Efficacy and safety of transarterial chemoembolization combined with donafenib and camrelizumab for hepatocellular carcinoma with portal vein tumor thrombus: a dual-center, retrospective propensity score-matched analysis.
Zhang Q, Qing H, Lei Z, Xie X • Frontiers in immunology • 2026
In a retrospective PSM analysis, TACE combined with donafenib and camrelizumab (triple therapy) was associated with longer median overall survival (15.90 vs 9.10 months) and progression-free survival (11.20 vs 7.10 months) compared to TACE plus donafenib alone in HCC patients with portal vein tumor thrombus.
Key Findings
Results
The TACE+D+C group was associated with significantly longer median overall survival compared to the TACE+D group.
Median overall survival was 15.90 months in the TACE+D+C group versus 9.10 months in the TACE+D group.
The difference was statistically significant (P < 0.001).
Both groups included 109 patients each after propensity score matching at a 1:1 ratio.
OS was calculated from the date of TACE completion.
Results
The TACE+D+C group was associated with significantly longer median progression-free survival compared to the TACE+D group.
Median progression-free survival was 11.20 months in the TACE+D+C group versus 7.10 months in the TACE+D group.
The difference was statistically significant (P < 0.001).
PFS was calculated from the date of TACE completion.
109 patients were in each group after PSM.
Results
The TACE+D+C group demonstrated markedly higher objective response rate and disease control rate for intrahepatic lesions.
ORR for intrahepatic lesions was 58.72% in the TACE+D+C group versus 36.70% in the TACE+D group (P = 0.001).
DCR for intrahepatic lesions was 89.91% in the TACE+D+C group versus 77.06% in the TACE+D group (P = 0.011).
Both differences were statistically significant.
Results
The TACE+D+C group demonstrated higher tumor response rates in portal vein tumor thrombus compared to the TACE+D group.
ORR for PVTT was 42.20% in the TACE+D+C group versus 23.85% in the TACE+D group (P = 0.004).
DCR for PVTT was 77.06% in the TACE+D+C group versus 64.22% in the TACE+D group (P = 0.037).
Both differences were statistically significant.
Results
The incidence of adverse events after TACE was similar between both groups, with only mild immune-related adverse events unique to the TACE+D+C group.
The incidence of AEs after TACE was similar in both groups.
Mild grade 1-2 immune-related adverse events (irAEs) specific to camrelizumab were only detected in the TACE+D+C group.
No severe grade 3-4 irAEs were recorded in either group.
The safety profile suggests the triple therapy combination was generally tolerable.
Methods
The study enrolled patients with HCC complicated by PVTT from two medical centers between December 2021 and July 2025, with propensity score matching used to balance baseline confounding factors.
Patients were diagnosed at two medical centers between December 2021 and July 2025.
PSM was performed at a 1:1 ratio with a caliper width of 0.2 standard deviations.
109 patients were included in each group after matching.
The design was a dual-center, retrospective observational study.
Primary endpoints were median OS and median PFS; secondary endpoints were ORR, DCR, and AEs.
What This Means
This research suggests that combining transarterial chemoembolization (TACE), a procedure that delivers chemotherapy directly to liver tumors while blocking their blood supply, with two drugs—donafenib (a targeted therapy) and camrelizumab (an immunotherapy)—may offer meaningful benefits for patients with liver cancer (hepatocellular carcinoma) that has spread into the portal vein, a condition called portal vein tumor thrombus (PVTT). Patients who received this triple therapy lived a median of about 15.9 months compared to 9.1 months for those who received TACE plus donafenib alone, and they also went longer before their disease progressed (11.2 versus 7.1 months). Tumor shrinkage rates were also substantially higher with the triple therapy, both for tumors in the liver and for the clots in the portal vein.
In terms of safety, the overall rate of side effects from TACE was similar between the two groups. Patients receiving camrelizumab did experience some immune-related side effects unique to that drug, but these were all mild (grade 1-2) and no severe immune-related reactions were observed. This suggests the combination may be reasonably well-tolerated.
This research is based on a retrospective analysis—meaning it looked back at existing patient records rather than conducting a controlled experiment—and propensity score matching was used to try to make the two groups of patients comparable. The authors themselves caution that these results cannot establish that triple therapy is definitively superior and that prospective randomized controlled trials are needed to confirm these findings. Nevertheless, the results suggest this triple-combination approach may be a promising treatment strategy for a particularly difficult-to-treat form of liver cancer.
Zhang Q, Qing H, Lei Z, Xie X. (2026). Efficacy and safety of transarterial chemoembolization combined with donafenib and camrelizumab for hepatocellular carcinoma with portal vein tumor thrombus: a dual-center, retrospective propensity score-matched analysis.. Frontiers in immunology. https://doi.org/10.3389/fimmu.2026.1882605