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Clinical Trial
. 2024;47(10):484-495.
doi: 10.1159/000540369. Epub 2024 Jul 19.

Comparison of the Efficacy, Safety, and Quality of Life of Pegylated Liposomal Doxorubicin-Cyclophosphamide versus Epirubicin-Cyclophosphamide in Patients with Early-Stage HER2-Negative Breast Cancer: A Prospective, Randomized, Multicenter, Phase II Study

Ling-Ming Tseng  1   2 , Fang Ming Chen  3   4   5 , Shou-Tung Chen  6 , Fiona Tsui-Fen Cheng  7   8 , Tsu-Yi Chao  9 , Ming-Shen Dai  10 , Woei-Yau Kao  11   12 , Ming-Hsin Yeh  13   14 , Dar-Ren Chen  6 , Liang-Chih Liu  15   16 , Hewi Chung Wang  15 , Hong-Tai Chang  17 , Being Whey Wang  18 , Jyh-Cherng Yu  19 , Shin Cheh Chen  20 , Guo-Shiou Liao  19 , Ming-Feng Hou  21
Affiliations
Clinical Trial

Comparison of the Efficacy, Safety, and Quality of Life of Pegylated Liposomal Doxorubicin-Cyclophosphamide versus Epirubicin-Cyclophosphamide in Patients with Early-Stage HER2-Negative Breast Cancer: A Prospective, Randomized, Multicenter, Phase II Study

Ling-Ming Tseng et al. Oncol Res Treat. 2024.

Abstract

Introduction: This multicenter, phase II randomized, non-inferiority study reports from the first prospective two-armed randomized control trial that compared the efficacy, safety, and quality of life (QoL) of pegylated liposomal doxorubicin (PLD)-based and epirubicin-based as adjuvant chemotherapy for stage I-II human epidermal growth factor receptor 2 (HER2)-negative breast cancer.

Methods: Patients with stage I/II HER2-negative breast cancer received PLD (37.5 mg/m2, Q3W, 5 cycles, LC arm) plus cyclophosphamide (600 mg/m2) or epirubicin (90 mg/m2, Q3W, 4 cycles, EC arm) plus cyclophosphamide (600 mg/m2). Randomization was stratified by lymph node and ER and PR status. The primary endpoint was disease-free survival (DFS), and secondary endpoints were overall survival (OS), safety profiles, and QoL. QoL was assessed using the EORTC-QLQ-C30 and QLQ-BR23 questionnaires.

Results: A total of 256 patients were assigned to LC (n = 148) and EC (n = 108). There was no difference in 5-year DFS and OS rate between the two groups. LC-based adjuvant regimens had significantly less alopecia and low-grade 3-4 hematologic adverse events (AEs). Significantly improved QoL was observed in the LC arm during and after treatment for symptoms including fatigue, nausea and vomiting, and systemic therapy side effects.

Conclusion: Comparable efficacy and safety between adjuvant PLD and epirubicin for stage I-II HER2-negative breast cancer was observed. There was no difference in the 5-year DFS and OS rates between the two treatment arms. However, low-grade 3-4 AEs and a trend of favorable QoL symptom scales were observed in the LC arm, suggesting that PLD-containing regimen could become a new standard treatment for early-stage HER2-negative breast cancer patients.

Keywords: Disease-free survival; Epirubicin; HER2-negative breast cancer; Overall survival; Pegylated liposomal doxorubicin; Quality of life.

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