Advances in Breast Cancer Research: Immunological, Pathological, and Pharmacological Perspectives for Improving Patient Outcomes.

Int J Mol Sci · 2026 · PMC12940920 · PMID 41752040

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did not reach statistical significanceno p-value reported

While the OS improvement in the overall population did not reach statistical significance, exploratory analyses showed a clinically meaningful median OS advantage in PD-L1-positive patients (25.4 vs. 17.9 months; HR 0.67) [ 38 , 39 , 72 ].

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