Clinical assessment of breast cancer risk based on family history

Family history is a key component of breast cancer risk assessment. Family history provides clues as to the likelihood of a hereditary breast cancer syndrome and the need for a cancer genetics referral and can be used in the setting of a breast cancer risk assessment model to estimate a woman's risk. Appropriate breast cancer screening and risk reduction management plans rely on an accurate assessment of a patient's family history. This article reviews the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Breast Cancer Risk Reduction and provides insight into the application of the guidelines in clinical practice.     

Comparison the standard therapies of gastric cancer in Japan with those in the West

We compare Japanese practice guidelines for gastric cancer with those published from National Comprehensive Cancer Network (NCCN). In surgery, D1 dissection is referred as standard in NCCN, because mortality of D2 dissection was higher than that of D1 (10% vs 4%). However, Japanese investigators show lower mortality rate (0.8%) of D2 dissection, so D2 dissection is referred as standard for stage II/III disease in Japan. Chemoradiotherapy is chosen for residual disease or unresectable disease (M0) in NCCN, but these categories are required D2 dissection or extensive resection in Japan. Because Japanese D2 dissection has better optimized survival rate than chemoradiotherapy,chemoradiotherapy will not be introduced to Japan.In chemotherapy, ECF or taxanes (e.g., DCF) is referred as a prior therapy in NCCN, but 5-FU contain regimen (e.g., FP, LV/5-FU, S-1, or S-1/CDDP) as a prior therapy in Japan. Both ECF and DCF are too toxic regimen for Japanese patient to use. Difference of race seem to be relevant to difference of mortality or toxicities. From the results of ACTS-GC, we think that adjuvant chemotherapy is referred as standard in Japan. Future, results of JCOG 9912 and many other trials will be coming soon, so the guidelines will be changed.     

Aromatase inhibitors in postmenopausal breast cancer patients

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.     

Japan Society of Gynecologic Oncology guidelines 2015 for the treatment of ovarian cancer including primary peritoneal cancer and fallopian tube cancer

The fourth edition of the Japan Society of Gynecologic Oncology guidelines for the treatment of ovarian cancer including primary peritoneal cancer and fallopian tube cancer was published in 2015. The guidelines contain seven chapters and six flow charts. The major changes in this new edition are as follows—(1) the format has been changed from reviews to clinical questions (CQ), and the guidelines for optimal clinical practice in Japan are now shown as 41 CQs and answers; (2) the ‘flow charts’ have been improved and placed near the beginning of the guidelines; (3) the ‘basic points’, including tumor staging, histological classification, surgical procedures, chemotherapy, and palliative care, are described before the chapter; (4) the FIGO surgical staging of ovarian cancer, fallopian tube cancer, and primary peritoneal cancer was revised in 2014 and the guideline has been revised accordingly to take the updated version of this classification into account; (5) the procedures for examination and management of hereditary breast and ovarian cancer are described; (6) information on molecular targeting therapy has been added; (7) guidelines for the treatment of recurrent cancer based on tumor markers alone are described, as well as guidelines for providing hormone replacement therapy after treatment.     

解读美国国家综合癌症网络食管癌临床诊疗指南

 美国国家综合癌症网络（National Comprehensive Cancer Network，NCCN）是由美国21个国际顶尖水平的癌症中心组成的协作组织，其主要任务是制定各类肿瘤的临床诊疗指南，目的是改善肿瘤治疗的质量、有效性和效率，以使患者更好地生存。目前，NCCN的肿瘤临床诊疗指南已经广泛应用于临床，并且根据最新的临床研究结果每年更新。关于NCCN食管癌临床诊疗指南目前国内还没有正式版本，也没有在临床推广执行。现对2007年NCCN食管癌临床诊疗指南进行解读，并与中国目前临床实践进行对照。     

Assessing racial/ethnic disparities in chemotherapy treatment among breast cancer patients in context of changing treatment guidelines

Conflicting study results with regards to racial/ethnic disparities in chemotherapy use among breast cancer patients may be due to the different sample populations, treatment data sources, and treatment eligibility definitions used. This study examined chemotherapy disparity in the context of changing treatment guidelines and explored factors that may help explain treatment differences observed. The data come from a population-based study that included interview and medical record data (including state cancer registry) from non-Hispanic (nH) White, nH Black, and Hispanic breast cancer patients diagnosed in 2005–2008. Logistic regression using model-based standardization was used to estimate age-adjusted risk differences and multivariate analysis was conducted to identify explanatory factors of the differences. Per the 2005/2006 National Comprehensive Cancer Network (NCCN) guidelines, minority patients appeared more likely than nH White patients to receive a chemotherapy recommendation (0.87 vs 0.75, p = 0.003). When eligibility was determined per the 2007 guidelines, there was no disparity because under these guidelines, nH White patients were more likely than minority patients to have tumors that no longer required chemotherapy. There was evidence that chemotherapy advances for breast cancer patients are implemented in the clinical setting well ahead of NCCN guidelines. Finally, among eligible patients, chemotherapy recommendation was very high and virtually always accepted and received, with no disparities found at these points of clinical care. The findings suggest that an evaluation of guideline-adherent chemotherapy treatment patterns must carefully consider the definition of treatment eligibility, given ongoing changes in treatment guidelines and early uptake of new diagnostic tools and treatments.     

Survey of the application of the korean clinical practice recommendations on breast cancer treatment: the utility of the korean breast cancer society guidelines

This survey was performed to analyze the usability of the third edition of the Korean breast cancer clinical practice guidelines (KBCCPG) in clinical practice. We made a questionnaire composed of 18 general and 82 specific questions regarding benign breast disease (B; 1 question); non-invasive disease (N; 12 questions); early-stage disease (E; 26 questions); advanced disease (A; 24 questions); and metastatic (M) breast cancer-related problems (19 questions). A total of 100 questionnaires, with a link to an online survey, were delivered via e-mail to over 700 members of the Korean Breast Cancer Society (KBCS), and associated academy members, over 20 days between 26th February and 16th May 2010. Out of 270 respondents who read the e-mail, 96 answered the questionnaire. Participants included 87 surgical oncologists, 5 radiation oncologists, 2 oncoplastic surgeons, 1 pathologist, and 1 medical oncologist. The third KBCCPG were perceived as differing from the second guidelines in terms of the level of clinical evidence required before choosing a recommendation. For the progress of the KBCCPG, the guideline committee should try to reinforce all courses of guideline development with several elements including data from clinical trials of Korean breast cancer patients, securing a multidisciplinary approach, developing consistent and reasonable processes for each step of the revision of the guidelines, induction of liberal scientific and ethical discussion about all issues with all KBCS members. The cost-effectiveness of healthcare and the logical development of the KBCCPG would also be ensured. Timely updates of the clinical guidelines for breast cancer treatment are essential to facilitate optimal decision-making in daily practice, and to ensure adequate patient feedback.     

Adherence to cancer prevention guidelines and risk of breast cancer

Healthy eating patterns and keeping physically active are potentially more important for chronic disease prevention than intake or exclusion of specific food items or nutrients. To this end, many health organizations routinely publish dietary and lifestyle recommendations aimed at preventing chronic disease. Using data from the Canadian National Breast Screening Study, we investigated the association between breast cancer risk and adherence to two sets of guidelines specific for cancer prevention, namely the American Cancer Society (ACS) Guidelines and the World Cancer Research Fund/American Institute for Cancer Research (WCRF/AICR) Recommendations. At baseline, 49,613 women completed dietary and lifestyle questionnaires and height and weight measurements were taken. During a mean follow‐up of 16.6 years, 2,503 incident cases of breast cancer were ascertained. Cox proportional hazard models were used to estimate hazard ratios (HR) and 95% confidence intervals (CI) for the association of meeting each guideline, and number of guidelines met, with breast cancer risk. The two sets of guidelines yielded similar results. Specifically, adherence to all six ACS guidelines was associated with a 31% reduction in breast cancer risk when compared to subjects adhering to at most one guideline (HR = 0.69; 95% CI = 0.49–0.97); similarly, adherence to six or seven of the WCRF/AICR guidelines was also associated with a 31% reduction in breast cancer risk (HR = 0.69; 95% CI = 0.47–1.00). Under either classification, meeting each additional guideline was associated with a 4–6% reduction in breast cancer risk. These results suggest that adherence to cancer prevention guidelines is associated with a reduced risk of breast cancer.     

Japan Society of Gynecologic Oncology guidelines 2015 for the treatment of vulvar cancer and vaginal cancer

Background

Vulvar cancer and vaginal cancer are relatively rare tumors, and there had been no established treatment principles or guidelines to treat these rare tumors in Japan. The first version of the Japan Society of Gynecologic Oncology (JSGO) guidelines for the treatment of vulvar cancer and vaginal cancer was published in 2015 in Japanese.

Objective

The JSGO committee decided to publish the English version of the JSGO guidelines worldwide, and hope it will be a useful guide to physicians in a similar situation as in Japan.

Methods

The guideline was created according to the basic principles in creating the guidelines of JSGO.

Results

The guidelines consist of five chapters and five algorithms. Prior to the first chapter, basic items are described including staging classification and history, classification of histology, and definition of the methods of surgery, radiation, and chemotherapy to give the reader a better understanding of the contents of the guidelines for these rare tumors. The first chapter gives an overview of the guidelines, including the basic policy of the guidelines. The second chapter discusses vulvar cancer, the third chapter discusses vaginal cancer, and the fourth chapter discusses vulvar Paget’s disease and malignant melanoma. Each chapter includes clinical questions, recommendations, backgrounds, objectives, explanations, and references. The fifth chapter provides supplemental data for the drugs that are mentioned in the explanation of clinical questions.

Conclusion

Overall, the objective of these guidelines is to clearly delineate the standard of care for vulvar and vaginal cancer with the goal of ensuring a high standard of care for all women diagnosed with these rare diseases.

     

Implementation of NCCN distress management guidelines by member institutions

Up to half of all adults with cancer experience clinically significant psychological distress and much of this distress goes unrecognized and untreated. As part of an effort to improve the care of cancer patients, the National Comprehensive Cancer Network (NCCN) has developed clinical practice guidelines for distress management that include recommendations about the evaluation and treatment of distress. These authors conducted a study to evaluate the implementation of these distress management guidelines by NCCN member institutions. The NCCN member institutions that treat adults were asked in April and May 2005 to describe their distress management practices, and 15 (83%) provided responses. Of these, 8 (53%) conduct routine distress screening for at least some patient groups, with 4 additional institutions (27%) pilot-testing screening strategies. However, only 20% of surveyed member institutions screened all patients as the guidelines recommend. In addition, whether institutions that conduct routine distress screening do so through standardized assessment methods is unclear, because 37.5% of institutions that conduct screening rely only on interviews to identify distressed patients. Findings suggest that most institutions consider screening patients' mental health concerns important and worthwhile, but that greater implementation of guideline recommendations is needed.     

Breast cancer treatment in clinical practice compared to best evidence and practice guidelines

There is sparse evidence on community practice patterns in treating women with breast cancer. This study compared care of women with breast cancer with evidence from meta-analyses and US National Comprehensive Cancer Network (NCCN) clinical guidelines. Records of 4395 women with breast cancer were abstracted from practices of 19 surgeon oncologists in six specialty practices in the Philadelphia region during 1995-1999. Patients were followed through December 2001. Low-frequency data were obtained on all patients. All other data were from a random sample of 464 women, minimum of 50 patients per practice. Actual care provided was compared to NCCN guidelines and results of meta-analyses. Fewer than half the women received treatments reflecting meta-analysis results or NCCN guidelines, by disease stage/TNM status. Adherence to either standard varied from 0% for LCIS to 87% for stages IIA or IIB node positive. There are multiple interactive reasons for low adherence to guidelines or meta-analyses results, including insufficient health system supports to clinicians, inadequate organisation and delivery systems and ineffective continuing medical education. The paucity of written information from patient records on physician/patient interactions limits the understanding of treatment decisions.     

Evidence-based guidelines and decision support services: A discussion and evaluation in triple assessment of suspected breast cancer

Widespread health service goals to improve consistency and safety in patient care have prompted considerable investment in the development of evidence-based clinical guidelines. Computerised decision support (CDS) systems have been proposed as a means to implement guidelines in practice. This paper discusses the general concept in oncology and presents an evaluation of a CDS system to support triple assessment (TA) in breast cancer care. Balanced-block crossover experiment and questionnaire study. One stop clinic for symptomatic breast patients. Twenty-four practising breast clinicians from United Kingdom National Health Service hospitals. A web-based CDS system. Clinicians made significantly more deviations from guideline recommendations without decision support (60 out of 120 errors without CDS; 16 out of 120 errors with CDS, P < 0.001). Ignoring minor deviations, 16 potentially critical errors arose in the no-decision-support arm of the trial compared with just one (P = 0.001) when decision support was available. Opinions of participating clinicians towards the CDS tool became more positive after they had used it (P < 0.025). The use of decision support capabilities in TA may yield significant measurable benefits for quality and safety of patient care. This is an important option for improving compliance with evidence-based practice guidelines.     

Assessment of response to therapy in advanced breast cancer

In 1979, the protocol guidelines on clinical assessment of response to therapy in advanced breast cancer were proposed by the Chemotherapy Committee and the Endocrine Therapy Committee of the Japan Mammary Cancer Society, in accordance with guidelines presented by the UICC (1977) and by the Breast Cancer Task Force of the NCI (1978). After amending some clauses, these protocol guidelines were finally published in 1982 by the Japan Mammary Cancer Society. A discussion was presented on the consistency of the present guidelines with the criteria for the evaluation of cancer chemotherapy for solid tumors, that was proposed by Koyama-Saito's Committee and was later adopted by the Japan Society for Cancer Therapy. The newly organized committee of the Japan Mammary Cancer Society is now carrying out further work to clarify several questionable points which have arisen in the present protocol guidelines.     

Trends in recommendations of myelosuppressive chemotherapy for the treatment of breast cancer: evolution of the national comprehensive cancer network guidelines and the cooperative group studies

Breast cancer, the most commonly occurring cancer in women in the United States, is the second most common cause of cancer-related mortality. Mortality rates in breast cancer have, however, declined by 2.3% per year from 1990 to 2001, partly because of the development of better chemotherapy agents and regimens, which have resulted in major changes in the standards of care. To study the changes in the past decade in expert opinion about the preferred chemotherapy for breast cancer, we compared the treatment guidelines of the National Comprehensive Cancer Network (NCCN) for 1996, 2000, and 2005. The myelotoxicity associated with the NCCN-recommended agents was also assessed by using data from the prescribing information for the drugs. This review showed that many of the agents, combinations of agents, and new dosing schedules currently recommended in the NCCN guidelines for the treatment of breast cancer are associated with myelosuppression. Many of these myelosuppressive regimens, which were used in the past to treat advanced-stage or metastatic disease, are now prescribed for early-stage disease. Furthermore, the cytotoxic agents and regimens recommended by the NCCN are more myelosuppressive than those recommended a decade ago. Many oncologists are aware of this trend toward the more intensive treatment of patients with cancer and take proactive steps to minimize the risk of myelosuppression and its complications.     

2022年第3版《NCCN非小细胞肺癌临床实践指南》更新解读

美国国家综合癌症网络(National Comprehensive Cancer Network,NCCN)是由32家世界知名癌症中心组成的非营利性联盟组织,旨于提供更优质、高效和合理的癌症患者管理模式。NCCN每年持续更新临床实践指南,指南以临床研究数据为依据,确保肿瘤领域专家和患者均能获取最新的癌症预防、筛选和治疗方法,从而达到最佳疗效。NCCN指南不仅是美国肿瘤领域临床决策的标准,而且是全球肿瘤临床实践最广泛的指南。2022年《NCCN非小细胞肺癌临床实践指南》目前更新至第3版,较2021年第7版指南主要在临床评估、分子标志物检测、围手术期治疗、放疗、晚期非小细胞肺癌靶向治疗和免疫治疗等方面进行更新。本文就新版指南更新内容进行逐一解读。     

Managing the risk of osteoporosis in women with a history of early breast cancer

Estrogen is known to play an important role in skeletal health. Female breast cancer patients who receive treatments that reduce estrogen levels, such as aromatase inhibitors, may increase their risk of developing osteoporosis and their risk of fracture. Clinical guidelines enable the physician to assess the risk of osteoporosis by patient history and physical examination. For patients identified as being at risk, it is necessary to test bone mineral density (BMD), using the result to determine which patients require treatment. Two groups can be identified as requiring BMD assessment according to general guidelines: patients < 45 years old who become menopausal due to treatment, and breast cancer patients receiving aromatase inhibitors. Bisphosphonates appear to be the logical treatment of choice for breast cancer patients, as they do not interact with the estrogen receptor. Although not all women receiving aromatase inhibitors will require additional treatment for bone health, postmenopausal women with a history of breast cancer at risk of osteoporosis should be identified, monitored, and managed according to practice guidelines.     

The characteristics of Japanese guidelines on diagnosis and treatment of cardiac sarcoidosis compared with the previous guidelines

Sarcoidosis in Japanese sarcoidosis is characterized by a high prevalence of cardiac involvement. In this regard, cardiac sarcoidosis (CS) continues to be an important focus of study among physicians caring for sarcoidosis in Japan. The Japanese Ministry of Health, Labor and Welfare (MHLW) and Japan Society of Sarcoidosis and other Granulomatous Disorders (JSSOG) have published clinical guidelines aiming to assist clinical practices. Recently, the Japanese Circulation Society (JCS) has published new clinical guidelines for the diagnosis and treatment of CS that contain several new insights compared to previously published guidelines in Japan and other countries.     

Progress in systemic adjuvant therapy of early-stage breast cancer

Despite major improvements in the treatment of early-stage breast cancer over the past 15 years, many controversies exist surrounding the optimal adjuvant therapies for these patients. Adjuvant chemotherapy has been demonstrated to reduce recurrence and improve mortality, but questions persist as to what is the optimal regimen and how much adjuvant therapy should be administered. Among the adjuvant chemotherapy issues that remain controversial are the role of the taxanes and the optimal number of adjuvant chemotherapy treatment cycles. In the realm of adjuvant endocrine therapy, the early results of the Anastrozole, Tamoxifen and Combination (ATAC) trial have led to confusion as to how best to treat postmenopausal patients with estrogen receptor-positive, early-stage breast cancer. Clinicians are faced with the decision of choosing between tamoxifen and anastrozole. The enthusiasm for so-called targeted therapies, such as trastuzumab, in patients with metastatic disease, is now being carried over into the adjuvant setting. Multiple clinical trials around the world are evaluating the potential benefit of adding trastuzumab to chemotherapy in patients with HER2-positive, early-stage breast cancer. In the United States, clinicians are faced with many decisions on how to optimally treat patients with early-stage breast cancer. Evidence-based treatment guidelines such as those developed by the National Comprehensive Cancer Network (NCCN) provide a useful algorithm for assisting in making treatment decisions. It is hoped that, in the next few years, the results of ongoing clinical trials now underway will lead to further improvements in the outcome of patients with early-stage breast cancer.Presentation made at the ASCO-JSCO Joint Symposium held at Tokyo, Japan, on October 18, 2002.     

Germline genetic testing in breast cancer: Rationale for the testing of all women diagnosed by the age of 60 years and for risk-based testing of those older than 60 years

Approximately 5% to 10% of women diagnosed with breast cancer will have a pathogenic variant (PV) in a hereditary cancer susceptibility gene, and this has significant implications for the management of these patients and their relatives. Despite the benefits of genetic testing, many eligible patients with breast cancer never undergo testing because of various barriers, including complicated testing criteria such as those from the National Comprehensive Cancer Network (NCCN). In 2019, the American Society of Breast Surgeons (ASBrS) proposed germline genetic testing for all patients with breast cancer to increase the identification of PV carriers. In 2020, a Mayo Clinic study highlighted the limitations of these 2 genetic testing guidelines (NCCN and ASBrS) and proposed a hybrid approach of testing all women diagnosed with breast cancer by the age of 65 years and using NCCN criteria for older patients. This commentary presents an updated analysis of the Mayo Clinic data and discusses the rationale for using the age of 60 years rather than 65 years as the cutoff for this hybrid approach. Using an age at diagnosis of ≤60 or ≤65 years for the universal testing of patients with breast cancer detected more PVs (11.9% [16 of 134] and 15.7% [21 of 134], respectively) in comparison with using the NCCN criteria. Lowering the age for universal testing from 65 to 60 years maintained the sensitivity of detecting a PV at >90% while sparing testing for an additional 10% of women. Compared with the testing of all patients, the hybrid approach would allow 31% of all women with breast cancer to forgo testing and result in fewer variants of uncertain significance identified and, therefore, would decrease the chance of harm from misinterpretation of these variants.     

Metastatic breast cancer, version 1.2012: featured updates to the NCCN guidelines

These NCCN Guidelines Insights highlight the important updates/changes specific to the management of metastatic breast cancer in the 2012 version of the NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Breast Cancer. These changes/updates include the issue of retesting of biomarkers (estrogen receptor, progesterone receptor, and human epidermal growth factor receptor 2) on recurrent disease, new information regarding first-line combination endocrine therapy for metastatic disease, a new section on monitoring of patients with metastatic disease, and new information on endocrine therapy combined with an mTOR inhibitor as a subsequent therapeutic option.