Pilot study to assess prolonged overnight fasting in breast cancer survivors (longfast).

PURPOSE: Retrospective analysis of nightly fasting among women with breast cancer suggests that fasting < 13 h may be associated with a higher risk of breast cancer recurrence. We sought to evaluate prolonged overnight fasting (POF), an accessible nonpharmacological intervention, in a prospective feasibility study. METHODS: We designed a single-arm, pilot study to evaluate the feasibility of fasting for 13 h overnight for 12 weeks among women with a history of early-stage breast cancer survivors. Baseline and end of study assessments included measurements of body mass index (BMI), blood biomarkers, quality of life (QOL), mood, fatigue, and physical activity. Patient-reported outcome questionnaires were also administered at 6 weeks. Feasibility was defined as ≥ 60% of participants documenting fasting for 13 h on at least 70% of nights during the study period. RESULTS: Forty women with a history of breast cancer were enrolled with a median age of 60 (range 35-76) and median time since diagnosis of 4.5 years (range 0.8-20.7). At baseline, BMI was ≥ 25 in 37.5%. Ninety-five percent of participants fasted ≥ 13 h for at least 70% of study days (95% CI 83-99%). There was a statistically significant improvement in anxiety (p = 0.0007) at 6 weeks and BMI (p = 0.0072), anxiety (p = 0.0141), depression (p = 0.0048), and fatigue (p = 0.0105) at 12 weeks. There was no significant change in overall QOL, physical activity levels, or blood biomarkers at 12 weeks. CONCLUSIONS: POF is feasible among patients with a history of breast cancer and may potentially improve BMI, mood, and fatigue without detrimental effects on overall QOL.

Locally Recurrent Secretory Carcinoma of the Breast with NTRK3 Gene Fusion.

Enhanced understanding of the molecular events underlying oncogenesis has led to the development of "tumor-agnostic" treatment strategies, which aim to target a tumor's genomic profile regardless of its anatomic site of origin. A classic example is the translocation resulting in an ETV6-NTRK3 gene fusion, a characteristic driver of a histologically diverse array of cancers. The chimeric ETV6-NTRK3 fusion protein elicits constitutive activation of the tropomyosin receptor kinase (TRK) C protein, leading to increased cell survival, growth, and proliferation. Two TRK inhibitors, larotrectinib and entrectinib, are currently approved for use in the metastatic setting for the treatment of advanced solid tumors harboring NTRK fusions. Here we report a rare case of recurrent secretory carcinoma of the breast (SCB) with NTRK3 gene fusion. Whereas most cases of SCB represent slow-growing tumors with favorable outcomes, the case detailed here is the first to the authors' knowledge of recurrence within 1 year of surgery. We review the molecular findings and potential clinical significance. KEY POINTS: The translocation resulting in the ETV6-NTRK3 gene fusion is a known oncogenic driver characteristic of secretory carcinoma of the breast (SCB). Whereas most cases of SCB represent slow-growing tumors with favorable outcomes, the case here with ETV6-NTRK3 gene fusion had local recurrence within 1 year of surgery. Two tropomyosin receptor kinase (TRK) inhibitors, larotrectinib and entrectinib, are approved to treat NTRK fusion-positive tumors, demonstrating sustained high overall response rates in the metastatic setting. Approval of TRK inhibitors necessitates optimization of NTRK fusion detection assays, including detection with liquid biopsies.

Findings From a Provider-Led, Mindfulness-Based, Internet-Streamed Yoga Video Addressing the Psychological Outcomes of Breast Cancer Survivors.

The aim of this study was to explore the psychological outcomes of a mindfulness-based Internet-streamed yoga video in breast cancer survivors. A one-group, repeated-measures, purposive sample using a directed qualitative descriptive and convergent mixed-methods approach was used. Participants were recruited from breast oncology practices across 2 settings in the northeastern United States in April 2019. Education about the video was provided, and the link to the video was sent to participants. Demographic information, Knowing Participation in Change Short Form (KPCSF), Short Warwick-Edinburgh Mental Well-being Scale (WEMWBS), and the Generalized Anxiety Distress Scale (GAD-7) were obtained at baseline and at 2 and 4 weeks. A semistructured interview was conducted at 4 weeks. Thirty-five women (mean age = 56 years) participated. A one-group, repeated-measures analysis of variance indicated statistically significant changes occurred in all measures between week 0 and week 4: decreased GAD (t = -2.97, P = .004), improved WEMWBS (t = 2.52, P = .008), and increased KPC (t = 2.99, P = .004). Qualitative findings suggest the overall experience of the video was positive and the women would recommend its use to others. Improvements in all psychological measures were achieved with video use. Findings indicate an improvement in psychological measures and support the theory of Knowing Participation in Change. This work further contributes to accessible, flexible interventions available through the Internet and/or mobile applications aimed at improving breast cancer survivorship.

A Web-Streamed Yoga Intervention for Breast Cancer Survivors.

BACKGROUND: Current research indicates that structured yoga practice may improve physical and emotional symptoms related to cancer treatment. Yoga is recommended for patients with cancer, yet there are barriers to participation in community- and hospital-based classes. Wellness interventions such as yoga are easy to access via the internet, but information can be overwhelming and not tailored to people with cancer. PURPOSE: The purpose of this study was to develop a nurse-led, breast cancer-specific, web-based gentle yoga video for home use, and to understand the feasibility, utilization, and safety of the video in a sample of breast cancer survivors. METHOD: Data was collected via open-ended telephone interviews three times over a 4-week period. RESULTS: The 14 women participating in the study reported that the web-based video was safe in that it resulted in no injury, and was easy to use, and convenient to access. However, most did not continue to practice the video for the full 4 weeks of the study. A knowledge deficit about gentle yoga as a structured mindful movement-based practice rather than a vigorous exercise was identified. IMPLICATIONS: Nurses can provide tailored wellness interventions for cancer survivors via video stream. Future work should include instruction that yoga is a mindfulness-based self-care activity requiring regular practice.

Aromatase inhibitors and musculoskeletal pain in patients with breast cancer.

Aromatase inhibitors are recommended for use by postmenopausal women who have estrogen receptor-positive early-stage breast cancer. They reduce local and distant recurrence more effectively than tamoxifen. Anastrozole (Arimidex, AstraZeneca Pharmaceuticals LP), letrozole (Femara, Novartis Pharmaceuticals Corporation), and exemestane (Aromasin, Pfizer Inc.) inhibit aromatase activity, thus significantly decreasing estrogen production in tissues such as liver, muscle, and fat. Very low levels of estrogen may be one cause of musculoskeletal pain, a common side effect associated with the drugs. In the major adjuvant aromatase inhibitor clinical trials, 25%-30% of the patients enrolled experienced musculoskeletal pain. Although quality-of-life studies demonstrate that aromatase inhibitors are well tolerated overall, some women discontinue this treatment because of musculoskeletal pain. Little is known about how to predict, measure, or manage musculoskeletal pain caused by aromatase inhibition. Oncology nurses play an important role in the assessment and management of side effects related to cancer. This article provides an overview of the current knowledge about musculoskeletal pain in patients with breast cancer receiving aromatase inhibitor therapy.

The Experience of Initiating Oral Adjuvant Treatment for Estrogen Receptor-Positive Breast Cancer.

PURPOSE/OBJECTIVES: To describe the experience of women with estrogen receptor-positive breast cancer who are initiating oral adjuvant therapy and to determine what they describe as facilitating and/or hindering this experience. 
. RESEARCH APPROACH: Qualitative inquiry. 
. SETTING: Massachusetts General Hospital Cancer Center in Boston. 
. PARTICIPANTS: 14 women aged 48-81 years. 
. METHODOLOGIC APPROACH: Qualitative, descriptive study using content analysis.
. FINDINGS: Five themes were identified. CONCLUSIONS: Each participant who was initiating oral adjuvant treatment described many unmet needs. Women who were caregivers, were older aged, had several chronic illnesses, and were on several medications reported more difficulty transitioning to oral adjuvant therapy. 
. INTERPRETATION: This study suggests that nurses need to collaborate with other members of the healthcare team to assess the needs of and provide comprehensive care to women initiating oral adjuvant therapy. This is particularly true for women who are older aged, self-reported caregivers, and on several medications, and who have chronic comorbid conditions.

Women's experiences with antiestrogen therapy to treat breast cancer.

PURPOSE/OBJECTIVES: To understand the experiences of women undergoing antiestrogen therapy (AET) to treat breast cancer. RESEARCH APPROACH: Content analysis of tape-recorded focus group interviews. SETTING: Breast oncology center of a large medical center in the northeastern United States. PARTICIPANTS: Purposive sample of 21 women undergoing AET to treat breast cancer. METHODOLOGIC APPROACH: A nonexperimental qualitative, descriptive design using open-ended interviews and content analysis to isolate themes. MAIN RESEARCH VARIABLES: Women's experiences with AET. FINDINGS: Five themes were isolated and were focused on the overall experience of having breast cancer: symptoms related to AET, shared decision making, being strong for others, discovering new priorities, and recognizing vulnerability. CONCLUSIONS: Oral therapies are an increasingly popular treatment option for various types of cancer, particularly in women with estrogen-sensitive breast cancer. Although this type of treatment has been efficacious in terms of disease-free and overall survival, women undergoing AET face many challenges related to treatment. Healthcare providers need to understand women's perceptions of AET and its effects as a first step in the process of developing interventions to improve care. INTERPRETATION: More research is needed to distinguish whether the presence of preexisting chronic illness, differences in type of AET, age, and ethnicity impact the overall experience of women on AET. Individual interviews may be necessary to fully explore the experience. Oncology nurses should implement surveillance care to explore the effects of AET on women with breast cancer.

"I feel like I am 100 years old!" managing arthralgias from aromatase inhibitors.

Aromatase inhibitors (AIs) are recommended for the treatment of estrogen-sensitive breast cancer in postmenopausal women and provide a superior risk reduction compared to five years of tamoxifen alone. Arthralgias, a common side effect of AIs, may adversely affect quality of life, treatment adherence, and persistence. Early discontinuation of AIs may result in an inadequate clinical response. Over-the-counter analgesics, exercise, and drug holidays are common strategies used to manage arthralgias, however few interventions are evidence-based. Patients experiencing arthralgias may experience distress and, therefore would benefit from ongoing nursing support. When caring for patients with arthralgias, nurses should assess for potential modifiable risk factors, recommend lifestyle changes and/or pharmacologic interventions, and offer ongoing education and follow-up.