Dose Escalation Study of a PD1-LAG3 Bispecific Antibody in Patients With Advanced and/or Metastatic Solid Tumors

Inclusion criteria * Patient must have histologically or cytologically confirmed advanced and/or metastatic solid tumor malignancies for which standard curative or palliative measures do not exist, are no longer effective, or are not acceptable to the patient * Eastern Cooperative Oncology Group Performance Status 0-1 * Fresh biopsies may be required * Women of childbearing potential and male participants must agree to remain abstinent or use contraceptive methods as defined by the protocol Additional Specific Inclusion Criteria for Participants with Melanoma * Histologically confirmed, unresectable stage III or stage IV melanoma * Not more than 2 prior lines of treatment for metastatic disease are allowed prior to enrolling in the study * Prior treatment with an approved anti-PD-1 or anti-PD-L1 agent Additional Specific Inclusion Criteria for Participants with Non-Small Cell Lung Cancer who Previously Received Treatment for Metastatic Disease * Participants with histologically confirmed advanced non-small cell lung cancer * Not more than 2 prior lines of treatment for metastatic disease are allowed prior to enrolling in the study * Previously treated with approved PD-L1/PD-1 inhibitors * Tumor PD-L1 expression as determined by immunohistochemistry assay of archival tumor tissue or tissue obtained at screening Additional Specific Inclusion Criteria for Participants with Esophageal Squamous Cell Carcinoma * Participants whose major lesion was histologically confirmed as…