%0 Journal Article
%T Validation and clinical application of a novel LC¨CMS method for quantification of dolutegravir in breast milk | Bioanalysis
%A Alieu Amara
%A Catherine Orrell
%A Catriona Waitt
%A Deirdre Egan
%A Elizabeth Challenger
%A Joshua Gini
%A L
%A Mohammed Lamorde
%A Saye Khoo
%A Sujan Dilly Penchala
%A on Myer
%J Bioanalysis
%D 2018
%R https://doi.org/10.4155/bio-2018-0085
%X Aim: A novel, sensitive and reproducible method for quantification of dolutegravir (DTG) in dried breast milk spots (DBMS) was developed and validated for use in clinical studies. Its application enabled measurement of DTG pharmacokinetics in breastfeeding mothers and their infants. Results/methodology: Sample extraction was by liquid¨Cliquid extraction using tert-butyl methy-ether, with DTG¨Cd5 as an internal standard. DTG was eluted on a reverse phase C18 Waters XBridge (3.5 ¦Ìm: 2.1 ¡Á 50 mm) column using a gradient mobile phase consisting of 0.1% formic acid in deionised water or methanol. The assay was validated over a calibration range of 10¨C4000 ng/ml. Conclusion: Stability, inter and intra-assay variability were acceptable according to FDA and EMA bioanalytical method guidelines. The assay is robust, accurate, precise and can be reliably applied for analysis of clinical samples in trials from low resource settings.
%U https://www.future-science.com/doi/10.4155/bio-2018-0085