A Study of INCMGA00012, INCB001158, and the Combination in Japanese Participants With Advanced Solid Tumors

A Phase 1b Study of INCMGA00012 (PD-1 Inhibitor), INCB001158 (Arginase Inhibitor), and the Combination in Japanese Participants With Advanced Solid Tumors

The purpose of this study is to assess the safety and tolerability and the pharmacokinetics (PK) of INCMGA00012 (PD-1 Inhibitor), INCB001158 (Arginase Inhibitor), and the combination in Japanese participants with advanced solid tumor malignancies.

Inclusion Criteria:

• Participant is Japanese
• Histologically or cytologically confirmed diagnosis of any locally advanced or metastatic solid tumors not amenable to local or other curative therapy.
• Participants with nonevaluable lesions are allowed.
• Life expectancy > 3 months.
• Eastern Cooperative Oncology Group performance status 0 to 1.
• Female participants agree to use medically acceptable contraceptive measures, should not be breastfeeding, and must have a negative pregnancy test before the start of study drug administration.
• Female participants of childbearing potential must understand and accept that pregnancy must be avoided during participation in the study.
• Male participants should avoid unprotected sex with women of childbearing potential and refrain from donating sperm during participation the study.

Exclusion Criteria:

• Receipt of anticancer therapy or participation in another interventional clinical study within 14 days before the first administration of study drug with the following exceptions: Immunotherapy or biological therapy (eg, monoclonal antibodies) within 21 days the first administration of study drug; 6 weeks for mitomycin-C or nitrosoureas; 7 days for tyrosine kinase inhibitors.
• Radiotherapy within 14 days of first dose of study treatment with the following exceptions: 28 days for pelvic radiotherapy; 6 months for thoracic region radiotherapy that is > 30 Gy.
• Toxicity of prior therapy and/or complications from surgical intervention that has not recovered to ≤ Grade 1 or baseline within 7 days before starting study drug treatment (with the exception of anemia not requiring transfusion support and any grade of alopecia). Note: Endocrinopathy, if well-managed, is not exclusionary and should be discussed with sponsor medical monitor.
• Receipt of prior systemic treatment with an arginase inhibitor
• Immune-related toxicity during prior checkpoint inhibitor therapy for which permanent discontinuation of therapy is recommended (per product label or consensus guidelines), OR any immune-related toxicity requiring intensive or prolonged immunosuppression to manage (with the exception of endocrinopathy that is well controlled on replacement hormones).
• Active autoimmune disease requiring systemic immunosuppression in excess of physiologic maintenance doses of corticosteroids (> 10 mg of prednisone or equivalent).
• Known active central nervous system metastases and/or carcinomatous meningitis.
• Known active hepatitis A virus, hepatitis B virus, or hepatitis C virus infection.
• Known HIV infection.
• Active infections requiring systemic therapy.
• Known hypersensitivity to another monoclonal antibody that cannot be controlled with standard measures and/or known hypersensitivity ≥ Grade 3, or severe reaction, to study treatments or any of their excipients or additives.
• Participants with impaired cardiac function or clinically significant cardiac disease.
• Evidence of interstitial lung disease or active, noninfectious pneumonitis or a history of interstitial lung disease.
• Participant is pregnant or breastfeeding.