This phase I trial is trying to determine how safe and tolerable a new therapy (MGD013) is for treating patients with advanced cancersA Phase 1, First-in-Human, Open-Label, Dose Escalation Study of MGD013, A Bispecific DART Protein Binding PD-1 and LAG-3 in Patients With Unresectable or Metastatic Neoplasms

Exclusion

• Symptomatic central nervous system (CNS) metastases or primary CNS lymphoma
• History of allogeneic bone marrow, stem-cell, or solid organ transplant
• History of known or suspected autoimmune disease with the specific exceptions of vitiligo, resolved childhood atopic dermatitis, psoriasis not requiring systemic treatment (within the past 2 years), and patients with a history of Grave's disease that are now euthyroid clinically and by laboratory testing.
• Treatment with any systemic chemotherapy within 3 weeks prior to the initiation of study drug; treatment with biologics or investigational therapy within the 4 weeks prior to the initiation of study drug.
• Major surgery within 4 weeks prior to the initiation of study drug.
• Prior treatment with combination of monoclonal antibodies against PD-1 and LAG-3 (Cohort Expansion only).
• Treatment with radiation therapy within 2 weeks prior to the initiation of study drug.
• Clinically significant cardiovascular disease.
• QTcF prolongation > 480 milliseconds
• HER2+ cohort: left ventricular ejection fraction less than 50%
• Clinically significant pulmonary compromise, including a requirement for supplemental oxygen use to maintain adequate oxygenation.
• Active pneumonitis or history of non-infectious pneumonitis.
• Clinically significant gastrointestinal disorders.
• Evidence of active viral, bacterial, or systemic fungal infection requiring parenteral treatment within 7 days prior to the initiation of study drug.
• Known history of positive testing for human immunodeficiency virus or history of acquired immune deficiency syndrome.
• Known history of hepatitis B (except in hepatocellular carcinoma) or hepatitis C infection or known positive test for hepatitis B surface antigen, hepatitis B core antigen, or hepatitis C polymerase chain reaction (PCR)
• Vaccination with any live virus vaccine within 4 weeks prior to the initiation of study drug administration. Inactivated annual influenza vaccination is allowed
• Dementia or altered mental status that would preclude understanding and rendering of informed consent
• Confirmed or presumed COVID-19/SARS-CoV-2 infection. While SARS-CoV-2 testing is not mandatory for study entry, testing should follow local clinical practice guidelines/standards. Patients with a positive test result for SARS-CoV-2 infection, known asymptomatic infection, or presumed infection are excluded. Patients may be considered eligible after a resolved SARS-CoV-2 infection once he or she remains afebrile for at least 72 hours and after other SARS-CoV-2-related symptoms have fully recovered to baseline for a minimum of 72 hours.