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Antibody-drug conjugates (ADCs) are a class of targeted biological agents that link cytotoxic drugs to monoclonal antibodies through linkers. The monoclonal antibody targets tumor cells and transports small-molecule cytotoxic drugs for specific delivery and minimal off-target side effects. September 30, 2022, 14 anti-tumor ADC drugs have been approved for marketing in the world, and four ADCs have been approved in China. With the improvement of the clinical accessibility of ADC drugs, clinicians urgently need to understand the molecular characteristics and mechanisms of ADCs, and clarify the indications for rational use of drugs. Patients' survival mainly depends on the appropriate dose and course of treatment and also on proper management of adverse reactions. In view of this, on the basis of the "Expert Consensus on the Clinical Application of Antibody-drug Conjugates for the Treatment of Malignant Tumors (2020 edition)" , Professional Committee on Clinical Research of Oncology Drugs, Chinese Anti-Cancer Association fully combines the existing clinical research evidence and the feasibility of current ADC drugs in China to update the consensus content. This consensus aims to provide a systematic overview of ADC drugs, so as to provide practical and effective suggestions and references for clinicians to apply and manage ADC drugs more accurately.

Antibody-drug conjugate (ADC) is a type of targeted biological agent which connect cytotoxic drug to monoclonal antibody by a connector head, which enables monoclonal antibody acted as a carrier to efficiently transport small molecular cytotoxic drugs to target tumor cells. It is very important for clinicians to have an in-depth understanding of the molecular characteristics and mechanism of ADC drugs, rationally choose the appropriate dose, course of treatment and manage adverse reactions according to the indications during the clinical application of ADC drugs, which may even affect the survival of patients. Therefore, the consensus aims to conduct a systematic overview of commercially available ADC drugs, provide effective recommendations and references for clinicians to better apply and manage ADC drugs.