A Study of GI-108, an Anti-CD73-IgG4 Fc-IL-2v Bispecific Fusion Protein, as Monotherapy in Patients With Advanced or Metastatic Solid Tumors

The purpose of this study is to evaluate the safety, tolerability, pharmacokinetics, and therapeutic activity of GI-108, as a single agent, in patients with advanced or metastatic solid tumors

Key Inclusion Criteria: * Males and females aged ≥ 18 years (or ≥ 19 years according to local regulatoryguidelines) at the time of screening. * Has adequate organ and marrow function as defined in protocol. * Measurable disease as per RECIST v1.1. * ECOG performance status 0-1. * Adverse events related to any prior chemotherapy, radiotherapy, immunotherapy,other prior systemic anti-cancer therapy, or surgery must have resolved to Grade≤1, except alopecia and Grade 2 peripheral neuropathy. * HIV infected patients must be on anti-retroviral therapy (ART) and have a well-controlled HIV infection/disease as defined in protocol. Key Exclusion Criteria: * Has known active CNS metastases and/or carcinomatous meningitis. An active second malignancy. * Has active or a known history of Hepatitis B or known active Hepatitis C virus infection. * Has active tuberculosis or has a known history of active tuberculosis. Active or uncontrolled infections, or severe infection within 4 weeks before study treatment administration. * History of chronic liver disease or evidence of hepatic cirrhosis, except patients with liver metastasis. * Has an active autoimmune disease that has required systemic treatment in past 2 years. * Previous immunotherapies related to mode of action of GI-102. Has a diagnosis of immunodeficiency or is receiving chronic systemic steroidtherapy or any other form of immunosuppressive medications within 2 weeksprior to Cycle 1 Day 1.