A Study on Tuvusertib (Oral ATR Inhibitor) in Combination With PLX038 (Topo1 Inhibitor) in Patients With Advanced Solid Tumors

"Dose escalation will be conducted on the grid defined by the 4 doses of PLX038 (800 mg/m², 1000 mg/m², 1300 mg/m² and 1700 mg/m² IV every 21 days D1=D22) and 3 doses of Tuvusertib (90 mg, 130 mg and 180 mg QD for 10 days from D3, D3-12). Premedication with anti-emetic agents is not required prior to the initial infusion, but may be used for an individual patient, as needed.~All included patients will receive PLX038 + Tuvusertib until progression of disease, unacceptable toxicity, patient withdrawal of consent, investigator decision, lost to follow-up, death, patient non-compliance, or study termination by Sponsor."