PMID: 15222111Jun 30, 2004Paper

A case of breast cancer with multiple bone metastases demonstrating complete remission with high-dose toremifene therapy

Gan to kagaku ryoho. Cancer & chemotherapy
Yoshihito SaitoNanao Negishi

Abstract

We report a 64-year-old woman who underwent mastectomy for stage II (T2N1M0) advanced breast cancer, in whom multiple spine metastases developed 18 months postoperatively. She received 6 cycles of CA (cyclophosphamide 500 mg/m2, ADM 50 mg/m2 3 wq) therapy and oral tamoxifen (20 mg/body) administration for adjuvant therapy. The multiple bone metastases of the spine were revealed by technetium bone scan. The level of serum tumor marker CA15-3 increased two times over the normal range 18 months after surgery. She also developed osteoporosis a few years later, so we selected high-dose toremifene administration (120 mg/body) as a second-line therapy. No adverse effects have occurred and bone metastases disappeared. Moreover, the tumor marker was also normalized 6 months after toremifene therapy started. It was shown that high-dose treatment of toremifene was useful for recurrent breast cancer with bone metastasis.

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