A Dose-escalation Study of RO7567132 as Single Agent and in Combination With Atezolizumab in Participants With Advanced Solid Tumors

Inclusion Criteria: * Male or female participants aged ≥18 years * Body weight \> 40 kilograms (kg) * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 and Life expectancy of at least 12 weeks * Participants with advanced and/or metastatic solid tumors * Availability and willingness to provide a mandatory archival tumor specimen or (if not available) a fresh baseline biopsy * Negative serum pregnancy test * Participants must have adequate cardiovascular, hematological, liver and renal function. Exclusion Criteria: * Known central nervous system (CNS) tumors or metastases and leptomeningeal metastases * Active second malignancy within 2 years prior to screening * History or current clinically significant cardiovascular/cerebrovascular disease * Active or history of autoimmune disease * Serious, uncontrolled infection * Known clinically significant liver disease * Unresolved acute toxicity \> grade 1 from prior therapy