Breast Cancer in Young Women: Research Priorities. A Report of the Young Survival Coalition Research Think Tank Meeting

Trajectories of antidepressant use after tamoxifen initiation among young and middle-aged women with breast cancer

PURPOSE

Antidepressant treatment patterns may change after women with breast cancer (BC) initiate tamoxifen, potentially impacting health outcomes. We characterized trajectories of antidepressant use after initiating tamoxifen among young and middle-aged women with BC, identifying risk factors for trajectory group membership.

METHODS

A retrospective cohort included women 18-64 years-old with BC and antidepressant treatment history who received a new tamoxifen dispensing (index date). We measured longitudinal antidepressant use post-index date as 12, monthly, proportion of days covered (PDC) measurements in a 25% random sample of IQVIA PharMetrics® Plus for Academics US claims, 2006-2022. Group-based trajectory models identified latent subgroups of antidepressant use by testing 2-6-group representations; the best model fit determined by the lowest Bayesian Information Criterion, clinical interpretability, and each subgroup comprising ≥ 5% of the cohort. Using multinomial logistic regression, baseline covariates including demographics, depression status and the CYP2D6-inhibitory strength of antidepressants were evaluated as risk factors for the trajectory of antidepressant use after tamoxifen initiation.

RESULTS

Our sample of 851 women followed four distinct antidepressant adherence trajectories after tamoxifen initiation: 12% exhibited immediately decreasing use [mean PDC (sd) 8% (± 7)]; 7% exhibited delayed decreasing use [41% (± 14)]; 20% exhibited dynamic-moderate use [54% (± 15)]; and 60% exhibited consistently high use [91% (+ 7)]. Age, depression, and treatment with non CYP2D6-inhibiting antidepressants were associated with women's trajectory of antidepressant use after initiating tamoxifen.

CONCLUSION

Nearly 40% of women were nonadherent to antidepressants after tamoxifen initiation. Future research should explore cancer-related and mental health implications of this nonadherence.

Informing Psychosocial Care for Young Couples Coping with Early-Onset Breast Cancer: A Cross-Sectional Examination of Unmet Service Needs and Their Association with Psychological Distress in the First Year Post-Diagnosis

Objective: Young women diagnosed with breast cancer report greater psychological and physical morbidity than both older women and healthy peers. Similarly, young partners experience elevated cancer-related distress. Psychosocial oncology programs are not frequently attuned to the needs of young adult patients and may exclude their social networks. This marks a critical gap in psychosocial care delivery. The study investigated unmet service needs, psychological distress, and care preferences of young couples managing breast cancer in the first year post-diagnosis. Methods: Forty dyads (n = 80) of women aged 18-45 and their partners completed measures of anxiety (Generalized Anxiety Disorder-7), depression (Patient Health Questionnaire-9), and a service use questionnaire adapted from previously published Adolescent and Young Adult (AYA) literature. The resulting 25 items assessed perceived care needs and service utilization across three domains: informational, emotional/supportive, and practical issues. Descriptive statistics, cross-tabulations, and bivariate correlations were computed. Actor and partner effects of unmet needs on mental health outcomes were investigated with generalized estimating equations (GEE). Results: Patients and partners were in their late thirties, mostly non-Hispanic White, married, highly educated, and employed. Approximately 60% of patients and 43%-66% of partners presented one or more unmet service needs, which correlated with greater distress. Unmet needs about information related to exercise, recurrence, nutrition, and symptom management were prevalent. Unmet supportive service needs of both patients and partners included age-appropriate programs, sexual health, and family counseling. Women reported practical needs for work/school accommodations, integrative care, financial issues and health coverage; while financial concerns, health insurance, and caregiving demands were priorities for partners. Conclusion: Young couples facing early-onset breast cancer experience large proportions of unmet service needs. These challenges were exacerbated by the lack of developmentally targeted psychosocial programs pertaining to informational, supportive, and practical care needs. Enhancing providers' understanding of the psychosocial issues affecting young couples' well-being, and the implementation of systematic procedures to detect and respond to their distress, is urgently needed.

Perceptions and knowledge of breast cancer and breast self-examination among young adult women in southwest Ethiopia: Application of the health belief model

Background

Breast cancer is still a recognized public health issue in Ethiopia. Despite this, the viewpoints and comprehensions of young women about the situation are unknown. Therefore, this study was carried out to assess the knowledge and perceptions of young adult women in Southwest Ethiopia about breast cancer and breast self-examination (BSE).

Methods

A community-based cross-sectional study was carried out in the Gurage zone, southwest Ethiopia, in 2021. A total of 392 young adult women were randomly selected from both urban and rural strata using a three-stage stratified sampling process. A pretested questionnaire was used to collect the data. For data entry, Epi-data 4.6 with a double-entry approach was used, and for analysis, SPSS 26 was used. Bivariate and multivariable logistic regression analyses were performed to identify variables associated with BSE behavior. A p-value of 0.05 or below was considered statistically significant with a 95% CI.

Results

The respondents’ ages ranged from 20 to 24, with a mean of 21.25 (±1.32) years. Breast cancer and BSE were unknown to more than 80% of the study participants. A large proportion of young adult women had low perceived susceptibility (97.6%), low threat of breast cancer (96%), and low self-efficacy to perform BSE (91.4%). BSE was conducted by 23.1% of the participants occasionally. Being married (AOR = 5.31, 95% CI = 2.19–12.90), having good outcome expectations of BSE (AOR = 2.05, 95% CI = 1.16–3.61), having good BSE knowledge (AOR = 1.22, 95% CI = 1.04–1.45), having high perceived susceptibility (AOR = 1.12, 95% CI = 1.05–1.20), high perceived severity (AOR = 1.78, 95% CI = 1.02–3.09), and having high self-efficacy to do BSE (AOR = 1.05, 95% CI = 1.01–1.09) were all significant predictors of BSE practice.

Conclusions

Young adult women were less concerned about breast cancer and had insufficient knowledge of breast cancer and breast self-examination. They have little knowledge of, confidence in, or experience with BSE. The practice of BSE was associated with increased perceived susceptibility, self-efficacy, severity, outcome expectations, and BSE knowledge. Therefore, these variables should be considered when developing educational interventions for young women.

Extracellular vesicles from young women's breast cancer patients drive increased invasion of non-malignant cells via the Focal Adhesion Kinase pathway: a proteomic approach

Background

Extracellular vesicles (EVs) are small membrane particles that contribute to cancer progression and metastases by transporting biologically significant proteins and nucleic acids. They may also serve as biomarkers of various disease states or important therapeutic targets. Breast cancer EVs have the potential to change the behavior of other cells in their microenvironment. However, the proteomic content of EVs isolated from young women’s breast cancer patients and the mechanisms underlying the influence of EVs on tumor cell behavior have not yet been reported.

Methods

In our current translational studies, we compared the proteomic content of EVs isolated from invasive breast cancer cell lines and plasma samples from young women’s breast cancer (YWBC) patients and age-matched healthy donors using mass spectrometry. We analyzed the functionality of EVs in two dimensional tumor cell invasion assays and the gene expression changes in tumor cells after incubation with EVs.

Results

We found that treatment with EVs from both invasive breast cancer cell lines and plasma of YWBC patients altered the invasive properties of non-invasive breast cancer cells. Proteomics identified differences between EVs from YWBC patients and healthy donors that correlated with their altered function. Further, we identified gene expression changes in non-invasive breast cancer cells after treatment with EVs that implicate the Focal Adhesion Kinase (FAK) signaling pathway as a potential targetable pathway affected by breast cancer-derived EVs.

Conclusions

Our results suggest that the proteome of EVs from breast cancer patients reflects their functionality in tumor motility assays and may help elucidate the role of EVs in breast cancer progression.

I'm Still Mom: Young Mothers Living With Advanced Breast Cancer

PURPOSE

To conduct a detailed content analysis of the theme "I'm still Mom" as described by young women living with advanced breast cancer.

PARTICIPANTS & SETTING

12 young adult women living with advanced breast cancer were recruited from across the United States.

METHODOLOGIC APPROACH

van Manen's hermeneutic phenomenologic method was used to analyze qualitative data from interviews and establish subthemes.

FINDINGS

Women were a mean age of 36 years and had at least one child. The following three subthemes emerged from the overarching theme of I'm still Mom.

IMPLICATIONS FOR NURSING

This study provides a foundation for additional research that can inform family-centered education and interventions to help align the parenting priorities of this cohort of women, as well as optimize their quality of life.

Amenorrhea, fertility preservation, and counseling among young women treated with anthracyclines and taxanes for early-stage breast cancer, a retrospective study

Chemotherapy may cause ovarian toxicity and infertility. Cancer patients are usually overwhelmed, and focus exclusively on cancer diagnosis and may not pay attention to fertility-related issues. In this paper we look at the rate of amenorrhea and fertility counseling among such young patients.Premenopausal women with early-stage breast cancer treated with adjuvant or neoadjuvant chemotherapy were recruited. Amenorrhea was defined as absence of menstruation for ≥12 months after the completion of chemotherapy.A total of 94 patients met the eligibility criteria and were included in this analysis. Median age at diagnosis was 35.7 (range, 22-44) years. Seventy-nine (85.9%) respondents were counseled about amenorrhea and 37 (40.2%) were considering having children. Long-term amenorrhea was reported by 51 (54.3%) patients. The addition of taxanes to anthracyclines, in 2 different regimens, increased the risk of amenorrhea to 69.2% and 66.7% compared to 38.9% with anthracycline-alone, P < .0001. Longer duration of chemotherapy (≥24 weeks) might also be associated with higher rate of amenorrhea (67.7%) compared to 43.4% in those who had shorter duration (<24 weeks), P = .031.The addition of taxanes to anthracycline-based chemotherapy increased the risk of amenorrhea. However, shorter duration of chemotherapy, even with taxanes, may lower such risk. Our study highlights the importance of fertility counseling to improve fertility preservation rates. Given the importance of taxanes, shorter regimens are associated with lower amenorrhea rates and should be preferred over longer ones.

Clinicopathological Characteristics And Treatment Outcomes Of Breast Cancer Among Adolescents And Young Adults In A Developing Country

Purpose

Compared to Western societies, breast cancer diagnosis in our region is usually made at a younger age and at a more advanced stage. Breast cancer in younger patients tends to be more aggressive, and may result in a higher likelihood of long-term treatment-related toxicity and unique psychosocial problems. This study highlights the clinicopathological features and treatment outcomes in this age-group in a developing country like ours.

Methods

Consecutive patients aged 40 years or younger with a pathologically confirmed diagnosis of breast cancer treated and followed up at our institution were included. Medical records and hospital databases were searched for patients' characteristics and treatment outcomes.

Results

A total of 417 patients were enrolled. Median age at diagnosis was 35 (21-40) years. On presentation, 63 (15.1%) patients had metastatic disease, 50 (79.4%) with visceral metastasis. Patients with nonmetastatic disease had poor pathological features, including node-positivity (66.9%), grade III (51.4%), lymphovascular invasion (48.6%) and positive HER2 (31.5%). Breast-conserving surgery was performed on 32.9%, and only 36.5% of women had breast-reconstruction surgery. At a median follow-up of 59 months, 5-year overall survival for the whole group was 72%: 84% for nonmetastatic and 13% for those with metastatic disease. On Cox regression, nodal metastasis (adjusted HR 3.46, 95% CI 1.48-8.10; p=0.004) and grade III disease (HR 1.97, 95% CI 1.14-3.39; p=0.015) were associated with poor outcome.

Conclusion

Adolescents and young Jordanian adults with breast cancer present with more advanced-stage disease and more aggressive pathological features that reflect poorly on treatment outcomes.

Health-related quality of life in Black breast cancer survivors with and without triple-negative breast cancer (TNBC)

PURPOSE

Black women are more likely to develop early-onset (≤50 years) breast cancer (BC) and have the lowest five-year, cause-specific survival rate of any United States (U.S.) racial or ethnic group. These disparities can be attributed partially to the higher rate of triple-negative BC (TNBC) in Blacks. Yet, little is known about health-related quality of life (HRQOL) among Black women with TNBC.

METHODS

Black women with invasive BC ≤ 50 years were recruited via the Florida Cancer Data System as part of a population-based case-only study of etiology and outcomes of early-onset invasive BC. Of 460 consented participants, a subset of 355 self-reported sociodemographic, clinical, and psychosocial variables. Descriptive analyses included participants with known TNBC (n = 85) or non-TNBC (n = 245) disease. Univariable and multivariable analyses were conducted to examine differences in factors associated with HRQOL.

RESULTS

In unadjusted analyses, TNBC participants had significantly lower FACT-B total scores (90.1 ± 27.9) compared to non-TNBC (98.5 ± 27.6) participants (p < 0.05). For the TNBC group, multivariable analyses indicated five individual-level, and three systemic-level factors explain 80% of the response variation in HRQOL. For the non-TNBC group, seven individual-level factors and three systemic-level factors account for 76% of the variation in HRQOL scores.

CONCLUSIONS

Compared to Black women with non-TNBC, TNBC women have worse HRQOL. There are key individual and systemic-level factors that are unique to both groups. Findings can inform future HRQOL interventions to support young Black BC survivors.

Breast cancer treatment costs in younger, privately insured women

PURPOSE

Younger women (under age 45 years) diagnosed with breast cancer often face more aggressive tumors, higher treatment intensity, lower survival rates, and greater financial hardship. The purpose of this study was to estimate breast cancer costs by stage at diagnosis during the first 18 months of treatment for privately insured younger women.

METHODS

We analyzed North Carolina cancer registry data linked to claims data from private insurers from 2003 to 2010. Breast cancer patients were split into two cohorts: a younger and older group aged 21-44 and 45-64 years, respectively. We conducted a cohort study and matched women with and without breast cancer using age, ZIP, and Charlson Comorbidity Index. We calculated mean excess costs between breast cancer and non-breast cancer patients at 6, 12, and 18 months.

RESULTS

For younger women, AJCC 6th edition stage II cancer was the most common at diagnosis (40%), followed by stage I (34%). On the other hand, older women had more stage I (46%) cancer followed by stage II (34%). The excess costs for younger and older women at 12 months were $97,486 (95% confidence interval [CI] $93,631-101,341) and $75,737 (95% CI $73,962-77,512), respectively. Younger breast cancer patients had both a higher prevalence of later-stage disease and higher within-stage costs.

CONCLUSIONS

The study reports high costs of treatment for both younger and older women than a non-cancer comparison group; however, the estimated excess cost was significantly higher for younger women. The financial implications of breast cancer treatment costs for younger women need to be explored in future studies.

Managing psychosocial issues faced by young women with breast cancer at the time of diagnosis and during active treatment

PURPOSE OF REVIEW

This review examines recent literature on the psychosocial needs of and interventions for young women. We focus on the active treatment period given the toxicity of treatment, the incidence of anxiety, and depressive symptoms in these women during treatment. This review summarizes research relevant to addressing their social and emotional concerns.

RECENT FINDINGS

Young women undergoing treatment for breast cancer remain understudied despite unique needs. Psychoeducational interventions help to relieve symptoms and emotional distress during treatment, but effects do not appear to persist over the longer term. In the clinical context, the performance of prognostic-risk prediction models in this population is poor. Surgical decision-making is often driven by fear of recurrence and body image rather than prognosis, and decision aids may help young women to synthesize information to preserve their role in the treatment process.

SUMMARY

First, shared decision-making, second, balancing body image, fear of recurrence, and recommended treatment, and third, palliative care for metastasis are essential research priorities for the clinical setting. In the larger social context, unique family/partner dynamics as well as financial and insurance concerns warrant particular attention in this population.