...Number of Participants With Best Overall Response (BOR) Assessed by BICR in NSCLC and SCCHN Cohort in the Dose-expansion Phase`Number of Participants With BOR Assessed by Investigator in the Dose-escalation, Dose-exploration, and Dose-expansion Phase`Duration of Response (DoR) Assessed by BICR in NSCLC and SCCHN Cohort in the Dose-expansion Phase`DoR Assessed by Investigator in the Dose-expansion Phase`Disease Control Rate (DCR) Assessed by BICR in NSCLC and SCCHN Cohort in the Dose-expansion Phase`DCR Assessed by Investigator in the Dose-expansion Phase`Progression-free Survival (PFS) Assessed by BICR in NSCLC Cohort in the Dose-expansion Phase`PFS Assessed by BICR in SCCHN Cohort in the Dose-expansion Phase`PFS Assessed by Investigator in the Dose-expansion Phase`OS in the Dose-Expansion Phase`ORR Assessed by BICR in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`ORR Assessed by Investigator in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`DoR Assessed by BICR in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`DoR Assessed by Investigator in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`DCR Assessed by BICR in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`DCR Assessed by Investigator in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`PFS Assessed by BICR in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`PFS Assessed by Investigator in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`OS in UC Cohort (PD-L1 Low/Negative, Total, and PD-L1 High) in the Dose-expansion Phase`Adjusted Comparison of PFS by PD-L1 Status in UC Cohort in the Dose-expansion Phase`Adjusted Comparison of OS by PD-L1 Status in UC Cohort in the Dose-expansion Phase...