This phase I trial is to find out the best dose, possible benefits, and/or side effects of riluzole and how well it works in combination with standard of care mFOLFOX6 and bevacizumab in treating patients with colorectal cancer that has spread to other places in the body (metastatic). Riluzole is a well-tolerated oral medication that has demonstrated it may make chemotherapy work better. Chemotherapy drugs, such as oxaliplatin, leucovorin calcium and fluorouracil, work in different ways to stop the growth of [cancer/tumor] cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Bevacizumab is an antibody that targets the blood vessel by blocking the activity of a protein called vascular endothelial growth factor alpha (VEGF-A). It helps to make the mFOLFOX6 more effective. Giving riluzole, mFOLFOX6, and bevacizumab may kill more tumor cells compared to mFOLFOX6 and bevacizumab alone in treating patients with colorectal cancer.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT04761614.
PRIMARY OBJECTIVE:
I. Characterize the safety and toxicity of riluzole in combination with modified (m) leucovorin calcium, fluorouracil, and oxaliplatin (FOLFOX) 6/bevacizumab/bevacizumab biosimilars and determine the recommended phase II dose (RP2D) of riluzole in combination with mFOLFOX6/bevacizumab in patients with metastatic colorectal cancer.
SECONDARY OBJECTIVE:
I. Determine the pharmacokinetics of riluzole in patients with metastatic CRC.
EXPLORATORY OBJECTIVES:
I. Assess the efficacy of the combination treatment.
II. Determine the effect of riluzole in downstream GRM3 signaling by immunofluorescent staining of phosphorylated (p)AKT and pCREB in pre- and post-treatment tumor tissues.
III. Assess FCGRT/FcRn expression, bevacizumab pharmacokinetics, inflammatory cytokines, and cachexia associated factors as early biomarkers for resistance to therapy.
IV. Assess cytotoxic T cells in peripheral blood to evaluate the immunomodulatory effect of this therapy.
OUTLINE: This is a dose-escalation study of riluzole.
Patients receive riluzole orally (PO) twice daily (BID) on days 1-14. Patients also receive oxaliplatin via intravenous piggyback (IVPB) over 2 hours, leucovorin calcium IVPB over 2 hours, and bevacizumab IVPB over 30 minutes on day 1 and fluorouracil via intravenous (IV) push over 5 minutes and then IV continuously over 46 hours on days 1-2. Treatment repeats every 2 weeks for up to 8 cycles in the absence of disease progression or unacceptable toxicity. Patients additionally undergo blood sample collections, biopsy and computed tomography (CT) on study.
After completion of study treatment, patients are followed up for 30 days.
Lead OrganizationOhio State University Comprehensive Cancer Center
Principal InvestigatorNing Jin