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ISSN 1001-5256 (Print)
ISSN 2097-3497 (Online)
CN 22-1108/R
Volume 40 Issue 10
Oct.  2024
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Article Contents

Efficacy and safety of camrelizumab monoclonal antibody combined with molecular-targeted therapy in elderly patients with advanced hepatocellular carcinoma

DOI: 10.12449/JCH241017
Research funding:

National Natural Science Foundation of China (82170626);

Natural Science Foundation of Shaanxi Province (2022SF-451);

Capital Health Development Research Special Project (2024-2-2176)

More Information
  • Corresponding author: GUO Jiang, guojiang7606@ccmu.edu.cn (ORCID: 0000-0001-8297-5458); GAO Ning, gaohuining1@163.com (ORCID: 0000-0003-1018-3990)
  • Received Date: 2024-01-22
  • Accepted Date: 2024-04-29
  • Published Date: 2024-10-25
  •   Objective  To investigate the efficacy and safety of camrelizumab monoclonal antibody combined with molecular-targeted therapy in elderly patients with unresectable or advanced hepatocellular carcinoma (HCC).  Methods  A retrospective analysis was performed for the patients with unresectable/advanced HCC who attended six hospitals from January 1, 2019 to March 31, 2021, and all patients received camrelizumab monoclonal antibody treatment, among whom 84.8% also received targeted therapy. According to the age of the patients, they were divided into elderly group (≥65 years) and non-elderly group (<65 years). The two groups were assessed in terms of overall survival (OS), progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and immune-related adverse events (irAE). The chi-square test or the Fisher’s exact test was used for comparison of categorical data between groups; the independent samples t-test was used for comparison of normally distributed continuous data, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups. The Kaplan-Meier method was used for survival analysis, and the log-rank test was used for comparison of survival curves. Univariate and multivariate Cox proportional hazards regression analyses were used to determine the independent influencing factors for PFS and DCR at 6 months.  Results  A total of 99 HCC patients were enrolled, with 27 in the elderly group and 72 in the non-elderly group. The elderly group had an OS rate of 67.8%, an ORR of 44.4%, and a DCR of 74.1% at 12 months and a median PFS of 6.4 (95% confidence interval [CI]: 3.0‍ ‍—‍ ‍12.4) months, with no significant differences compared with the non-elderly group (all P>0.05). The median OS was unavailable for the elderly group, while the non-elderly group had an OS of 18.9 (95%CI: 13.0‍ ‍—‍ ‍24.8) months; there was no significant difference between the two groups (P=0.485). The univariate and multivariate Cox regression analyses showed that major vascular invasion (MVI) was an independent risk factor for PFS (hazard ratio [HR]=2.603, 95%CI: 1.136‍ ‍—‍ ‍5.964, P=0.024) and DCR (HR=3.963, 95%CI: 1.671‍ ‍—‍ ‍9.397, P=0.002) at 6 months, while age, sex, etiology of HBV infection, presence of extrahepatic metastasis, Child-Pugh class B, and alpha-fetoprotein>400 ng/mL were not associated with PFS or DCR at 6 months. For the elderly group, the incidence rates of any irAE and grade 3/4 irAE were 51.9% and 25.9%, respectively, with no significant differences compared with the non-elderly group (P>0.05), and skin disease was the most common irAE in both groups (39.4%).  Conclusion  Camrelizumab monoclonal antibody combined with molecular-targeted therapy has similar efficacy and safety in patients with unresectable/advanced HCC aged ≥65 years and those aged <65 years. MVI is associated with suboptimal response to immunotherapy and poor prognosis.

     

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