The clinical use of circulating tumor cells (CTCs) enumeration for staging of metastatic breast cancer (MBC): International expert consensus paper

Massimo Cristofanilli, Jean-Yves Pierga, James Reuben, Alfred Rademaker, Andrew A Davis, Dieter J Peeters, Tanja Fehm, Franco Nolé, Rafael Gisbert-Criado, Dimitrios Mavroudis, Salvatore Grisanti, Mario Giuliano, Jose A Garcia-Saenz, Justin Stebbing, Carlos Caldas, Paola Gazzaniga, Luis Manso, Rita Zamarchi, Angela Fernandez de Lascoiti, Leticia De Mattos-ArrudaMichail Ignatiadis, Luc Cabel, Steven J van Laere, Franziska Meier-Stiegen, Maria-Teresa Sandri, Jose Vidal-Martinez, Eleni Politaki, Francesca Consoli, Daniele Generali, Maria Rosa Cappelletti, Eduardo Diaz-Rubio, Jonathan Krell, Sarah-Jane Dawson, Cristina Raimondi, Annemie Rutten, Wolfgang Janni, Elisabetta Munzone, Vicente Carañana, Sofia Agelaki, Camillo Almici, Luc Dirix, Erich-Franz Solomayer, Laura Zorzino, Lauren Darrigues, Jorge S Reis-Filho, Lorenzo Gerratana, Stefan Michiels, François-Clément Bidard, Klaus Pantel

Research output: Contribution to journalArticlepeer-review

Abstract

BACKGROUND: The heterogeneity of metastatic breast cancer (MBC) necessitates novel biomarkers allowing stratification of patients for treatment selection and drug development. We propose to use the prognostic utility of circulating tumor cells (CTCs) for stratification of patients with stage IV disease.METHODS: In a retrospective, pooled analysis of individual patient data from 18 cohorts, including 2436 MBC patients, a CTC threshold of 5 cells per 7.5 ml was used for stratification based on molecular subtypes, disease location, and prior treatments. Patients with ≥ 5 CTCs were classified as Stage IVaggressive, those with <5 CTCs as Stage IVindolent. Survival was analyzed using Kaplan-Meier curves and the log rank test.RESULTS: For all patients, Stage IVindolent patients had longer median overall survival than those with Stage IVaggressive (36.3 months vs. 16.0 months, P 
Original languageEnglish
Pages (from-to)39-45
Number of pages7
JournalCritical Reviews in Oncology/Hematology
Volume134
DOIs
Publication statusPublished - Feb 2019

Keywords

  • Biomarkers, Tumor/analysis
  • Breast Neoplasms/pathology
  • Consensus
  • Expert Testimony
  • Female
  • Humans
  • International Agencies
  • Neoplasm Staging/standards
  • Neoplastic Cells, Circulating/pathology
  • Patient Selection

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