Efficacy and Safety of Voglibose Compared With Acarbose in Patients With Type 2 Diabetes

Overview[ - collapse ][ - ]

Purpose The primary purpose of this study is to evaluate the efficacy of voglibose versus acarbose combined with Metformin in patients with type 2 diabetes mellitus (T2DM) by evaluating levels of glycosylated hemoglobin.
ConditionType 2 Diabetes Mellitus
InterventionDrug: Metformin
Drug: Voglibose
Drug: Acarbose
PhasePhase 4
SponsorTakeda
Responsible PartyTakeda
ClinicalTrials.gov IdentifierNCT02049814
First ReceivedJanuary 28, 2014
Last UpdatedJanuary 28, 2014
Last verifiedJanuary 2014

Tracking Information[ + expand ][ + ]

First Received DateJanuary 28, 2014
Last Updated DateJanuary 28, 2014
Start DateMarch 2014
Estimated Primary Completion DateNovember 2015
Current Primary Outcome MeasuresChange From Baseline in Glycosylated Hemoglobin (HbA1c) at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at week 12 or final visit and glycosylated hemoglobin collected at baseline.
Current Secondary Outcome Measures
  • Change From Baseline in HbA1c at Weeks 2 and 6. [Time Frame: Baseline and Weeks 2 and 6] [Designated as safety issue: No]The change in the value of glycosylated hemoglobin (the concentration of glucose bound to hemoglobin as a percent of the absolute maximum that can be bound) collected at Weeks 2 and 6 and glycosylated hemoglobin collected at Baseline.
  • Change From Baseline in Fasting Blood Glucose Over Time [Time Frame: Baseline and Weeks 2, 6 and 12] [Designated as safety issue: No]The change between the value of fasting blood glucose collected at Weeks 2, 6 and 12 and fasting blood glucose collected at Baseline.
  • Change from Baseline in Postprandial Blood Glucose Over Time [Time Frame: Baseline and Weeks 2, 6 and 12] [Designated as safety issue: No]The change from Baseline in postprandial blood glucose, collected at one and two hours after a meal.
  • Change From Baseline in Fasting Insulin at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change between the value of fasting insulin collected at Week 12 and fasting insulin collected at Baseline.
  • Change from Baseline in Postprandial Serum Insulin at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change from Baseline in postprandial serum insulin, collected at one and two hours after a meal.
  • Change From Baseline in Fasting Glucagon at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change between the value of fasting glucagon collected at Week 12 and fasting glucagon collected at Baseline.
  • Change from Baseline in Postprandial Serum Glucagon at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change from Baseline in postprandial serum glucagon collected at one and two hours after a meal.
  • Change From Baseline in Calculated Homeostatic Model Assessment Insulin Resistance (HOMA IR) at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change between the value of HOMA-IR collected at Week 12 and HOMA-IR collected at Baseline. HOMA IR measures insulin resistance based on fasting glucose and insulin measurements: HOMA IR = fasting plasma insulin (µIU/mL) * fasting plasma glucose (mmol/L) / 22.5. A higher number indicates a greater insulin resistance.
  • Change From Baseline in Insulin Homeostatic Model Assessment (HOMA) Beta Cell Function at Week 12 [Time Frame: Baseline and Week 12] [Designated as safety issue: No]The change between the value of HOMA-beta cell function collected at Week 12 and HOMA-beta cell function collected at Baseline. The homeostatic model assessment estimates steady state beta cell function as a percentage of a normal reference population (%B). HOMA %B = 20 * insulin (µIU/mL) / fasting plasma glucose (mmol/L) - 3.5.
  • Change From Baseline in Body Weight Over Time [Time Frame: Baseline and Weeks 2, 6 and 12] [Designated as safety issue: No]The change between body weight at Weeks 2, 6 and 12 and body weight at Baseline.

Descriptive Information[ + expand ][ + ]

Brief TitleEfficacy and Safety of Voglibose Compared With Acarbose in Patients With Type 2 Diabetes
Official TitleEfficacy and Safety of Voglibose Compared With Acarbose in Patients With Type 2 Diabetes Inadequately Controlled on Metformin Alone: a Randomized, Open-label, Non-inferiority Study
Brief Summary
The primary purpose of this study is to evaluate the efficacy of voglibose versus acarbose
combined with Metformin in patients with type 2 diabetes mellitus (T2DM) by evaluating
levels of glycosylated hemoglobin.
Detailed Description
The drug being tested in this study is called voglibose. Voglibose is being tested to treat
type 2 diabetes in people who have diabetes that is inadequately controlled on metformin
alone. This study will look at glycemic control in people who take voglibose.

The study will enroll approximately 380 patients. Participants will be randomly assigned (by
chance, like flipping a coin) to one of the two treatment groups:

- Metformin maximum tolerated dose and voglibose 0.2 mg for 2 weeks followed by 0.3 mg
for 10 weeks

- Metformin maximum tolerated dose and acarbose 50 mg for 2 weeks followed by 100 mg for
10 weeks.

All participants will be asked to take their current dose of metformin tablets and either
voglibose or acarbose tablets three times a day throughout the study.

This multi-centre trial will be conducted in China. The overall time to participate in this
study is up to 20 weeks and participants will make 8 visits to the clinic.
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
ConditionType 2 Diabetes Mellitus
InterventionDrug: Metformin
Metformin tablets
Other Names:
GlucophageDrug: Voglibose
Voglibose tablets
Other Names:
BasenDrug: Acarbose
Acarbose tablets
Other Names:
Glucobay, Precose, Prandase
Study Arm (s)
  • Experimental: Metformin + Voglibose
    Metformin tablets, at the maximum tolerated dose ≥1000 mg/day, orally, for 12 weeks, in addition to voglibose 0.2 mg, tablets, orally, three times daily, for Weeks 1 and 2, followed by voglibose 0.3 mg, tablets, orally, three times daily, Weeks 3 through 12.
  • Active Comparator: Metformin + Acarbose
    Metformin tablets, at the maximum tolerated dose ≥1000 mg/day, orally, for 12 weeks, in addition to acarbose 50 mg, tablets, orally, three times daily, Weeks 1 and 2, then acarbose 100 mg, tablets, orally, three times daily, Weeks 3 through 12.

Recruitment Information[ + expand ][ + ]

Recruitment StatusNot yet recruiting
Estimated Enrollment380
Estimated Completion DateNovember 2015
Estimated Primary Completion DateAugust 2015
Eligibility Criteria
Inclusion Criteria:

1. Has a historical diagnosis of type 2 diabetes mellitus (T2DM) for at least 6 months
prior to the screening visit (V1).

2. Is male or female and aged from 18 to 75 years, inclusively.

3. Has a body mass index (BMI) between 20 and 45 kg/m^2, inclusively.

4. Is experiencing inadequate glycemic control with a glycosylated hemoglobin (HbA1c)
concentration between 7.0% and 10.0%, inclusively.

5. Has been treated with Metformin for at least 3 months and at a stable dose (≥1000
mg/day) for at least 8 weeks prior to Screening, unless there is documentation that
the participant's current dose is his or her maximum tolerated dose (MTD) and MTD is
≤1000 mg/day.

6. Keeps constant body weight with fluctuation range no more than 10% over for at least
3 months before screening.

7. Hemoglobin levels of the participant are ≥12 g/dL (≥120 g/L) in male and≥ 10 g/dL
(≥100 g/L) in female at screening visit.

8. Male serum creatinine <1.5 mg/dL and female serum creatinine <1.4 mg/dL, or estimated
glomerular filtration rate (eGFR) >60 ml/min/1.73m^2 based on calculation using the
Modification of Diet in Renal Disease (MDRD) approximation at Screening.

9. In the opinion of the investigator, the participant is capable of understanding and
complying with protocol requirements.

10. The participant or, when applicable, the participant's legally acceptable
representative signs and dates a written informed consent form and any required
privacy authorization prior to the initiation of any study procedures.

Exclusion Criteria:

1. Type 1 diabetes mellitus.

2. Has received insulin, voglibose, acarbose or other oral hypoglycemic drugs (except
Metformin) for accumulative total of more than 7 days within the latest 3 months
prior to Visit 1.

3. Has a history of cardiovascular disease: acute myocardial infarction, class III or IV
heart failure, or cerebrovascular accident (stroke) within the latest 3 months prior
to Visit 1.

4. The participant's liver function is damaged and has a significant clinical sign or
symptom of hepatopathy, acute or chronic hepatitis, or the value of alanine
aminotransferase (ALT) or aspartate aminotransferase (AST) is 3 times more than the
upper limit of normal level at Visit 1.

5. Has an active proliferative retinopathy or macular degeneration that need to have an
urgent treatment in the opinion of investigators.

6. Has a frequent attack of hypoglycemia or loses consciousness due to hypoglycemia in
the opinion of investigators.

7. Has one or more times ketoacidosis or hyperosmotic status/coma.

8. Is receiving long-term (>14days) systemic glucocorticoid treatment (except the
medicine: local, intraocular, inhalation or via the nose) or has received such
treatment for 4 weeks at Visit 1.

9. Has a hematopathy (e.g. hemolytic anemia, drepanocytosis) that may interfere with the
HbA1c test.

10. Has other liabilities (e.g. drug abuse, alcoholism or mental disorder) that may
hinder the participant to follow and complete the study.

11. Has participated in another clinical study within the past 90 days or has received
any investigational compound within 30 days prior to randomization.

12. Is unsuitable for this study in the opinion of investigators.

13. Has a disease need to use other taboo or caution drugs that is not listed in this
study.

14. If female, is pregnant or lactating or intending to become pregnant before, during,
or within 30 days after participating in this study.
GenderBoth
Ages18 Years
Accepts Healthy VolunteersNo
ContactsContact: Takeda Study Registration Call Center
800-778-2860
medicalinformation@tpna.com
Location CountriesNot Provided

Administrative Information[ + expand ][ + ]

NCT Number NCT02049814
Other Study ID NumbersBASCN1201
Has Data Monitoring CommitteeNo
Information Provided ByTakeda
Study SponsorTakeda
CollaboratorsNot Provided
Investigators Study Director: Medical Director, Clinical Science Takeda
Verification DateJanuary 2014