Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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Eight Year Survival Analysis of Patients with Triple Negative Breast Cancer in India

  • Doval, Dinesh Chandra (Department of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Suresh, P (Department of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Sinha, Rupal (Department of Research, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Azam, Saud (Department of Research, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Batra, Ullas (Department of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Talwar, Vineet (Department of Medical Oncology, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Kumar, Kapil (Department of Surgical Oncology, Rajiv Gandhi Cancer Institute & Research Centre) ;
  • Mehta, Anurag (Department of Laboratory Services, Rajiv Gandhi Cancer Institute & Research Centre)
  • Published : 2016.06.01
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Abstract

Background: Triple-negative breast cancer (TNBC) often presents as an interval cancer with short survival upon metastasis and thus represents an important clinical challenge. The present study investigated the clinicopathologic characteristics and long term survival outcome of early and locally advanced TNBC. Materials and Methods: Medical records were reviewed retrospectively for 148 consecutive confirmed cases of TNBC treated in a single unit at our centre. Demographic profile, tumor type, histopathology details, treatment and follow-up information was recorded and immunohistochemistry was performed. Results: Age group >50 years was associated with tumors of clinical stage 3 (53.8%), pathological stage 3 (46.2%), pathological grade 3 (45.7%), presence of extracapsular extension (ECE, 48.5%) and lymphovascular invasion (LVI, 64.9%). Locally advanced breast cancers (LABCs) were characterized by pathological stage 3 (96.2%), presence of ECE (100%) and absence of LVI (46.7%) as compared to early breast cancers (EBCs) which had higher incidence of lower stage tumors (100%), absence of ECE (82%) and presence of LVI (91.9%; p-value <0.001. Better relapse free survival was observed in patients with no axillary involvement (69%; p-value <0.001) and absence of ECE (64%; p-value <0.001). Improved overall survival was seen in patients with EBC (90%; p-value 0.008), clear axilla (86%; p-value <0.001), absence of ECE (87%; p-value <0.001) and negative lymph nodes (90%; p-value 0.006). Conclusions: TNBCs are aggressive tumors which show poor long term survival. Patients with TNBC benefit from chemotherapy, thus better and less toxic treatment options are needed. Identification of newer targets and development of targeted therapies are the need of the hour.

Keywords

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