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2.
Breast Cancer Res Treat ; 146(3): 567-72, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25001611

RESUMO

The purpose of this study was to evaluate the efficacy of platinum-based chemotherapy (PBC) versus conventional non-PBC regimens in a metastatic triple-negative breast cancer (TNBC) setting. We reviewed the electronic patient records of patients with confirmed metastatic TNBC at four major cancer centres in Canada. All patients were allocated into two groups based on type of chemotherapy received (PBC vs. non-PBC) and line of treatment (first-, second-, or third-line). The primary objective of this study was to evaluate the efficacy of PBC in metastatic TNBC in terms of median duration of overall survival (OS) from diagnosis of distant metastatic disease and compare it with the efficacy of conventional non-platinum-based chemotherapy in metastatic TNBC after controlling for known prognostic factors. A total of 153 metastatic TNBC patients were identified, 58 treated with PBC and 95 with non-PBC. The median time in first-line PBC versus non-PBC was not different between the two groups (2 vs. 2 months, p = 0.9), the median time on treatment in second and third-line therapy was longer for the PBC group compared to the conventional treated group (4 vs. 1 months, p = 0.004; 4 vs. 0.5 months, p = 0.004, respectively). Patients who received PBC had a longer OS compared to those managed conventionally (14.5 vs. 10 months, p = 0.041). This study evaluates the survival outcomes in a homogenous group of TNBC metastatic patients treated with or without PBC. Our results confirmed our hypothesis of a better OS among PBC-treated TNBC patients compared to conventionally managed TNBC patients. Currently ongoing Phase III trials assessing the benefit of PBC versus other chemotherapeutic regimens in advanced TNBC will help define the role of these agents for the management of this breast cancer subtype.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Metástase Neoplásica/tratamento farmacológico , Platina/uso terapêutico , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Canadá , Intervalo Livre de Doença , Registros Eletrônicos de Saúde , Feminino , Humanos , Metástase Neoplásica/patologia , Estadiamento de Neoplasias , Resultado do Tratamento , Neoplasias de Mama Triplo Negativas/epidemiologia , Neoplasias de Mama Triplo Negativas/patologia
3.
Clin Breast Cancer ; 6(5): 391-401, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16381622

RESUMO

Breast cancer is the most common type of cancer and the most common cause of cancer-related mortality among women worldwide. However, the burden is not evenly distributed, and, according to the best available data, there are large variations in the incidence, mortality, and survival between different countries and regions and within specific regions. Many complex factors underlie these variations, including population structure (eg, age, race, and ethnicity), lifestyle, environment, socioeconomic status, risk factor prevalence, mammography use, disease stage at diagnosis, and access to high-quality care. We review recent breast cancer incidence and mortality statistics and explore why these vary so greatly across the world. Further research is needed to fully understand the reasons for variations in breast cancer outcomes. This will aid the development of tailored strategies to improve outcomes in general as well as the standard of care for underserved populations and reduce the burden of breast cancer worldwide.


Assuntos
Neoplasias da Mama/epidemiologia , África/epidemiologia , Fatores Etários , América/epidemiologia , Ásia/epidemiologia , Austrália/epidemiologia , Neoplasias da Mama/mortalidade , Canadá/epidemiologia , Europa (Continente)/epidemiologia , Feminino , Humanos , Incidência , México/epidemiologia , Taxa de Sobrevida , Estados Unidos/epidemiologia
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