A Multicenter, Open-label, Phase 1b/2 Trial of ABL103, a Bispecific Antibody of B7-H4 and 4-1BB, in Combination With Pembrolizumab With/Without Taxane in Subjects With Selected, Progressive, Locally Advanced (Unresectable) or Metastatic Solid Tumors

Inclusion Criteria: * Subject must understand and be willing to provide informed consent and be able to comply with the study procedures and restrictions. * Subjects must be ≥18 years of age on the day of signing the informed consent form (ICF). * Subject must have a histologically or cytologically confirmed locally advanced unresectable, or metastatic solid tumor. * Subject must be relapsed or be refractory to available standard therapy or they must be intolerant of available standard therapy. * Subject must meet Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1 assessed 7…