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

Prior treatment

• 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.
• 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.

Other illness

• 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.
• 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.

• 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.