This phase I trial studies the side effects and best dose of aglatimagene besadenovec and valacyclovir (gene mediated cytotoxic immunotherapy [GMCI]), nivolumab, radiation therapy, and temozolomide in treating patients with newly diagnosed high-grade gliomas. Aglatimagene besadenovec and valacyclovir may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Drugs used in chemotherapy, such as temozolomide, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving GMCI, nivolumab, radiation therapy, and temozolomide may work better in treating patients with high-grade gliomas.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT03576612.
PRIMARY OBJECTIVE:
I. To assess the safety/maximum tolerated dose (MTD) of the combination of aglatimagene besadenovec (AdV-tk) given intra-cranially at the time of initial tumor resection followed by valacyclovir (GMCI), nivolumab, and standard of care (radiation therapy [RT]+temozolomide [TMZ]) in patients with high-grade gliomas (HGG).
SECONDARY OBJECTIVES:
I. To evaluate safety and toxicity of this combined treatment regimen.
II. To estimate overall survival.
III. To estimate progression free survival.
IV. Immune biomarkers, including serum extracellular vesicles (EVs).
OUTLINE:
Patients undergo tumor resection and receive aglatimagene besadenovec intratumorally (IT) followed by valacyclovir orally (PO) and radiation therapy (RT) while on study. Patients then receive nivolumab intravenously (IV) and temozolomide PO until methylation status is known while on study. Patients who have tumors determined to be MGMT unmethylated continue receiving RT and nivolumab IV while on study. Patients who have tumors determined to be MGMT methylated continue receiving temozolomide PO during RT and nivolumab IV while on study. Patients undergo magnetic resonance imaging (MRI) and blood sample collection throughout the study.
Lead OrganizationAdult Brain Tumor Consortium
Principal InvestigatorPatrick Yung Chih Wen