SAR-445877

This is a Phase 1/2, open label, multiple cohort study to assess the safety and preliminary efficacy of SAR445877 as a monotherapy or in combination with other anticancer therapies for participants aged at least 18 years with advanced unresectable or metastatic solid tumors.
The study will include 2 parts:
A dose escalation Part 1: for finding the therapeutic dose(s) of SAR445877 in a monotherapy given every 2 weeks (Q2W) or weekly (QW) and in combination with other anticancer therapies when applicable.
A multicohort dose expansion/dose optimization Part 2: for the assessment of safety and preliminary efficacy of SAR445877 in monotherapy and in combination with cetuximab: 2 recommended doses for expansion/optimization of SAR445877 identified from dose escalation part 1 will be tested in different indications in monotherapy and in combination with other anticancer therapies as applicable.
Approximately 285 participants will be enrolled to the study intervention: approximately 75 participants in part 1 and up to 210 participants in expansion/dose optimization part (part 2).