Summary: ROS1 rearrangements are rare, accounting for only 1-2% of NSCLC cases, but have been associated with response to ROS1 inhibitors, such as crizotinib and entrectinib. However, many patients develop resistance to the tyrosine-kinase inhibitors (TKIs), creating a need for new treatments. Repotrectinib is a new-generation TKI designed against ROS1 or NTRK rearranged malignancies (Drilon 2018). Early p...

Summary: Phase 1 dose escalation will determine the first cycle dose-limiting toxicities (DLTs), the maximum tolerated dose (MTD), the biologically effective dose and recommended Phase 2 dose (RP2D) of repotrectinib given to adult subjects with advanced solid malignancies harboring an ALK, ROS1, NTRK1, NTRK2, or NTRK3 gene rearrangement. Midazolam DDI substudy will examine effect of of repotrectinib on CYP...

Summary: This study will test the safety of the study drug, repotrectinib, in combination with chemotherapy (irinotecan and temozolomide) in children and young adults who have advanced or metastatic solid tumors. We researchers will try to find the highest dose of the study drug that causes few or mild side effects in study participants. When the researchers find this dose, we will evaluate it in a differe...