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Restrict the search for
pemetrexed
to a specific field?
Status:
US Approved Rx
(2022)
Source:
ANDA090384
(2022)
Source URL:
First approved in 2004
Source:
NDA021677
Source URL:
Class (Stereo):
CHEMICAL (ABSOLUTE)
Pemetrexed is a new-generation antifolate, approved for the treatment of mesothelioma and non-small cell lung cancer, currently being evaluated for the treatment of a variety of other solid tumors.
Pemetrexed, is a folate analog metabolic inhibitor that exerts its action by disrupting folate-dependent metabolic processes essential for cell replication. In vitro studies have shown that pemetrexed inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), glycinamide ribonucleotide formyltransferase (GARFT) and and to a lesser extent aminoimidazole carboxamide ribonucleotide formyltransferase (AICARFT), which are folate-dependent enzymes involved in the de novo biosynthesis of thymidine and purine nucleotides. Pemetrexed is taken into cells by membrane carriers such as the reduced folate carrier and membrane folate binding protein transport systems. Once in the cell, pemetrexed is converted to polyglutamate forms by the enzyme folylpolyglutamate synthetase. The polyglutamate forms are retained in cells and are inhibitors of TS and GARFT. Polyglutamation is a time- and concentration-dependent process that occurs in tumor cells and, is thought to occur to a lesser extent, in normal tissues. Polyglutamated metabolites are thought to have an increased intracellular half-life resulting in prolonged drug action in malignant cells.
Status:
US Approved Rx
(2022)
Source:
ANDA090384
(2022)
Source URL:
First approved in 2004
Source:
NDA021677
Source URL:
Class (Stereo):
CHEMICAL (ABSOLUTE)
Pemetrexed is a new-generation antifolate, approved for the treatment of mesothelioma and non-small cell lung cancer, currently being evaluated for the treatment of a variety of other solid tumors.
Pemetrexed, is a folate analog metabolic inhibitor that exerts its action by disrupting folate-dependent metabolic processes essential for cell replication. In vitro studies have shown that pemetrexed inhibits thymidylate synthase (TS), dihydrofolate reductase (DHFR), glycinamide ribonucleotide formyltransferase (GARFT) and and to a lesser extent aminoimidazole carboxamide ribonucleotide formyltransferase (AICARFT), which are folate-dependent enzymes involved in the de novo biosynthesis of thymidine and purine nucleotides. Pemetrexed is taken into cells by membrane carriers such as the reduced folate carrier and membrane folate binding protein transport systems. Once in the cell, pemetrexed is converted to polyglutamate forms by the enzyme folylpolyglutamate synthetase. The polyglutamate forms are retained in cells and are inhibitors of TS and GARFT. Polyglutamation is a time- and concentration-dependent process that occurs in tumor cells and, is thought to occur to a lesser extent, in normal tissues. Polyglutamated metabolites are thought to have an increased intracellular half-life resulting in prolonged drug action in malignant cells.
Status:
Investigational
Source:
NCT00942825: Phase 2 Interventional Completed Metastatic Non-squamous Non Small Cell Lung Cancer
(2009)
Source URL:
Class (Stereo):
CHEMICAL (ABSOLUTE)
CBP-501 is a chemically modified duodecapeptide and an analog of M-phase inducer phosphatase 3 (CDC25C) that increase cisplatin influx into tumor cells through an interaction with calmodulin enhancing cisplatin cytotoxicity, and affects cell cycle progression by abrogating DNA repair at the G2 checkpoint. CBP501 selectively inhibits the kinases MAPKAP-K2, C-TAK1, and CHK1 in vitro. Cell lines exposed to CBP501 plus bleomycin show a dose-dependent reduction of phosphorylated Ser216 on CDC25C. In addition to these effects on the G2 checkpoint, CBP501 also increases platinum concentration and DNA-platinum adduct formation in tumor cells through binding with calmodulin. In an in vitro panel testing the sensitivity of several tumor-derived cell lines to CBP501 in combination with a variety of anti-cancer agents, the combination of CBP501 with cisplatin was particularly effective against all four mesothelioma cell lines tested. Unfortunately, CBP-501 does not improve the efficacy of standard chemotherapy for malignant pleural mesothelioma.
