Faculty, Staff and Student Publications
Publication Date
3-4-2022
Journal
Cancers
DOI
10.3390/cancers14051323
PMID
35267631
PMCID
PMC8909018
PubMedCentral® Posted Date
3-4-2022
PubMedCentral® Full Text Version
Post-print
Abstract
High stromal tumor-infiltrating lymphocytes (sTILs) are associated with an improved pathologic complete response (pCR) and survival in triple-negative breast cancer (TNBC). We hypothesized that high baseline sTILs would have a favorable prognostic impact in TNBC patients without a pCR after neoadjuvant chemotherapy (NACT). In this prospective NACT study, pretreatment biopsies from 318 patients with early-stage TNBC were evaluated for sTILs. Recursive partitioning analysis (RPA) was applied to search for the sTIL cutoff best associated with a pCR. With ≥20% sTILs identified as the optimal cutoff, 33% patients had high sTILs (pCR rate 64%) and 67% had low sTILs (pCR rate 29%). Patients were stratified according to the sTIL cutoff (low vs. high) and response to NACT (pCR vs. residual disease (RD)). The primary endpoint was event-free survival (EFS), with hazard ratios calculated using the Cox proportional hazards regression model and the 3-year restricted mean survival time (RMST) as primary measures. Within the high-sTIL group, EFS was better in patients with a pCR compared with those with RD (HR 0.05; 95% CI 0.01-0.39;
Published Open-Access
yes
Recommended Citation
Abuhadra, Nour; Sun, Ryan; Litton, Jennifer K; et al., "Prognostic Impact of High Baseline Stromal Tumor-Infiltrating Lymphocytes in the Absence of Pathologic Complete Response in Early-Stage Triple-Negative Breast Cancer" (2022). Faculty, Staff and Student Publications. 2540.
https://digitalcommons.library.tmc.edu/uthgsbs_docs/2540
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