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https://www.readbyqxmd.com/read/28106545/the-alterations-of-serum-fgf-21-levels-metabolic-and-body-composition-in-early-breast-cancer-patients-receiving-adjuvant-endocrine-therapy
#1
Murat Akyol, Ahmet Alacacioglu, Leyla Demir, Yuksel Kucukzeybek, Yasar Yildiz, Zehra Gumus, Mete Kara, Tarik Salman, Umut Varol, Halil Taskaynatan, Utku Oflazoglu, Vedat Bayoglu, Mustafa Oktay Tarhan
BACKGROUND: In early breast cancer patients, the effects of hormonal therapy (tamoxifen and aromatase inhibitors) on plasma fibroblast growth factor 21 (FGF-21), lipid levels and body composition have not yet been investigated. Therefore, we aimed to analyze the relationship between FGF-21 and body composition as well as the effects of tamoxifen and aromatase inhibitors on plasma lipid levels, FGF-21, and body composition. METHODS: A total of 72 patients were treated with either tamoxifen or aromatase inhibitors due to their menopausal status after adjuvant radiotherapy...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28058096/breast-ductal-carcinoma-in-situ-a-literature-review-of-adjuvant-hormonal-therapy
#2
REVIEW
Stephen Kinsey-Trotman, Zumin Shi, Beverley Fosh
This review paper analyzed publications of adjuvant tamoxifen and aromatase inhibitor use following surgery for breast ductal carcinoma in situ (DCIS). Key endpoint analyses were risk of invasive and noninvasive malignancies and new contralateral breast cancers. Metaanalysis of three studies showed a relative risk of 0.69 (95% confidence interval, 0.60-0.79, P<0.05) for breast malignancies with tamoxifen treatment in a mixed radiotherapy treatment/naïve cohort. Subgroup analysis of DCIS populations in multiple studies showed a trend to benefit with aromatase inhibitor treatment...
October 10, 2016: Oncology Reviews
https://www.readbyqxmd.com/read/28053622/role-of-ovarian-function-suppression-in-premenopausal-women-with-early-breast-cancer
#3
REVIEW
Woo-Chan Park
Historically, endocrine therapy for breast cancer began with ovarian ablation (OA) for the treatment of premenopausal patients. After the identification of estrogen receptors and the development of many antiestrogens, tamoxifen has been approved and used as the standard endocrine therapy for hormonal receptor (HR)-positive premenopausal patients to date. With the development of luteinizing hormone-releasing hormone agonists, the paradigm of endocrine therapy for premenopausal women with HR-positive breast cancer began to change from OA to ovarian function suppression (OFS)...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28034069/association-between-out-of-pocket-costs-race-ethnicity-and-adjuvant-endocrine-therapy-adherence-among-medicare-patients-with-breast-cancer
#4
Albert J Farias, Xianglin L Du
Purpose Previous studies suggest that adherence to adjuvant endocrine therapy (AET) for patients with breast cancer is suboptimal, especially among minorities, and is associated with out-of-pocket medication costs. This study aimed to determine whether there are racial/ethnic differences in 1-year adherence to AET and whether out-of-pocket costs explain the racial/ethnic disparities in adherence. Methods This retrospective cohort study used the SEER-Medicare linked database to identify patients ≥ 65 years of age with hormone receptor-positive breast cancer who were enrolled in Medicare Part D from 2007 to 2009...
January 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28011074/patient-database-analysis-of-fulvestrant-500%C3%A2-mg-in-the-treatment-of-metastatic-breast-cancer-a-european-perspective
#5
Paolo Marchetti, Nicolai Maass, Joseph Gligorov, Karin Berger, Finlay MacDougall, Jukka Montonen, Jan Lewis
INTRODUCTION: Clinical guidelines recommend that patients with hormone receptor (HR)-positive metastatic breast cancer (MBC) should be preferentially treated with endocrine therapy. Fulvestrant (a selective estrogen receptor degrader) is approved for use in these patients following relapse after, or relapse or progression during, antiestrogen therapy. This descriptive study analyzed European treatment patterns for HR-positive MBC in real-world clinical practice. METHODS: The IMS Oncology Analyzer (OA), a retrospective cancer treatment database reporting physician-entered patient case histories, was used to identify records for postmenopausal women with HR-positive MBC from April 1, 2004 to June 30, 2013 in France, Germany, Italy, and Spain...
December 20, 2016: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/27998966/cardiotoxicity-of-aromatase-inhibitors-and-tamoxifen-in-post-menopausal-women-with-breast-cancer-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#6
REVIEW
F Khosrow-Khavar, K B Filion, S Al-Qurashi, N Torabi, N Bouganim, S Suissa, L Azoulay
BACKGROUND: Aromatase inhibitors (AIs) have been associated with cardiovascular disease in adjuvant randomized controlled trials (RCTs) comparing these drugs to tamoxifen. However, it is unclear whether this risk is real or due to cardioprotective effects of tamoxifen. To address this question, we conducted a systematic review and meta-analysis of all RCTs of AIs and tamoxifen in adjuvant and extended adjuvant setting. PATIENTS AND METHODS: We searched PubMed, Embase (OVID), Cochrane CENTRAL, WHO International Clinical Trials Registry Platform, and ClinicalTrials...
December 20, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27976369/clomiphene-and-other-antioestrogens-for-ovulation-induction-in-polycystic-ovarian-syndrome
#7
REVIEW
Julie Brown, Cindy Farquhar
BACKGROUND: Subfertility due to anovulation is a common problem in women. First-line oral treatment is with antioestrogens such as clomiphene citrate, but resistance may be apparent with clomiphene. Alternative and adjunctive treatments have been used including tamoxifen, dexamethasone, and bromocriptine. The effectiveness of these is to be determined. OBJECTIVES: To determine the relative effectiveness of antioestrogen agents including clomiphene alone or in combination with other medical therapies in women with subfertility associated with anovulation, possibly caused by polycystic ovarian syndrome...
December 15, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27967255/endocrine-therapy-in-epithelial-ovarian-cancer
#8
Simon P Langdon, Charlie Gourley, Hani Gabra, Barbara Stanley
The estrogen receptor (ER) is expressed at high levels in many epithelial ovarian cancers (EOC) and represents a potential target for endocrine therapy. Both anti-estrogens and aromatase inhibitors have been evaluated in phase II clinical trials. Areas covered: We present an overview of the phase II and phase III trials of anti-estrogens (tamoxifen and fulvestrant) and aromatase inhibitors (letrozole, anastrazole and exemestane) undertaken in epithelial ovarian cancer identified through a Pubmed search. We describe predictive biomarkers that are being investigated to identify responsive cancers...
December 24, 2016: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/27894075/mammographic-density-a-potential-monitoring-biomarker-for-adjuvant-and-preventative-breast-cancer-endocrine-therapies
#9
REVIEW
Michael S Shawky, Hilary Martin, Honor J Hugo, Thomas Lloyd, Kara L Britt, Andrew Redfern, Erik W Thompson
Increased mammographic density (MD) has been shown beyond doubt to be a marker for increased breast cancer risk, though the underpinning pathobiology is yet to be fully elucidated. Estrogenic activity exerts a strong influence over MD, which consequently has been observed to change predictably in response to tamoxifen anti-estrogen therapy, although results for other selective estrogen receptor modulators and aromatase inhibitors are less consistent. In both primary and secondary prevention settings, tamoxifen-associated MD changes correlate with successful modulation of risk or outcome, particularly among pre-menopausal women; an observation that supports the potential use of MD change as a surrogate marker where short-term MD changes reflect longer-term anti-estrogen efficacy...
November 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/27852186/supportive-care-of-women-with-breast-cancer-key-concerns-and-practical-solutions
#10
Nicholas Zdenkowski, Stephanie Tesson, Janine Lombard, Melanie Lovell, Sandra Hayes, Prudence A Francis, Haryana M Dhillon, Frances M Boyle
Patients diagnosed with breast cancer may have supportive care needs for many years after diagnosis. High quality multidisciplinary care can help address these needs and reduce the physical and psychological effects of breast cancer and its treatment. Ovarian suppression and extended endocrine therapy benefits are associated with vasomotor, musculoskeletal, sexual and bone density-related side effects. Aromatase inhibitor musculoskeletal syndrome is a common reason for treatment discontinuation. Treatment strategies include education, exercise, simple analgesia and a change to tamoxifen or another aromatase inhibitor...
November 21, 2016: Medical Journal of Australia
https://www.readbyqxmd.com/read/27848887/metabolism-and-toxicological-implications-of-commonly-used-chemopreventive-drugs-against-breast-cancer-carcinogenesis
#11
Aliyu Muhammad, Mohammed Auwal Ibrahim, Ochuko Lucky Erukainure, Ibrahim Malami, Hadiza Sani, Hafsat Abdullahi Mohammed
BACKGROUND: Breast cancer has been reported to be among the frequently diagnosed cancer in women worldwide despite advances in early detection and treatment. Several drugs are currently used for chemoprevention as a result of a number of drawbacks associated with breast cancer therapy. AIM: This review focuses on the metabolism and toxicological implications of these drugs against breast cancer/carcinogenesis. METHODOLOGY: Relevant articles on the commonly used anti-breast cancer drugs (raloxifene, tamoxifen, anastrozole, letrozole and exemestane) used in chemoprevention were searched using the major scientific databases including Scopus, Embase, PubMed/ Medline, Sciencedirect and Google Scholar...
November 16, 2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/27843622/review-of-hormone-based-treatments-in-postmenopausal-patients-with-advanced-breast-cancer-focusing-on-aromatase-inhibitors-and-fulvestrant
#12
REVIEW
Iben Kümler, Ann S Knoop, Christina A R Jessing, Bent Ejlertsen, Dorte L Nielsen
BACKGROUND: Endocrine therapy constitutes a central modality in the treatment of oestrogen receptor (ER)-positive advanced breast cancer. PURPOSE: To evaluate the evidence for endocrine treatment in postmenopausal patients with advanced breast cancer focusing on the aromatase inhibitors, letrozole, anastrozole, exemestane and fulvestrant. METHODS: A review was carried out using PubMed. Randomised phase II and III trials reporting on ≥100 patients were included...
2016: ESMO Open
https://www.readbyqxmd.com/read/27823654/aromatase-inhibitors-in-premenopause-great-expectations-fulfilled
#13
REVIEW
Rosalba Torrisi, Selene Rota, Agnese Losurdo, Monica Zuradelli, Giovanna Masci, Armando Santoro
Tamoxifen and GnRH analogues (GnRHa) represent the mainstay of endocrine manipulations in premenopausal women. The estrogen blockade obtained by aromatase inhibitors (AIs) plus GnRHa suppresses circulating estrogens more deeply than tamoxifen plus GnRHa. Retrospective and prospective evidence confirm a substantial activity for AIs and GnRHa in locally advanced and metastatic breast cancer. In early breast cancer inconsistent evidence emerged from 2 large randomized studies with anastrozole performing as tamoxifen in terms of DFS, but significantly worse as of OS while exemestane outperformed tamoxifen as of DFS particularly in very young and high-risk women...
November 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27817058/aromatase-inhibitor-induced-carpal-tunnel-syndrome-prevalence-in-daily-practice
#14
Labidi Soumaya, Mejri Nesrine, El Benna Houda, Afrit Mehdi, Lakhdhar Sarra, Boussen Hamouda
INTRODUCTION: We aim to evaluate prevalence and characteristics of CTS in routine daily practice over a 5-year period, with a review of the literature. METHODS: Patients treated with endocrine therapy (441) were retrospectively analyzed looking for CTS cases in aromatase inhibitors (219, 49.6%) and in tamoxifen (222, 50.3%) patients. We described patient's characteristics and CTS management. We also reviewed the literature reporting CTS in aromatase inhibitors clinical trials...
December 2016: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/27809310/downregulation-of-microrna-27b-3p-enhances-tamoxifen-resistance-in-breast-cancer-by-increasing-nr5a2-and-creb1-expression
#15
Jiang Zhu, Zhengzhi Zou, Peipei Nie, Xiaoni Kou, Baoyan Wu, Songmao Wang, Zhangjun Song, Jianjun He
Estrogen-dependent breast cancer is often treated with the aromatase inhibitors or estrogen receptor (ER) antagonists. Tamoxifen as a major ER antagonist is usually used to treat those patients with ERα-positive breast cancer. However, a majority of patients with ERα positive fail to respond to tamoxifen due to the presence of intrinsic or acquired resistance to the drug. Altered expression and functions of microRNAs (miRNAs) have been reportedly associated with tamoxifen resistance. In this study, we investigated the role of miR-27b-3p in resistance of breast cancer to tamoxifen...
November 3, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27801672/antiestrogen-use-reduces-risk-of-cervical-neoplasia-in-breast-cancer-patients-a-population-based-study
#16
Chia-Jung Hsieh, Mun-Kun Hong, Pau-Chung Chen, Jen-Hung Wang, Tang-Yuan Chu
Estrogen has been proven to be a necessity for cervical carcinogenesis by transgenic mice studies. To determine whether long-term antiestrogens use could reduce the incidence of cervical neoplasia, a population-based cohort of 42,940 breast cancer patients with and without antiestrogen therapy were identified from the Taiwan National Health Insurance Database. All patients were followed for the most severe form of cervical neoplasia or until death. Their risks of cervical neoplasia were compared with Cox regression analysis and adjusted for age, Pap smear density and chemotherapy...
October 27, 2016: Oncotarget
https://www.readbyqxmd.com/read/27785653/ovarian-suppression-in-combination-endocrine-adjuvant-therapy-in-premenopausal-women-with-early-breast-cancer
#17
REVIEW
Rowan T Chlebowski, Kathy Pan, Nananda F Col
PURPOSE: The benefits of adding ovarian suppression to either tamoxifen or aromatase inhibitors as adjuvant breast cancer therapy in premenopausal women are controversial. Therefore, we performed a systematic literature review and meta-analysis of relevant randomized trials. METHODS: We identified and combined four qualifying trials reporting disease-free survival (DFS) and overall survival (OS) using meta-analysis. RESULTS: Combining ABCSG-12, SOFT, and TEXT studies, there were 65 fewer DFS events (HR 0...
October 26, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27780311/initiation-of-and-adherence-to-tamoxifen-and-aromatase-inhibitor-therapy-among-elderly-women-with-ductal-carcinoma-in-situ
#18
Hui Zhao, Nainan Hei, Yiling Wu, Winston Chan, Xiudong Lei, Carrie Cameron, Shine Chang, Mariana Chavez-MacGregor, Sharon H Giordano
BACKGROUND: The National Surgical Adjuvant Breast and Bowel Project B35 and International Breast Cancer Intervention Studies II Ductal Carcinoma In Situ trials showed similar treatment effects of anastrozole and tamoxifen in reducing cancer recurrence risk among ductal carcinoma in situ (DCIS) patients. Studies have shown low levels of hormone therapy drug initiation for DCIS patients, but the current body of literature lacks information on the 5-year adherence rates for these drugs from population-based studies...
October 25, 2016: Cancer
https://www.readbyqxmd.com/read/27721710/memory-and-spatial-cognition-in-breast-cancer-patients-undergoing-adjuvant-endocrine-therapy
#19
Ute Berndt, Bernd Leplow, Robby Schoenfeld, Tilmann Lantzsch, Regina Grosse, Christoph Thomssen
INTRODUCTION: It is generally accepted that estrogens play a protective role in cognitive function. Therefore, it can be expected that subtotal estrogen deprivation following aromatase inhibition will alter cognitive performance. METHODS: In a cross-sectional study we investigated 80 postmenopausal women with breast cancer. Memory and spatial cognition were compared across 4 treatment groups: tamoxifen only (TAM, n = 22), aromatase inhibitor only (AI, n = 22), TAM followed by AI ('SWITCH group', n = 15), and patients with local therapy (LT) only (surgery and radiation, n = 21)...
August 2016: Breast Care
https://www.readbyqxmd.com/read/27711920/association-of-adjuvant-tamoxifen-and-aromatase-inhibitor-therapy-with-contralateral-breast-cancer-risk-among-us-women-with-breast-cancer-in-a-general-community-setting
#20
Gretchen L Gierach, Rochelle E Curtis, Ruth M Pfeiffer, Maeve Mullooly, Estelle A Ntowe, Robert N Hoover, Sarah J Nyante, Heather Spencer Feigelson, Andrew G Glass, Amy Berrington de Gonzalez
Importance: Within 10 years after breast cancer diagnosis, roughly 5% of patients develop contralateral breast cancer (CBC). Randomized trials have found that therapy including tamoxifen citrate and aromatase inhibitors (AIs) reduces CBC risk. But little is known about the magnitude and duration of protective associations within the context of real-world clinical management settings, where varying durations of and gaps in treatment are common. Objective: To determine the association between adjuvant tamoxifen and AI therapy and CBC risk within a general community setting...
October 6, 2016: JAMA Oncology
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