MEASUREMENT OF THE CLASS-III ANTIDYSRHYTHMIC DRUG, UK-68,798, IN PLASMA BY RADIOIMMUNOASSAY

被引:26
|
作者
WALKER, DK
AHERNE, GW
ARROWSMITH, JE
CROSS, PE
KAYE, B
SMITH, DA
STOPHER, DA
WILD, W
机构
[1] GUILDHAY ANTISERA LTD,RIVERSIDE BUSINESS CTR,UNIT 6,GUILDFORD GU1 4UG,SURREY,ENGLAND
[2] PFIZER LTD,CENT RES,DEPT DISCOVERY CHEM,SANDWICH CT13 9NJ,KENT,ENGLAND
关键词
CLASS-III ANTIDYSRHYTHMIC DRUG,UK-68,798; RADIOIMMUNOASSAY; HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY;
D O I
10.1016/0731-7085(91)80137-X
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A sensitive radioimmunoassay (RIA) for the specific determination of 1-(4-methanesulphonamidophenoxy)-2-[N-(4-methanesulphonamido-phenethyl)-N-methylamino]ethane (UK-68,798), a novel class III antidysrhythmic agent, in human plasma is described. Specific antisera were raised in sheep using desmesyl-UK-68, 798-succinate-ovalbumin conjugate as the antigenic hapten carrier protein. The antisera produced exhibited high specificity for UK-68, 798 compared with known metabolites from animals, other antidysrhythmic agents and co-administered drugs. Good correlation was found in a comparison of the RIA method with a high-performance liquid chromatography (HPLC) method (r = 0.997) and a 10-fold lower limit of determination was observed for the RIA method compared with the HPLC method (0.05 and 0.5 ng ml-1, respectively). The RIA method was applied to the analysis of UK-68, 798 in plasma obtained from human volunteers receiving the compound.
引用
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页码:141 / 149
页数:9
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