A Phase I Trial of IMA970A Plus Montanide in Combination With Durvalumab (Anti-PD-L1)

Inclusion criteria

• ✓. Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol. Written informed consent and any locally required authorization (e.g., Health Insurance Portability and Accountability Act in the US, European Union \[EU\] Data Privacy Directive in the EU) obtained from the patient/legal representative prior to performing any protocol-related procedures, including screening evaluations.
• ✓. Age \> 18 years at time of study entry.
• ✓. HLA type: HLA-A\*02 and/or HLA-A\*24 positive.
• ✓. Very early, early and intermediate stage (Barcelona Clinic Liver Cancer (BCLC) stage 0, A, B disease) hepatocellular carcinoma (HCC) diagnosed by biopsy or resected tissue (patho-histological diagnosis) or imaging findings (non-invasive criteria) following any standard treatment (e.g. hepatic resection, Radiofrequency Ablation / Percutaneous Ethanol injection (RFA/PEI), Transarterial chemoembolization (TACE) and SIRT) and without any evidence of active disease that warrant further treatment.
• ✓. Minimum life expectancy of 1 year.
• ✓. Patho-histological diagnosis of HCC based on biopsy is required for all nodules occurring in non-cirrhotic livers, and for those cases with inconclusive or atypical imaging appearance in cirrhotic livers.
• ✓. Non-invasive criteria can only be applied to cirrhotic patients and need to be based on imaging techniques obtained by 4-phase multidetector CT scan or dynamic contrast enhanced MRI and on the identification of the typical hallmark of HCC (hypervascular in the arterial phase with washout in the portal venous or delayed phase). One imaging technique is sufficient for nodules beyond 1 cm (\> 1 cm) in diameter.
• ✓. Patients for whom no standard anti-tumour therapy is indicated for the next 3 months thereafter any standard anti-tumour therapies applied for the treatment of BCLC stage 0, A and B HCC (e.g. RFA/PEI, TACE, and SIRT) are allowed to be applied in combination with the study treatment. Patients for whom treatment for advanced disease (e.g.