A Study of INCMGA00012 in Participants With Selected Solid Tumors (POD1UM-203)

Inclusion Criteria:

• Confirmed diagnosis of one of the following: treatment-naïve metastatic non-small celllung cancer with high PD-L1 expression (tumor proportion score ≥ 50%) and no epidermalgrowth factor receptor (EGFR), alkaline phosphatase (ALK), or ROS activating genomictumor aberrations; locally advanced or metastatic urothelial carcinoma in participantswho are not eligible for cisplatin therapy and whose tumors express PD-L1 with acombined positive score ≥ 10; unresectable or metastatic melanoma; locally advanced ormetastatic renal cell carcinoma with clear cell component (with or without sarcomatoidfeatures) and having received no prior systemic therapy.
• Measurable disease per RECIST v1.1.
• Eastern Cooperative Oncology Group performance status 0 to 1.
• Willingness to avoid pregnancy or fathering children.

Exclusion Criteria:

• Receipt of anticancer therapy or participation in another interventional clinicalstudy within 21 days before the first administration of study drug.
• Prior treatment with PD-1 or PD-L1 directed therapy (other immunotherapies may beacceptable with prior approval from the medical monitor).
• Radiotherapy within 14 days of first dose of study treatment with the followingcaveats: 28 days for pelvic radiotherapy; 6 months for thoracic region radiotherapythat is > 30 Gy.
• Toxicity of prior therapy that has not recovered to ≤ Grade 1 or baseline (with theexception of anemia not requiring transfusion support and any grade of alopecia).Endocrinopathy, if well-managed, is not exclusionary and should be discussed withsponsor medical monitor.
• Has not recovered adequately from toxicities and/or complications from surgicalintervention before starting study drug.
• Laboratory values outside the protocol-defined range at screening.
• Known additional malignancy that is progressing or requires active treatment, orhistory of other malignancy within 3 years of study entry.
• Active autoimmune disease requiring systemic immunosuppression in excess ofphysiologic maintenance doses of corticosteroids (> 10 mg of prednisone orequivalent).
• Evidence of interstitial lung disease or active noninfectious pneumonitis.
• Known active central nervous system metastases and/or carcinomatous meningitis.
• Known active hepatitis B antigen, hepatitis B virus, or hepatitis C virus infection.
• Active infections requiring systemic therapy.
• Known to be HIV-positive, unless all of the following criteria are met: CD4+ count ≥ 300/μL, undetectable viral load, receiving antiretroviral therapy.
• Known hypersensitivity to another monoclonal antibody that cannot be controlled withstandard measures (eg, antihistamines and corticosteroids).
• Impaired cardiac function or clinically significant cardiac disease.
• Is pregnant or breastfeeding.
• Has received a live vaccine within 28 days of the planned start of study drug.