Dose Escalation and Dose Expansion Study of MDX2004 in Participants With Advanced Tumors

Inclusion Criteria:

* Participant must be ≥ 18 years of age.
* Histologically or cytologically confirmed diagnosis of locally advanced or metastatic malignancy.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* All participants should have at least 1 measurable site of disease according to RECIST v1.1. An irradiated lesion can be considered measurable only if progression has been demonstrated on the irradiated lesion.
* Adequate hematologic, hepatic and renal function.
* All contraceptive use by men and women should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies.
* Capable of giving signed informed consent.

Exclusion Criteria:

* Any clinically significant cardiac disease.
* Unresolved toxicities from previous anticancer therapy.
* Known untreated, active, or uncontrolled brain metastases.
* Previous Grade 3 or 4 immune-related toxicity that led to the discontinuation of treatment, within 6 months prior to the first dose of MDX2004.
* Active medical condition requiring chronic systemic steroid use (\>10 mg/day prednisone or equivalent) or immunosuppressive therapy, within 6 months prior to the first dose of MDX2004.
* Known positivity with human immunodeficiency virus (HIV), known active hepatitis B or C, or uncontrolled chronic or ongoing infection requiring intravenous treatment.
* Prior solid organ or hematologic transplant
* Require supplemental oxygen for activities of daily living
* Participant is not suitable for participation, whatever the reason, as judged by the Investigator including medical or clinical conditions.