Zhai Yirui, Zhang Yefan, Wu Fan, Zhou Jianguo, Xin Lingxia, Ye Feng, Sun Wei, Zeng Huiying, Song Yan, Sun Yongkun, Zhang Wen, Wang Shu-Lian, Tang Yuan, Fang Hui, Zhao Pan, Liu Yueping, Lu Ningning, Qi Shunan, Jing Hao, Zhang Wenwen, Song Yongwen, Li Ye-Xiong, Wang Liming, Chen Bo
Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Department of Hepatobiliary Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Front Immunol. 2025 Aug 4;16:1594577. doi: 10.3389/fimmu.2025.1594577. eCollection 2025.
BACKGROUND: The prognosis of metastatic or recurrent hepatocellular carcinoma (HCC) remains poor, and new treatment strategies are warranted. Despite promising preclinical results demonstrating that radiation primes the immune system and produces a synergistic antitumor response for long-term disease control, limited clinical data are available. Therefore, in this study, we investigated the efficacy and safety of combining radiotherapy with immune checkpoint inhibitors (ICIs) for patients with metastatic and recurrent HCC in a real-world setting. MATERIALS AND METHODS: Patients with stage IV or recurrent HCC who received sequential or concurrent radiotherapy and ICIs in our institution were enrolled in this study. Data regarding clinicopathological characteristics, treatment protocols, response rates, toxicities, and survival were collected. RESULTS: From January 2018 to December 2021, 108 patients were included. Extra-hepatic metastasis and portal vein tumor thrombosis were recorded in 58 (53.7%) and 69 patients (63.9%), respectively. A median radiation dose of 55 Gy was administered, and ICIs were administered for 3 weeks until disease progression or limiting toxicities occurred. After treatment, the overall response rate was 75.0%, and the median follow-up duration was 18.8 months. Median overall survival and progression-free survival were 17.0 and 12.6 months, respectively. Only one patient experienced in-field recurrence. Grade ≥3 adverse events were observed in 30.6% of patients. Dermatitis was the most common toxicity-related event and thrombocytopenia was the most common grade ≥3 adverse event, occurring overall in 17.6% of patients. CONCLUSION: The ICI and radiotherapy combination was effective and well-tolerated in real-world patients, achieving more favorable results compared with historical ones and providing a new multimodality therapy for patients with recurrent and metastatic HCC.
背景:转移性或复发性肝细胞癌(HCC)的预后仍然很差,因此需要新的治疗策略。尽管临床前研究结果显示放疗可激活免疫系统并产生协同抗肿瘤反应以实现长期疾病控制,但相关临床数据有限。因此,在本研究中,我们在真实世界环境中调查了放疗联合免疫检查点抑制剂(ICI)治疗转移性和复发性HCC患者的疗效和安全性。 材料与方法:纳入在我院接受序贯或同步放疗及ICI治疗的IV期或复发性HCC患者。收集患者的临床病理特征、治疗方案、缓解率、毒性反应和生存率等数据。 结果:2018年1月至2021年12月,共纳入108例患者。分别有58例(53.7%)和69例(63.9%)患者出现肝外转移和门静脉癌栓。中位放疗剂量为55 Gy,ICI治疗3周,直至疾病进展或出现毒性反应。治疗后,总缓解率为75.0%,中位随访时间为18.8个月。中位总生存期和无进展生存期分别为17.0个月和12.6个月。仅1例患者出现野内复发。30.6%的患者发生≥3级不良事件。皮炎是最常见的毒性相关事件,血小板减少是最常见的≥3级不良事件,总体发生率为17.6%。 结论:在真实世界患者中,ICI与放疗联合治疗有效且耐受性良好,与既往研究相比取得了更理想的结果,为复发性和转移性HCC患者提供了一种新的多模式治疗方法。
Cochrane Database Syst Rev. 2018-2-6