Dewa Putu Satria Juristiasa
Department of General Surgery, Faculty of Medicine, University of Udayana, Sanglah General Hospital, Denpasar, Bali

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Survival Analysis of Patients with Luminal and Non-Luminal Subtype Breast Cancer Receiving Vinorelbine Therapy at Sanglah General Hospital, Denpasar, Bali Dewa Putu Satria Juristiasa; Putu Anda Tusta Adiputra; Dewa Made Sukrama
Indonesian Journal of Cancer Vol 16, No 2 (2022): June
Publisher : National Cancer Center - Dharmais Cancer Hospital

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.915 KB) | DOI: 10.33371/ijoc.v16i2.899

Abstract

Introduction: Breast cancer is the most common type and lethal cancer affecting women. Meanwhile, vinorelbine is one of the chemotherapy agents used for luminal and non-luminal breast cancer. Therefore, this study aims to determine the survival difference between patients with luminal and non-luminal subtype breast cancer treated with vinorelbine.Methods: This study was a retrospective cohort. Women with breast cancer treated with vinorelbine were classified based on estrogen receptor (ER), progesteron receptor (PR), human epidermal growth factor receptor-2 (HER-2) markers, and subtypes. The subjects were followed up to chemotherapy visits with vinorelbine recorded in the medical record. The survival analysis between subtypes was analyzed by the Kaplan-Meier curve.Results: : One hundred women were obtained with a mean age of 52.36 ± 10.45 years. Based on immunohistochemistry, 60% were ER-positive, 53% were PR positive, and 57% were HER-2- positive. Based on the subtype, 67% were luminal, while 33% were non-luminal. All subjects had a mean survival duration of 155.38 days (95% CI 128.05-182.71). The stratified survival analysis showed a significant difference in survival duration based on HER-2 marker and subtype. The subjects with HER-2 positive survived longer with a mean of 203.37 days (190.72–216.02) than those with HER-2 negative with a mean of 90.10 days (65.68-114.53) (p<0.001). In addition, the subjects with the luminal subtype survived longer with a mean of 174.84 (142.72-206.94) than those with non-luminal with a mean of 90.10 (65.68-114.53) (p = 0.04).Conclusion: There was a significant difference in survival duration between women with breast cancer treated with vinorelbine chemotherapy who were HER-2 positive, HER-2 negative, and luminal and non-luminal subtypes.