High-Dose Chemotherapy With Autologous Hematopoietic Stem Cell Transplantation for High-Risk Primary Breast Cancer

<span class="paragraphSection"><div class="boxTitle">Abstract</div><div class="boxTitle">Background:</div>The efficacy of high-dose chemotherapy (HDC) and autologous hematopoietic stem cell transplantation for breast cancer (BC) has been an area of intense controversy among the medical oncology community. Over the last decade, due to the presentation of negative results from early randomized studies, this approach has not longer been considered an option by the vast majority of medical oncologists. This article is aimed to clarify what happened and where we are now in this not exhausted field.<div class="boxTitle">Methods:</div>We critically revised the published literature regarding HDC in the setting of high-risk BC, including a recent meta-analysis using individual patient data from 15 randomized studies.<div class="boxTitle">Results:</div>A significant benefit by HDC in recurrence-free survival has been clearly documented in unselected patient populations. In HER2-negative population, particularly in the triple-negative disease, a positive effect of intensified therapy in overall survival is biologically plausible and supported by clinical evidence. Over the years HDC with support of adequate number of stem cells has become a safe treatment modality.<div class="boxTitle">Conclusions:</div>The administration of higher doses of chemotherapy with stem cell support may still represent a therapeutic option (and not a recommendation) in selected BC patients. This approach should be investigated further.</span>

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