Efficacy and safety of combined TACE-HAIC and targeted immunotherapy in primary liver cancer with portal vein tumor thrombus - Report - MDSpire

Efficacy and safety of combined TACE-HAIC and targeted immunotherapy in primary liver cancer with portal vein tumor thrombus

  • By

  • Shaoqin Yang

  • Shuangshuang Zhang

  • Yuming Gu

  • June 15, 2026

  • 0 min

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Clinical Report: Safety and Efficacy of TACE-HAIC with Immunotherapy

Overview

This study evaluates the safety and efficacy of combining TACE-HAIC with targeted immunotherapy in patients with primary hepatocellular carcinoma (HCC) and portal vein tumor thrombus (PVTT). The quadruple-therapy group showed a significantly higher objective response rate compared to the triple-therapy group, although overall survival and progression-free survival rates were not significantly different.

Background

Hepatocellular carcinoma (HCC) with portal vein tumor thrombus (PVTT) poses significant treatment challenges, necessitating effective therapeutic strategies. Transarterial chemoembolization (TACE) combined with systemic therapies, including immunotherapy, has emerged as a promising approach. Understanding the efficacy and safety of these combined therapies is crucial for optimizing treatment protocols in advanced HCC.

Data Highlights

GroupObjective Response Rate (ORR)Overall Survival (OS)Progression-Free Survival (PFS)
Quadruple-therapySignificantly higher (P<0.05)No significant difference (P>0.05)No significant difference (P>0.05)
Triple-therapyLowerNo significant difference (P>0.05)No significant difference (P>0.05)

Key Findings

  • The quadruple-therapy group (TACE-HAIC plus immunotherapy) had a superior objective response rate for PVTT compared to the triple-therapy group.
  • No significant differences were observed in overall survival, progression-free survival, intrahepatic progression-free survival, or PVTT progression-free survival between the two groups.
  • Both treatment groups experienced adverse events, but the incidence was not detailed in the abstract.
  • HAIC is recommended as a first-line treatment for HCC with PVTT by the Japanese Society of Hepatology.
  • Research on combined therapies for patients with vascular invasion remains limited, highlighting the need for further studies.

Clinical Implications

The findings suggest that combining TACE-HAIC with targeted immunotherapy may enhance the treatment response in patients with HCC and PVTT. Clinicians should consider this quadruple-therapy approach for improving local tumor control while remaining aware of the overall survival outcomes.

Conclusion

The study supports the use of TACE-HAIC combined with targeted immunotherapy as an effective treatment strategy for PVTT, particularly in achieving higher objective response rates. Further research is warranted to explore long-term outcomes and optimize treatment protocols.

Related Resources & Content

  1. Frontiers in Immunology, 2026 -- Treatment for intermediate and advanced-stage hepatocellular carcinoma: does systemic therapy synergize the therapeutic efficacy of TACE?
  2. Frontiers in Medicine, 2026 -- The benefit and risk of adding PD-1/PD-L1 inhibitors plus anti-VEGF drugs to transarterial chemoembolisation for unresectable, non-metastatic hepatocellular carcinoma: a pooled analysis of four RCTs
  3. European Radiology, 2022 -- Determining Ideal Candidates for TACE in Post-TIPS Patients with HCC: A Multicenter Observational Analysis
  4. Frontiers in Immunology, 2026 -- Hepatic arterial infusion chemotherapy plus tyrosine kinase inhibitors with or without PD-1 inhibitors for advanced hepatocellular carcinoma with VP4 portal vein tumor thrombosis: a retrospective cohort study
  5. EASL Clinical Practice Guidelines on the management of hepatocellular carcinoma, 2025
  6. Efficacy and Safety of Atezolizumab plus Bevacizumab versus Sorafenib in Hepatocellular Carcinoma with Main Trunk and/or Contralateral Portal Vein Invasion in IMbrave150 - PMC
  7. Sorafenib Plus Hepatic Arterial Infusion of Oxaliplatin, Fluorouracil, and Leucovorin vs Sorafenib Alone for Hepatocellular Carcinoma With Portal Vein Invasion: A Randomized Clinical Trial - PMC
  8. EASL Clinical Practice Guidelines on the management of hepatocellular carcinoma
  9. IMbrave150 Study on Atezolizumab and Bevacizumab
  10. Sorafenib Plus Hepatic Arterial Infusion of Oxaliplatin, Fluorouracil, and Leucovorin vs Sorafenib Alone for Hepatocellular Carcinoma With Portal Vein Invasion: A Randomized Clinical Trial - PMC

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