Establishment and Clinical Transformation of ADC Drug Efficacy Evaluation System for Breast Cancer Based on Molecular Imaging

Inclusion criteria

• Age 18-75 years old, male or female, ECOG score 0 or 1 points (see the table in Annex 2 for the score table);
• Blood routine and liver and kidney function meet the following criteria: Blood routine: WBC ≥ 4.0×109 L or neutrophil ≥1.5×109 /L, PLT ≥ 100×109/L, Hb≥ 90 g/L; PT or APTT ≤ 1.5 ULN; Liver and kidney function: T-Bil ≤ 1.5×ULT(upper limit of normal), ALT and AST≤ 2.5 ULN or ≤ 5×ULT(subjects with liver metastasis), ALP ≤ 2.5 ULN(ALP ≤ 4.5 ULN if there is bone metastasis or liver metastasis); BUN ≤ 1.5×ULT, SCr ≤ 1.5×ULT;
• Patients with confirmed or suspected breast cancer;
• Expected survival ≥12 weeks;
• Good follow-up compliance;
• Women of childbearing age (15 to 49 years old) must undergo a pregnancy test within 7 days before the start of the test and the result is negative; Fertile men and women must consent to the use of effective contraception to ensure pregnancy during the study period and within 3 months of the examination;
• Subject patients can fully understand and voluntarily participate in this experiment, and sign informed consent.

Exclusion criteria

• Severe abnormal liver and kidney function;
• Pregnant, pregnant and lactating women;
• Can not lie flat for half an hour;
• Unable to obtain informed consent;
• Suffering from claustrophobia or other mental illness;
• People who are known to be allergic to the investigational drug or its excipients in the investigational therapy;
• Other conditions deemed unsuitable for participation in the trial by the investigator.