Irinotecan

Irinotecan is a water soluble topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex.
Solid
Irinotecan is a member of the class of pyranoindolizinoquinolines that is the carbamate ester obtained by formal condensation of the carboxy group of [1,4'-bipiperidine]-1'-carboxylic acid with the phenolic hydroxy group of (4S)-4,11-diethyl-4,9-dihydroxy-1H-pyrano[3',4':6,7]indolizino[1,2- hydrochloride]quinoline-3,14-dione. Used (in the form of its hydrochloride salt trihydrate) in combination with fluorouracil and leucovorin, for the treatment of patients with metastatic adenocarcinoma of the pancreas after disease progression following gemcitabine-based therapy. It is converted via hydrolysis of the carbamate linkage to its active metabolite, SN-38, which is ~1000 times more active. It has a role as an apoptosis inducer, an EC 5.99.1.2 (DNA topoisomerase) inhibitor, an antineoplastic agent and a prodrug. It is a pyranoindolizinoquinoline, a N-acylpiperidine, a carbamate ester, a tertiary alcohol, a tertiary amino compound, a delta-lactone and a ring assembly. It derives from a SN-38. It is a conjugate base of an irinotecan(1+).|Irinotecan is an antineoplastic enzyme inhibitor primarily used in the treatment of colorectal cancer. It is a derivative of camptothecin that inhibits the action of topoisomerase I. Irinotecan prevents religation of the DNA strand by binding to topoisomerase I-DNA complex, and causes double-strand DNA breakage and cell death. It is a derivative of camptothecin. Irinotecan was approved for the treatment of advanced pancreatic cancer in October, 2015 (irinotecan liposome injection, trade name Onivyde).|Irinotecan is a Topoisomerase Inhibitor. The mechanism of action of irinotecan is as a Topoisomerase Inhibitor.|Irinotecan and topotecan are semisynthetic derivatives of the plant alkaloid camptothecin and are used as antineoplastic agents in the therapy of colorectal, ovarian and non-small cell lung cancer. Both irinotecan and topotecan are associated with an appreciable rate of serum enzyme elevations during therapy, and irinotecan has been implicated in causing steatohepatitis when given as cyclic anticancer therapy.|A semisynthetic camptothecin derivative that inhibits DNA TOPOISOMERASE I to prevent nucleic acid synthesis during S PHASE. It is used as an antineoplastic agent for the treatment of COLORECTAL NEOPLASMS and PANCREATIC NEOPLASMS.