The current study is part of a large multi-investigator grant to look at the pharmacogenetics of a number of membrane transporters. We will study individuals with particular genotypes of the human organic cation transporter, (hOCT2), to test the hypothesis that genetic variation in hOCT2 is associated with variation in the renal clearance of the antidiabetic agent, metformin.

NCT00187720

Conditions

1. Other Conditions That May Be A Focus of Clinical Attention

Interventions

1. Drug: Metformin

In recent studies, we identified four variants (M165I, A270S, R400C, and K432Q) with ethnic-specific allele frequencies ≥1% [6] that have altered function in studies in heterologous expression systems. --- M165I --- --- A270S ---

In addition, we identified a common haplotype of hOCT2 and one haplotype that contain the non-synonymous cSNP, A270S. --- A270S ---

The aim of the study is to evaluate the pharmacokinetics of metformin in healthy Caucasians volunteers with and without the polymorphism A270S in OCT2,thus the study hypothesis is that renal clearance of metformin is affected in Caucasian with the known single nucleotide polymorphisms A270S in OCT2.

NCT01237522

Conditions

1. Metformin
2. Organic Cation Transporter 2
3. Polymorphism,Single Nucleotide

Interventions

1. Drug: Metformin

A Pharmacokinetic Evaluation of Metformin in Relation to the Polymorphism A270S in Healthy Caucasian Volunteers.. --- A270S ---

A Pharmacokinetic Evaluation of Metformin in Relation to the Polymorphism A270S in Healthy Caucasian Volunteers The aim of the study is to evaluate the pharmacokinetics of metformin in healthy Caucasians volunteers with and without the polymorphism A270S in OCT2,thus the study hypothesis is that renal clearance of metformin is affected in Caucasian with the known single nucleotide polymorphisms A270S in OCT2. --- A270S ---

A Pharmacokinetic Evaluation of Metformin in Relation to the Polymorphism A270S in Healthy Caucasian Volunteers The aim of the study is to evaluate the pharmacokinetics of metformin in healthy Caucasians volunteers with and without the polymorphism A270S in OCT2,thus the study hypothesis is that renal clearance of metformin is affected in Caucasian with the known single nucleotide polymorphisms A270S in OCT2. --- A270S --- --- A270S ---

A Pharmacokinetic Evaluation of Metformin in Relation to the Polymorphism A270S in Healthy Caucasian Volunteers The aim of the study is to evaluate the pharmacokinetics of metformin in healthy Caucasians volunteers with and without the polymorphism A270S in OCT2,thus the study hypothesis is that renal clearance of metformin is affected in Caucasian with the known single nucleotide polymorphisms A270S in OCT2. --- A270S --- --- A270S --- --- A270S ---