Abstract
Background
The recent immunotherapy treatment on triple-negative breast cancer (TNBC) leads to the breakthrough assignation. In this study, we have tried the new combinations of specific chemo with DC-CIKs immunotherapy to treat those patients.
Patients and methods
Twenty-three metastatic anthracyclines and taxanes pretreated TNBC younger (mean 41.5 years) patients were initially mobilized with cyclophosphamide (3 g/m2) for the preparation of CD34+ peripheral blood mononuclear cells as the resources for generating DC/CIKs and marrow function supports. All cases were subsequently experienced 2 cycles of chemotherapy with cyclophosphamide 3 g/m2, thiotepa 150 mg/m2, and carboplatin AUC = 6, Q4w. The patients then received 3 infusions of DC-CIKs at the chemo intervals and followed by maintenance therapy with oral cyclophosphamide 50 mg daily. The endpoints were progression-free survival and overall survival.
Results
The partial response rate was 13.0 %, stable and progressive disease rates were 56.5 and 30.4 %, respectively. The median PFS was 13.5 months (95 % confidence interval (CI) 10.1–16.9 months) and OS was 15.2 months (95 % CI 12.5–18.1 months). The most common serious adverse events were neutropenia (100.0 %) and anemia (69.7 %) but without treatment-related mortality.
Conclusion
These data suggested that such combination therapy model be effective and safe for younger metastatic TNBC exposure to previous anthracyclines and taxanes based adjuvant chemotherapy.
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Acknowledgments
We thank and remember the extraordinary courage and fortitude of the patients enrolled in this study who consent to participating this novel therapeutic model. We thank Sherry Gu PhD from Duke Clinical Research Institute of Duke University, Durham, NC, USA, for her assistance with the statistical analysis.
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There is no any interest conflict of all authors.
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Informed consent was obtained from all individual participants included in the study.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Funding
Beijing Municipal Science and Technology Project (Z151100004015183), Beijing Oncological Leadership Grant (No. 2009-2-16) and Natural Science Foundation of China (No. 81172534).
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Wang, X., Ren, J., Zhang, J. et al. Prospective study of cyclophosphamide, thiotepa, carboplatin combined with adoptive DC-CIK followed by metronomic cyclophosphamide therapy as salvage treatment for triple negative metastatic breast cancers patients (aged <45). Clin Transl Oncol 18, 82–87 (2016). https://doi.org/10.1007/s12094-015-1339-2
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DOI: https://doi.org/10.1007/s12094-015-1339-2