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Pharmacokinetic bioequivalence and safety assessment of two metformin hydrochloride tablet formulations using a phase I, randomized, open, two-period, two cross-over, single-dose, fed study in healthy Chinese adult subjects.
OBJECTIVES: To assess the bioequivalence and safety of generic metformin hydrochloride (test preparation) and glucophage (reference preparation) in healthy Chinese subjects.
MATERIALS AND METHODS: A bioequivalence and safety assessment of two formulations of metformin (850 mg) using a randomized, open, two-period, two cross-over, single-dose, fed trial in 36 healthy Chinese adult subjects was performed at our center from March 22, 2018, to April 9, 2018. Bioequivalence was determined as two-sided 90% confidence intervals (CI) of the test-to-reference ratio of area under the curve (AUC) and peak concentration (Cmax ) for each constituent within 80.00 - 125.00%. SAS 9.4 software was employed for the statistical analysis.
RESULTS: One subject was excluded from the trial. The 90% CIs (95.36 - 101.43% for AUC0→t , 95.65 - 101.66% for AUC0→∞ ; 94.43 - 101.74% for Cmax ) of test/reference preparation for these pharmacokinetic parameters were within the range of 80.00 - 125.00%. No severe adverse events were observed during this trial. The two preparations were safe and well-tolerated.
CONCLUSION: It was concluded that generic metformin was bioequivalent and as safe as glucophage under fed conditions in healthy Chinese subjects.
MATERIALS AND METHODS: A bioequivalence and safety assessment of two formulations of metformin (850 mg) using a randomized, open, two-period, two cross-over, single-dose, fed trial in 36 healthy Chinese adult subjects was performed at our center from March 22, 2018, to April 9, 2018. Bioequivalence was determined as two-sided 90% confidence intervals (CI) of the test-to-reference ratio of area under the curve (AUC) and peak concentration (Cmax ) for each constituent within 80.00 - 125.00%. SAS 9.4 software was employed for the statistical analysis.
RESULTS: One subject was excluded from the trial. The 90% CIs (95.36 - 101.43% for AUC0→t , 95.65 - 101.66% for AUC0→∞ ; 94.43 - 101.74% for Cmax ) of test/reference preparation for these pharmacokinetic parameters were within the range of 80.00 - 125.00%. No severe adverse events were observed during this trial. The two preparations were safe and well-tolerated.
CONCLUSION: It was concluded that generic metformin was bioequivalent and as safe as glucophage under fed conditions in healthy Chinese subjects.
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