title: Reevaluation of 5-fluorouracil as a single therapeutic agent for gestational trophoblastic neoplasms.
abstract: Large dosage of 5-fluorouracil given by slow intravenous infusion has proved to be very effective in the treatment of gestational trophoblastic neoplasms. From 1965 through 1975, 5-fluorouracil was used as a single chemotherapeutic agent in 173 cases of invasive mole and 139 cases of choriocarcinoma. Complete remission was achieved in 84.9% of cases of invasive mole and in 59.3% of cases of choriocarcinoma when 5-fluorouracil was used as the initial treatment. Seven recurrences with three deaths occurred during follow-up in 216 patients who had achieved complete remission, providing a recurrence rate of 3.2% and recurrence death rate of 1.4%. All of the survivors were followed up for more than 5 years and 85.6% for more than 10 years. Toxicity of 5-fluorouracil was milder and less frequent than that of 6-mercaptopurine or methotrexate. The toxic reaction specific to 5-fluorouracil was diarrhea, which can result in pseudomembranous colitis if improperly treated. One of the two toxic deaths was due to this complication.
mesh_terms: D002822:Choriocarcinoma / Q000188:drug therapy* / Q000401:mortality; D003967:Diarrhea / Q000139:chemically induced; D005260:Female; D005472:Fluorouracil / Q000009:adverse effects / Q000627:therapeutic use*; D005500:Follow-Up Studies; D006801:Humans; D002820:Hydatidiform Mole, Invasive / Q000188:drug therapy* / Q000401:mortality; D015122:Mercaptopurine / Q000627:therapeutic use; D008727:Methotrexate / Q000627:therapeutic use; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy*; D011247:Pregnancy; D014594:Uterine Neoplasms / Q000188:drug therapy* / Q000401:mortality
chemical_list: D015122:Mercaptopurine; D005472:Fluorouracil; D008727:Methotrexate