Crossover Study to Evaluate the Comparative Bioavailability of Two Fixed Dose Combination Tablet Formulations of Amlodipine and Losartan in Health Volunteers

The purpose of this study is to evaluate the comparative bioavailability of two fixed dose combination tablet formulations of amlodipine and losartan in healthy volunteers. Subjects will receive each of the following three treatments administered in a randomized three-way crossover design: a reference treatment consisting of a 5mg amlodipine tablet and 100mg losartan tablet; a fixed dose combination tablet consisting of 5mg amlodipine and 100mg losartan; and another fixed dose combination tablet consisting of 5mg amlodipine and 100mg losartan; all three treatments will be administered once orally and in a fasted state. Serial blood samples will be obtained at pre-defined timepoints for pharmacokinetic analysis of amlodipine, losartan and carboxylic acid (this is the primary active losartan metabolite). Safety assessments will include measurements of orthostatic vital signs, electrocardiograms (ECG), collection of adverse events (AE) and clinical laboratory tests.