A Randomized Study of JS004 and Toripalimab Combined With Chemotherapy vs Toripalimab Combined With Chemotherapy vs Chemotherapy Alone as Neoadjuvant Therapy for Stage II-III Triple-negative Breast Cancer (TNBC).

The objective of this study is to evaluate the efficacy and safety of chemotherapy plus toripalimab, with or without JS004,as neoadjuvant therapy for patients with triple-negative breast cancer (TNBC). TNBC patients were randomly assigned in a 2:2:1 ratio to receive either JS004 plus toripalimab plus chemotherapy, toripalimab plus chemotherapy, or chemotherapy alone.Surgery will be performed within 5 weeks after the last dose of neoadjuvant treatment.