TAS-103 has been reported to be a potent topoisomerase II poison. TAS-103 showed the strongest antitumor activity among the conventional anticancer agents for colorectal cancer (p<0.05). The combination with CDDP augmented the antitumor activity of TAS-103 (p<0.05), indicating that CDDP is one of the most potent candidates to be used in combination with TAS-103. TAS-103 may be useful in the chemotherapy of colorectal cancer. TAS-103 is a novel type of anticancer agent with a unique mechanism and could be useful as a lead compound for development of new drugs.TAS-103 will be expected to show excellent antitumor activities against a wide range of human tumors. TAS-103 showed the strongest antitumor activity among the conventional anticancer agents for colorectal cancer (p<0.05).
Molecular Weight | 406.31 |
Formula | C20H21Cl2N3O2 |
CAS Number | 174634-09-4 |
Solubility (25°C) | Water 40 mg/mL |
Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for Compound A of 10 mg/kg.
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