Germline BRCA1/2 mutations and severe haematological toxicities in patients with breast cancer treated with neoadjuvant chemotherapy
Background - BRCA1 and BRCA2 play a central role in DNA repair. Therefore, patients harbouring germline (g) BRCA1/2 mutations (m) treated with chemotherapy might be at higher risk of haematological toxicities. - Methods - Patients from German Breast Group (GBG) and Arbeitsgemeinschaft Gynäkologisch...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
7 January 2021
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| In: |
European journal of cancer
Year: 2021, Jahrgang: 145, Pages: 44-52 |
| ISSN: | 1879-0852 |
| DOI: | 10.1016/j.ejca.2020.12.007 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.ejca.2020.12.007 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0959804920314210 
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| Verfasserangaben: | Jenny Furlanetto, Volker Möbus, Andreas Schneeweiss, Kerstin Rhiem, Hans Tesch, Jens-Uwe Blohmer, Kristina Lübbe, Michael Untch, Christoph Salat, Jens Huober, Peter Klare, Rita Schmutzler, Fergus J. Couch, Bianca Lederer, Bernd Gerber, Dirk-Michael Zahm, Ingo Bauerfeind, Valentina Nekljudova, Claus Hanusch, Christian Jackisch, Theresa Link, Eric Hahnen, Sibylle Loibl, Peter A. Fasching |
MARC
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| 245 | 1 | 0 | |a Germline BRCA1/2 mutations and severe haematological toxicities in patients with breast cancer treated with neoadjuvant chemotherapy |c Jenny Furlanetto, Volker Möbus, Andreas Schneeweiss, Kerstin Rhiem, Hans Tesch, Jens-Uwe Blohmer, Kristina Lübbe, Michael Untch, Christoph Salat, Jens Huober, Peter Klare, Rita Schmutzler, Fergus J. Couch, Bianca Lederer, Bernd Gerber, Dirk-Michael Zahm, Ingo Bauerfeind, Valentina Nekljudova, Claus Hanusch, Christian Jackisch, Theresa Link, Eric Hahnen, Sibylle Loibl, Peter A. Fasching |
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| 520 | |a Background - BRCA1 and BRCA2 play a central role in DNA repair. Therefore, patients harbouring germline (g) BRCA1/2 mutations (m) treated with chemotherapy might be at higher risk of haematological toxicities. - Methods - Patients from German Breast Group (GBG) and Arbeitsgemeinschaft Gynäkologische Onkologie-breast group studies with early triple-negative breast cancer (TNBC) and known gBRCA1/2m status treated with anthracycline-taxane-based neoadjuvant chemotherapy were analysed. Primary objective was the rate of neutropenia grade (G)III-IV in cycle 1 (C1). Secondary objectives included effects on overall and other haematological toxicities GIII-IV in C1, cumulative haematological toxicity across all cycles, relative total dose intensity, and granulocyte-colony stimulating factor prophylaxis. Haematological toxicities under taxanes, carboplatin, and cyclophosphamide were explored. - Results - Two hundred nine of 1171 (17.8%) evaluated patients had gBRCA1/2m. In C1, 37.4% gBRCA1/2m versus 35.7% wild-type patients had neutropenia GIII-IV (P = 0.683). For C1, gBRCA1/2m predicted neither for neutropenia GIII-IV (odds ratio [OR]: 1.26, 95% confidence intervals [CI]: 0.87-1.82, P = 0.226) nor for other haematological toxicities GIII-IV (OR: 0.91, 95% CI: 0.64-1.31, P = 0.625) in multivariable regression models. Analyses of cumulative toxicities across all cycles yielded similar results except thrombocytopaenia GIII-IV, which was increased in gBRCA1m patients. In patients treated with taxanes, the rate of haematological toxicities GIII-IV was higher in gBRCA1/2m compared with wild-type (59.5% versus 43.1%; p < 0.001). No difference was seen under cyclophosphamide or platinum-containing chemotherapies. - Conclusions - gBRCA1/2m was not associated with higher risk of overall severe haematological toxicities in the first cycle or cumulatively across all cycles under standard chemotherapy for TNBC. Under taxane, patients with gBRCA1/2m might have a higher risk of haematological toxicities GIII-IV, requiring further research. | ||
| 650 | 4 | |a Carboplatin | |
| 650 | 4 | |a g mutation | |
| 650 | 4 | |a Hematological toxicities | |
| 650 | 4 | |a Neoadjuvant chemotherapy | |
| 650 | 4 | |a Neutropenia | |
| 650 | 4 | |a Taxanes | |
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| 700 | 1 | |a Tesch, Hans |e VerfasserIn |4 aut | |
| 700 | 1 | |a Blohmer, Jens-Uwe |e VerfasserIn |4 aut | |
| 700 | 1 | |a Lübbe, Kristina |e VerfasserIn |4 aut | |
| 700 | 1 | |a Untch, Michael |e VerfasserIn |4 aut | |
| 700 | 1 | |a Salat, Christoph |e VerfasserIn |4 aut | |
| 700 | 1 | |a Huober, Jens |e VerfasserIn |4 aut | |
| 700 | 1 | |a Klare, Peter |e VerfasserIn |4 aut | |
| 700 | 1 | |a Schmutzler, Rita |e VerfasserIn |4 aut | |
| 700 | 1 | |a Couch, Fergus J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Lederer, Bianca |e VerfasserIn |4 aut | |
| 700 | 1 | |a Gerber, Bernd |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zahm, Dirk-Michael |e VerfasserIn |4 aut | |
| 700 | 1 | |a Bauerfeind, Ingo |e VerfasserIn |4 aut | |
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