Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA.
BCLC Group, Liver Oncology Unit, Liver Unit, Hospital Clinic of Barcelona, Institut d'Investigacions, Biomèdiques August Pi i Sunyer (IDIBAPS), CIBERehd, University of Barcelona, Barcelona, Spain.
J Hepatol. 2023 Jul;79(1):226-239. doi: 10.1016/j.jhep.2023.02.022. Epub 2023 Feb 26.
Major research efforts in liver cancer have been devoted to increasing the efficacy and effectiveness of surveillance for hepatocellular carcinoma (HCC). As with other cancers, surveillance programmes aim to detect tumours at an early stage, facilitate curative-intent treatment, and reduce cancer-related mortality. HCC surveillance is supported by a large randomised-controlled trial in patients with chronic HBV infection and several cohort studies in cirrhosis; however, effectiveness in clinical practice is limited by several barriers, including inadequate risk stratification, underuse of surveillance, and suboptimal accuracy of screening tests. There are several proposed strategies to address these limitations, including risk stratification algorithms and biomarkers to better identity at-risk individuals, interventions to increase surveillance, and emerging imaging- and blood-based surveillance tests with improved sensitivity and specificity for early HCC detection. Beyond clinical validation, data are needed to establish clinical utility, i.e. increased early tumour detection and reduced HCC-related mortality. If successful, these data could facilitate a precision screening paradigm in which surveillance strategies are tailored to individual HCC risk to maximise overall surveillance value. However, practical and logistical considerations must be considered when designing and implementing these validation efforts. To address these issues, ILCA (the International Liver Cancer Association) adjourned a single topic workshop on HCC risk stratification and surveillance in June 2022. Herein, we present a white paper on these topics, including the status of the field, ongoing research efforts, and barriers to the translation of emerging strategies.
肝癌的主要研究工作致力于提高肝细胞癌 (HCC) 监测的疗效和效果。与其他癌症一样,监测计划旨在早期发现肿瘤,促进有治愈意图的治疗,并降低癌症相关死亡率。HCC 监测得到了一项针对慢性 HBV 感染患者的大型随机对照试验和几项肝硬化队列研究的支持;然而,在临床实践中的有效性受到几个障碍的限制,包括风险分层不足、监测使用率低以及筛查试验的准确性不理想。有几种提出的策略可以解决这些限制,包括风险分层算法和生物标志物,以更好地识别高危个体,增加监测的干预措施,以及新兴的成像和基于血液的监测测试,这些测试具有提高早期 HCC 检测的敏感性和特异性。除了临床验证外,还需要数据来确定临床效用,即增加早期肿瘤检测和降低 HCC 相关死亡率。如果成功,这些数据可以促进精准筛查范式,根据个体 HCC 风险量身定制监测策略,以最大化整体监测价值。然而,在设计和实施这些验证工作时,必须考虑实际和后勤方面的考虑因素。为了解决这些问题,ILCA(国际肝癌协会)于 2022 年 6 月召开了一次关于 HCC 风险分层和监测的专题研讨会。在此,我们提出了一份关于这些主题的白皮书,包括该领域的现状、正在进行的研究工作以及新兴策略转化的障碍。