RecruitingPhase 2Drug trialPrecision Treatment of Recurrent/Metastatic Salivary Gland Carcinoma Guided by Molecular TypingPatients with salivary gland carcinoma were divided into groups according to HER2, NTRK, AR, TROP-2, etc. Patients in different groups were given precision targeted therapy or chemotherapy to evaluate the efficacy (ORR rate) and safety of precision therapy.