A Study of CSCJC3456 in Patients With Advanced Malignant Tumors

"* Phase Ia: Single and Multiple Dose Escalation.~ 1. Dosage form: tablet.~ 2. Dosage: 7 dose groups, 5 mg, 15 mg, 30 mg, 45 mg, 60 mg, 80 mg, 100 mg.~ 3. Frequency: once daily (tentative), or twice daily and other options (adjusted based on the results of the preliminary trials).~ 4. Duration: 5 mg(days 1-28; 28 days per cycle), other groups (days 1-14; 21 days per cycle) .~* Phase Ib: Cohort Expansion. Dosage and dosing regimen: according to the recommended dosage and dosing cycle from the Phase Ia study."