Relation of estrogen and/or progesterone receptor content of breast cancer to patient outcome following adjuvant chemotherapy (original) (raw)
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Cancer, 1988
estrogen receptor (ER) and progesterone receptor (PR) levels were measured in 645 tumors from women with primary, unilateral, nonmetastatic breast cancer. All of them were treated surgically. Some received adjuvant radiotherapy, adjuvant chemotherapy, or adjuvant hormonotherapy. A level of >5 fmol/mg cytosolic protein was considered as positive for both ER and PR. Unifactorial analysis, using Kaplan and Meier estimates and the log-rank test, revealed that diseasefree survival (DFS) and overall survival (SV) were both strongly related to age, tumor size, nodal status, nodal effraction, histopathologic grading (SBR), ER, and PR. Menopausal status and number of intramammary tumor foci were not significant. Multifactorial analysis, using Cox's model, revealed a strong relationship between SV and age (poor prognosis [pp]: 537 years old), menopausal status (pp: postmenopausal), tumor size, nodal status (pp: N+ > 3), nodal effraction, ER (pp: 1 5 fmol/mg), histopathologic grading (pp: SBR = 3), and PR (pp: 4 fmol/mg). Similarly, multifactorial analysis revealed a strong correlation between DFS and age, tumor size, nodal status, nodal effraction, histopathologic grading, and PR. A prognostic score taking into account these prognostic factors was calculated for DFS and SV. Analysis of this score allowed us to divide our patients into four significantly different (P < 0.0001) groups with high, intermediate, and low risk of relapse. Our procedure was then validated using the sample test technique. These results show that both ER and PR have their own prognostic weight and should be considered, among other classic prognostic factors, when adjuvant therapies are indicated after surgical treatment of breast cancer.
Journal of Surgical Research, 2020
Introduction: Trials demonstrate equivalent survival for breast cancers treated with neoadjuvant (NAC) or adjuvant chemotherapy (AC). However, these were conducted prior to the recognition of the importance of receptor subtype for survival and chemotherapy response. Therefore, chemotherapy timing may impact survival for certain receptor subtypes. A scoping review of studies assessing outcomes by chemotherapy timing based on receptor subtype was conducted to evaluate gaps in existing literature. Methods: Three databases were searched in February 2019 with terms related to breast cancer, NAC/AC, and survival. Inclusion criteria were original, peer-reviewed studies published in English after 1989 comparing breast cancer outcomes for females based on chemotherapy timing. Studies/ sections of studies lacking outcomes by receptor subtype or including patients missing appropriate targeted therapy were excluded. Results: Of 7,354 articles, 262 abstracts and 60 full-texts were reviewed. Three studies met criteria. All were single-institution retrospective studies analyzing outcomes for triple negative (TN) patients with one study also examining luminal A patients. Significant differences in clinical characteristics existed between patients selected for NAC vs AC. Two studies demonstrated no
Hormone receptor-positive early breast cancer: controversies in the use of adjuvant chemotherapy
Endocrine Related Cancer, 2009
Current adjuvant treatments for operable breast cancer include chemotherapy, endocrine therapy in hormone receptor-positive tumors, and trastuzumab for HER2-positive tumors. Metanalyses of randomized trials show that in patients with hormone receptor-positive breast cancer, the effects of endocrine therapy and chemotherapy on survival are non-mutually exclusive. Most of these patients are therefore considered candidates to combined treatment. Recently, however, the endocrine responsiveness of tumors has been redefined on clinical, histopathological, and molecular bases. An emerging concept is that as endocrine responsiveness increases, chemoresponsiveness decreases. In the adjuvant setting, therapeutic choices are often based on small projected improvements in clinical outcomes. As a consequence, the role of chemotherapy and traditional management algorithms in patients with hormone receptor positive is being challenged. This review will address the current controversy regarding the...
Journal of clinical oncology : official journal of the American Society of Clinical Oncology, 1983
In 1977 the National Surgical Adjuvant Breast and Bowel Project initiated a prospectively randomized clinical trial for women with primary operable breast cancer and positive axillary nodes. In this study 1891 patients were randomized to receive L-phenylalanine mustard and 5-fluorouracil (PF) either with or without tamoxifen (T). In this interim report findings are presented concerning disease-free survival (DFS) and survival as related to age and to estrogen receptor (ER) and/or progesterone receptor (PR) content of the tumor. The median follow-up time is 3 yr. Patients 50 yr of age or older with either 1-3 or more than 3 positive axillary nodes had a markedly longer disease-free survival on PFT than did those receiving PF adjuvant therapy (p less than 0.001). The effectiveness of PFT was related to the levels of tumor receptors. Patients 50 yr old or more with both tumor ER and PR levels of 10 fmole or more ("high") displayed the greatest benefit in disease-free survival...
Cancer Epidemiology, 2017
Background: The benefit of adjuvant chemotherapy in women with T1N0M0 breast cancers is unclear. While gene expression-based prognostic assays may aid management of women with early estrogen receptor (ER) positive tumors, therapeutic decision-making in women with early stage ER negative tumors remains fraught with difficulties. We investigated the association between adjuvant chemotherapy and overall survival in women with T1N0M0, hormone receptor negative breast cancers. Method: All newly diagnosed breast cancer patients with node-negative and hormone receptor negative tumors measuring 2 cm at the University Malaya Medical Centre (Malaysia) from 1993 to 2013 were included. Mortality of patients with and without adjuvant chemotherapy were compared and adjusted for possible confounders using propensity score. Results: Of 6732 breast cancer patients, 341 (5.1%) had small (2 cm), node-negative and hormone receptor negative tumors at diagnosis. Among them, only 214 (62.8%) received adjuvant chemotherapy. Five-year overall survival was 88.1% (95% confidence interval (CI): 82.0%-94.2%) for patients receiving chemotherapy and 89.6% (95% CI: 85.1%-94.1%) for patients without chemotherapy. Chemotherapy was not associated with survival following adjustment for age, ethnicity, tumor size, tumor grade, HER2 status, lympho-vascular invasion, type of surgery and radiotherapy administration. However, chemotherapy was associated with a significant survival advantage (adjusted hazard ratio: 0.35, 95% CI: 0.14-0.91) in a subgroup of women with high-grade tumors. Conclusion: Adjuvant chemotherapy does not appear to be associated with a survival benefit in women with T1N0M0, hormone receptor negative breast cancer except in those with high-grade tumors.
Prognostic Value of Receptor Change After Neoadjuvant Chemotherapy in Breast Cancer Patients
European Journal of Breast Health
Points • Neoadjuvant chemotherapy might change the status of breast cancer biomarkers, including estrogen receptor (ER), progesterone receptor (PR), and HER-2. • Receptor status change, the ER (+) → (−) and PR (+) → (−) patients had significantly shorter overall survival. • There was no statistical relationship between the change of Ki-67 level and survival.
npj Breast Cancer, 2021
Although 1% is the recommended cut-off to define estrogen receptor (ER) positivity, a 10% cut-off is often used in clinical practice for therapeutic purposes. We here evaluate clinical outcomes according to ER levels in a monoinstitutional cohort of non-metastatic triple-negative breast cancer (BC) patients undergoing (neo)adjuvant chemotherapy. Clinicopathological data of 406 patients with ER < 10% HER2-negative BC treated with (neo)adjuvant chemotherapy between 01/2000 and 04/2019 were collected. Patients were categorized in ER-negative (ER < 1%; N = 364) and ER-low positive (1–9%, N = 42). At a median follow-up of 54 months, 88 patients had relapsed and 64 died. No significant difference was observed in invasive relapse-free survival (iRFS) and overall survival (OS) according to ER expression levels, both at univariate and multivariate analysis (5-years iRFS 74.0% versus 73.1% for ER-negative and ER-low positive BC, respectively, p = 0.6; 5-years OS 82.3% versus 76.7% for E...
British journal of cancer, 2009
To evaluate the impact of change in the hormone receptor (HR) status (HR status conversion) on the long-term outcomes of breast cancer patients treated with neoadjuvant chemotherapy (NAC). We investigated 368 patients for the HR status of their lesions before and after NAC. On the basis of the HR status and the use/non-use of endocrine therapy (ET), the patients were categorised into four groups: Group A, 184 ET-administered patients with HR-positive both before and after NAC; Group B, 47 ET-administered patients with HR status conversion; Group C, 12 ET-naive patients with HR status conversion; Group D, 125 patients with HR-negative both before and after NAC. Disease-free survival in Group B was similar to that in Group A (hazard ratio, 1.16; P=0.652), but that in Group C was significantly lesser than that in Group A (hazard ratio, 6.88; P<0.001). A similar pattern of results was obtained for overall survival. Our results indicate that the HR status of tumours is a predictive fa...