Safety, Efficacy, and Pharmacokinetics of SHR-A1811, a Human Epidermal Growth Factor Receptor 2–Directed Antibody-Drug Conjugate, in Human Epidermal Growth Factor Receptor 2–Expressing or Mutated Advanced Solid Tumors: A Global Phase I Trial

SHR-A1811 exhibited acceptable tolerability, promising antitumor activity, and a favorable pharmacokinetic profile in heavily pretreated advanced solid tumors. The recommended phase II dose of 4.8 or 6.4 mg/kg was selected for various tumor types.