Publications (60) View all
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Article: Factors associated with surgical management following neoadjuvant therapy in patients with primary HER2-positive breast cancer: results from the NeoALTTO phase III trial.
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ABSTRACT: Background The NeoALTTO trial showed that dual HER2 blockade nearly doubles the rate of pathologic complete response (pCR) in patients with primary HER2-positive breast cancer. However, this did not translate into a higher rate of breast-conserving surgery (BCS).Patients and methodsIn NeoALTTO, patients with HER2-positive breast cancer were randomly assigned to either trastuzumab, lapatinib or their combination with paclitaxel before surgery with pCR as the primary end point. We investigated the association between the surgery type and clinicopathological factors and response to treatment, adjusting for the treatment arm.ResultsFour hundred and twenty-nine patients were subjected to breast surgery. Two hundred and forty-two (56%) and 187 (44%) patients underwent mastectomy and BCS, respectively. In a logistic regression model, negative estrogen receptor (ER), multicentricity and the presence of a palpable mass before surgery were significantly associated with a low chance of BCS. Conversely, patients with small tumors and those eligible for BCS at diagnosis were managed more with BCS, independent of the treatment arm. Radiological response was not associated with the surgical decision.Conclusions Tumor characteristics before neoadjuvant therapy play a main role in deciding the type of surgery calling for a clear consensus on the role of BCS in patients responding to neoadjuvant therapy.Annals of Oncology 04/2013; · 6.43 Impact Factor -
Article: Understanding the biology of triple-negative breast cancer.
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ABSTRACT: Greater understanding of the biology of triple-negative breast cancer (TNBC) is needed to discern the roughly 60% of node-negative patients who are already cured with locoregional therapy from the 40% who need adjuvant systemic therapy to be cured. Recent evidence suggests that patients with TNBC whose tumours have an activated immune response gene signature have a more favourable outcome than TNBC patients without this signature. For the group who needs additional systemic therapy, the challenge remains to choose the right systemic drug combination for the right TNBC sub-type. Significant heterogeneity exists within the TNBC class that is exemplified by differing chemotherapeutic sensitivity observed for some sub-types. This heterogeneity establishes the need for identifying differentiating molecular markers within the overall class of TNBC disease, which may help refine therapeutic management. In this review, we discuss some of these promising predictive molecular markers for tailoring therapy. In addition, several gene expression profiling and functional studies employing genetic screens that help to establish TNBC sub-groups with varying sensitivities to a variety of targeted therapies currently under clinical investigation are conferred. It is anticipated that a greater understanding of the biology of TNBC and its complex heterogeneity will reveal novel targets or identify markers around which clinical trials in molecularly well-defined sub-groups can be designed.Annals of Oncology 08/2012; 23 Suppl 6:vi13-vi18. · 6.43 Impact Factor -
Article: "The only thing I know is that I know nothing": 5-fluorouracil in human milk.
Annals of Oncology 02/2012; 23(2):543-4. · 6.43 Impact Factor -
Article: Treatment of breast cancer during pregnancy: regimen selection, pregnancy monitoring and more...
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ABSTRACT: Breast cancer is uncommonly diagnosed during pregnancy but when encountered, it poses several clinical conflicts. Managing patients with gestational breast cancer should not be associated with considerable risk of morbidity provided the choice of the right drug in the right time for the right patient. Due to its relative rarity, we lack a standardized approach to manage these patients. Previous reports have suggested that women can be offered treatment strategies similar to those offered in the "non-pregnant" setup. Nevertheless, generalizing treatment decisions is too hard and treatment of these cases should be tailored according to the clinical situation. In order to ensure proper counseling of these patients, there are several key points that need to be addressed. These include timing of chemotherapy administration, the scheduling of agents, and pregnancy monitoring. In this review, we provide some guidance on how to select the chemotherapy regimen and address the feasibility and safety of administering trastuzumab during pregnancy. We also discuss some practical points on monitoring these patients during the course of pregnancy.Breast (Edinburgh, Scotland) 02/2011; 20(1):1-6. · 2.09 Impact Factor -
Article: Long-term toxic effects of adjuvant chemotherapy in breast cancer.
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ABSTRACT: Breast cancer is the most common malignant tumor affecting women. Adjuvant systemic therapies have been shown to have a significant impact on reducing the risk for breast cancer recurrence and overall mortality. Chemotherapy remains an important and frequently used treatment option in the adjuvant setting, and the associated short-term adverse events are very well described. However, there is insufficient information regarding the long-term sequelae of most chemotherapeutic agents. In this review, we describe different potential long-term adverse events associated with adjuvant chemotherapy in breast cancer, with a particular focus on long-term cardiac toxicity, secondary leukemia, cognitive function, and neurotoxicity. In addition, we discuss the effect of adjuvant chemotherapy on fertility and sexual function of young breast cancer patients. These adverse events are frequently overshadowed by the well-demonstrated clinical efficacy and/or reassuring short-term safety profiles of the different chemotherapy regimens commonly used today. We believe that a proper understanding and appreciation of these adverse events will enable us to refine our strategies for managing breast cancer. The fact that adjuvant chemotherapy is often given to patients who might not really need it urges us to consider the whole spectrum of chemotherapy risks versus benefits to maximize benefit without compromising quality of life.Annals of Oncology 02/2011; 22(9):1939-47. · 6.43 Impact Factor
