AN OPEN LABEL, BALANCED, RANDOMIZED, TWO-TREATMENT, TWO-PERIOD, TWO-SEQUENCE, CROSSOVER, SINGLE ORAL DOSE, BIOEQUIVALENCE STUDY OF METFORMIN 500 MG TABLETS MANUFACTURED BY SAVIPHARM J.S.C, VIETNAM AND GLUCOPHAGE® 500 MG TABLETS MANUFACTURED BY MERCK SANTE S.A.S.2, RUE DU PRESSOIR VERT-45400 SEMOY-FRANCE AND BE REGISTERED IN VIETNAM IN HEALTHY, ADULT, HUMAN MALE SUBJECTS UNDER FASTING CONDITION
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 入组人数
- 32
- 主要终点
- Mean Maximal Measured Plasma Concentration (Cmax) After a Single Dose
研究概览
简要总结
A randomized, balanced, open label, crossover, two period, two treatment, two sequence, single dose, oral bioequivalence study under fasting condition. It is a pivotal study.
To demonstrate the bioequivalence of Metformin 500 mg tablets manufactured by Savipharm J.S.C, Vietnam and Glucophage® 500 mg tablets of MERCK SANTE in healthy adult human male subjects under fasting condition and to monitor the safety of the study subjects.
详细描述
Sample Size Estimation Assuming the formulation ratio (T/R) 95-105% and with the maximum observable intra subject variability for Metformin is 22% (based on literature), a sample size of 29 subjects would be sufficient to prove bioequivalence between the two formulations with power of at least 90%. Hence, total 32 subjects will be enrolled in the study considering withdrawal and dropouts.
Hence, 32 healthy adult human male subjects will be enrolled. Adverse Events The investigator or site staff is responsible for detecting, documenting and reporting events that meet the definition of an AE or SAE.
AEs will be collected from the start of Study Treatment and until the follow-up contact. Medical occurrences that begin prior to the start of study treatment but after obtaining informed consent may be recorded on the Medical History/Current Medical Conditions CRF.
SAEs will be collected over the same time period as stated above for AEs. However, any SAEs assessed as related to study participation (e.g. study treatment, protocol-mandated procedures, invasive tests, or change in existing therapy) or related to a GSK concomitant medication will be recorded from the time a subject consents to participate in the study up to and including any follow-up contact. All SAEs will be recorded and reported to the sponsor within 24 hours.
Investigators are not obligated to actively seek AEs or SAEs in former study participants. However, if the investigator learns of any SAE, including a death, at any time after a subject has been discharged from the study, and he considers the event reasonably related to the study treatment or study participation, the investigator would promptly notify the sponsor.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 45 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
研究组 & 干预措施
Metformin 500mg
Cross over, two treatment, two period, two sequence, cross over, single dose
干预措施: Metformin 500mg (Drug)
Metformin 500mg
Cross over, two treatment, two period, two sequence, cross over, single dose
干预措施: Glucophage 500mg (Drug)
Glucophage 500mg
Cross over, two treatment, two period, two sequence, sigle dose
干预措施: Metformin 500mg (Drug)
Glucophage 500mg
Cross over, two treatment, two period, two sequence, sigle dose
干预措施: Glucophage 500mg (Drug)
结局指标
主要结局
Mean Maximal Measured Plasma Concentration (Cmax) After a Single Dose
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for pharmacokinetic (PK) analysis were drawn at indicated time points of each treatment period. Cmax was defined as maximal measured plasma concentration over the time span specified.
Area Under the Plasma Concentration-time Curve From Time Zero to the Last Measurable Concentration (AUC0-t) and Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC0-infinity)
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for PK analysis were drawn at indicated time points of each treatment period. AUC0-t was calculated by the linear trapezoidal rule from measured data points from time of administration until the time of last quantifiable concentration. AUC0- infinity was estimated by linear trapezoidal rule and was sum of the AUC0-t and extrapolated to infinity by dividing the estimated last measurable plasma concentration by elimination rate constant. The AUC0- infinity was the sum of the estimated and extrapolated parts.
Time of the Maximum Plasma Concentration (T-max) Over Period
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for PK analysis were drawn at indicated time points of each treatment period. If the maximum value occurs at more than one point T-max was defined as the first time point with this value.
Terminal Half-life (T-half) Over Period
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for PK analysis were drawn at indicated time points of each treatment period. The elimination or terminal half-life was calculated by dividing 0.693 (natural logarithm of 2) with elimination rate constant obtained as semi logarithmic plot of the plasma concentration versus time.
Percentage of Area Under Curve Extrapolated to Arrive at AUC0-infinity (AUC%_Extrapolated)
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for PK analysis were drawn at indicated time points of each treatment period. AUC%_Extrapolated was obtained by subtracting AUC0-t from AUC0-infinity divided by AUC0-infinity and multiplied by 100.
Apparent First-order Elimination or Terminal Rate Constant
时间窗: Pre- dose (0.0 hour), post-dose at 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, 16.0, 24.0 and 36.0 hour in each period.
Plasma samples for PK analysis were drawn at indicated time points of each treatment period. The apparent first-order elimination or terminal rate constant was calculated from a semi logarithmic plot of the plasma concentration versus time. The parameter was calculated by linear least-square regression analysis using the last three (or more) non-zero plasma concentrations.
次要结局
- Number of Participants With Any Adverse Event (AE) or Serious Adverse Event (SAE)(Up to 38 days)
- Number of Participants With Abnormal Vital Sign Results(Up to 38 days)
- Number of Participants With Abnormal Periodic Physical Examination Results(Up to 38 days)
- Assessment of Subject Well-being Questionnaire(Up to 38 days)