 2008
Estimated Primary Completion DateOctober 2009
Current Primary Outcome MeasuresChange in IAUC (Incremental Area Under the Curve) for Postprandial Glucose (0-4 Hours) Over 3 Main Meals [Time Frame: Week 0, week 6] [Designated as safety issue: No]The blood glucose profiles were monitored by CGMS (Continuous Glucose Monitoring System) for 72 hours at baseline (week 0) and end of treatment (week 6). IAUC was calculated using the trapezoidal method. The arithmetic mean of IAUC (3 meal-specific incremental areas) of day 1 and day 2 was used as the value of IAUC for each CGMS period
Current Secondary Outcome Measures
  • Change in Mean IAUC for Postprandial Glucose (0-4 Hours) After Each Meal (Breakfast, Lunch, Dinner) Assessed by CGMS [Time Frame: Week 0, Week 6] [Designated as safety issue: No]The blood glucose profiles were monitored by CGMS for 72 hours at baseline (week 0) and end of treatment (week 6). IAUC (0-4 hours) after each meal at 6 weeks and change in IAUC (0-4 hours) from baseline (week 0) after each meal were to be assessed. The arithmetic mean of day 1 and day 2 for each meal-specific incremental area (breakfast, lunch, dinner) was calculated.
  • Mean FBG (Fasting Blood Glucose) Assessed by CGMS [Time Frame: Week 6] [Designated as safety issue: No]The blood glucose profiles were monitored by CGMS for 72 hours at end of treatment (week 6). Mean FBG assessed by CGMS at 6 weeks. FBG was read on the CGMS glucose curves at 06:00 each morning over the 72 hours. The arithmetic mean of day 1 and day 2 was used as the value of mean FBG for each CGMS period.
  • Change in Mean FBG Assessed by CGMS [Time Frame: Week 0, week 6] [Designated as safety issue: No]The blood glucose profiles were monitored by CGMS for 72 hours at baseline (week 0) and at end of treatment (week 6). Change in mean FBG from baseline (week 0) was assessed. FBG was read on the CGMS glucose curves at 06:00 each morning over the 72 hours. The arithmetic mean of day 1 and day 2 was used as the value of mean FBG for each CGMS period.
  • Change in FPG (Fasting Plasma Glucose) [Time Frame: Week 0, Week 6] [Designated as safety issue: No]FPG was analysed by local laboratories at baseline (week 0) and end of treatment (week 6). Change in FPG at end of treatment (week 6) from baseline (week 0) was to be assessed.
  • Change in 8-point SMBG (Self-monitored Blood Glucose) Profiles [Time Frame: Week 0, Week 6] [Designated as safety issue: No]Subjects were asked to perform 8-point SMBG profiles using the provided blood glucose meter on one day within 72 hours CGMS monitoring period at week 0 and week 6. Change in blood glucose level at end of treatment (week 6) from baseline (week 0) at each time point was to be assessed respectively. Blood glucose levels were measured at the following 8 time points: Before each meal (breakfast, lunch and dinner), 120 minutes after the start of each meal, at bedtime and at 3 am in the morning.
  • Change in Prandial Blood Glucose Increment [Time Frame: Week 0, Week 6] [Designated as safety issue: No]Subjects were asked to perform 8-point SMBG profiles using the provided blood glucose meter on one day within 72 hours CGMS monitoring period at week 0 and week 6 respectively. Prandial increment was the difference between the blood glucose (BG) value measured 120 minutes after meal and the BG value measured before meal.
  • Change in MAGE (Mean Amplitude of Glycaemic Excursions) Assessed by CGMS [Time Frame: Week 0, Week 6] [Designated as safety issue: No]MAGE is a parameter to monitor the intraday blood glucose excursions. It was calculated using CGMS data and as the arithmetic mean of glycaemic excursion with the criterion that both segments (ascending and descending parts) of the glycaemic excursion exceed of the value of one standard deviation of respective 24-hour blood glucose value. The direction of calculation (peak-to-nadir or nadir-to-peak) was established by the direction of the first excursion. The arithmetic mean of the glycaemic excursion of day 1 and day 2 was the value of MAGE for each CGMS
  • Change in GA (Glycated Albumin) [Time Frame: Week -2, week 6] [Designated as safety issue: No]Glycated Albumin is used as a general glycaemic control parameter. Analysed by laboratory. GA was measured at baseline (week 0) and end of treatment (week 6). Change in GA at end of treatment (week 6) from baseline (week 0) was assessed.
  • Change in Glycosylated Haemoglobin (HbA1c) [Time Frame: Week -2, week 6] [Designated as safety issue: No]
  • Duration of Hypoglycaemic Events Based on CGMS [Time Frame: 72-hour monitoring period at Week 0 and Week 6] [Designated as safety issue: Yes]The CGMS device recorded blood glucose levels every 10 seconds then stored a smoothed average over 5 minutes. The range of blood glucose detection was 2.2-22 mmol/l. Hypoglycaemia was defined as blood glucose readings below 3.5 mmol/l or below 2.5 mmol/l, respectively. The duration of the hypoglycaemic episodes was quantified by accumulating the total time the CGMS profiles stays below the defined threshold (i.e. below 3.5 mmol/l or below 2.5 mmol/l, respectively).
  • Hypoglycaemia Based on Self-reported Episodes [Time Frame: Weeks 0-6] [Designated as safety issue: Yes]Total number of hypoglycaemic episodes occurring in the trial after baseline (week 0) until the end of treatment (week 6). Hypoglycaemic episodes are classified as major, minor or symptoms only: Major if the subject was unable to treat her/himself; minor if subject was able to treat her/himself and self monitored blood glucose (SMBG) was below 2.8 mmol/L; symptoms only if subject was able to treat her/himself and with no blood glucose measurement or SMBG higher than or equal to 2.8 mmol/L.

Descriptive Information[ + expand ][ + ]

Brief TitleComparing the Efficacy and Safety of Biphasic Insulin Aspart 30 and Biphasic Human Insulin 30 on Blood Sugar Control in Subjects With Type 2 Diabetes
Official TitleComparison of the Efficacy on Glycaemic Control and Safety Profile of Biphasic Insulin Aspart 30 and Biphasic Human Insulin 30 Both in Combination With Metformin in Insulin-naïve Subjects With Type 2 Diabetes Mellitus Inadequately Controlled on Oral Antidiabetic Drugs (OADs) Therapy
Brief Summary
This trial is conducted in Asia. The aim of this clinical trial is to investigate the blood
sugar lowering effect and the safety profile of biphasic insulin aspart 30 compared to
biphasic human insulin 30, both in combination with metformin in Chinese insulin-naive
subjects with type 2 diabetes when failing on oral antidiabetic drug (OAD) therapy.
Detailed DescriptionNot Provided
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Condition
  • Diabetes
  • Diabetes Mellitus, Type 2
InterventionDrug: biphasic insulin aspart 30
The initial doses for BIAsp 30 twice-daily regimen will be recommended to start at a total daily dose of 0.3 U/kg body weight and to be equally divided (1/2:1/2) between pre-breakfast and pre-dinner
Drug: biphasic human insulin 30
The initial doses for BHI 30 twice-daily regimen will be recommended to start at a total daily dose of 0.3 IU/kg body weight and to be divided in the ratio of 2/3:1/3 between pre-breakfast and pre-dinner
Drug: metformin
Metformin dose must remain the same as that used prior to the trial.
Study Arm (s)
  • Experimental: BIAsp 30
    BIAsp 30 (biphasic insulin aspart 30) administered subcutaneously (under the skin) twice daily (before breakfast and dinner) + metformin. Initial total daily dose of 0.3 U or IU/kg body weight followed by individual dose adjustment for BIAsp 30 was performed over the first 4 weeks (titration period) to achieve the pre-meal blood glucose target of 4.4-6.1 mmol/l. The achieved dose was maintained for the last 2 weeks of treatment unless hypoglycaemia occurred.
  • Experimental: BHI 30
    BHI 30 (biphasic human insulin 30) administered subcutaneously (under the skin) twice daily (30 minutes before breakfast and dinner) + metformin. Initial total daily dose of 0.3 U or IU/kg body weight followed by individual dose adjustment for BHI 30 was performed over the first 4 weeks (titration period) to achieve the pre-meal blood glucose target of 4.4-6.1 mmol/l. The achieved dose was maintained for the last 2 weeks of treatment unless hypoglycaemia occurred.

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment145
Estimated Completion DateOctober 2009
Estimated Primary Completion DateOctober 2009
Eligibility Criteria
Inclusion Criteria:

- Type 2 diabetes diagnosed for at least 6 months

- Insulin-naive (less than or equal to 1 week of daily use of insulin therapy)

- Treatment with metformin as monotherapy or in combination therapy with other OAD(s)
for at least 3 months prior to this trial

- Currently on metformin greater than or equal to 1000 mg/day for at least 2 weeks

- Currently at least one of other OAD(s) reaching at least one-half of the recommended
maximum dose for at least 2 weeks

- Glycosylated haemoglobin (HbA1c) between 7.5-11.0%

- Body Mass Index (BMI) between 18.5 - 35.0 kg/m^2

- Be able and willing to perform continuous glucose monitoring system (CGMS ) and
self-monitored blood glucose (SMBG)

Exclusion Criteria:

- Known or suspected allergy to trial product(s) or related products

- Any contraindication of metformin

- Receipt of investigational drug within the last 3 months prior to this trial

- Any history of chronic insulin therapy (more than 1 week of daily use)

- Systemically treated with thiazolidinediones (TZDs) for more than one month within 6
months prior to this trial

- Pregnancy, nursing mother, or unwillingness to use adequate contraception
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesChina

Administrative Information[ + expand ][ + ]

NCT Number NCT00807092
Other Study ID NumbersBIASP-3681
Has Data Monitoring CommitteeNo
Information Provided ByNovo Nordisk A/S
Study SponsorNovo Nordisk A/S
CollaboratorsNot Provided
Investigators Study Director: Cheng Xi, MPhil. Novo Nordisk A/S
Verification DateApril 2012

Locations[ + expand ][ + ]

China, Beijing
Beijing, Beijing, China, 100730