Yongqiang Xiao,1– 3,* Wanqing Chen,4,* Wei Deng,1,* Guoqing Zhu,1 Jin Xie,1 Laihui Luo,1 Liucong Lin,1 Jiahao Tao,1 Zhigao Hu,1 Renfeng Shan1 

1Department of General Surgery, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, People’s Republic of China; 2Department of General Surgery, Ganjiang New Area People’s Hospital, Nanchang, Jiangxi, People’s Republic of China; 3Department of General Surgery, Ganjiang New Area Hospital of the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People’s Republic of China; 4Department of Gastroenterology, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, People’s Republic of China

*These authors contributed equally to this work

Correspondence: Zhigao Hu; Renfeng Shan, Department of General Surgery, the First Affiliated Hospital, Jiangxi Medical College, Nanchang University, No. 17, Yongwaizheng Street, Nanchang, Jiangxi, 330006, People’s Republic of China, Tel/Fax +86-791-88692522, Email 854189568@qq.com; srf1978@126.com

Purpose: This study aimed to assess the prognostic significance of alpha-fetoprotein (AFP) response in patients with unresectable hepatocellular carcinoma (u-HCC) who underwent hepatic artery infusion chemotherapy (HAIC) combined with lenvatinib and camrelizumab.
Methods: A retrospective review was conducted on patients with u-HCC receiving treatment with HAIC combined with lenvatinib and camrelizumab. Early AFP response was defined as a > 20% decrease in AFP within 4 weeks, and AFP response as a > 75% decrease in AFP within 8 weeks. The correlation between early AFP response, AFP response, therapeutic response, overall survival (OS), and progression-free survival (PFS) was investigated.
Results: The study included 63 patients. AFP responders exhibited superior objective response rates compared to AFP non-responders, as determined by RECIST v1.1 or mRECIST criteria (45.5 vs. 18.2%, p=0.014, or 81.8 vs. 48.5%, p=0.013). Furthermore, early AFP responders demonstrated prolonged OS (not reached vs. 8.0 months, p< 0.001) and PFS (13.3 vs. 3.0 months, p= 0.018) relative to early AFP non-responders. Similarly, AFP responders exhibited improved OS (not reached vs. 9.0 months, p< 0.001) and PFS (19.3 vs. 5.1 months, p=0.002) compared to AFP non-responders. Multivariate analysis results indicated that both early AFP response and AFP response independently predicted OS [hazard ratio (HR) 2.963, 95% confidence interval (CI) 1.333– 6.585, p=0.008, and HR 6.182, 95% CI 1.780– 21.466, p=0.004] and PFS (HR 2.186, 95% CI 1.107– 4.318, p=0.024, and HR 3.078, 95% CI 1.407– 6.730, p=0.005), serving as significant prognostic values.
Conclusion: Early AFP response and AFP response serve as predictive biomarkers for the effectiveness of HAIC combined with lenvatinib and camrelizumab in patients with u-HCC.

Keywords: unresectable hepatocellular carcinoma, alpha-fetoprotein, hepatic arterial infusion chemotherapy, lenvatinib, camrelizumab