US Patent Issued to Eisai R&D Management on Sept. 1 for "Pharmaceutical composition for treating solid tumors" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,851, issued on Sept. 1, was assigned to Eisai R&D Management Co. Ltd. (Tokyo).

"Pharmaceutical composition for treating solid tumors" was invented by Toshiyuki Tamai (Tokyo) and Satoshi Nagao (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a pharmaceutical composition for treating a solid tumor, comprising (6S,9aS)-N-benzyl-8-({6-[3-(4-ethylpiperazin-1-yl)azetidin-1-yl]pyridin-2-yl}methyl)-6-(2-fluoro-4-hydroxybenzyl)-4,7-dioxo-2-(prop-2-en-1-yl)hexahydro-2H-pyrazino[2,1-c][1,2,4]triazine-1(6H)-carboxamide (Compound A) represented by the formula (I) or a pharmaceutically acceptable salt thereof, wherein the pharm...