Stereochemistry | ABSOLUTE |
Molecular Formula | C21H22N4O6S |
Molecular Weight | 458.488 |
Optical Activity | UNSPECIFIED |
Defined Stereocenters | 1 / 1 |
E/Z Centers | 0 |
Charge | 0 |
SHOW SMILES / InChI
SMILES
CN(CC1=CC2=C(C=C1)N=C(C)NC2=O)C3=CC=C(S3)C(=O)N[C@@H](CCC(O)=O)C(O)=O
InChI
InChIKey=IVTVGDXNLFLDRM-HNNXBMFYSA-N
InChI=1S/C21H22N4O6S/c1-11-22-14-4-3-12(9-13(14)19(28)23-11)10-25(2)17-7-6-16(32-17)20(29)24-15(21(30)31)5-8-18(26)27/h3-4,6-7,9,15H,5,8,10H2,1-2H3,(H,24,29)(H,26,27)(H,30,31)(H,22,23,28)/t15-/m0/s1
Raltitrexed belongs to a group of medicines known as antimetabolites. It is used to treat cancer of the colon and rectum. It may also be used to treat other kinds of cancer, as determined by your doctor. Raltitrexed blocks an enzyme needed by the cell to live. This interferes with the growth of cancer cells, which are eventually destroyed. Since the growth of normal body cells may also be affected by raltitrexed, other effects will also occur. Some of these may be serious and must be reported to your doctor. Other effects, like hair loss, may not be serious but may cause concern. Raltitrexed inhibits thymidylate synthase (TS) leading to DNA fragmentation and cell death. It is transported into cells via a reduced folate carrier. Inside the cell Raltitrexed is extensively polyglutamated, which enhances thymidylate synthase inhibitory power and duration. Inhibition of this enzyme results in decreased synthesis of thymidine triphosphate which is required for DNA synthesis. Raltitrexed is used for the treatment of malignant neoplasm of colon and rectum. Although raltitrexed is not approved by the US FDA, the drug was licensed in Canada and some European countries.
CNS Activity
Originator
Approval Year
Doses
AEs
PubMed
Sample Use Guides
The recommended dose is 3 mg/m2 given intravenously, as a single short, intravenous infusion in 50 to 250 ml of either 0.9% sodium chloride solution or 5% dextrose (glucose) solution. It is recommended that the infusion is given over a 15 minute period. Other drugs should not be mixed with 'Tomudex' (raltitrexed) in the same infusion container. In the absence of toxicity, treatment may be repeated every 3 weeks.
Dose escalation above 3 mg/m2 is not recommended, since higher doses have been associated with an increased incidence of life-threatening or fatal toxicity.
Route of Administration:
Intravenous