Durvalumab and Tremelimumab for Pediatric Malignancies

Inclusion Criteria

• Max Age =17 years
• Solid Tumors (except primary central nervous system malignant tumors): Patients must have a histopathologic confirmation of malignancy. Patients must have progressed or are refractory to standard therapies, and for whom no standard of care treatments exist
• Non-Hodgkin's Lymphoma, limited to primary mediastinal B-cell lymphoma and anaplastic large cell lymphoma. Patients must have progressed or are refractory to standard therapies, and for whom no standard of care treatments exist.
• Provision of diagnostic tumor sample mandated if available
• Evaluable disease
• No prior exposure to immune-mediated therapy
• Adequate organ and marrow function
• Life expectancy of at least 3 months

Exclusion Criteria

• History of allogeneic organ transplantation (exceptions may be allowed for NHL after discussion with Sponsor). History of autologous bone marrow transplant may be allowed (after discussion with Sponsor).
• Active or prior documented autoimmune or inflammatory disorders (exceptions)
• Uncontrolled intercurrent illness
• History of primary immunodeficiency
• Active infection including tuberculosis, hepatitis B, C or HIV
• Any unresolved toxicity NCI CTCAE version 5.0 Grade ≥2 from previous anticancer therapy (exceptions)