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A Phase III Randomized, Double-blind, Parallel-group Study to Evaluate the Efficacy and Safety of Acarmet (Metformin HCl 500 mg Plus Acarbose 50 mg Tablets) Versus Acarbose Alone in Subjects With Type 2 Diabetes Mellitus

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2010 by Lotus Pharmaceutical.
Recruitment status was:  Recruiting
Information provided by:
Lotus Pharmaceutical Identifier:
First received: November 19, 2010
Last updated: NA
Last verified: November 2010
History: No changes posted
Type 2 diabetes mellitus is a chronic metabolic disorder which is caused by both insulin secretion deficiency and insulin action defect. In this type of subjects, fasting hyperglycemia is the result of the elevated rate of basal hepatic glucose production, and it is coexisting with hyperinsulinemia.After a meal, the impaired control of hepatic glucose production by insulin and decreased insulin-mediated glucose uptake by muscle contributed nearly equally to postprandial hyperglycemia(Scheen, 1997). Type 2 diabetic subjects experience significant morbidity and mortality from microvascular (retinopathy, nephropathy, and neuropathy) and macrovascular (cardiovascular disease, stroke, and peripheral vascular disease) complications. The appropriate treatment and good glycemic control of diabetes is therefore important and necessary (Vaag, 2006). Evidences suggest that combination therapy using oral antidiabetic agents with different mechanisms of action may be more effective in achieving and maintaining target blood glucose level (Turner et al., 2005).There are five classes of oral antihyperglycemic agents (sulfonylureas, biguanides, α- ucosidase inhibitors, thiazolidinediones and meglitinides) currently available to improve glycemic control in subjects with type 2 diabetes, each of which works through a different mechanism of action. Metformin, a biguanide which has insulin-sensitizing properties, can be used alone or in combination with other classes of agents. Metformin is the currently the first-choice treatment in subjects with diagnosed type 2 diabetic subjects and obesity, characterized by insulin-resistance. Metformin also provides reduction of body weight and ameliorates lipid abnormalities and is thought to be related to a reduction in hepatic gluconeogenesis (Hundal & Inzucchi, 2003).Acarbose, the α-glucosidase inhibitor, is approved for the treatment of type 2 diabetes, and first approved for prediabetes treatment (Chiasson et al., 1994; Breuer, 2003; Chiasson et al., 2002). The drug was launched worldwide as a type 2 diabetes monotherapy and combination therapy in 1990 which has proven efficacious as first-line therapy (Coniff et al., 1995) and in combination with sulfonylureas or insulin (Kelley et al., 1998). Acarbose and metformin are both associated with beneficial effects on hyperglycemia, hyperinsulinemia, body weight, and, in some studies,triglyceride levels (Krentz et al., 1994). Because these factors are part of a cluster of risk factors for cardiovascular disease, combining the two drugs may be useful. In long-term clinical studies, acarbose has shown a favorable safety profile (Hasche et al., 1999).In combination with metformin, acarbose has been shown to improve long-term glycemic control (Rosenstock et al., 1998; Halimi et al., 2000). This study was conducted as a further vestigation into the efficacy and safety of concurrent use of acarbose and metformin in type 2 diabetes mellitus subjects.Lotus Pharmaceutical Co., Ltd. intends to initiate Phase III program to investigate assess the efficacy and safety of metformin in combination with acarbose for type 2 diabetes mellitus subjects considered inadequately blood glucose control. Since combination tablet of acarbose and metformin has not yet been approved by the Taiwan DOH, this study is conducted to evaluate the efficacy and safety of combination tablet of acarbose and metformin in the treatment of type 2 diabetes mellitus subjects in Taiwan. Acarbose is chosen as an active-comparator.

Condition Intervention Phase
The Objectives of the Study is to Evaluate the Efficacy and Safety of Acarmet (Metformin HCl 500 mg Plus Acarbose 50 mg Tablets) Thrice Daily Versus Acarbose 50 mg Thrice Daily Over 16 Weeks in Subjects With Type 2 Diabetes Mellitus. Drug: Acarbose Drug: Metformin/Acarbose Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Treatment

Resource links provided by NLM:

Further study details as provided by Lotus Pharmaceutical:

Primary Outcome Measures:
  • The changes from baseline in HbA1c to the end of treatment period [ Time Frame: -4 weeks, 0 week, 8 weeks, 12 weeks, 16 weeks ]

Secondary Outcome Measures:
  • the change from baseline to the end of treatment in FBG, PBG, lipid profiles, and body weight. The safety evaluation will include: 1) Adverse events; 2) Laboratory data; 3) Physical examination; 4) Vital signs; 5) 12- lead ECG [ Time Frame: -4 weeks, 0 week, 4 weeks, 8 weeks, 12 weeks, 16 weeks ]

Estimated Enrollment: 220
Study Start Date: November 2010
Estimated Study Completion Date: December 2011
Estimated Primary Completion Date: June 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Acarbose Drug: Acarbose
Acarbose 50 mg, per orem, thrice daily
Experimental: Metformin/Acarbose Drug: Metformin/Acarbose
Metformin HCl 500 mg plus Acarbose 50 mg Tablets, per orem, thrice daily


Ages Eligible for Study:   20 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subjects may be included in the study only if they meet all of the following criteria:

    1. Male or female subjects aged ≥ 20 and ≤ 80 years old;
    2. Subject with type 2 diabetes mellitus;
    3. Subject with documented HbA1c ≥ 7 % and ≤ 10 % within 3 months prior study and at screening;
    4. Body mass index < 35 kg/m2;
    5. Subject is willing and able to comply with study procedures and sign informed consent.

Exclusion Criteria:

  • Subjects will be excluded from the study for any of the following reasons:

    1. Subject with type 1 diabetes or secondary diabetes;
    2. Subject with history or concurrent ketonuria or other acidosis;
    3. Subject with type 2 diabetes mellitus treated with high dose of sulfonylurea (gliclazide > 320 mg, glibenclamide > 20 mg, glimepiride > 6 mg, and glipizide > 20 mg) or with biguanides (metformin > 2000 mg), or of α-glucosidase inhibitors (acarbose > 300 mg), or with meglitinides (repaglinide > 6 mg and nateglinide > 360 mg), thiazolidinedione (rosiglitazone > 4 mg, pioglitazone > 30 mg) or with insulin;
    4. Subject with gastrointestinal disease that may interfere with absorption of the investigational products at discretion of investigator, including but are not limited to malabsorption syndromes and gastric ulcer;
    5. Subject with kidney function impairment defined as serum creatinine > 1.5 mg/dL for male, serum creatinine > 1.4 mg/dL for female, or liver function impairment defined as ALT > 3 X ULN, or AST > 3 X ULN;
    6. Subject with history of drug or alcohol abuse within the past 1 year;
    7. Subject who have been diagnosed with acute myocardial infarction or cardiac failure within 6 months preceding screening;
    8. Subject with hypersensitivity to acarbose and/or metformin products;
    9. Subject with active cancer, defined as ongoing, progressing cancer, or < 5 years of stable disease;
    10. Hemoglobin values < 10 gm/dl for females or <11 gm/dl for males;
    11. Female subject of childbearing potential who:

      • is lactating; or · has positive urine pregnancy test at Visit 1; or
      • refuse to adopt reliable method of contraception during the study;
    12. Subject is contraindicated to acarbose and/or metformin treatment;
    13. Subject has received any investigational agent within 28 days prior to the first dose of investigational product;
    14. Subject who have a history or evidence of a medical condition that would expose them to an undue risk of a significant adverse event during the course of the trial, including but not limited to hepatic, renal, respiratory, cardiovascular, endocrine,immune, neurological, or hematological disease as determined by the clinical judgment of the investigator.
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Please refer to this study by its identifier: NCT01245166

Taichung Veterans General Hospital Recruiting
Taichung, Taiwan, 40705
Contact: Elaine Liu, Bachelor    886-2-2778-5188 ext 335   
Sponsors and Collaborators
Lotus Pharmaceutical
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Dr. Wayne-Huey-Herng Sheu, Taichung Veterans General Hospital Identifier: NCT01245166     History of Changes
Other Study ID Numbers: MCCD09013B
Study First Received: November 19, 2010
Last Updated: November 19, 2010

Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Hypoglycemic Agents
Physiological Effects of Drugs
Glycoside Hydrolase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action processed this record on August 22, 2017