[Endocrine chemotherapy (high-dose toremifene + 5'-DFUR) found markedly effective for 2 cases of metastatic breast cancer].

Two cases of metastatic breast cancer are reported in which endocrine chemotherapy with Toremifene + 5'-DFUR proved markedly effective. Case 1: A 69-year-old female. After CAF therapy as a adjuvant chemotherapy, Tamoxifen and Tegafur had been administered. At the 5th postoperative year, multiple metastases to lung and a rise in the tumor marker were found. Since the patient was not desirous of intensive chemotherapy, administration of Toremifene 120 mg/day and 5'-DFUR 800 mg/day was initiated. The patient showed PR 9 months after and achieved CR 14 months later. Case 2: A 48-year-old female. CAF therapy for a total of 6 cycles was performed as adjuvant chemotherapy. The patient was administered Tamoxifen and followed. On bone scintigrams 3.5 years after surgery, an abnormal accumulation appeared in the left sternoclavicular joint, and an infiltrative tumor mass was formed in the skin of that region. Administration of Toremifene + 5'-DFUR was initiated. After 6 months, the infiltrative mass disappeared. These findings are suggestive of the effectiveness of this combined chemotherapy.