RecruitingDrug trialDRP-104 (Glutamine Antagonist) in Combination With Durvalumab in Patients With Advanced Stage Fibrolamellar Carcinoma (FLC)The purpose of this study is to determine whether the combination of subcutaneous DRP-104 in combination with intravenous Durvalumab is safe and yields a clinically compelling antitumor activity measured as based on objective response rate (ORR, assessed by RECIST 1.1). Secondary objectives include progression-free survival (PFS) and overall survival (OS).