Comparison of the Blood Sugar Lowering Effect Between Repaglinide Plus Metformin and Repaglinide Alone in Type 2 Diabetics Not Previously Treated With Oral Sugar-lowering Drugs

Overview[ - collapse ][ - ]

Purpose This trial is conducted in Asia. The aim of this clinical trial is to investigate the blood sugar lowering effect of repaglinide plus metformin as initial treatment compared to repaglinide alone in Chinese subjects with type 2 diabetes having an HbA1c (glycosylated haemoglobin A1c) over 8.5 % and who never have taken oral sugar-lowering drugs before. The associated unfavourable events including low blood sugar episodes between the two treatments are also compared.
ConditionDiabetes
Diabetes Mellitus, Type 2
InterventionDrug: repaglinide
Drug: metformin
Drug: repaglinide
PhasePhase 4
SponsorNovo Nordisk A/S
Responsible PartyNovo Nordisk A/S
ClinicalTrials.gov IdentifierNCT00819741
First ReceivedJanuary 8, 2009
Last UpdatedJune 5, 2012
Last verifiedJune 2012

Tracking Information[ + expand ][ + ]

First Received DateJanuary 8, 2009
Last Updated DateJune 5, 2012
Start DateFebruary 2009
Estimated Primary Completion DateNovember 2009
Current Primary Outcome MeasuresChange in Glycosylated Haemoglobin A1c (HbA1c) [Time Frame: week -2 (screening), week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in HbA1c after 16 weeks of treatment.
Current Secondary Outcome Measures
  • Change in Fasting Plasma Glucose [Time Frame: week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in fasting plasma glucose after 16 weeks of treatment.
  • Change in 2-hour Postprandial Plasma Glucose [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in 2-hour postprandial plasma glucose following a standard test meal after 16 weeks of treatment
  • Change in 7-point Plasma Glucose Profile [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in 7-point (before breakfast, 2 hours after breakfast, before lunch, 2 hours after lunch, before dinner, 2 hours after dinner, bedtime) plasma glucose profile after 16 weeks of treatment.
  • Change in Fasting Serum Insulin [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in fasting serum insulin after 16 weeks of treatment.
  • Change in 2-hour Postprandial Serum Insulin [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in 2-hour postprandial serum insulin after 16 weeks of treatment.
  • Change in Fasting Serum C-peptide [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in fasting serum C-peptide after 16 weeks of treatment
  • Change in 2-hour Postprandial Serum C-peptide [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as an estimate of the mean change in 2-hour postprandial serum C-peptide after 16 weeks of treatment
  • Hypoglycaemic Episodes [Time Frame: Weeks 0-16] [Designated as safety issue: No]Number of hypoglycaemic episodes from Week 0 to Week 16, defined as major, minor or symptoms only. Major if unable to treat her/himself. Minor if able to treat her/himself and plasma glucose below 3.1 mmol/L. Symptoms only if able to treat her/himself and no plasma glucose measurement or plasma glucose higher than or equal to 3.1 mmol/L.
  • Change in Blood Pressure [Time Frame: Week 0, week 16] [Designated as safety issue: No]Calculated as the mean change in diastolic and systolic blood pressure after 16 weeks of treatment
  • Physical Examinations [Time Frame: Week -2, week 16] [Designated as safety issue: No]The number of subjects having a physical examination event that changed from 'Normal' or 'Abnormal, not clinically significant' to 'Abnormal, clinically significant'. Physical examination included cardiovascular system, respiratory system, musculoskeletal system, nervous system and abdomen.
  • ECG (ElectroCardioGram) [Time Frame: Week -2, week 16] [Designated as safety issue: No]The number of subjects having a electrocardiogram (ECG) that changed from 'Normal' or 'Abnormal, not clinically significant' to 'Abnormal, clinically significant'. 'Abnormal, Clinically significant' is an abnormality that suggests a disease and/or organ toxicity and is of a severity, which requires active management.
  • Biochemistry: Alanine Aminotransferase (ALAT) [Time Frame: Week -2, week 16] [Designated as safety issue: No]The number of subjects having a change in Alanine Aminotransferase (ALAT) from 'Normal' or 'Abnormal, not clinically significant' to 'Abnormal, clinically significant'. 'Abnormal, Clinically significant' is an abnormality that suggests a disease and/or organ toxicity and is of a severity, which requires active management.
  • Biochemistry: Alanine Aminotransferase (ASAT) [Time Frame: Week -2, week 16] [Designated as safety issue: No]The number of subjects having a change in Aspartate Aminotransferase (ASAT) from 'Normal' or 'Abnormal, not clinically significant' to 'Abnormal, clinically significant'. 'Abnormal, Clinically significant' is an abnormality that suggests a disease and/or organ toxicity and is of a severity, which requires active management.
  • Haematology: Haemoglobin [Time Frame: Week -2, week 16] [Designated as safety issue: No]Haemoglobin was measured. The number of subjects having a change in Haemoglobin measurement from 'Normal' or 'Abnormal, not clinically significant' to 'Abnormal, clinically significant' 'Abnormal, Clinically significant' is an abnormality that suggests a disease and/or organ toxicity and is of a severity, which requires active management.

Descriptive Information[ + expand ][ + ]

Brief TitleComparison of the Blood Sugar Lowering Effect Between Repaglinide Plus Metformin and Repaglinide Alone in Type 2 Diabetics Not Previously Treated With Oral Sugar-lowering Drugs
Official TitleA 16-week, Open-label, Multicentre, Randomised, Parallel Study to Evaluate Efficacy and Safety of Repaglinide and Metformin Combination Therapy Compared to Repaglinide Monotherapy in Chinese OAD Naive Type 2 Diabetic Patients
Brief Summary
This trial is conducted in Asia. The aim of this clinical trial is to investigate the blood
sugar lowering effect of repaglinide plus metformin as initial treatment compared to
repaglinide alone in Chinese subjects with type 2 diabetes having an HbA1c (glycosylated
haemoglobin A1c) over 8.5 % and who never have taken oral sugar-lowering drugs before. The
associated unfavourable events including low blood sugar episodes between the two treatments
are also compared.
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: repaglinide
The dose was started from repaglinide 1 mg plus metformin 500 mg once daily. During the dose titration period, the dose could be titrated up to repaglinide 4 mg and metformin 500mg three times daily, according to fasting glucose. the minimal dose was repaglinide 1 mg plus metformin 500 mg three times daily
Drug: metformin
The dose was started from repaglinide 1 mg plus metformin 500 mg once daily. During the dose titration period, the dose could be titrated up to repaglinide 4 mg and metformin 500 mg three times daily, according to fasting glucose. the minimal dose was repaglinide 1 mg plus metformin 500 mg three times daily
Drug: repaglinide
The dose was started from repaglinide 1 mg three times daily. During the dose titration period, the dose of repaglinide could be titrated up to 4 mg three times daily, according to fasting glucose.
Study Arm (s)
  • Experimental: Repaglinide + metformin
    Initial dose of repaglinide 1mg plus metformin 500mg once daily. During the dose titration period of 6 weeks, the dose could be titrated up to repaglinide 4 mg and metformin 500 mg three times daily, according to fasting glucose values. The minimal dose was repaglinide 1 mg plus metformin 500 mg three times daily.
  • Active Comparator: Repaglinide
    Initial dose of repaglinide 1 mg three times daily. During the dose titration period of 6 weeks, the dose of repaglinide could be titrated up to 4 mg three times daily, according to fasting glucose values. The minimal dose was repaglinide 1 mg three times daily.

Recruitment Information[ + expand ][ + ]

Recruitment StatusCompleted
Estimated Enrollment433
Estimated Completion DateNovember 2009
Estimated Primary Completion DateNovember 2009
Eligibility Criteria
Inclusion Criteria:

- Diagnosed with type 2 diabetes

- Never taken oral antidiabetic drugs before

- HbA1c greater than 8.5 %

- BMI (Body Mass Index) less than or equal to 35 kg/m^2

Exclusion Criteria:

- Known or suspected allergy to repaglinide, metformin, or any of the excipients in the
medications

- Taken an investigational drug in another clinical trial within 4 weeks prior to this
trial

- Impaired liver function, defined as ASAT (aspartate aminotransferase) or ALAT
(alanine aminotransferase) equal to or greater than 2 times upper normal limit

- Have a clinically significant, active disease of the gastrointestinal, pulmonary,
neurological, renal, genitourinary, and haematological systems

- Severe uncontrolled or untreated hypertension (sitting diastolic blood pressure (BP)
equal to or greater than 100 mmHg or systolic BP equal to or greater than 180 mmHg)

- Impaired renal function

- Acute or chronic acidosis or if there are plans to have a radiographic material
containing iodine

- Have a clinically significant, active cardiovascular disease, or decompensated heart
failure

- Treatment with systemic corticosteroids within the past two months prior to screening
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesChina

Administrative Information[ + expand ][ + ]

NCT Number NCT00819741
Other Study ID NumbersAGEE-3705
Has Data Monitoring CommitteeNo
Information Provided ByNovo Nordisk A/S
Study SponsorNovo Nordisk A/S
CollaboratorsNot Provided
Investigators Study Director: Xiaohui GAO, MS Novo Nordisk A/S
Verification DateJune 2012

Locations[ + expand ][ + ]

China, Shanghai
Shanghai, Shanghai, China, 200025