A review of bioanalytical quantitative methods for selected sphingosine 1‐phosphate receptor modulators

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EarlyView Article

  • Published: Nov 6, 2017
  • Author: Ranjeet Prasad Dash, Nuggehally R. Srinivas, Rana Rais
  • Journal: Biomedical Chromatography

Abstract

Sphingosine 1‐phosphate (S1P1) modulators provide an emerging therapeutic approach for various autoimmune disorders such as multiple sclerosis and psoriasis. Fingolimod is the first approved orally active, selective and potent drug of this class. Other drugs belonging to this class include siponimod, ponesimod, ceralifimod, amiselimod, CS‐0777 and GSK2018682. However, owing to the high protein binding, polarity and zwitter‐ionic nature of the phosphate metabolite of parent drugs, it becomes challenging to optimize the extraction method for this class of compounds. Although, there are individual published bioanalytical methods for the analysis of selected S1P1 modulators to support preclinical and clinical drug development, no extensive review compiling all the bioanalytical methods for the important drugs in the class is available. Thus, we attempted to prepare a comprehensive review on various bioanalytical methods for selected S1P1 modulators which will provide all the relevant bioanalytical information as required by bioanalytical researchers. This review focuses on the various liquid chromatography with tandem mass spectrometry methods that have been used to quantify S1P1 modulators in various biological matrices. Extraction methods included liquid–liquid extraction, solid‐phase extraction and one‐step protein precipitation for extracting the analytes. This review captures key information regarding sample processing options and chromatographic/detection conditions.

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