Stendhal Americas SA

This is an open, randomized (randomization ratio: 1:1), multiple dose, three way, three period cross over study to assess the potential for drug drug interactions between gemigliptin (a DPP-IV inhibitor mainly metabolized by CYP3A4) and metformin in a sample of healthy Mexican volunteers, aimed to determine whether the observed lack of drug-drug interactions between gemigliptin and metformin in the Korean population is reproducible in an ethnically different population characterized by a significant difference in the frequency of CYP3A4 polymorphisms associated with decreased enzymatic activity, such as CYP3A4*1b, in comparison with Asian populations.

Fimasartan (FMS) is an AT1 receptor antagonist indicated for once a day administration, currently approved for the treatment of essential hypertension in Corea and Mexico. As the safety and efficacy of FMS was initially demonstrated in Korea only, it was necessary to address the potential for ethnic factors to have an effect on the drug´s efficacy and safety in the Mexican population. To address this need, a cohort of 272 Mexican subjects with grades 1-2 essential hypertension were sequentially treated on a treat to target basis (target: sitting Diastolic Blood Pressure (sDBP) <90 mmHg) with 60 mg FMS once a day (8 weeks), either 120 mg FMS or 60 mg FMS+12.5 mg HCTZ once a day (randomized 4 week treatment period) and 120 mg FMS once a day (during 12 weeks) for a total treatment period of 24 weeks.