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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
26
pubmed:dateCreated
2010-9-6
pubmed:abstractText
A novel, sensitive and reliable liquid chromatography-tandem mass spectrometric (LC-MS/MS) method was developed and validated for the determination of belinostat (PXD101) in human plasma. Oxamflatin was used as the internal standard. Liquid-liquid extraction of the plasma sample was performed using tert-butyl methyl ether as the organic solvent. Chromatographic separation was achieved on a BDS Hypersil C18 column (2.1 mm x1 00 mm, 5 microm) using gradient elution mode using 0.05% formic acid in water and 0.05% formic acid in acetonitrile as solvents A and B, respectively, 60/40. The run time was 6 min. The mass spectrometer was operated under a positive electrospray ionization condition and a multiple reaction monitoring mode. An excellent linear calibration was achieved in the range of 0.5-1000 ng/mL. An average recovery of belinostat for four quality controls was 72.6% and the recovery of the internal standard at 1000 ng/mL was 67.8%. The intra-day and inter-day precisions for belinostat were <or=8.0 and <or=10.3%, respectively, and their accuracy ranged from 100.2 to 106.7%. No significant matrix effect was identified. In analysis of patient samples, belinostat glucuronide was identified and baseline separated from belinostat. This well-validated assay has been applied for quantification of belinostat in plasma samples within 24h after the start of infusion for Asian hepatocellular carcinoma patients in a dose escalation study.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
1873-376X
pubmed:author
pubmed:copyrightInfo
Copyright (c) 2010 Elsevier B.V. All rights reserved.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
878
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2409-14
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
A sensitive and specific liquid chromatography-tandem mass spectrometric method for determination of belinostat in plasma from liver cancer patients.
pubmed:affiliation
Cancer Science Institute of Singapore, National University of Singapore, Singapore. csiwl@nus.edu.sg
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't