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.

scholarly journals Practical consensus recommendations on duration of adjuvant hormonal therapy in breast cancer

2018 ◽  
Vol 07 (02) ◽  
pp. 142-145 ◽  
Author(s):  
S. Gupta ◽  
M. Singh ◽  
Amish Vora ◽  
G. Babu ◽  
M. Walia ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Hormonal Therapy ◽  
Hormone Receptor ◽  
Early Stage ◽  
Adjuvant Hormonal Therapy ◽  
Breast Cancer Patients ◽  
Term Survival ◽  
Consensus Recommendations ◽  
Hormone Receptor Positive

AbstractOptimization of adjuvant systemic therapy in women with early-stage hormone receptor-positive breast cancer includes the consideration of chemotherapy and duration of hormone therapy. Adjuvant hormonal therapy significantly improves long-term survival of breast cancer patients with hormone receptor-positive disease. Despite the proven clinical efficacy of tamoxifen and aromatase inhibitors, many breast cancer survivors either fail to take the correct dosage at the prescribed frequency (adherence) or discontinue therapy (persistence). Expert oncologist discussed on the duration of adjuvant hormonal therapy for improvement of OS and quality of life of breast cancer patients by providing reduction in recurrence and mortality. This expert group used data from published literature, practical experience and opinion of a large group of academic oncologists to arrive at this practical consensus recommendations for the benefit of community oncologists.

Cognitive effects of hormonal therapy in early stage breast cancer patients: a prospective study

2009 ◽  
Vol 18 (8) ◽  
pp. 811-821 ◽  
Author(s):  
Barbara Collins ◽  
Joyce Mackenzie ◽  
Angela Stewart ◽  
Catherine Bielajew ◽  
Shailendra Verma
Keyword(s):  
Breast Cancer ◽  
Prospective Study ◽  
Cancer Patients ◽  
Hormonal Therapy ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Cognitive Effects ◽  
Breast Cancer Patients ◽  
A Prospective Study

scholarly journals Adherence and Persistence to Adjuvant Hormonal Therapy in Early-Stage Breast Cancer Patients: A Population-Based Retrospective Cohort Study in Israel

Breast Care ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 45-54
Author(s):  
Tal Sella ◽  
Gabriel Chodick
Keyword(s):  
Breast Cancer ◽  
Hormonal Therapy ◽  
Breast Cancer Survivors ◽  
Proportional Hazards ◽  
Early Stage ◽  
Cox Proportional Hazards ◽  
Adjuvant Hormonal Therapy ◽  
Breast Cancer Patients ◽  
Early Discontinuation ◽  
Increased Risk

Background: Adjuvant hormonal therapy (HT) has been consistently proven to improve multiple outcomes in early breast cancer yet rates of adherence and persistence are variable. Methods: We retrospectively identified women diagnosed with nonmetastatic breast cancer and initiating HT between January 2000 and December 2007 in a large Israeli health provider. Prescription records including the drug name, date of purchase, and the quantity of pills dispensed were collected. We used Cox proportional hazards and binary logistic models to analyze factors associated with early discontinuation (<5 years) and nonadherence (proportion of days covered, PDC <80%) of HT, respectively. Results: A total of 4,178 women with breast cancer were identified with nearly 95% of patients treated with tamoxifen as the initial HT. Over the 5-year follow-up period, early discontinuation was identified in 955 (23%) patients. The mean PDC was 82.9% (SD 0.004). Younger age and low BMI were both associated with an increased risk of early discontinuation and nonadherence. A history of hypertension was associated with a higher likelihood of both outcomes. Conclusion: Adherence and persistence with HT among Israeli breast cancer survivors are comparable to those in international reports. Interventions are necessary to identify and prevent suboptimal HT adherence.

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.

Sign in / Sign up

Export Citation Format

Share Document