Bauer ECA, Schochter F, Widschwendter P, Degregorio A, Andergassen U, Friedl TWP, Fasching P, Fehm T, Schneeweiss A, Beckmann M, Pantel K, Janni W, Rack B, Scholz C (2018)
Publication Type: Journal article
Publication year: 2018
Book Volume: 171
Pages Range: 571-580
Journal Issue: 3
DOI: 10.1007/s10549-018-4856-1
Several studies have provided evidence on the prognostic relevance of circulating tumor cells (CTCs) detected before and after chemotherapy regarding overall survival (OS) and progression-free survival (PFS) in early breast cancer (EBC). We provide data on the prevalence of CTCs 2 and 5 years after primary diagnosis in a cohort of patients with EBC.The SUCCESS study is a multicenter, prospective, randomized trial comparing PFS in primary breast cancer patients undergoing one of two adjuvant chemotherapy regimens followed by 2 versus 5 years of treatment with zoledronate. CTCs from patients without signs of breast cancer recurrence were analyzed in peripheral blood using the FDA cleared CellSearch® System (Veridex, USA) 2 and 5 years after primary diagnosis.CTCs were detected at 2 and 5 years after primary diagnosis in 96 (16.7%) and 47 (8.2%) of the 574 patients, respectively. There were no associations between CTC status and patient and tumor characteristics or treatment regimens. In 442 (77.0%) patients, no CTCs were detected at either of the two time points, and in 11 patients (1.9%), CTCs were found at both 2 and 5 years after primary diagnosis. In 85 (14.8%) patients, CTCs were present 2 years after primary diagnosis but not after 5 years, while 36 (6.3%) patients had CTCs in their blood only at the 5-year follow-up.In patients with EBC, CTCs can be detected even 5 years after primary diagnosis without clinical signs of disease recurrence.
APA:
Bauer, E.C.A., Schochter, F., Widschwendter, P., Degregorio, A., Andergassen, U., Friedl, T.W.P.,... Scholz, C. (2018). Prevalence of circulating tumor cells in early breast cancer patients 2 and 5 years after adjuvant treatment. Breast Cancer Research and Treatment, 171(3), 571-580. https://doi.org/10.1007/s10549-018-4856-1
MLA:
Bauer, Emanuel C. A., et al. "Prevalence of circulating tumor cells in early breast cancer patients 2 and 5 years after adjuvant treatment." Breast Cancer Research and Treatment 171.3 (2018): 571-580.
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