Domvanalimab and Zimberelimab in Advanced Liver Cancers

Inclusion criteria

• ✓. Patient must have a histologically confirmed diagnosis consistent with HCC or bile duct cancer (including intrahepatic cholangiocarcinoma, extrahepatic cholangiocarcinoma, and gall bladder cancers); known fibrolamellar HCC, or combined HCC-cholangiocarcinoma will be excluded.
• ✓. Locally advanced or metastatic disease
• ✓. Refractory to or relapsed after prior anti-PD-1/L1 antibody therapy. May have received anti-PD-1/L1 monotherapy or combination therapy as any line of therapy including in the neoadjuvant or adjuvant setting. Patients who discontinued prior immune checkpoint inhibitor treatment due to toxicity are not eligible.
• ✓. Availability of recent formalin-fixed, paraffin-embedded (FFPE) tumor tissue block or slides in which the biopsy or resection was performed within 3 years. Baseline tissue can be obtained after consent but must be prior to initiation of zimberelimab and domvanalimab. It is strongly recommended that tissue is obtained from biopsies confirming progression of disease on prior therapy so that the patient has not received any intervening systemic anti-cancer treatment from the time that the baseline tissue was obtained.
• ✓. Prior locoregional is allowed provided the following are met: 1) at least 2 weeks since prior locoregional therapy including surgical resection, chemoembolization, radiotherapy, or ablation; 2) target lesion has increased in size ≥25% or the target lesion was not treated with locoregional therapy. Patients treated with palliative radiotherapy for symptoms will be eligible as long as the target lesion is not the treated lesion and radiotherapy will be completed at least 2 weeks prior to study drug administration.
• ✓. Age ≥ 18 years
• ✓. Child-Pugh Score A or B7-8 (only for Cohort A)
• ✓. ECOG Performance score of 0-1

Exclusion criteria