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Abstract Background: Eyebrow and eyelash loss, known as madarosis, can occur secondary to breast cancer-directed therapy. However, the incidence and predictors of this phenomenon are not well-known. The purpose of this study is to ascertain the proportion of breast cancer survivors who experience madarosis, potential contributing factors to eyebrow and eyelash loss, and associations between this symptom and mental health. Methods: Breast cancer survivors were invited to participate in an ongoing longitudinal cohort study, the Mayo Clinic Breast Disease Registry (MCBDR), after having been seen at least once for breast cancer at Mayo Clinic in Rochester, MN. Those who consented were mailed a survey approximately one year after diagnosis. Respondents were asked to report their degree of eyebrow and eyelash loss experienced since their diagnosis on a 4-point scale of “no loss” (0) to “complete loss” (3). The proportions of participants who reported eyebrow and eyelash loss were evaluated overall and according to treatment type by descriptive statistics. Relationships between eyebrow and eyelash loss and mental health scores collected using the PROMIS-10 project scales (ranging from 0-20), with the poorest mental health indicated by scores under 8, were explored. Results: 838 registry participants responded to the year 1 survey’s alopecia questions. The median age of breast cancer survivors was 59.4 years (range 22-100 years). The majority were diagnosed at stage I-II (69%). 315 (37%) had received chemotherapy (+/- endocrine therapy), 415 (50%) had received endocrine therapy only, and 108 (13%) had received neither. Nearly half reported eyebrow loss (49%) or eyelash loss (49%). Eyebrow loss was reported by 89% of chemotherapy recipients, 27% of endocrine therapy only recipients, and 19% of those not treated with chemotherapy or endocrine therapy. 102 (32%) of those with chemotherapy-associated eyebrow loss reported that it was complete. Eyelash loss was reported by 274 (87%) of chemotherapy recipients, 112 (27%) of endocrine therapy only recipients, and 23 (21%) of those who received neither. Although no formal statistical testing was performed, there was a numerically higher proportion of patients with eyebrow and/or eyelash loss who reported poor mental health. Conclusions: Madarosis is a bothersome symptom in cancer survivors, particularly after chemotherapy. Future investigation into the incidence, predictors, and treatment of anti-neoplastic medication-related madarosis is needed. Table. Global mental health scores on PROMIS scale for eyebrow and eyelash loss Citation Format: Sarah Premji, Kathryn Ruddy, Nicole Larson, Charles Loprinzi, Brittany Dulmage, Maryam Lustberg, Fergus Couch, Janet Olson, Elizabeth Cathcart-Rake. Eyebrow and eyelash loss in breast cancer survivors abstract. In: Proceedings of the 2023 San Antonio Breast Cancer Symposium; 2023 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2024;84(9 Suppl):Abstract nr PO5-12-10.
Premji et al. (Thu,) studied this question.