[Complete tumor regression obtained by chemoendocrine therapy including toremifene in two cases of pulmonary metastasis of breast cancer with a history of tamoxifen treatment].
Two cases of recurrent breast cancer, for which combined therapy using toremifene and oral chemotherapeutic agents were effective, are reported. In case 1, high-dose toremifene (120 mg/day) and 5'-DFUR were administered to a forty-seven-year-old woman with lung metastasis of estrogen-receptor positive breast cancer, who had been previously treated with polychemotherapy and tamoxifen. A complete response was obtained after six months of treatment and this condition has remained for longer than one year. In case 2, a fifty-year-old woman developed liver and lung matastasis of breast cancer with increased tumor marker levels. Forty mg/day of toremifene and oral cyclophosphamide was started and transarterial embolization of the hepatic artery using lipiodol, adriamycin and mitomycin C was performed. Both hepatic and pulmonary metastasis disappeared, and the tumor maker level was normalized one month later. No regrowth of the tumors has been observed for more than six months. The chemosensitizing effect of toremifene might be responsible for the favorable effects on these matastases of breast cancer.
Yamada
Y
Y
Dept. of Surgery, Kitasato Institute Hospital.
Miyagawa
T
T
Toyoda
H
H
Uesato
K
K
Asanuma
F
F
D000230:Adenocarcinoma / Q000188:drug therapy* / Q000556:secondary*; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000473:pathology*; D003520:Cyclophosphamide / Q000008:administration & dosage; D005260:Female; D005467:Floxuridine / Q000008:administration & dosage; D006801:Humans; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000556:secondary*; D008875:Middle Aged; D016685:Mitomycin / Q000008:administration & dosage; D012074:Remission Induction; D013629:Tamoxifen / Q000008:administration & dosage; D017312:Toremifene / Q000008:administration & dosage*
D005467:Floxuridine; D013629:Tamoxifen; D016685:Mitomycin; D017312:Toremifene; D003520:Cyclophosphamide; C025034:doxifluridine