Analysis of the association of HER-2 low carcinomas and PAM50 assay in hormone receptor positive early-stage breast cancer

Bibliographic Details
Title: Analysis of the association of HER-2 low carcinomas and PAM50 assay in hormone receptor positive early-stage breast cancer
Authors: Santiago Terán, Manuel Alva, Pablo Tolosa, Macarena Rey-Cárdenas, Ainhoa Madariaga, Laura Lema, Yolanda Ruano, Luis Manso, Eva Ciruelos, Rodrigo Sánchez-Bayona
Source: Breast, Vol 71, Iss , Pp 42-46 (2023)
Publisher Information: Elsevier, 2023.
Publication Year: 2023
Collection: LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Subject Terms: Breast cancer, HER2-Low, PAM50, Prosigna, HER2-Zero, HER2, Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282
More Details: Background: HER2-low has emerged as a new predictive biomarker in metastatic breast cancer. However, its prognostic value in early-stage carcinomas needs to be revisited. We aimed to evaluate the association of HER2-low carcinomas with PAM50 risk groups combined with clinicopathological variables in early breast cancer. Methods: We conducted a retrospective analysis of 332 patients with early-stage breast cancer that underwent PAM50 signature analysis between 2015 and 2021at Hospital Universitario 12 de Octubre (Madrid, Spain). Clinical and pathological variables were collected from medical records. After adjusting for potential confounders, we estimated Odds Ratio (OR) and 95% confidence interval for high-risk PAM50 subgroup, comparing HER2-low versus HER2-zero carcinomas by multivariable logistic regression. P values below 0.05 were deemed statistically significant. Results: 192 (57%) patients were classified as HER2-low carcinomas. Median follow-up was 34 months. Adjusted OR for high-risk PAM50 when comparing HER2-low versus HER2-zero carcinomas was 1.31 (95% CI: 0.75–2.30, p = 0.33). The multivariable model detected significant associations for Ki-67% (≥20% vs.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1532-3080
Relation: http://www.sciencedirect.com/science/article/pii/S0960977623005325; https://doaj.org/toc/1532-3080
DOI: 10.1016/j.breast.2023.07.009
Access URL: https://doaj.org/article/45206221d7664a38bf63504773e67ed3
Accession Number: edsdoj.45206221d7664a38bf63504773e67ed3
Database: Directory of Open Access Journals
More Details
ISSN:15323080
DOI:10.1016/j.breast.2023.07.009
Published in:Breast
Language:English