[Comparative evaluation of 2 schedules of administration of anti- neoplastic drugs by the CMF protocol in disseminated breast cancer].

Combined chemotherapy with cyclophosphamide, methotrexate, fluorouracil (CMF) in two regimens of administration was comparatively assessed in a randomized and prospective trial. Group I patients (n = 34) received methotrexate and fluorouracil once a week and cyclophosphamide every other day for 15 days. In group II (n = 32) all the drugs were given simultaneously once weekly for 15 days. A complete and partial response occurred significantly more frequently in patients of group I (36%) versus group II (7%). The intergroup difference in toxicity appeared insignificant.