Ontology highlight
ABSTRACT: Background
Bone-only (BO) metastatic breast cancer (MBC) is considered a more favorable entity than other MBC presentations. However, only few retrospective series and data from selected randomized controlled trials have been reported so far.Methods
Using the French national multicenter ESME (Epidemiological Strategy and Medico Economics) Data Platform, the primary objective of our study was to compare the overall survival (OS) of patients with BO versus non-BO MBC at diagnosis, with adjustment on main prognostic factors using a propensity score. Secondary objectives were to compare first-line progression-free survival (PFS1), describe treatment patterns, and estimate factors associated with OS.Results
Out of 20,095 eligible women, 5041 (22.4%) patients had BO disease [hormone-receptor positive (HR+)/human epidermal growth-factor-receptor-2 negative (HER2-), n?=?4 102/13,229 (31%); HER2+, n?=?644/3909 (16.5%); HR-/HER2-, n?=?295/2 957 (10%)]. BO MBC patients had a better adjusted OS compared with non-BO MBC [52.1?months (95% confidence interval (CI) 50.3-54.1) versus 34.7?months (95% CI 34.0-35.6) respectively]. The 5-year OS rate of BO MBC patients was 43.4% (95% CI 41.7-45.2). They also had a better PFS1 [13.1?months (95% CI 12.6-13.8) versus 8.5?months (95% CI 8.3-8.7), respectively]. This observation could be repeated in all subtypes. BO disease was an independent prognostic factor of OS [hazard ratio 0.68 (95% CI 0.65-0.72), p?ConclusionBO MBC patients have better outcomes compared with non-BO MBC, consistently, through all MBC subtypes.
SUBMITTER: Bertho M
PROVIDER: S-EPMC7841864 | biostudies-literature | 2021
REPOSITORIES: biostudies-literature
Bertho Marion M Fraisse Julien J Patsouris Anne A Cottu Paul P Arnedos Monica M Pérol David D Jaffré Anne A Goncalves Anthony A Lebitasy Marie-Paule MP D'Hondt Véronique V Dalenc Florence F Ferrero Jean-Marc JM Levy Christelle C Dabakuyo Sandrine S Rouzier Roman R Penault-Llorca Frédérique F Uwer Lionel L Eymard Jean-Christophe JC Breton Mathias M Chevrot Michaël M Thureau Sébastien S Petit Thierry T Simon Gaëtane G Frénel Jean-Sébastien JS
Therapeutic advances in medical oncology 20210121
<h4>Background</h4>Bone-only (BO) metastatic breast cancer (MBC) is considered a more favorable entity than other MBC presentations. However, only few retrospective series and data from selected randomized controlled trials have been reported so far.<h4>Methods</h4>Using the French national multicenter ESME (Epidemiological Strategy and Medico Economics) Data Platform, the primary objective of our study was to compare the overall survival (OS) of patients with BO <i>versus</i> non-BO MBC at diag ...[more]