[P66] Poster Session 66　Breast Cancer（Metastatic）

[P66-5] Efficacy of CDK4/6 inhibitor in premenopausal metastatic recurrence of breast cancer at our institution

^○Tsutomu Iwasa¹, Kazuhiko Nakagawa¹, Shiho Takehisa², Kimiko Fujiwara³, Yoshifumi Komoike⁴, Esuther Hirokawa¹, Satomi Watanabe⁵ (1.Department of Medical Oncology, Faculty of Medicine, Kindai University, 2.Department of Nursing, Kindai University, 3.Department of Pharmacy, Kindai University, 4.Department of Endocrine Breast Surgery, Kindai University, 5.Department of Medical Oncology, Kishiwada City Hospital)