PD-1/PD-L1 inhibitors combined with chemotherapy or as monotherapy versus chemotherapy alone or observation in triple-negative breast cancer: a systematic review and updated meta-analysis incorporating long-term survival data
BackgroundMultiple RCTs have established PD-1/PD-L1 inhibitors as standard in triple-negative breast cancer (TNBC), but prior meta-analyses lacked complete setting coverage, mature long-term survival data, and a quantification of chemotherapy-backbone …