期刊
JOURNAL OF CLINICAL ONCOLOGY
卷 37, 期 7, 页码 559-+出版社
AMER SOC CLINICAL ONCOLOGY
DOI: 10.1200/JCO.18.01010
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资金
- Ligue Nationale Contre le Cancer
- International Breast Cancer Study Group
- US National Institutes of Health [CA75362]
- ANR
- CGI (RHU MyPROBE)
- CGI [ANR-17-RHUS-0008]
- Cancer Council Victoria John Colebatch Fellowship
- Breast Cancer Research Foundation, NY
- National Breast Cancer Foundation of Australia
- Agence Nationale de la Recherche (ANR) [ANR-17-RHUS-0008] Funding Source: Agence Nationale de la Recherche (ANR)
PurposeThe aim of the current study was to conduct a pooled analysis of studies that have investigated the prognostic value of tumor-infiltrating lymphocytes (TILs) in early-stage triple negative breast cancer (TNBC).MethodsParticipating studies had evaluated the percentage infiltration of stromally located TILs (sTILs) that were quantified in the same manner in patient diagnostic samples of early-stage TNBC treated with anthracycline-based chemotherapy with or without taxanes. Cox proportional hazards regression models stratified by trial were used for invasive disease-free survival (iDFS; primary end point), distant disease-free survival (D-DFS), and overall survival (OS), fitting sTILs as a continuous variable adjusted for clinicopathologic factors.ResultsWe collected individual data from 2,148 patients from nine studies. Average age was 50 years (range, 22 to 85 years), and 33% of patients were node negative. The average value of sTILs was 23% (standard deviation, 20%), and 77% of patients had 1% or more sTILs. sTILs were significantly lower with older age (P = .001), larger tumor size (P = .01), more nodal involvement (P = .02), and lower histologic grade (P = .001). A total of 736 iDFS and 548 D-DFS events and 533 deaths were observed. In the multivariable model, sTILs added significant independent prognostic information for all end points (likelihood ratio (2), 48.9 iDFS; P < .001; (2), 55.8 D-DFS; P < .001; (2), 48.5 OS; P < .001). Each 10% increment in sTILs corresponded to an iDFS hazard ratio of 0.87 (95% CI, 0.83 to 0.91) for iDFS, 0.83 (95% CI, 0.79 to 0.88) for D-DFS, and 0.84 (95% CI, 0.79 to 0.89) for OS. In node-negative patients with sTILs 30%, 3-year iDFS was 92% (95% CI, 89% to 98%), D-DFS was 97% (95% CI, 95% to 99%), and OS was 99% (95% CI, 97% to 100%).ConclusionThis pooled data analysis confirms the strong prognostic role of sTILs in early-stage TNBC and excellent survival of patients with high sTILs after adjuvant chemotherapy and supports the integration of sTILs in a clinicopathologic prognostic model for patients with TNBC. This model can be found at www.tilsinbreastcancer.org.
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