A Dose Escalation Study of RO6874813 in Participants With Locally Advanced or Metastatic Solid Tumors

This first-in-human study consists of three parts. The primary purpose of Part 1 is to characterize the safety and tolerability of RO6874813 in participants with locally advanced and/or metastatic solid tumors whose disease has progressed despite standard therapy or for whom no standard therapy exists. In addition, the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) will be determined. In Part 2 the safety and tolerability of RO6874813 will continue to be characterized in participants with locally advanced and/or metastatic solid tumors known to be fibroblast activation protein-alpha positive (FAP+). In addition, treatment-induced efficacy of RO6874813 will be assessed by functional imaging and paired tumor biopsies. The primary purpose of Part 3 is to demonstrate anti-tumor activity of RO6874813 in participants with recurrent or metastatic FAP+ sarcomas.