Description
Ropidoxuridine is a novel, orally available 5-substituted 2-pyrimidinone-2'-deoxyribonucleoside analogue and prodrug of 5-iododeoxyuridine (IUdR). It has radiosensitizing activity. It is efficiently converted to idoxuridine (IUdR) by a hepatic aldehyde oxidase. It is incorporated into DNA during replication, thereby sensitizing cells to ionizing radiation by increasing DNA strand breaks. It is associated with a lower toxicity profile and improved anti-tumor activity. It has dose responsive and synergistic effects. It has also shown reduced toxicity, with better tissue incorporation and improved anti-tumor activity. It maybe used to treat colorectal, gastric, and pancreatic cancer, and other solid tumors