Explanation model using pathological data for treatment outcome of patients with early-stage breast cancer with hormonal receptor (HR)-positive and human epidermal growth factor receptor 2 (HER2)-negative.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12006-e12006
Author(s):  
Naiyarat Prasongsook
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Cancer Patients ◽  
Adjuvant Treatment ◽  
Hormonal Therapy ◽  
Tumor Size ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Breast Cancer Patients ◽  
Ki 67

e12006 Background: The decision to initiate adjuvant chemotherapy for early-stage breast cancer patients with HR+ and HER2- is still unclear. Although the 21-gene Recurrence Score (RS) assay is a validated testing and becomes an emerging decision-making tool; it is still controversial guidance on adding adjuvant chemotherapy for patients with intermediate RS. This study aimed to develop the explanation model by using pathological information for prediction of the best outcome from adjuvant systemic treatment in these patients.Methods: Early-stage breast cancer patients with HR+, and HER2- who underwent complete resection registered within electronic medical record from 2003 to 2013 were included. Patient’s characteristics and pathological information were collected and analyzed. Univariate and multivariate analysis were conducted by using stepwise logistic regression. The explanation model was explored by using association between multivariate models and overall survival (OS).Results: 236 patients who underwent complete surgery treatment were included. 121 patients (51%) were treated with sequential adjuvant treatment, and 115 patients (48%) with anti-hormonal therapy alone. Clinicopathological parameters between two groups were demonstrated in Table1. Tumor size (≥2 – 5 cm), Estrogen receptor-negative/ Progesterone receptor-positive (ER-/PgR+), and Ki-67 expression were statistically significant multivariate independent prognostic factors for OS. When we adjusted for tumor size, HR status, and Ki-67 expression, the explanation model predicted 10-year OS was 99.2% for patients with sequential adjuvant treatment, whereas 89.5% for patients with adjuvant anti-hormonal alone (difference: 9.7%); p-value = 0.01.Conclusions: We found substantial discordance in 10-year OS benefit between early-breast cancer patients with HR+, HER2- with sequential adjuvant therapy and adjuvant hormonal therapy alone. Adjuvant chemotherapy should be considered in early-breast cancer patients with 2-3 cm in tumor size, ER-/PgR+, and Ki 67 expression.

scholarly journals Adherence and persistence to adjuvant hormonal therapy in early stage breast cancer patients: A population-based retrospective cohort study in Israel.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e12051-e12051
Author(s):  
Tal Sella ◽  
Gabriel Chodick
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Hormonal Therapy ◽  
Breast Cancer Survivors ◽  
Early Stage ◽  
Population Based ◽  
Early Stage Breast Cancer ◽  
Adjuvant Hormonal Therapy ◽  
Breast Cancer Patients ◽  
Suboptimal Adherence

e12051 Background: Adjuvant hormonal therapy has been consistently proven to improve multiple outcomes in early breast cancer. Nonetheless, data on rates of adherence and persistence with therapy outside West Europe and North America are scarce. We assessed the adherence and persistence with adjuvant hormonal in a retrospective population based cohort of breast cancer survivors in Maccabi Health Services (MHS), Israel. Methods: We identified women who were diagnosed with breast cancer and initiated adjuvant hormonal therapy between January 2000 and November 2008. Subjects were followed retrospectively from first dispensed tamoxifen or aromatase inhibitor (AI) and up to the earliest of the following events: disease recurrence (indicated by surgery, radiotherapy, chemotherapy or other related therapies), leaving MHS, death, or completion of 5 years of treatment. Discontinuation of therapy was defined as a 180-day or longer treatment gap. Adherence with therapy was assessed using proportion of days covered (PDC) during follow-up period. Survival analysis was used to determine the effect of adherence on all-cause mortality. Results: A total of 4178 women with breast cancer were followed for a median 7.8 years. Over 90% of patients received tamoxifen as the initial hormonal agent. Mean PDC was 84% with lower rates associated with younger age, smoking status, comorbidities and year of diagnosis. Residential area did not affect adherence. Differences were not found. Discontinuation of therapy occurred in 23% of study patients. Among persistent patients, 70% were optimally adherent with therapy (PDC>=80%). Association between adherence with therapy and survival is investigated. Conclusions: Adherence to adjuvant hormonal therapy among Israeli breast cancer patients with national health insurance is high in comparison to international reports. Nevertheless, suboptimal adherence was identified among younger (<45y) patients. Because of the efficacy of hormonal therapy in preventing recurrence and death in women with early-stage breast cancer, interventions are necessary to identify and prevent suboptimal adherence among high risk subgroups.

c-erb B2 overexpression decreases the benefit of adjuvant tamoxifen in early-stage breast cancer without axillary lymph node metastases.

1996 ◽  
Vol 14 (10) ◽  
pp. 2702-2708 ◽  
Author(s):  
C Carlomagno ◽  
F Perrone ◽  
C Gallo ◽  
M De Laurentiis ◽  
R Lauria ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Tumor Size ◽  
Early Stage ◽  
Cox Model ◽  
Early Stage Breast Cancer ◽  
Adjuvant Tamoxifen ◽  
Independent Effect ◽  
Axillary Lymph ◽  
Breast Cancer Patients

PURPOSE We studied retrospectively the interaction between c-erbB2 overexpression and adjuvant tomoxifen in node-negative breast cancer patients enrolled in the Gruppo Universitario Napoletano 1 (GUN-1) trial. PATIENTS AND METHODS c-erbB2, evaluated by immunohistochemistry in 145 of 173 patients randomly assigned to 2-year adjuvant tamoxifen or no further therapy, was considered overexpressed if greater than 10% of the cells showed specific membrane staining. The role of each prognostic variable and their independent effect were studied using the Cox model. Disease-free (DFS) and overall (OAS) survival curves were estimated by the Kaplan-Meier method. RESULTS As of November 30, 1994, the median follow-up period was 12 years. c-erbB2 was overexpressed in 43 of 145 patients (29.7%), which directly correlated with tumor size and inversely with estrogen receptor (ER) level. At univariate analysis, overexpression of c-erbB2 did not affect either DFS or OAS; tamoxifen had a greater effect on reducing the risk of recurrence than of death. Addition of c-erbB2 to a multivariate Cox model that contained menopausal status, tumor size, nuclear grade, and treatment as covariates did not affect the significance of the model for DSF or OAS, whereas addition of the first-order interaction between c-erbB2 and tamoxifen was statistically significant both for DFS and OAS. The same result was obtained when the model contained ER status and ER-tamoxifen interaction. Indeed, adjuvant tamoxifen significantly prolonged DFS and OAS in c-erbB2-negative cases, whereas it had no effect on DFS and OAS in c-erbB2-positive patients. CONCLUSION In early-stage breast cancer patients, overexpression of c-erbB2 is a marker of lack of efficacy of adjuvant tamoxifen.

Cardiovascular risk profile of breast cancer patients treated with anthracycline-taxane containing adjuvant chemotherapy and/or trastuzumab

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 666-666 ◽  
Author(s):  
L. W. Jones ◽  
M. Haykowsky ◽  
C. J. Peddle ◽  
A. A. Joy ◽  
E. N. Pituskin ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Adjuvant Chemotherapy ◽  
Cancer Patients ◽  
Sinus Tachycardia ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Breast Cancer Patients ◽  
Cvd Risk Factors ◽  
Cvd Risk

666 Background: With improving longevity, post-treatment cardiovascular disorders will become an increasingly important indicator of competing mortality in early-stage breast cancer. As such, we conducted a pilot study to comprehensively evaluate the CVD profile of a subset of early-stage breast cancer patients treated with adjuvant taxane-anthracycline containing chemotherapy and/or trastuzumab. Methods: Twenty-six breast cancer patients (mean 20 months post chemotherapy) who participated in Breast Cancer International Research Group 006 clinical trial and 10 healthy age-matched women were studied. We measured 14 metabolic and vascular established CVD risk factors, BMI, VO2peak and left ventricular systolic function. All assessments were performed within a 14-day period. Results: Cardiac abnormalities were suggested by LVEF <50% in 10% of patients, LVEF remained >10% below pre-treatment values in 38% while 50% presented with resting sinus tachycardia. BNP was significantly elevated in 40% and was correlated with LVEF (r = -0.72, p=<.001). For the majority of CVD risk factors, similar proportions of patients and controls (35% to 60%) were classified as ‘undesirable.’ A significantly higher proportion of patients were classified with low VO2peak (46% vs. 0%, p<0.01), being overweight/obese (72% vs. 50%, p<0.05), and having resting sinus tachycardia (50% vs. 0%, p<0.01) compared with controls. VO2peak and BMI were correlated with CV risk factors (r = -0.64 to 0.63, p<0.05; r = -0.63 to 0.67, p<0.05, respectively). Exploratory analyses revealed several differences between CVD risk factors based on chemotherapy regimen. Conclusions: Breast cancer survivors treated with adjuvant chemotherapy are at a higher risk of developing late-occurring CVD than age matched controls due to direct and indirect treatment-related toxicity. No significant financial relationships to disclose.

scholarly journals Evaluation of the prognostic value of CD3, CD8, and FOXP3 mRNA expression in early-stage breast cancer patients treated with anthracycline-based adjuvant chemotherapy

2018 ◽  
Vol 7 (10) ◽  
pp. 5066-5082 ◽  
Author(s):  
Marinos Tsiatas ◽  
Konstantine T. Kalogeras ◽  
Kyriaki Manousou ◽  
Ralph M. Wirtz ◽  
Helen Gogas ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Mrna Expression ◽  
Cancer Patients ◽  
Prognostic Value ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Breast Cancer Patients ◽  
Foxp3 Mrna

Influences on Oncologists’ Adoption of New Agents in Adjuvant Chemotherapy of Breast Cancer

2001 ◽  
Vol 19 (4) ◽  
pp. 954-959 ◽  
Author(s):  
Gina M. Buban ◽  
Brian K. Link ◽  
William R. Doucette
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Cancer Patients ◽  
Early Stage ◽  
Social Systems ◽  
Communication Channels ◽  
Early Stage Breast Cancer ◽  
Phase Iii ◽  
Breast Cancer Patients ◽  
New Treatments

PURPOSE: Little is known about how oncologists’ adopt new treatments for breast cancer. This study investigated influences on oncologists’ adoption of paclitaxel as adjuvant chemotherapy for early-stage breast cancer, 9 months after presentation of phase III data suggesting improved disease-free and overall survival when paclitaxel was added to doxorubicin and cyclophosphamide for such patients. METHODS: Self-reported data were collected with a mail survey of a random sample of 1,200 oncologists practicing in the United States. Using Rogers’ model, we measured four types of influences on adoption of innovation: (1) communication channels, (2) innovation characteristics, (3) a practitioner’s social system, and (4) physician characteristics. Multiple regression analysis assessed the associations between oncologist adoption of paclitaxel for early-stage breast cancer patients and variables representing the modeled influences on adoption. RESULTS: On average, respondents (n = 181) reported having adopted paclitaxel for 37% of their early-stage breast cancer patients. The overall model was significant, with seven variables associated (P ≤ .05) with adoption of paclitaxel. Significant influences on adoption included use of symposia as a therapy information source, physician experience with paclitaxel to treat late-stage breast cancer, and perceived advantage in efficacy of paclitaxel. CONCLUSION: As new modalities become available to treat cancer, it is vital to understand what factors influence oncologists and patients when choosing to use them. Those parties interested in fostering the adoption of new breast cancer treatments should address features of communication channels (eg, use of symposia), characteristics of new treatments (eg, perceived advantage in efficacy), physicians’ social systems (eg, patient requests), and characteristics of potential adopters (eg, previous experience with the treatment).

Sign in / Sign up

Export Citation Format

Share Document