title: [Therapy of solid tumors using high-dose methotrexate and citrovorum factor].
abstract: Methotrexat (250-1100 mg/m2) was administered to 38 patients with malignant tumors by infusion of either 6 hours or of 75 minutes duration. MTX-infusion and continued at 3-6 hours interval for Citrovorum factor rescue was started 2 hours after 24 to 72 hours. 7 different MTX doses and rescue schedules were tested. It could be shown that MTX in the dose range used is effective in various tumors when CF-rescue is not higher than 7% of the administered MTX-dose, only occasionally therapeutic success was observed with higher doses. In the group of patients where CF-rescue was lower than 7% of the MTX dose on 9/14 patients objective tumor-regressions could be achieved. Conclusions drawn are discussed and the necessity of further investigations is emphasized.
mesh_terms: D000284:Administration, Oral; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007273:Injections, Intramuscular; D007275:Injections, Intravenous; D002955:Leucovorin / Q000008:administration & dosage* / Q000627:therapeutic use; D008297:Male; D008727:Methotrexate / Q000008:administration & dosage* / Q000627:therapeutic use; D008875:Middle Aged; D009369:Neoplasms / Q000188:drug therapy*
chemical_list: D002955:Leucovorin; D008727:Methotrexate
vernacular_title: Zur Therapie solider Tumoren mit hochdosiertem Methotrexat und Citrovorum-Faktor