Factors associated with worsening sexual function during adjuvant endocrine therapy in a prospective clinic-based cohort of women with early-stage breast cancer

Ongoing Symptoms and Concerns Experienced by Low-Risk Breast Cancer Survivors Following Active Treatment

INTRODUCTION

Little is known about the symptom burden of breast cancer survivors with early-stage disease. Many studies have focused on symptoms of patients who are undergoing or recently completed systemic therapy. However, with the increased use of Oncotype DX, the proportion of early-stage hormone receptor-positive patients who undergo chemotherapy has declined, making existing studies of the symptom experience less useful for these patients.

OBJECTIVE

The aim of this study was to assess symptom burden for early-stage breast cancer survivors.

METHODS

Eligible survivors had stage I-II, estrogen receptor (ER)- or progesterone receptor (PR)-positive and HER2neu-negative breast cancer, did not receive chemotherapy, were 6 months-5 years post-diagnosis, and were cancer-free. Survivors were enrolled at the University of Wisconsin Breast Center follow-up visits and were emailed a link to a patient-reported outcomes (PRO) survey. Survey domains were informed by American Cancer Society/American Society of Clinical Oncology (ACS/ASCO) survivorship guidelines and survivor/provider stakeholders. The prevalence of clinically significant symptoms are reported.

RESULTS

Overall, 98 patients participated. On average, participants were 61.3 years of age (standard deviation [SD] 11.5) and 2.5 years post-diagnosis (SD 1.2); 71.3% underwent breast-conserving surgery. The average item-level missingness rate was low (2.0%). Most survivors (86.2%) experienced symptoms (38.8% reporting one to two symptoms; 47.9% reporting more than three symptoms).

CONCLUSIONS

Early-stage breast cancer survivors report a high symptom burden. Given nearly 50% of survivors report more than three symptoms, many topics may not be discussed or addressed during time-limited follow-up visits. Some symptoms, such as sexual health, may be less feasible to address in-clinic given their complex/sensitive nature. Use of PROs allows for a comprehensive evaluation and identification of unrecognized needs, representing an opportunity to improve survivorship care.

Sexual dysfunction in women with breast cancer: a systematic review

PURPOSE

This systematic review aims to assess the prevalence, incidence, and risk factors for sexual dysfunction (SdF) in women with breast cancer (BC).

METHODS

A systematic search was conducted in MEDLINE (PubMed), PsycINFO, Web of Science, and CINAHL to identity longitudinal, observational studies assessing SdF in women with BC. Data extraction followed PRISMA guidelines. The Joanna Briggs Institute checklist was used to assess methodological quality. Results were narratively synthesised.

RESULTS

A total of 16 studies involving 4058 women met the inclusion criteria. Overall, the reported prevalence of SdF ranged from 17.5% before BC diagnosis to 86% after 6 months of hormone therapy. Only one study reported incidence data. The six most commonly studied SdF domains were desire, arousal, lubrication, orgasm, satisfaction, and dyspareunia. A significant number of risk factors associated with different dimensions of SdF were identified.

CONCLUSION

SdF is highly prevalent in women with BC, particularly in the first year after diagnosis and treatment. These findings strongly suggest that SdF should be routinely assessed as part of survivorship care protocols. Due to the scant data on incidence rates and the wide variability in reported risk factors, significant gaps remain in our understanding of the onset and progression of SdF in patients with BC. Well-designed cohort studies are needed to better establish the incidence and aetiology of SdF in this patient population.

Long-term patient-reported outcomes from monarchE: Abemaciclib plus endocrine therapy as adjuvant therapy for HR+, HER2-, node-positive, high-risk, early breast cancer

BACKGROUND

In monarchE, abemaciclib demonstrated a sustained benefit in invasive disease-free survival and a tolerable safety profile at 42-months median follow-up. With no expected disease-related symptoms, therapies in the adjuvant setting should preserve quality of life (QoL). With all patients off abemaciclib, we report updated patient-reported outcomes (PROs) for the full 2-year treatment period and follow-up.

METHODS

Patients completed PROs including FACT-B, FACT-ES, and FACIT-Fatigue at baseline, 3, 6, 12, 18, and 24 months during treatment, and 1, 6, and 12 months after treatment discontinuation. Mixed effects repeated measures model estimated changes from baseline within and between arms for QoL scales and individual items. Meaningful changes were prespecified and no statistical testing was performed. Frequencies of responses to items associated with relevant adverse events and treatment bother were summarized.

RESULTS

At baseline, completion rates for PRO instruments were >96 %. Mean changes from baseline for all QoL scales were numerically similar within and between arms (ie, less than prespecified thresholds). The same was observed for all individual items, except diarrhea. Within abemaciclib arm, meaningful differences for diarrhea were observed at 3 and 6 months (mean increases of 1.19 and 1.03 points on 5-point scale, respectively). During treatment, most patients in both arms (69-78 %) reported being bothered "a little bit" or "not at all" by side effects. Overall, patterns for fatigue were similar between arms. During post-treatment follow-up, PROs in both arms were similar to baseline.

CONCLUSION

PRO findings confirm a tolerable and reversible toxicity profile for abemaciclib. QoL was preserved with the addition of adjuvant abemaciclib to endocrine therapy, supporting its use in patients with HR+, HER2-, high-risk early breast cancer.