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Keywords:

  • high-dose;
  • chemotherapy;
  • stem;
  • cell;
  • metastatic;
  • breast;
  • cancer

Abstract: Fifty-four patients with metastatic breast cancer were treated with high-dose paclitaxel (200 mg/m2), cyclophosphamide (5,625 mg/m2) and cisplatin (165 mg/m2) with autologous stem cell support. Median age of the group was 43 years (range 24–58); half of the patients had received ≥2 prior regimens for metastatic disease. The interval between completion of standard therapy and initiation of high-dose therapy was less than 60 days. Four patients were in complete remission (CR) prior to high-dose chemotherapy. Among patients with measurable disease 15 (44%) attained CR after high-dose chemotherapy. At a median follow-up of 19.2 months, 13 patients continue in CR and 18 patients (36%) are free from progressive disease. Thirty-two patients have relapsed, 14 of whom developed disease at new sites. There was no difference in pattern of relapse between patients receiving bone marrow versus peripheral blood stem-cell rescue. Overall, toxicities of this high-dose chemotherapy regimen were manageable. Four patients (7%) died of treatment-related complications. Two died of diffuse alveolar hemorrhage, one of congestive heart failure, and one of systemic fungal infection. Neurologic toxicity was mild and might have been ameliorated by supplemental pyridoxine.