PHARMACEUTICAL COMPOSITIONS OF N-METHYL-2-[3-((E)-2-PYRIDIN-2-YL-VINYL)-1H-INDAZOL-6-YLSULFANYL]-BENZAMIDE
申请人:PFIZER INC.
公开号:US20140248347A1
公开(公告)日:2014-09-04
The present invention relates to pharmaceutical compositions containing axitinib, which is known as N-methyl-2-[3-((E)-2-pyridin-2-yl-vinyl)-1H-indazol-6-ylsulfanyl]-benzamide or 6-[2-(methylcarbamoyl)phenylsulfanyl]-3-E-[2-(pyridin-2-yl)ethenyl]indazole, or crystalline forms thereof, that protect axitinib from degradation, including photodegradation, as well as the therapeutic use of such compositions. The present invention also relates to novel photodegradants of axitinib.
[EN] PHARMACEUTICAL COMPOSITIONS OF N-METHYL-2-[3-((E)-2-PYRIDIN-2-YL-VINYL)-1H-INDAZOL-6-YLSULFANYL]-BENZAMIDE<br/>[FR] COMPOSITIONS PHARMACEUTIQUES DE N-MÉTHYL-2-[3-((E)-2-PYRIDIN-2-YL-VINYL)-1H-INDAZOL-6-YLSULFANYL-BENZAMIDE
申请人:PFIZER
公开号:WO2013046133A1
公开(公告)日:2013-04-04
The present invention relates to pharmaceutical compositions containing axitinib, which is known as N-methyl-2-[3-((E)-2-pyridin-2-yl-vinyl)-1H-indazol-6-ylsulfanyl]- benzamide or 6-[2-(methylcarbamoyl)phenylsulfanyl]-3-E-[2-(pyridin-2- yl)ethenyl]indazole, or crystalline forms thereof, that protect axitinib from degradation, including photodegradation, as well as the therapeutic use of such compositions. The present invention also relates to novel photodegradants of axitinib.
Pharmacokinetics, Metabolism, and Excretion of [<sup>14</sup>C]Axitinib, a Vascular Endothelial Growth Factor Receptor Tyrosine Kinase Inhibitor, in Humans
作者:Bill J. Smith、Yazdi Pithavala、Hai-Zhi Bu、Ping Kang、Brian Hee、Alan J. Deese、William F. Pool、Karen J. Klamerus、Ellen Y. Wu、Deepak K. Dalvie
DOI:10.1124/dmd.113.056531
日期:2014.5
(mono-oxidation/sulfone), M12a (epoxide), and an unidentified metabolite, comprising 12%, 5.7%, 5.1%, and 5.0% of the dose, respectively. The proposed mechanism to form M5 involved a carbon-carbon bondcleavage via M12a, followed by rearrangement to a ketone intermediate and subsequent Baeyer-Villiger rearrangement, possibly through a peroxide intermediate. In summary, the study characterized axitinib
在禁食的健康人类受试者(N = 8)中研究了单次口服剂量的5 mg(100μCi)[(14)C]阿西替尼的处置。阿昔替尼被快速吸收,血浆中值Tmax为2.2小时,几何平均Cmax和半衰期分别为29.2 ng / ml和10.6小时。血浆总放射性时间曲线与阿西替尼相似,但AUC较大,表明存在代谢物。在人体血浆中(0-12小时)的主要代谢物被确定为阿昔替尼N-葡萄糖醛酸(M7)和阿昔替尼亚砜(M12),在药理上是无活性的,阿西替尼分别占放射活性的50.4%,16.2%和22.5%,分别。在排泄物中,大多数受试者在用药48小时后恢复了大部分放射性。尿液,粪便中位数放射性排泄,总回收率分别为22.7%,37.0%,和59.7%。粪便的恢复在各个受试者之间是可变的(范围为2.5%-60.2%)。尿液中鉴定出的代谢物为M5(羧酸),M12(亚砜),M7(N-葡糖醛酸),M9(亚砜/ N-氧化物)和M8a(甲基羟基葡糖醛酸),分别占5