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Dose-Intensified Chemotherapy for Breast Cancer: Present and Future Prospects.
1Department of Geneal Surgery, Tokai University School of Medicine, Bohseidai, Isehara 259-11, Japan.
High-dose chemotherapy with stem cell support shows promise for metastatic and high-risk breast cancer. Further randomized trials are needed to confirm its superiority over conventional treatments.
Area of Science:
- Oncology
- Hematology
Background:
- Maximizing chemotherapy in breast cancer treatment is an ongoing trend.
- Peripheral blood stem cell transplantation and hematopoietic growth factors can mitigate myelosuppression from dose-intensified chemotherapy.
Purpose of the Study:
- To evaluate the efficacy of dose-intensified chemotherapy with stem cell support in breast cancer.
- To assess the role of this treatment in metastatic and adjuvant settings.
Main Methods:
- Review of studies on high-dose chemotherapy with peripheral blood stem cells and hematopoietic growth factors.
- Analysis of response rates and complete response rates in metastatic breast cancer.
- Consideration of data in the adjuvant setting for high-risk breast cancer.
Main Results:
- High response rates (up to 100%) and complete response rates (nearly 80%) reported in metastatic breast cancer.
- Promising results observed in the adjuvant setting for high-risk breast cancer.
- High-dose chemotherapy studies often involve highly-selected patients.
Conclusions:
- Dose-intensified chemotherapy with stem cell support demonstrates significant efficacy in certain breast cancer populations.
- Ongoing controversy exists regarding its superiority compared to conventional-dose chemotherapy.
- Participation in randomized clinical trials is strongly recommended to clarify treatment effectiveness.
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