Aromatase Inhibitors in Postmenopausal Breast Cancer Patients

2005 ◽  
Vol 3 (3) ◽  
pp. 309-314 ◽  
Author(s):  
Alyssa G. Rieber ◽  
Richard L. Theriault

Aromatase inhibitors (AIs) have greatly enriched the treatment of hormone receptor-positive breast cancer in postmenopausal patients. Before the introduction of the well-tolerated third-generation AIs, tamoxifen was the mainstay of endocrine therapy for hormone receptor-positive breast cancer. Many clinical trials have shown the superiority of AIs compared with tamoxifen in adjuvant breast cancer treatment, as well as their benefit in metastatic breast cancer. NCCN guidelines recommendations for their use are based on the evidence provided by these clinical trials. This discussion reviews the evidence supporting the current guidelines for use of AI therapy in the treatment of hormone receptor-positive postmenopausal breast cancer patients.

2019 ◽  
Vol 9 (1) ◽  
pp. 11
Author(s):  
Reham M. Faheim ◽  
Eman A. El-Shaarawy ◽  
Dina A. Salem ◽  
Rehab G. Shaaban

Background: Aromatase inhibitors (AIs) represent an effective endocrine treatment for hormone receptor-positive postmenopausal breast cancer patients with early stage or metastatic disease.Objective: Assessment of Cardiotoxicity in Hormone positive Postmenopausal Breast Cancer Patients receiving AIs (upfront orswitch therapy).Methods: This cross sectional study included 123 postmenopausal breast cancer patients presented to the Clinical Oncology Department, Ain Shams University (Cairo, Egypt) in the interval from August 2016 to June 2017 with hormone receptor positive receiving Aromatase Inhibitors, To assess cardiotoxicity in these patients, they were subjected to blood pressure and lipid profile measurement, electrocardiography (ECG), and electrocardiography (ECHO) and classified into patients had Nolvadex then A.I (arm 1) and others had upfront A.I (arm 2).Results: The age of patients ranged from 41 years to 85 years with mean age of 61 years. Seventy one patients (57.7%) showed cardiotoxicity as assessed by ECHO. They showed significant correlation with rising age above 62 years, IHD, history of HTN and DM (p value: .001, .001, .017 and 0.035 respectively). However, correlation between cardiotoxity and blood pressure changes, lipid profile changes and ECG findings and ECHO changes in switch therapy and upfront A.I were not statistically significant (p value = .275, .116, .081 and .761 respectively).Conclusion: Assessment of cardiotoxicity in hormone positive postmenopausal breast cancer patients receiving Aromatase Inhibitors showed evidence of cardiotoxicity in half the patients (57.7%) as detected by ECHO only. They showed statistically non significant correlations either recievied switch therapy or upfront A.I.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e11554-e11554
Author(s):  
Mehmet Ali Nahit Sendur ◽  
Sercan Aksoy ◽  
Kadri Altundag

e11554 Background: In the adjuvant hormonal treatment of postmenopausal breast cancer patients, most of the trials have showed the superiority of aromatase inhibitors over tamoxifen. However, there are limited data in the literature comparing the efficacy of aromatase inhibitors in postmenopausal women. Thus, the aim of this study is to compare the efficacy of letrozole and anastrozole in hormone-receptor positive postmenopausal breast cancer patients. Methods: Newly diagnosed breast cancer patients from 2001 to 2012 in our clinic were retrospectively analyzed. A total 566 hormone receptor-positive postmenopausal breast cancer patients were analyzed. The patients were divided into two group; anastrozole group (n=235) and letrozole patients (n=331). Kaplan–Meier survival analysis was carried out for disease free survival (DFS) and overall survival (OS). The log-rank test was used to examine the statistical significance of the differences observed between the groups. Results: The mean age was 59.2±8.5 in anastrozole group, and 60.1±8.4 in letrozole arm (P = 0.19). The mean BMI was 29.4±5.1 kg/m2 and 29.3±5.3 kg/m2 of anastrozole and letrozole arm, respectively (P =0.84). The median follow-up time for this analysis was 25.1 months. The histology of the primary tumor and type of surgery was similar and not statistically significant in both groups. Also in both arms the incidence of lymphovascular invasion, perineural invasion, HER2 positivity and histological grade were similar and not statistically significant. There were no apparent differences in baseline nodal status (P = 0.43), tumor size (P = 0.58) and tumor stage (P = 0.15) between two treatment arms. In anastrozole arm DFS rate was 93.7%, 81.3% and 66.0% whereas in letrozole arm DFS rate was 90.6%, 78.7% and 68.5% in the first, third and fifth years respectively. Median OS could not be obtained due to low events in both groups. Three year survival rate in anastrozole group was 98.8%, whereas in letrozole arm was 96.7% (P=0.84). Conclusions: In this retrospective study, the efficacy of letrozole and anastrozole was similar in hormone-receptor positive postmenopausal breast cancer patients.


BMC Cancer ◽  
2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Arun Kumar Attuluri ◽  
Chandra Prakash V. Serkad ◽  
Aparna Gunda ◽  
Charusheila Ramkumar ◽  
Chetana Basavaraj ◽  
...  

2006 ◽  
Vol 24 (31) ◽  
pp. 4956-4962 ◽  
Author(s):  
Bent Ejlertsen ◽  
Henning T. Mouridsen ◽  
Maj-Britt Jensen ◽  
Nils-Olof Bengtsson ◽  
Jonas Bergh ◽  
...  

Purpose To compare the efficacy of ovarian ablation versus chemotherapy in early breast cancer patients with hormone receptor–positive disease. Patients and Methods We conducted an open, randomized, multicenter trial including premenopausal breast cancer patients with hormone receptor–positive tumors and either axillary lymph node metastases or tumors with a size of 5 cm or more. Patients were randomly assigned to ovarian ablation by irradiation or to nine courses of chemotherapy with intravenous cyclophosphamide, methotrexate, and fluorouracil (CMF) administered every 3 weeks. Results Between 1990 and May 1998, 762 patients were randomly assigned, and the present analysis is based on 358 first events. After a median follow-up time of 8.5 years, the unadjusted hazard ratio for disease-free survival in the ovarian ablation group compared with the CMF group was 0.99 (95% CI, 0.81 to 1.22). After a median follow-up time of 10.5 years, overall survival (OS) was similar in the two groups, with a hazard ratio of 1.11 (95% CI, 0.88 to 1.42) for the ovarian ablation group compared with the CMF group. Conclusion In this study, ablation of ovarian function in premenopausal women with hormone receptor–positive breast cancer had a similar effect to CMF on disease-free and OS. No significant interactions were demonstrated between treatment modality and hormone receptor content, age, or any of the well-known prognostic factors.


2019 ◽  
Vol 25 (1) ◽  
pp. 9-15
Author(s):  
Takeshi Murata ◽  
Hiromitsu Jinno ◽  
Maiko Takahashi ◽  
Masayuki Shimoda ◽  
Tetsu Hayashida ◽  
...  

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