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. 2025 Oct 14;33(11):945.
doi: 10.1007/s00520-025-10041-7.

Longitudinal trajectory of menopausal symptoms in premenopausal women throughout adjuvant chemotherapy: a two-stage analytical approach

Affiliations

Longitudinal trajectory of menopausal symptoms in premenopausal women throughout adjuvant chemotherapy: a two-stage analytical approach

Saim Jung et al. Support Care Cancer. .

Abstract

Purpose: Breast cancer incidence in Asian women peaks in the mid-40 s, when many remain premenopausal. The progression of chemotherapy-induced menopausal symptoms in this population remains underexplored. This study examined their temporal trajectory and clinical significance during adjuvant chemotherapy.

Method: This prospective study assessed breast cancer patients undergoing adjuvant chemotherapy at a tertiary hospital. Participants were classified by menopausal status and treated with AC-D (Adriamycin, Cyclophosphamide, and Docetaxel) or FAC (5-Fluorouracil, Adriamycin, and Cyclophosphamide) regimens. Menopausal symptoms were evaluated using the Menopausal Rating Scale (MRS) at four time points: before chemotherapy (T0), after the first (T1) and fourth (T2) cycles, and one month post-chemotherapy (T3). Symptom trajectories were analyzed using a linear mixed-effects model (LMM) and Generalized Estimating Equations (GEE).

Results: Menopausal symptoms significantly worsened in premenopausal women (AC-D: p < 0.001, FAC: p < 0.001), particularly from T2 onward. Psychological symptoms showed the greatest increase (AC-D: p < 0.001, FAC: p < 0.001), followed by significant worsening of urogenital symptoms (AC-D: p = 0.002, FAC: p = 0.004). Somatic symptoms showed a non-significant increasing trend (AC-D: p = 0.120, FAC: p = 0.101). At T3, 67.9% of AC-D and 59.4% of FAC patients experienced moderate-to-severe symptoms, with severe cases doubling in AC-D (from 16.1% at T0 to 37.5%) and tripling in FAC (6.8% at T0 to 18.9%).

Conclusion: Chemotherapy-induced menopausal symptoms progressively worsened, particularly psychological symptoms. By treatment completion, approximately two-thirds required clinical intervention, underscoring the need for early assessment and proactive management to improve patient outcomes.

Keywords: Adjuvant chemotherapy; Breast cancer; Chemotherapy-induced menopausal symptoms; Menopausal rating scale; Premenopausal.

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Conflict of interest statement

Declarations. Ethics approval and consent to participate: This study was approved by the Biomedical Research Ethics Committee of Seoul National University Hospital (Seoul, South Korea) and was conducted in accordance with the principles of the Declaration of Helsinki. Informed consent was obtained from all individual participants included in the study. Consent for publication: All authors of this study have agreed to submit and publish it in this journal. Conflicts of interest: The authors declare no competing interests.

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