Inflammatory Breast Cancer at the Extremes of Age

Taiwo Adesoye, Oluwatowo Babayemi, Lauren M. Postlewait, Sarah M. DeSnyder, Susie X. Sun, Wendy A. Woodward, Naoto T. Ueno, Kelly K. Hunt, Anthony Lucci, Mediget Teshome

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Background: Inflammatory breast cancer (IBC) is a rare breast malignancy with poor outcomes compared with non-IBC. Age-related differences in tumor biology, treatment, and clinical outcomes have been described in non-IBC. This study evaluated age-related differences in IBC. Methods: From an institutional prospective database, patients with an IBC diagnosed from 2010 to 2019 were identified. Age was categorized as 40 years or younger, 41 to 64 years, and 65 years or older. Demographics, clinicopathologic features, and treatment received were compared. Recurrence and survival outcomes were analyzed using the log-rank test and the Cox proportional hazards model. Results: Of 523 IBC patients, 113 (21.6%) were age 40 years or younger, and 72 (13.8%) were age 65 years or older. The groups did not differ statistically by race/ethnicity, N stage, clinical stage, or tumor subtype. The younger patients included a higher proportion of Hispanic and Asian patients, triple-negative breast cancer (TNBC), and clinical N2/N3. Trimodality therapy was received by 92% of the stage 3 patients, with no difference in pathologic complete response (pCR) by age (23.3% vs 28.6%; p = 0.46). During a median follow-up period of 40 months, 17% of the patients experienced locoregional recurrence and 42.8% had distant metastasis. No difference in 3-year recurrence-free survival (57.9% vs 42.6% vs 54%; p = 0.42, log rank) or overall survival (OS) (75.6% vs 77.1% vs 64.4%; p = 0.31, log rank) by age was observed, and no difference in OS by age in de novo stage 4 disease was observed. In the multivariate analysis, worse OS was associated with TNBC (hazard ratio [HR], 1.99, 95% confidence interval [CI], 1.31–3.05) and no pCR (HR, 4.45; 95% CI, 2.16–9.18). Conclusion: No significant differences were observed in demographics, treatment patterns, or clinical outcomes for IBC patients age 40 years or younger compared with those age 65 years or older treated by a specialized multidisciplinary team. These findings do not support age-related treatment de-escalation in IBC.

Original languageEnglish (US)
Pages (from-to)5626-5634
Number of pages9
JournalAnnals of surgical oncology
Volume28
Issue number10
DOIs
StatePublished - Oct 2021

ASJC Scopus subject areas

  • Surgery
  • Oncology

Fingerprint

Dive into the research topics of 'Inflammatory Breast Cancer at the Extremes of Age'. Together they form a unique fingerprint.

Cite this