Application of Liquid Chromatography-Accelerator Mass Spectrometry (LC-AMS) to Evaluate the Metabolic Profiles of a Drug Candidate in Human Urine and Plasma

Title: Application of Liquid Chromatography-Accelerator Mass Spectrometry (LC-AMS) to Evaluate the Metabolic Profiles of a Drug Candidate in Human Urine and Plasma

Volume: 1 Issue: 3

Author(s): Chandra Prakash, Christopher L. Shaffer, Larry M. Tremaine, Rosa G. Liberman, Paul L. Skipper, Jimmy Flarakos and Steven R. Tannenbaum

Affiliation:

Keywords: AMS, metabolic profiles, microdose, humans, plasma, urine, radioactivity

Abstract: Metabolite profiling of 100- and 1,000-fold diluted urine and plasma samples from a conventional radiolabeled human ADME study is described using a highly sensitive LC-AMS technique. The concentration of radioactivity and the metabolic profiles in urine and plasma determined using this technique were similar to those employing standard off-line (i.e. LSC) or in-line (i.e. β-RAM or LC-ARC dynamic-flow) radioactivity monitoring techniques. The results indicate that at a simulated ca. 100 nCi clinical dose, plasma and urine concentrations of 14C, as well as their metabolic profiles, may be determined routinely by LC-AMS. This approach opens the possibility of using LC-AMS for both the highthroughput quantitation of biological samples and the generation of high-resolution chromatographic profiles of complex mixtures at a lower cost than current AMS analyses that require the conversion of sample carbon to graphite, a laborious and time consuming process.

Cite this article as:

Chandra Prakash , Christopher L. Shaffer , Larry M. Tremaine , Rosa G. Liberman , Paul L. Skipper , Jimmy Flarakos and Steven R. Tannenbaum , Application of Liquid Chromatography-Accelerator Mass Spectrometry (LC-AMS) to Evaluate the Metabolic Profiles of a Drug Candidate in Human Urine and Plasma, Drug Metabolism Letters 2007; 1 (3) . https://dx.doi.org/10.2174/187231207781369735