Neoadjuvant TQB2102 (Bispecific HER2-Directed ADC) Produces High Pathologic Complete Response Rates in Early and Locally Advanced HER2-Positive Breast Cancer

Neoadjuvant TQB2102 (Bispecific HER2-Directed ADC) Produces High Pathologic Complete Response Rates in Early and Locally Advanced HER2-Positive Breast Cancer

A randomized phase II trial of the bispecific HER2-directed ADC TQB2102 (n=104) showed robust total pathologic complete response rates (tpCR 57.7–76.9% across cohorts) with manageable grade ≥3 toxicity and no treatment‑related deaths, supporting further comparative evaluation.