scholarly journals Improving Mammography Rates Among the Hispanic Population: An Evidence-Based Project Utilizing a Promotora Intervention

2021 ◽  
Author(s):  
◽  
Dawn Mirowski
Keyword(s):  
Breast Cancer ◽  
Early Stage ◽  
Hispanic Women ◽  
Effective Means ◽  
Breast Cancer Mortality ◽  
Hispanic Population ◽  
Practice Problem ◽  
Clinically Significant ◽  
The Cost ◽  
Improve Health

Practice Problem: Breast cancer is the leading cause of death in Hispanic women in the U.S., with mammography being the most effective means of reducing breast cancer mortality. Promotoras have been shown to improve health promotion, including mammography, among the Hispanic population. PICOT: The PICOT question that guided this project was: In Hispanic women 40 years or older (P), how does the use of a promotora intervention (I), compared to no promotora intervention (C), affect mammography rates (O) within an 8-week period (T)? Evidence: Twenty-one studies that met the inclusion criteria supported the use of promotoras to improve mammography rates. Interventions included education and counseling, navigation assistance, providing a link to resources, and facilitating interaction with providers. Intervention: A promotora was assigned to contact patients with a mammogram order to provide education, counseling, and other assistance needed. Outcome: The intervention improved compliance with mammography rates by 37% over baseline. The results are clinically significant as the cost of the promotora intervention is minimal compared to the benefits of an early-stage diagnosis. Conclusion: The implementation of this project was consistent with the research evidence supporting a promotora intervention to improve mammography rates in the Hispanic population.

Endocrine Resistance: What Do We Know?

2013 ◽  
pp. e37-e42 ◽  
Author(s):  
Todd W. Miller
Keyword(s):  
Breast Cancer ◽  
Growth Factor ◽  
Tyrosine Kinases ◽  
De Novo ◽  
Early Stage ◽  
Effective Means ◽  
Endocrine Resistance ◽  
Large Body ◽  
Growth Factor Receptor ◽  
Oncogenic Signaling

Adjuvant therapy with antiestrogens targeting estrogen receptor α (ER) signaling prevents disease recurrence in many patients with early-stage ER+ breast cancer. However, a significant number of cases exhibit de novo or acquired endocrine resistance. While other clinical subtypes of breast cancer (HER2+, triple-negative) have disproportionately higher rates of mortality, ER+ breast cancer is responsible for at least as many deaths because it is the most common subtype. Therefore, identifying mechanisms that drive endocrine resistance is a high clinical priority. A large body of experimental evidence indicates that oncogenic signaling pathways underlie endocrine resistance, including growth factor receptor tyrosine kinases (HER2, epidermal growth factor receptor [EGFR], fibroblast growth factor receptor 1/2 [FGFR], insulin-like growth factor-1 receptor [IGF-1R]/ insulin receptor [InsR]), PI3K/AKT/ mTOR, MAPK/ERK, Src, CDK4/CDK6, and ER itself. Combined targeting of ER and such pathways may be the most effective means to combat antiestrogen resistance, and clinical trials testing such strategies show promising results. Herein, we discuss pathways associated with endocrine resistance, biomarkers that may be useful to predict response to targeted agents, and avenues for further exploration to identify strategies for the treatment of patients with endocrine-resistant disease.

Advanced Imaging Techniques for the Detection of Breast Cancer

2012 ◽  
pp. 65-69 ◽  
Author(s):  
Maxine Jochelson
Keyword(s):  
Breast Cancer ◽  
High Risk ◽  
Breast Imaging ◽  
Early Stage ◽  
Imaging Techniques ◽  
Breast Cancer Mortality ◽  
Digital Breast Tomosynthesis ◽  
Ct Scanning ◽  
High Risk Women ◽  
Contrast Enhanced

Overview: Mammography is the only breast imaging examination that has been shown to reduce breast cancer mortality. Population-based sensitivity is 75% to 80%, but sensitivity in high-risk women with dense breasts is only in the range of 50%. Breast ultrasound and contrast-enhanced breast magnetic resonance imaging (MRI) have become additional standard modalities used in the diagnosis of breast cancer. In high-risk women, ultrasound is known to detect approximately four additional cancers per 1,000 women. MRI is exquisitely sensitive for the detection of breast cancer. In high-risk women, it finds an additional four to five cancers per 100 women. However, both ultrasound and MRI are also known to lead to a large number of additional benign biopsies and short-term follow-up examinations. Many new breast imaging tools have improved and are being developed to improve on our current ability to diagnose early-stage breast cancer. These can be divided into two groups. The first group is those that are advances in current techniques, which include digital breast tomosynthesis and contrast-enhanced mammography and ultrasound with elastography or microbubbles. The other group includes new breast imaging platforms such as breast computed tomography (CT) scanning and radionuclide breast imaging. These are exciting advances. However, in this era of cost and radiation containment, it is imperative to look at all of them objectively to see which will provide clinically relevant additional information.

scholarly journals Clinical Significance of ARID1A and ANXA1 in HER-2 Positive Breast Cancer

2020 ◽  
Vol 9 (12) ◽  
pp. 3911
Author(s):  
Rita Silva-Oliveira ◽  
Filipa Ferreira Pereira ◽  
Sara Petronilho ◽  
Ana Teresa Martins ◽  
Ana Lameirinhas ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Patients ◽  
Early Stage ◽  
Breast Cancer Mortality ◽  
Inverse Association ◽  
Patient Stratification ◽  
Breast Cancer Patients ◽  
Trastuzumab Resistance ◽  
Luminal B ◽  
Her 2

Background: trastuzumab is considered the standard of care for human epidermal growth factor receptor-2 (HER-2+) breast cancer patients. Regardless of the benefits of its use, many early-stage patients eventually recur, and usually, the disease progresses within a year. Since about half of the HER-2+ patients do not respond to trastuzumab, new biomarkers of prognosis and prediction are warranted to allow a better patient stratification. Annexin A1 (ANXA1) was previously reported to contribute to trastuzumab resistance through AKT activation. An association between adenine thymine-rich interactive domain 1A (ARID1A) loss and ANXA1 upregulation was also previously suggested by others. Methods: in this study, we examined tissue samples from 215 HER-2+ breast cancer patients to investigate the value of ARID1A and ANXA1 protein levels in trastuzumab response prediction and patient outcome. Expression of ARID1A and ANXA1 were assessed by immunohistochemistry. Results: contrary to what was expected, no inverse association was found between ARID1A and ANXA1 expression. HER-2+ (non-luminal) tumours displayed higher ANXA1 expression than luminal B-like (HER-2+) tumours. Concerning trastuzumab resistance, ARID1A and ANXA1 proteins did not demonstrate predictive value as biomarkers. Nevertheless, an association was depicted between ANXA1 expression and breast cancer mortality and relapse. Conclusions: overall, our results suggest that ANXA1 may be a useful prognostic marker in HER-2+ patients. Additionally, its ability to discriminate between HER-2+ (non-luminal) and luminal B-like (HER-2+) patients might assist in patient stratification regarding treatment strategy.

Modeling the cost-effectiveness of granulocyte colony-stimulating factor use in early-stage breast cancer.

1998 ◽  
Vol 16 (7) ◽  
pp. 2435-2444 ◽  
Author(s):  
J H Silber ◽  
M Fridman ◽  
A Shpilsky ◽  
O Even-Shoshan ◽  
D S Smink ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cost Effectiveness ◽  
Response Curve ◽  
Early Stage ◽  
Early Stage Breast Cancer ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Breast Cancer Patients ◽  
The Cost ◽  
Stimulating Factor

PURPOSE To model the cost-effectiveness (CE) of granulocyte colony-stimulating factor (G-CSF) in early-stage breast cancer when its use is directed to those most in need of the medication. METHODS A conditional CE model was developed for the use of G-CSF based on a ranking of patient need as determined by patient blood counts during the first cycle of chemotherapy. In the base case, no G-CSF was used. In the alternative case, G-CSF was used in the following manner. If the risk of a neutropenic event (as defined by a predictive model based on nadir absolute neutrophil count [ANC] and hemoglobin decrease in cycle 1) was equal to or exceeded a predetermined critical value "T," then patients would receive G-CSF in cycles 2 through 6 of chemotherapy. If the risk of an event was less than T, patients would not use G-CSF unless an event occurred, at which time G-CSF would be administered with every subsequent cycle. RESULTS A decision rule (T) that would allow the most needy 50% of early-stage breast cancer patients to receive G-CSF after the first cycle of chemotherapy resulted in a CE ratio of $34,297 dollars per life-year saved (LYS). If only the most needy 10% of patients received G-CSF, then the associated CE ratio was $23,748/LYS; if 90% of patients could receive the medication, the CE ratio would be $76,487/LYS. These estimates were relatively insensitive to inpatient hospital cost estimates (inpatient costs for fever and neutropenia of $3,090 to $7,726 per admission produced dollar per LYS figures of $34,297 to $32,415, respectively). However, the model was sensitive to assumptions about the shape of the relationship between dose reduction and disease-free survival (DFS) at 3 years. CONCLUSION Providing G-CSF to the neediest 50% of early-stage breast cancer patients (as defined by first-cycle blood counts) starting after the first cycle of chemotherapy is associated with a CE ratio of $34,297/LYS, which is well in the range of CE ratios for treatment of other common medical conditions. Furthermore, conditional CE studies, based on predictive models that incorporate individual patient risk, allow one to define populations for which therapy is, or is not, cost-effective. Limitations of our present understanding of the shape of the chemotherapy dose-response curve, especially at low levels of dose reductions, affect these results. Further work is required to define the shape of the dose-response curve in early-stage breast cancer.

scholarly journals Simulation of Chemotherapy Effects in Older Breast Cancer Patients With High Recurrence Scores

2019 ◽  
Vol 112 (6) ◽  
pp. 574-581 ◽  
Author(s):  
Young Chandler ◽  
Jinani C Jayasekera ◽  
Clyde B Schechter ◽  
Claudine Isaacs ◽  
Christopher J Cadham ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Endocrine Therapy ◽  
Expression Profile ◽  
Early Stage ◽  
Breast Cancer Mortality ◽  
Sensitivity Analyses ◽  
Absolute Difference ◽  
Breast Cancer Patients ◽  
Genomic Expression ◽  
Life Years

Abstract Background Tumor genomic expression profile data are used to guide chemotherapy choice, but there are gaps in evidence for women aged 65 years and older. We estimate chemotherapy effects by age and comorbidity level among women with early-stage, hormone receptor–positive, human epidermal growth factor receptor 2 (HER2)–negative breast cancers and Oncotype DX scores of 26 or higher. Methods A discrete-time stochastic state transition simulation model synthesized data from population studies and clinical trials to estimate outcomes over a 25-year horizon for subgroups based on age (65–69, 70–74, 75–79, and 80–89 years) and comorbidity levels (no or low, moderate, severe). Outcomes were discounted at 3%, and included quality-adjusted life-years (QALYs), life-years, and breast cancer and other-cause mortality with chemoendocrine vs endocrine therapy. Sensitivity analysis tested the effect of varying uncertain parameters. Results Women aged 65–69 years with no or low comorbidity gained 0.16 QALYs with chemo-endocrine and reduced breast cancer mortality from 34.8% to 29.7%, for an absolute difference of 5.1%; this benefit was associated with a 12.8% rate of grade 3–4 toxicity. Women aged 65–69 years with no or low or moderate comorbidity levels, and women aged 70–74 years with no or low comorbidity had small chemotherapy benefits. All women aged 75 years and older experienced net losses in QALYs with chemo-endocrine therapy. The results were robust in sensitivity analyses. Chemotherapy had greater benefits as treatment effectiveness increased, but toxicity reduced the QALYs gained. Conclusion Among women aged 65–89 years whose tumors indicate a high recurrence risk, only those aged 65–74 years with no or low or moderate comorbidity have small benefits from adding chemotherapy to endocrine therapy. Genomic expression profile testing (and chemotherapy use) should be reserved for women aged younger than 75 years without severe comorbidity.

scholarly journals The use of paclitaxel in the management of early stage breast cancer

2009 ◽  
Vol 13 (Suppl 1) ◽  
pp. 15-22
Author(s):  
S Griffin ◽  
G Dunn ◽  
S Palmer ◽  
K Macfarlane ◽  
S Brent ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cost Effectiveness ◽  
Early Stage ◽  
Health Benefit ◽  
Disease Free Survival ◽  
Early Stage Breast Cancer ◽  
Single Technology Appraisal ◽  
Life Years ◽  
The Uk ◽  
The Cost

This paper presents a summary of the evidence review group (ERG) report into the clinical and cost-effectiveness of paclitaxel in the management of early stage breast cancer based upon the manufacturer’s submission to the National Institute for Health and Clinical Excellence (NICE) as part of the single technology appraisal (STA) process. The scope was not clearly defined in the manufacturer’s submission. Two of the three clinical trials included in the submission report showed that the addition of four cycles of paclitaxel to four cycles of doxorubicin and cyclophosphamide (AC-P) resulted in modest improvements in the two end points of disease-free survival (DFS) and overall survival (OS). The third unpublished study evaluating four cycles of AC followed by paclitaxel or docetaxel in breast cancer did not show any statistically significant differences in DFS or OS between any group. The economic evaluation of paclitaxel for adjuvant therapy in early breast cancer was based on two of the three trials submitted as clinical evidence and used a probabilistic Markov state-transition model. The measure of health benefit was quality-adjusted life-years (QALYs) and the model included direct costs using a UK NHS perspective. The primary analysis compared AC-P with four cycles of AC. The reported incremental cost-effectiveness ratio (ICER) for this comparison was £4726 per additional QALY for AC-P compared with four cycles of AC. The submission did not include a systematic review for clinical or cost-effectiveness evidence. As a result, potentially relevant trials and previously published studies were omitted. The main comparator used did not represent standard care in the UK NHS and a large number of relevant comparators were omitted, including docetaxel. The manufacturer did not consider potentially important patient subgroups defined by baseline risk, and the cost-effectiveness result in the average overall patient population may conceal important variation between subgroups. Overall, although the economic model may have indicated that the addition of four cycles of paclitaxel to four cycles of AC may be cost-effective compared with providing four cycles of AC only, this comparison is not informative to current clinical practice in the UK NHS. In the context of this review it is not possible for the ERG to predict the cost-effectiveness of paclitaxel compared with more appropriate, and potentially more effective, relevant comparators. The guidance issued by NICE in July 2006 as a result of the STA states that paclitaxel is not recommended as an option for the adjuvant treatment of women with early node-positive breast cancer.

scholarly journals Clinical and laboratory criteria used for patient selection for adjuvant chemotherapy in post-operative breast cancer

Mastology ◽  
2020 ◽  
Vol 30 (Suppl 1) ◽  
Author(s):  
Bianca Pamela Soares ◽  
Grasiela Benini dos Santos Cardoso ◽  
Marcia Fernanda Roque da Silva ◽  
Roberto Odebrecht Rocha
Keyword(s):  
Breast Cancer ◽  
Adjuvant Chemotherapy ◽  
Adjuvant Therapy ◽  
Hormone Receptors ◽  
Early Stage ◽  
Effective Means ◽  
Breast Cancer Incidence ◽  
Neoadjuvant Treatment ◽  
Disease Free Survival ◽  
Cross Sectional

Introduction: Breast cancer remains the second most common type of cancer in the world and the first among women, with breast cancer incidence rates doubling in the last thirty years. In 2013, the St Gallen Consensus recommended the use of a study of the multigene profile and phenotyping to indicate adjuvance by use of the MammaPrint and Oncotype4 applications; however, as they are not available in the Unified Health System (Sistema Único de Saúde–SUS), clinical predictive criteria and laboratory tests are used for indication of adjuvant therapy. Objective: Evaluation of clinical and laboratory criteria in the selection of patients with breast cancer after surgery for adjuvant chemotherapy and quantification of the factors used in the selected patients and their results. Method: This is a retrospective, cross-sectional observational study with patients over 18 years of age, without gender and race restriction, diagnosed with breast cancer at a public hospital in São Paulo, from 09/10/18 to 10/12/18, who underwent surgical treatment and discussed adjuvant therapy. Patients with metastatic neoplasia and/or undergoing neoadjuvant treatment were excluded. Data collected were: TNM staging, histological type and hormone receptors, age and comorbidities in all medical records collected. Results: 1,390 consultations were carried out, with 42 patients selected, according to the study criteria. Since 40% of the patients were outside the recommended range for breast cancer screening, regarding TNM, late diagnoses were evidenced, with 69% presenting ≥T2 and 36% with lymph node involvement. Of the 42 patients, 98% received adjuvant therapy. Conclusion: It was evidenced by Paik et al., that 92.1% of the 668 patients enrolled in the NSABP B-14 study were considered of intermediate or high risk according to the NCCN and St. Gallen criteria, and by Oncotype DX, 50.6% of the patients were classified as at low risk of recurrence. However, as these are not available in SUS, the present study shows the need to use clinical and laboratory factors to indicate adjuvant therapy, and with these, of the 42 patients, 98% had indication, showing that they are not such effective means in the use of genetic tests, and patients treated by SUS initiate their treatments late, which impacts disease-free survival, since less than 10% of patients received care with early stage neoplasia.

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