scholarly journals Immune Checkpoint Inhibitors as Monotherapy or Within a Combinatorial Strategy in Advanced Hepatocellular Carcinoma

2020 ◽  
Vol 21 (17) ◽  
pp. 6302
Author(s):  
Michela Guardascione ◽  
Giuseppe Toffoli

In advanced-stage hepatocellular carcinoma (HCC), systemic treatment represents the standard therapy. Target therapy has marked a new era based on a greater knowledge of molecular disease signaling. Nonetheless, survival outcomes and long-term response remain unsatisfactory, mostly because of the onset of primary or acquired resistance. More recently, results from clinical trials with immune targeting agents, such as the immune checkpoint inhibitors (ICIs), have shown a promising role for these drugs in the treatment of advanced HCC. In the context of an intrinsic tolerogenic liver environment, since HCC-induced immune tolerance, it is supported by multiple immunosuppressive mechanisms and several clinical trials are now underway to evaluate ICI-based combinations, including their associations with antiangiogenic agents or multikinase kinase inhibitors and multiple ICIs combinations. In this review, we will first discuss the basic principles of hepatic immunogenic tolerance and the evasive mechanism of antitumor immunity in HCC; furthermore we will elucidate the consistent biological rationale for immunotherapy in HCC even in the presence of an intrinsic tolerogenic environment. Subsequently, we will critically report and discuss current literature on ICIs in the treatment of advanced HCC, including a focus on the currently explored combinatorial strategies and their rationales. Finally, we will consider both challenges and future directions in this field.

2021 ◽  
Author(s):  
Yue Hu ◽  
Tao Pan ◽  
Xi Cai ◽  
Quansheng He ◽  
Yubao Zheng ◽  
...  

Abstract BackgroundThe survival benefit and safety of transarterial chemoembolization (TACE) for advanced Hepatocellular Carcinoma (HCC) patients treated with tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors (ICIs) is unclear. We aimed to investigate the efficacy and safety of TACE combined with TKIs and ICIs the treatment of advanced HCC. MethodsIn this study, the conditions of 147 patients with advanced HCC who underwent TKIs plus ICIs treatment between July 2017 and April 2020 were evaluated. We divided these patients into the TACE group and non-TACE group based on whether they were treated with TACE during TKIs plus ICIs treatment, and compared their survival outcomes, especially overall survival (OS), and whether they were exposed to unexpected toxicities. ResultsIn this study, a total of 98 patients who underwent TACE during TKIs plus ICIs treatment were included in the TACE group, while the other 49 patients were included in the non-TACE group. According to the Modified Response Evaluation Criteria in Solid Tumors (mRECIST), the objective response rate (ORR) of the TACE group was higher than that of the non-TACE group (ORR 74.5% vs. 40.8%, p <0.001). The OS of the TACE group was significantly longer than the non-TACE group (OS 19.3 months vs. 10.8 months, p = 0.010). The incidence of grade 3-4 toxicities in the TACE group was similar to that in the non-TACE group (33.7% vs. 28.6%, p = 0.532). ConclusionsThe TACE treatment combined with TKIs plus ICIs resulted in longer OS compared to the treatment of systemic TKIs plus ICIs without TACE during the process of advanced HCC.


2021 ◽  
Vol 9 (2) ◽  
pp. e001945 ◽  
Author(s):  
Jeffrey Sum Lung Wong ◽  
Gerry Gin Wai Kwok ◽  
Vikki Tang ◽  
Bryan Cho Wing Li ◽  
Roland Leung ◽  
...  

BackgroundProgrammed cell death protein 1 (PD-1) pathway blockade with immune checkpoint inhibitors (ICIs) is a standard therapy in advanced hepatocellular carcinoma (HCC) nowadays. No strategies to overcome ICI resistance have been described. We aimed to evaluate the use of ipilimumab and anti-PD-1 ICIs (nivolumab or pembrolizumab) combinations in patients with advanced HCC with progression on prior ICIs.MethodsPatients with advanced HCC with documented tumor progression on prior ICIs and subsequently received ipilimumab with nivolumab/pembrolizumab were analyzed. Objective response rate (ORR), median duration of response (DOR), time-to-progression (TTP), overall survival (OS), and treatment-related adverse events (TRAEs) were assessed.ResultsTwenty-five patients were included. The median age was 62 (range: 51–83). About 68% were of Child-Pugh (CP) Grade A and 48% had primary resistance to prior ICI. At median follow-up of 37.7 months, the ORR was 16% with a median DOR of 11.5 months (range: 2.76–30.3). Three patients achieved complete response. The median TTP was 2.96 months (95% CI: 1.61 to 4.31). Median OS was 10.9 months (95% CI: 3.99 to 17.8) and the 1 year, 2 year and 3 year survival rates were 42.4%, 32.3% and 21.6%, respectively. The ORR was 16.7% in primary resistance group and 15.4% in acquired resistance group (p=1.00). All responders were of CP A and Albumin-Bilirubin (ALBI) Grade 1 or 2. CP and ALBI Grades were significantly associated with OS (p=0.006 and p<0.001, respectively). Overall, 52% of patients experienced TRAEs and 12% experienced Grade 3 or above TRAEs.ConclusionsIpilimumab and nivolumab/pembrolizumab can achieve durable antitumor activity and encouraging survival outcomes with acceptable toxicity in patients with advanced HCC who had prior treatment with ICIs.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e16156-e16156
Author(s):  
Jian He ◽  
Zhiqiang Mo ◽  
Qicong Mai ◽  
Xiaoming Chen

e16156 Background: Neutrophil to lymphocyte ratio (NLR) has been shown to associate with tumor progression. The present study was to investigate the role of NLR on predicting the treatment response for immune checkpoint inhibitors (ICIs) therapy in patients with advanced hepatocellular carcinoma (HCC). Methods: We retrospectively reviewed 81 patients received ICIs for advanced HCC from January 2017 to July 2019. We analyzed whether pre- and first 3 weeks post- treatment serum NLR level was associated with ICIs outcome. Results: In this study, the pre-treatment NLR level ranged from 0.64 to 14.93 among 81 patients. The cut-off level of NLR was set as the median value of 2.79. The objective response rate (ORR) in the patients with NLR<2.79 (low NLR) was 25.0%, which was significantly better than that of patients with NLR ≥2.79 (high NLR) (7.3%, P =0.03). Compared to patients with high NLR, patients with low NLR exhibited significantly longer median progression-free survival (PFS) (3.7 vs 3.0 months, P =0.004) and median overall survival (OS) (10.3 vs 7.5 months, P =0.001). Multivariate analysis revealed high NLR was an independent unfavourable prognostic factor for PFS (hazard ratio [HR] = 1.857, 95% confidence interval [CI] = 1.093-3.154; P = 0.022) and OS (HR = 2.267, 95% CI = 1.221-4.207; P = 0.009). For the patients with high pre-treatment NLR level, ICIs outcome was stratified more clearly by first 3 weeks post- treatment NLR level. Conclusions: The pre- and first 3 weeks post- treatment serum NLR level could be considered as a predictive factor of treatment response for ICIs in patients with advanced HCC.


2022 ◽  
Author(s):  
Jiaxi Zheng ◽  
◽  
Haihua Yang

Review question / Objective: Is immunotherapy associated with beneficial clinical outcomes for hepatocellular carcinoma (HCC) and how can combination immunotherapy be deployed to produce the best benefit? Is tumor mutation burden (TMB) a predictive biomarker for immune‐checkpoint inhibitors? Condition being studied: To this date, about 50 single-arm clinical trials and several randomized control trials (RCTs) presented final or interim results of investigations on the efficacy of PD-1/PD-L1 inhibitors for advanced HCC. In the CheckMate 459, IMbrave 050, and ORIENT-32, immunotherapies were found to significantly improve progression-free survival (PFS) and overall survival (OS) compared with sorafenib (a tyrosine-kinase inhibitor, as standard systemic treatment) in patients with advanced hepatocellular carcinoma. However, these clinical trials were different on clinical phases, sample size, and response evaluation criteria, and inconsistent clinical outcomes were shown in several trials.


2020 ◽  
Vol 19 ◽  
pp. 153303382094748
Author(s):  
Xinlun Dai ◽  
Shupeng Wang ◽  
Chunyuan Niu ◽  
Bai Ji ◽  
Yahui Liu

Hepatocellular carcinoma (HCC) remains to a common cause of tumor mortality worldwide and represents the most common type of lethal hepatic malignancy. The incidence of HCC is swiftly increasing in western countries and southeast Asia. Despite poor prognosis, traditional treatments for advanced HCC appear to be minimally effective or even useless since patients are usually diagnosed in the advanced stage of disease. In recent years, immune checkpoint blockade has shown promising results in multiple pre-clinical and clinical trials of different solid tumors, including advanced HCC. Novel drugs targeting immune checkpoints, such as nivolumab (anti-PD-1), durvalumab (anti-PD-L1), and tremelimumab (anti-CTLA-4) have been shown to be highly effective and relatively safe in monotherapy or in combination treatment of advanced liver cancer. Unlike other immunotherapies, this approach can rouse human anti-tumor immunity by relieving T-cell exhaustion and inhibiting the evasion of HCC by blocking co-inhibitory signaling transduction accurately. In this review, we will provide current knowledge of several major immune checkpoints and summarize recent data from clinical trials that applied immune checkpoint inhibitors alone or in combination. In addition, this review will discuss the limitations and future prospective of immune checkpoint-targeted therapy for advanced HCC.


2021 ◽  
Vol 11 ◽  
Author(s):  
Xiaozhun Huang ◽  
Lin Xu ◽  
Teng Ma ◽  
Xin Yin ◽  
Zhangkan Huang ◽  
...  

BackgroundNivolumab and pembrolizumab disrupt the programmed cell death-1 immune checkpoint and display promising efficacy and safety results in advanced hepatocellular carcinoma (HCC). However, the benefits remain limited. The preliminary results of lenvatinib (LEN) combined with immune checkpoint inhibitors (ICIs) reveal that the combinations were well-tolerated and encouraging. This study aimed to analyze the safety and efficacy of LEN plus ICIs in a real-world cohort of patients with advanced HCC.MethodBetween June 4, 2017, and June 30, 2019, 16 patients received LEN plus nivolumab, and 13 patients were treated with LEN plus pembrolizumab, with the confirmed advanced HCC retrospectively analyzed. The clinical parameters, as well as the outcomes, were assessed.ResultsAll the patients had Barcelona Clinical Liver Cancer Stage C. LEN with ICIs was used as systemic second-, third-, and fourth-line treatments in seven (24.1%), 14 (48.3%), and eight (27.6%) patients, respectively. At the time of data cutoff, six patients (37.5%) were still receiving LEN with nivolumab, while another six patients (46.2%) were still receiving LEN with pembrolizumab. An objective response was recorded in seven patients (25.9%), while the best overall responses were from one complete response and six partial responses. The 6- and 12-month over survival (OS) rates were 62.6% and 53.7%, respectively. Furthermore, the 6- and 12-month progression-free survival (PFS) rates were 43.5% and 31.8%, respectively. In the subgroup analyses, the 6- and 12-month OS and PFS rates for patients treated with LEN plus nivolumab were 62.5% and 52.1%, respectively, and 43.8% and 30.0%, respectively. The 6- and 12-month OS and PFS rates for patients treated with LEN plus pembrolizumab were 51.3% and 51.3%, respectively, and 49.2% and 49.2%, respectively. A total of 11 (31%) deaths were reported in this study, four of which were attributed to grade 5 adverse events presented as fatal treatment-related hepatitis.ConclusionThe combination of LEN and ICIs is a promising new strategy for the treatment of HCC patients. However, high-grade hepatic toxicity was observed and further evaluation of this combination is still required.


2020 ◽  
Vol 14 (1) ◽  
pp. 28
Author(s):  
Daniel M. Girardi ◽  
Jana Priscila M. Pacífico ◽  
Fernanda P. L. Guedes de Amorim ◽  
Gustavo dos Santos Fernandes ◽  
Marcela C. Teixeira ◽  
...  

Advanced hepatocellular carcinoma is a prevalent and potentially aggressive disease. For more than a decade, treatment with sorafenib has been the only approved therapeutic approach. Moreover, no agent has been proven to prolong survival following the progression of disease after sorafenib treatment. However, in recent years, this scenario has changed substantially with several trials being conducted to examine the effects of immunotherapy and novel targeting agents. Several immune checkpoint inhibitors have shown promising results in early-stage clinical trials. Moreover, phase III trials with large cohorts have demonstrated remarkable improvement in survival with the use of new targeted therapies in second-line treatment. Treatment regimens involving the combination of two immune checkpoint inhibitors as well as immune checkpoint inhibitors and anti-angiogenic targeted therapies have shown potential to act synergistically in clinical trials. Recently, the combination of atezolizumab and bevacizumab evaluated in a phase III clinical trial has demonstrated survival superiority in the first-line treatment; it is the new considered standard of care. In this manuscript, we aimed to review the latest advances in the systemic treatment of advanced hepatocellular carcinoma focusing on immunotherapy and targeted therapies.


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