Does race affect outcomes in triple negative breast cancer?

Jasgit C. Sachdev, Saira Ahmed, Muhammad M. Mirza, Aamer Farooq, Lori Kronish, Mohammad Jahanzeb

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Background: There is discordance among studies assessing the impact of race on outcome of patients with Triple Negative Breast Cancer (TNBC). We assessed survival outcomes for African American (AA) versus Caucasian (CA) women with TNBC treated at an urban cancer center in Memphis, TN with a predominant AA patient population. Methods: Patients with Stage I-III TNBC were identified from our breast database. Event free survival (EFS) and Breast cancer specific survival (BCSS) were the primary outcome measures. Cox proportional hazards models were fitted for EFS and BCSS. Results: Of the 124 patients, 71% were AA. No significant association between race and stage (P = 0.21) or menopausal status (P = 0.15) was observed. Median age at diagnosis was significantly lower for AA versus CA women (49.5 vs. 55 years, P = 0.024). 92% of the patients received standard neo/adjuvant chemotherapy, with no significant difference in duration and type of chemotherapy between the races. With a median follow up of 23 months, 28% of AA vs. 19% of CA women had an event (P = 0.37). 3 year EFS and BCSS trended favorably towards CA race (77% vs. 64%, log rank P = 0.20 and 92% vs. 76%, P = 0.13 respectively) with a similar trend noted on multiple variable modeling (EFS: HR 0.62, P = 0.29; BCSS: HR 0.36, P = 0.18). AA women ≥ 50 years at diagnosis had a significantly worse BCSS than the CA women in that age group (P = 0.012). Conclusion: Older AA women with TNBC have a significantly worse breast cancer specific survival than their CA counterparts. Overall, there is a trend towards lower survival for AA women compared to Caucasians despite uniformity of tumor phenotype and treatment. The high early event rate, irrespective of race, underscores the need for effective therapies for women with TNBC.

Original languageEnglish (US)
Pages (from-to)23-33
Number of pages11
JournalBreast Cancer: Basic and Clinical Research
Volume4
Issue number1
DOIs
StatePublished - Jan 1 2010
Externally publishedYes

Keywords

  • Biology
  • Racial differences
  • Survival
  • Triple negative
  • Uniform treatment

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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