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. 2024 May 6:72:102622.
doi: 10.1016/j.eclinm.2024.102622. eCollection 2024 Jun.

Immune checkpoint inhibitors and anti-vascular endothelial growth factor antibody/tyrosine kinase inhibitors with or without transarterial chemoembolization as first-line treatment for advanced hepatocellular carcinoma (CHANCE2201): a target trial emulation study

Collaborators, Affiliations

Immune checkpoint inhibitors and anti-vascular endothelial growth factor antibody/tyrosine kinase inhibitors with or without transarterial chemoembolization as first-line treatment for advanced hepatocellular carcinoma (CHANCE2201): a target trial emulation study

Zhi-Cheng Jin et al. EClinicalMedicine. .

Abstract

Background: The role of transarterial chemoembolization (TACE) in the treatment of advanced hepatocellular carcinoma (HCC) is unconfirmed. This study aimed to assess the efficacy and safety of immune checkpoint inhibitors (ICIs) plus anti-vascular endothelial growth factor (anti-VEGF) antibody/tyrosine kinase inhibitors (TKIs) with or without TACE as first-line treatment for advanced HCC.

Methods: This nationwide, multicenter, retrospective cohort study included advanced HCC patients receiving either TACE with ICIs plus anti-VEGF antibody/TKIs (TACE-ICI-VEGF) or only ICIs plus anti-VEGF antibody/TKIs (ICI-VEGF) from January 2018 to December 2022. The study design followed the target trial emulation framework with stabilized inverse probability of treatment weighting (sIPTW) to minimize biases. The primary outcome was overall survival (OS). Secondary outcomes included progression-free survival (PFS), objective response rate (ORR), and safety. The study is registered with ClinicalTrials.gov, NCT05332821.

Findings: Among 1244 patients included in the analysis, 802 (64.5%) patients received TACE-ICI-VEGF treatment, and 442 (35.5%) patients received ICI-VEGF treatment. The median follow-up time was 21.1 months and 20.6 months, respectively. Post-application of sIPTW, baseline characteristics were well-balanced between the two groups. TACE-ICI-VEGF group exhibited a significantly improved median OS (22.6 months [95% CI: 21.2-23.9] vs 15.9 months [14.9-17.8]; P < 0.0001; adjusted hazard ratio [aHR] 0.63 [95% CI: 0.53-0.75]). Median PFS was also longer in TACE-ICI-VEGF group (9.9 months [9.1-10.6] vs 7.4 months [6.7-8.5]; P < 0.0001; aHR 0.74 [0.65-0.85]) per Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1. A higher ORR was observed in TACE-ICI-VEGF group, by either RECIST v1.1 or modified RECIST (41.2% vs 22.9%, P < 0.0001; 47.3% vs 29.7%, P < 0.0001). Grade ≥3 adverse events occurred in 178 patients (22.2%) in TACE-ICI-VEGF group and 80 patients (18.1%) in ICI-VEGF group.

Interpretation: This multicenter study supports the use of TACE combined with ICIs and anti-VEGF antibody/TKIs as first-line treatment for advanced HCC, demonstrating an acceptable safety profile.

Funding: National Natural Science Foundation of China, National Key Research and Development Program of China, Jiangsu Provincial Medical Innovation Center, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, and Nanjing Life Health Science and Technology Project.

Keywords: Hepatocellular carcinoma; Immune checkpoint inhibitors; Target trial emulation; Transarterial chemoembolization; Tyrosine kinase inhibitors; Vascular endothelial growth factor.

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Conflict of interest statement

We declare no competing interests.

Figures

Fig. 1
Fig. 1
Study cohort. HCC, hepatocellular carcinoma; ICIs, immune checkpoint inhibitors; VEGF, vascular endothelial growth factor; TKIs, tyrosine kinase inhibitors; TACE, transarterial chemoembolization; BCLC, Barcelona Clinic Liver Cancer; TACE-ICI-VEGF, TACE with ICIs plus anti-VEGF antibody/TKIs; ICI-VEGF, ICIs plus anti-VEGF antibody/TKIs.
Fig. 2
Fig. 2
Kaplan–Meier curves of (A) overall survival, (B) progression-free survival assessed by RECIST v1.1, and (C) progression-free survival assessed by mRECIST after sIPTW. TACE-ICI-VEGF, TACE with ICIs plus anti-VEGF antibody/TKIs; ICI-VEGF, ICIs plus anti-VEGF antibody/TKIs; TACE, transarterial chemoembolization; ICIs, immune checkpoint inhibitors; VEGF, vascular endothelial growth factor; TKIs, tyrosine kinase inhibitors; CI, confidence interval; mRECIST, modified RECIST; sIPTW, stabilized inverse probability of treatment weighting.
Fig. 3
Fig. 3
Subgroup analysis of overall survival. TACE-ICI-VEGF, TACE with ICIs plus anti-VEGF antibody/TKIs; ICI-VEGF, ICIs plus anti-VEGF antibody/TKIs; TACE, transarterial chemoembolization; ICIs, immune checkpoint inhibitors; VEGF, vascular endothelial growth factor; TKIs, tyrosine kinase inhibitors; HR, hazard ratio; CI, confidence interval; IPCW, inverse probability of censoring weight; FU, follow-up; PSM, propensity score matching; ECOG, Eastern Cooperative Oncology Group; ALBI, albumin-bilirubin; AFP, alpha-fetoprotein.

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