Aprepitant primarily undergoes CYP3A4-mediated metabolism, as well as minor metabolism mediated by CYP1A2 and CYP2C19. About seven metabolites of aprepitant have been identified in human plasma, which all retain weak pharmacological activity.
Aprepitant has known human metabolites that include (2R,3S)-2-((R)-1-(3,5-Bis(trifluoromethyl)phenyl)ethoxy)-3-(4-fluorophenyl)morpholine, 1-[3,5-bis(trifluoromethyl)phenyl]ethanone, 5-oxo-1,4-dihydro-1,2,4-triazole-3-carbaldehyde, and 5-{[(2S,3S)-3-(4-fluorophenyl)-2-hydroxymorpholin-4-yl]methyl}-2,4-dihydro-1,2,4-triazol-3-one.
In pre-registration clinical trials of aprepitant, serum aminotransferase elevations occurred in 6% of treated patients compared to 4.3% in controls receiving cancer chemotherapy. The aminotransferase elevations were transient, mild to moderate in severity, and not associated with symptoms or jaundice. There have been no convincing cases of clinically apparent liver injury attributable to aprepitant published in the literature and thus, significant liver injury from aprepitant or fosaprepitant must be exceeding rare if it occurs at all.
来源:LiverTox
毒理性
肝毒性
化疗初期周期后血清转氨酶升高。
Serum aminotransferase elevations following initial cycles of chemotherapy occurred in
Aprepitant is eliminated primarily by metabolism; aprepitant is not renally excreted. Aprepitant is excreted in the milk of rats. It is not known whether this drug is excreted in human milk.
The present invention provides a compound represented by the formula:
wherein Ar is an aryl group optionally having substituents, R is a C
1-6
alkyl group, R
1
is a hydrogen atom, a hydrocarbon group optionally having substituents, an acyl group or a heterocyclic group optionally having substituents, X is an oxygen atom or an imino group optionally having substituents, ring A is a piperidine ring optionally further having substituents, and ring B is a benzene ring having substituents, or a salt thereof, and an agent for the prophylaxis or treatment of lower urinary tract abnormality and the like, which contains the compound.
METHODS AND SYSTEMS FOR DESIGNING AND/OR CHARACTERIZING SOLUBLE LIPIDATED LIGAND AGENTS
申请人:TUFTS MEDICAL CENTER
公开号:US20160052982A1
公开(公告)日:2016-02-25
The present application provides methods for preparing soluble lipidated ligand agents comprising a ligand entity and a lipid entity, and in some embodiments, provides relevant parameters of each of these components, thereby enabling appropriate selection of components to assemble active agents for any given target of interest.
The present invention relates to a process for obtaining pure aprepitant substantially free of undesired diastereomeric isomer, namely 5-[2(S)-[1(RS)-[3,5-bis(trifluoromethyl)-phenyl)ethoxy]-3-(S)-(4-fluorophenyl)-morpholin-4-yl-methyl]-3,4-dihydro-2H-1,2,4-triazol-3-one. The present invention further provides an improved process for preparation of aprepitant crystalline form II. The present invention also relates to novel amorphous form of aprepitant, a process for its preparation and to a pharmaceutical composition comprising it. The present invention further relates to aprepitant having a mean particle size of less than about 11.5 microns, a process for its preparation and to a pharmaceutical composition comprising it. Thus, for example, aprepitant having a content of diastereomeric impurity of 1.1% is dissolved in ethyl acetate at 70° C., the solution is concentrated to half the initial volume by distilling off ethyl acetate, and the resulting solid is collected at 0-5° C. to give pure aprepitant substantially free of its diastereomeric impurity.
Method of treating cancers with SAHA and pemetrexed
申请人:Pluda James
公开号:US20070117815A1
公开(公告)日:2007-05-24
The present invention relates to a method of treating cancer in a subject in need thereof, by administering to a subject in need thereof a first amount of a histone deacetylase (HDAC) inhibitor or a pharmaceutically acceptable salt or hydrate thereof, and a second amount of an anti-cancer agent. The HDAC inhibitor and the anti-cancer agent may be administered to comprise therapeutically effective amounts. In various aspects, the effect of the HDAC inhibitor and the anti-cancer agent may be additive or synergistic.