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Abstract PD4-07: Are aromatase inhibitors associated with higher myocardial infarction risk in breast cancer patients? A Medicare population study
Conclusions: The occurrence of MI is very low in this cohort (4.4%), reassuring the clinicians that the older adults with comorbidities may not be at a higher risk of MI with adjuvant endocrine therapy. However, the confidence interval for the hazard ratio of AIs vs Tamoxifen is very wide, indicating that a larger sample may be needed for the power of the study to be conclusive.Citation Format: Kamaraju S, Smith E, Shi Y, Laud P, Neuner J. Are aromatase inhibitors associated with higher myocardial infarction risk in breast cancer patients? A Medicare population study [abstract]. In: Proceedings of the Thirty-Ninth Annual C...
Source: Cancer Research - February 13, 2017 Category: Cancer & Oncology Authors: S Kamaraju, E Smith, Y Shi, P Laud, J Neuner Tags: Poster Discussion Abstracts Source Type: research

Abstract P2-01-23: Long-term follow-up of persistent breast dermopigmentation after sentinel lymph node identification using superparamagnetic iron oxide particles (SIENNA+(R))
Patients with breast cancer (BC) and those at high risk for BC are often reluctant to initiate Tamoxifen (Tam) due to potential adverse events (AEs) such as deep vein thrombosis (DVT), pulmonary embolus (PE), acute ischemic stroke (AIS), myocardial infarction (MI) and endometrial cancer (EC). Some decline this life saving therapy due to fear of AEs. AE rates from RCTs are low, but AE rates in the general population are not well documented.Methods: The MarketScanR database (2010-2013) was searched for patients aged 30-64 with a prescription of Tam active for more than 120 days. Patients with prior DVT, PE, AIS, MI or EC wer...
Source: Cancer Research - February 13, 2017 Category: Cancer & Oncology Authors: K Hannebicque, L Boulanger, E Bogart, S Giard, MP Chauvet, JL Houpeau Tags: Poster Session Abstracts Source Type: research

Abstract 1341: Endocrine deprivation therapy increases the sensitivity of breast cancer cells to T cell-mediated lysis independently of estrogen receptor or androgen receptor status
Estrogen deprivation therapy has been used as the first line adjuvant hormonal therapy for breast cancer for over 20 years. Tamoxifen, the first drug discovered to inhibit estrogen receptor signaling, is used to treat premenopausal women with estrogen receptor positive tumors. Although tamoxifen can be therapeutic in most women with estrogen receptor positive tumors, some women do not respond and others eventually develop resistance. In addition, tamoxifen has minimal effect on the growth of estrogen receptor negative tumors, including triple negative breast cancer, which has the poorest prognosis. Furthermore, prolonged a...
Source: Cancer Research - August 2, 2015 Category: Cancer & Oncology Authors: Kwilas, A. R., Ardiani, A., Gameiro, S. R., Hodge, J. W. Tags: Immunology Source Type: research

Abstract PD4-2: Cardiovascular toxicity following aromatase inhibitor use in 13,273 survivors cared for in a HMO
Discussion These results indicate that variation exists in the type of CVD events that occur in breast cancer patients receiving AIs in comparison to tamoxifen users. For example, the risk of ischemic disease or stroke was not elevated in those who used AIs only versus TAM users. However, overall CVD events were greater in women who used AIs only (or sequentially after TAM), especially if they received left-sided breast irradiation. While these observational study results require cautious interpretation, they provide a basis for comparing the benefits and risks of endocrine treatments. Citation Format: Reina Haque, Joanne ...
Source: Cancer Research - April 30, 2015 Category: Cancer & Oncology Authors: Haque, R., Schottinger, J. E., Shi, J., Chung, J., Avila, C., Amundsen, B., Chlebowski, R. T. Tags: Poster Discussion Abstracts Source Type: research