TY - JOUR TI - ABREAST: a prospective, real-world study on the effect of nab-paclitaxel treatment on clinical outcomes and quality of life of patients with metastatic breast cancer AU - Koumarianou, A. AU - Makrantonakis, P. AU - Zagouri, F. AU - Papadimitriou, C. AU - Christopoulou, A. AU - Samantas, E. AU - Christodoulou, C. AU - Psyrri, A. AU - Bafaloukos, D. AU - Aravantinos, G. AU - Papakotoulas, P. AU - Baka, S. AU - Andreadis, C. AU - Alexopoulos, A. AU - Bompolaki, I. AU - Kampoli, Κ. AU - Liori, S. AU - Karvounis, K. AU - Ardavanis, A. JO - Breast Cancer Research and Treatment PY - 2020 VL - 182 TODO - 1 SP - 85-96 PB - Springer-Verlag SN - 0167-6806, 1573-7217 TODO - 10.1007/s10549-020-05677-4 TODO - aspartate aminotransferase; paclitaxel; 130-nm albumin-bound paclitaxel; albuminoid; epidermal growth factor receptor 2; ERBB2 protein, human; estrogen receptor; paclitaxel; progesterone receptor, adult; age distribution; aged; Article; backache; bone metastasis; cancer growth; cancer survival; clinical effectiveness; clinical outcome; dizziness; drug safety; dysesthesia; dyspnea; fatigue; febrile neutropenia; female; Functional Assessment of Cancer Therapy Breast Instrument; Greece; heart infarction; human; hypocalcemia; liver failure; liver metastasis; lung metastasis; major clinical study; metastatic breast cancer; multicenter study; multiple cycle treatment; myalgia; nausea; neuritis; neutropenia; overall survival; pleura effusion; priority journal; progression free survival; prospective study; quality of life; quality of life assessment; side effect; treatment outcome; treatment response; vein insufficiency; vestibular disorder; vomiting; breast tumor; clinical trial; follow up; lobular carcinoma; metabolism; middle aged; mortality; Paget nipple disease; pathology; prognosis; survival rate, Aged; Albumins; Breast Neoplasms; Carcinoma, Ductal, Breast; Carcinoma, Lobular; Female; Follow-Up Studies; Humans; Middle Aged; Paclitaxel; Prognosis; Prospective Studies; Quality of Life; Receptor, ErbB-2; Receptors, Estrogen; Receptors, Progesterone; Survival Rate TODO - Purpose: The efficacy of nab-paclitaxel in patients with metastatic breast cancer (MBC) has been demonstrated in randomized clinical trials. However, real-world evidence on effectiveness remains limited. Patients and methods: The primary objective of this multicenter prospective study was to assess the overall response rate (ORR) of patients with MBC treated with nab-paclitaxel. Secondary objectives included progression-free survival (PFS), overall survival (OS) and quality of life, assessed with the Functional Assessment of Cancer Therapy-Breast (FACT-B) instrument. Results: Eligible patients (N = 150; 36% with de novo MBC presentation) with a median age of 64.5 years were enrolled (86% were ER+, 33.3% (50/150) were ≥ 70 years of age and 53% were treated in the third or later line of treatment). A median of 6 cycles were administered but 26% of patients required dose reduction due to toxicity. The ORR was 26.7% [95% confidence interval (CI) 19.6–33.7], the median PFS was 6.2 months (95% CI 5.2–7.3), and the median OS 21.1 months (95% CI 17.2-not estimable). There was no statistical significant difference in the median PFS of patients < and ≥ 70 years of age. The patients’ baseline FACT-B total score remained unchanged. The serious and non-serious adverse event incidence rates were 13% and 48%, respectively. Conclusions: This prospective study provides further evidence on quality of life, efficacy, and safety of nab-paclitaxel in patients with MBC and sheds more light in special subpopulations such as the elderly and those treated beyond the second line. © 2020, Springer Science+Business Media, LLC, part of Springer Nature. ER -