Bioequivalence Study of Two Strengths of Two Different Metformin Tablets Administered to Healthy Male and Female Subjects

Bioequivalence of Two Strengths (1000 mg and 500 mg) of Two Different Metformin Tablets Administered to Healthy Male and Female Subjects in an Open, Randomised, Single-dose, Two-period Crossover, Phase I Trial

Investigation of bioequivalence of BMS Glucophage® tablets and Merck Glucophage® tablets in the strengths of 1000 mg (part I) and 500 mg (part II)

Inclusion Criteria:

• Healthy males and females according to the following criteria: a complete medical history, including the physical examination, vital signs (Blood Pressure (BP), Pulse Rate (PR)), 12-lead electrocardiogram (ECG) and clinical laboratory tests
• Age ≥ 18 and Age ≤ 55 years
• BMI ≥ 18.5 and ≤ 29.9 kg/m2 (Body Mass Index)
• Signed and dated written informed consent prior to admission to the study in accordance with Good clinical practice (GCP) and the local legislation

Exclusion Criteria:

• Any finding of the medical examination deviating from normal and of clinical relevance. Repeated measurement of a systolic blood pressure greater than 140 mm Hg or diastolic blood pressure greater than 90 mm Hg
• Any evidence of a clinically relevant concomitant disease
• Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders
• Surgery of the gastrointestinal tract (except appendectomy)
• Diseases of the central nervous system (such as epilepsy) or psychiatric disorders or neurological disorders
• History of relevant orthostatic hypotension, fainting spells or blackouts
• Chronic or relevant acute infections
• History of relevant allergy/hypersensitivity (including allergy to drug or its excipients)
• Intake of drugs within one month or less than 10 half-lives of the respective drug prior to first study drug administration except if a relevant interaction can be ruled out
• Participation in another trial with an investigational drug within two months prior to first study drug administration
• Smoker (> 10 cigarettes or > 3 cigars or > 3 pipes/day)
• Inability to refrain from smoking on trial days
• Alcohol abuse (average consumption of more than 20 g/day in females and 30 g/day in males)
• Drug abuse
• Blood donation (more than 100 mL within four weeks prior to the start of study)
• Any laboratory value outside the reference range that is of clinical relevance
• Inability to comply with dietary regimen of trial site
• A marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of a QTc interval >450 ms)
• A history of additional risk factors for Torsade de pointes (TdP) (e.g., heart failure, hypokalemia, family history of Long QT Syndrome)

For female subjects:

• Positive pregnancy test, pregnancy or planning to become pregnant during the study or within 1 month after study completion
• No adequate contraception during the study and until 1 month after study completion, i.e. not any of the following: implants, injectables, combined oral contraceptives, IUD (intrauterine device), sexual abstinence for at least 1 month prior to enrolment, vasectomised partner (vasectomy performed at least 1 year prior to enrolment), or surgical sterilisation (including hysterectomy). Females, who do not have a vasectomised partner, are not sexually abstinent or surgically sterile will be asked to use an additional barrier method (e.g. condom, diaphragm with spermicide)
• Lactation