Efficacy and safety of combined targeted therapy and immunotherapy versus targeted monotherapy in older patients with uHCC

Background

The prevalence of hepatocellular carcinoma (HCC) among older patients is rising due to the aging population. This study aimed to compare the efficacy and safety of targeted therapy alone versus its combination with immunotherapy in older patients (≥ 65 years old) with unresectable HCC (uHCC).

Methods

We retrospectively analyzed 158 patients aged ≥ 65 diagnosed with uHCC who received targeted therapy alone or in combination with immunotherapy from the CLEAP database between March 2019 and July 2023. The primary endpoint was overall survival (OS), with secondary endpoints including progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR), and safety assessments for adverse events (AEs).

Results

The ORR was 3.6% in the targeted monotherapy group compared to 29.4% in the combination therapy group, while the DCRs were 53.6% and 54.9%, respectively. Survival analysis indicated a median PFS of 7.3 months for monotherapy versus 13.2 months for combination therapy (P = 0.137) and a median OS of 16.0 months versus 20.0 months, respectively (P = 0.140). AEs occurred in 44.6% of the monotherapy group and 58.8% in the combination therapy group, with 20.5% in the combination group withdrawing due to adverse reactions, significantly higher than in monotherapy group.

Conclusion

Among older patients with uHCC, the combination therapy demonstrated higher ORR and longer PFS and OS, although it had higher incidences of AEs and drug withdrawal.

Multivariable prognostic models for post-hepatectomy liver failure: An updated systematic review

BACKGROUND

Partial hepatectomy continues to be the primary treatment approach for liver tumors, and post-hepatectomy liver failure (PHLF) remains the most critical life-threatening complication following surgery.

AIM

To comprehensively review the PHLF prognostic models developed in recent years and objectively assess the risk of bias in these models.

METHODS

This review followed the Checklist for Critical Appraisal and Data Extraction for Systematic Reviews of Prediction Modelling Studies and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guideline. Three databases were searched from November 2019 to December 2022, and references as well as cited literature in all included studies were manually screened in March 2023. Based on the defined inclusion criteria, articles on PHLF prognostic models were selected, and data from all included articles were extracted by two independent reviewers. The PROBAST was used to evaluate the quality of each included article.

RESULTS

A total of thirty-four studies met the eligibility criteria and were included in the analysis. Nearly all of the models (32/34, 94.1%) were developed and validated exclusively using private data sources. Predictive variables were categorized into five distinct types, with the majority of studies (32/34, 94.1%) utilizing multiple types of data. The area under the curve for the training models included ranged from 0.697 to 0.956. Analytical issues resulted in a high risk of bias across all studies included.

CONCLUSION

The validation performance of the existing models was substantially lower compared to the development models. All included studies were evaluated as having a high risk of bias, primarily due to issues within the analytical domain. The progression of modeling technology, particularly in artificial intelligence modeling, necessitates the use of suitable quality assessment tools.

Strategies for Pain Management in Hepatocellular Carcinoma Patients Undergoing Transarterial Chemoembolisation: A Scoping Review of Current Evidence

Background: Hepatocellular carcinoma (HCC) is a leading cause of cancer-related mortality, with transarterial chemoembolisation (TACE) being a primary treatment for intermediate-stage disease. However, post-procedural pain remains a significant challenge due to inconsistent management practices and a lack of standardised protocols. This scoping review synthesises current evidence on pain management strategies in HCC patients undergoing TACE, evaluates their effectiveness, identifies practice gaps, and proposes optimisation strategies. Methods: A comprehensive database search according to the methodological approach given by Arksey and O'Malley with the aid of the PRISMA-ScR guidelines across Cochrane Library, Web of Science, CINAHL, PubMed, and Scopus was performed. The terms associated with pain, TACE, and liver cancer were included in the search strategy. Two independent researchers systematically screened study titles, abstracts, and full texts and extracted key study characteristics and approaches to pain management. Results: Of 1515 identified studies, 29 met the inclusion criteria. Most (72.7%) focused on pharmacological interventions, with dexamethasone and lidocaine being the most frequently investigated agents. Non-pharmacological approaches, including psychological interventions, physical therapies, music therapy, health education, and comprehensive nursing, were also reported. Pain was primarily assessed using the visual analogue scale (VAS) and numeric rating scale (NRS). Conclusions: Pharmacological interventions, particularly dexamethasone and lidocaine, remain the cornerstone of pain management in TACE, yet consensus on their optimal use is lacking. Non-pharmacological strategies provide complementary benefits. standardised, evidence-based pain management protocols integrating both approaches are needed. Future large-scale, multicentre trials are essential to establish the most effective strategies for optimising patient outcomes.

Pathological Complete Response after Pembrolizumab Treatment for Unresectable Perihilar Cholangiocarcinoma with High Microsatellite Instability: A Case Report

INTRODUCTION

Pembrolizumab has been introduced to solid cancers with microsatellite instability (MSI)-high cases; however, its clinical experience for cholangiocarcinoma remains very limited. Here, we present a case who successfully underwent conversion surgery following pembrolizumab treatment for MSI-high perihilar cholangiocarcinoma, which pathologically exhibited complete response.

CASE PRESENTATION

A 69-year-old male with Bismuth IV perihilar cholangiocarcinoma with bulky lymphadenopathy was referred, who initially required left hepatic trisectionectomy, caudate lobectomy, bile duct resection, and portal vein resection and reconstruction (H123458-B-PV). During the waiting period after preoperative portal vein embolization, the right hepatic artery was involved by rapid tumor progression, needing a modification of the initially scheduled surgical procedure to additional hepatic artery resection and reconstruction (H123458-B-PV-HA). We revised the surgical decision of resectable to locally unresectable disease. He received systemic chemotherapy with gemcitabine and cisplatin as first-line, showing the best effect of stable disease followed by slight tumor progression and re-elevation of tumor marker after 5 courses of treatment. Cancer multi-gene panel analysis using percutaneous biopsy specimen showed the nature of MSI-high. Therefore, he received pembrolizumab treatment as second-line therapy, leading to a drastic downsize >30% in tumor diameter and normalization of the tumor marker as well after only 2 cycles of administration. After confirmation of keeping tumor shrinkage during 22 courses of pembrolizumab treatment without any severe adverse events, we decided to perform conversion surgery and performed left trisectionectomy, caudate lobectomy, and bile duct resection with portal vein resection (H123458-B-PV). Although the right hepatic artery was extensively fibrotic, there was no evidence of malignancy by frozen section histologic diagnosis. The pathological findings showed pathological complete response with no residual tumor cells. The patient is under periodical checkup without adjuvant chemotherapy, and no tumor recurrence was observed at 4 months postoperatively.

CONCLUSIONS

We experienced clinical partial response but pathological complete response after second-line pembrolizumab treatment for unresectable locally advanced perihilar cholangiocarcinoma with a biologic nature of MSI-high. Conversion surgery may be considered as a promising option for such effective case, whereas there is a possibility to avoid resection in the MSI-high setting.

Targeting Metabolism: Innovative Therapies for MASLD Unveiled

The recent introduction of the term metabolic-dysfunction-associated steatotic liver disease (MASLD) has highlighted the critical role of metabolism in the disease's pathophysiology. This innovative nomenclature signifies a shift from the previous designation of non-alcoholic fatty liver disease (NAFLD), emphasizing the condition's progressive nature. Simultaneously, MASLD has become one of the most prevalent liver diseases worldwide, highlighting the urgent need for research to elucidate its etiology and develop effective treatment strategies. This review examines and delineates the revised definition of MASLD, exploring its epidemiology and the pathological changes occurring at various stages of the disease. Additionally, it identifies metabolically relevant targets within MASLD and provides a summary of the latest metabolically targeted drugs under development, including those in clinical and some preclinical stages. The review finishes with a look ahead to the future of targeted therapy for MASLD, with the goal of summarizing and providing fresh ideas and insights.

Cost-effectiveness analysis of pembrolizumab plus chemotherapy as first-line treatment for advanced biliary tract cancer: perspectives from US and Chinese payers

BACKGROUND

The KEYNOTE-966 study demonstrated that pembrolizumab combined with chemotherapy is more effective than chemotherapy alone as first-line treatment for patients with advanced biliary tract cancer (BTC). However, the cost-effectiveness of pembrolizumab combined with chemotherapy in the USA and China remains uncertain.

OBJECTIVE

This study aimed to evaluate the cost-effectiveness of pembrolizumab plus chemotherapy compared with placebo plus chemotherapy from the perspective of US and Chinese payers.

DESIGN

Markov models with three health states were developed to simulate the process of advanced BTC. Cost data were obtained from available databases and published literature in the US scenario, and from local institutions from the China scenario. Utility values were derived from previous studies.

OUTCOME MEASURES

Primary outcomes included quality-adjusted life years (QALYs) and incremental cost-effectiveness ratios (ICERs).

RESULTS

In the US scenario, pembrolizumab plus chemotherapy increased costs by US$97,222.13, compared with chemotherapy alone, with a gain of 0.12 QALYs, resulting in an ICER of US$810 184.42 per QALY. In the China scenario, the ICER was $360 933.50 per QALY. Sensitivity analyses indicated the costs of pembrolizumab had the greatest impact on the model in both scenarios. Further analyses suggested that the optimal price of pembrolizumab in the USA would be nearly US$10.33 /mg, while a price reduction of over 90% would be required for the combined therapy to be cost-effective for patients in China.

CONCLUSION

Based on the willingness-to-pay threshold set at three times the gross domestic product per capita, pembrolizumab plus chemotherapy is not a cost-effective option for patients with advanced BTC in either the USA or China. Significant price reduction for pembrolizumab may be necessary to achieve an acceptable ICER.

TRIAL REGISTRATION NUMBER

NCT04003636; postresults.

Adjuvant chemotherapy compared with observation in patients with resected biliary tract cancer: A systematic review and meta-analysis of randomized controlled trials

OBJECTIVES

Several randomized controlled trials compared adjuvant systemic chemotherapy with observation in patients with resected biliary tract cancer (BTC) have yielded inconsistent outcomes. In order to assess the efficacy of adjuvant therapy in these patients, we conducted this systematic review and meta-analysis.

METHODS

We conducted a thorough search in various databases, which included MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, ASCO Abstracts, ESMO Abstracts and ClinicalTrials.gov. All relevant randomized controlled trials investigating the adjuvant chemotherapy compared with observation in resected biliary tract cancer were identified. The primary outcome of interest was overall survival (OS), while secondary outcome was relapse-free survival (RFS). Statistical analyses were conducted using Review Manager 5.3. Additionally, publication bias was evaluated using Egger's test in Stata 12.0.

RESULTS

A total of 5 randomized controlled trials, involving 1406 patients, were included in this analysis. Compared with observation, adjuvant chemotherapy improved RFS [HR 0.84 (0.73-0.96), p=0.01] (I2=0%, p=0.89) but not OS [HR 0.89 (0.77-1.03), p=0.12] (I2=51%, p=0.09) in the entire population after BTC resection. Subgroup analyses revealed that adjuvant chemotherapy did improve both OS [HR 0.76 (0.62-0.93), p=0.009] (I2=7%, p=0.37) and RFS [HR 0.74 (0.58-0.95), p=0.02] (I2=0%, p=0.39) in patients with lymph node positivity. Furthermore, patients receiving oral fluoropyrimidine monotherapy showed benefit from the adjuvant therapy, with longer OS [HR 0.78 (0.65-0.94), p=0.009] (I2=2%, p=0.31) and RFS [HR 0.81 (0.68-0.95), p=0.01] (I2=0%, p=0.95).

CONCLUSIONS

To conclude, adjuvant chemotherapy have the potential to offer advantages in patients with resected BTC. Specifically, patients demonstrating positive lymph node status have a higher likelihood of benefiting from adjuvant therapy. Our analysis supports the current standard of care of adjuvant fluoropyrimidine. However, the recommendation of oral fluoropyrimidine monotherapy as the preferred option is not definitive, as it is based on limited studies. Further validation of these outcomes is necessary by conducting extensive randomized controlled trials.

Conversion treatment for advanced intrahepatic cholangiocarcinoma: Opportunities and challenges

The prevalence of intrahepatic cholangiocarcinoma (ICC) is increasing globally. Despite advancements in comprehending this intricate malignancy and formulating novel therapeutic approaches over the past few decades, the prognosis for ICC remains poor. Owing to the high degree of malignancy and insidious onset of ICC, numerous cases are detected at intermediate or advanced stages of the disease, hence eliminating the chance for surgical intervention. Moreover, because of the highly invasive characteristics of ICC, recurrence and metastasis postresection are prevalent, leading to a 5-year survival rate of only 20%-35% following surgery. In the past decade, different methods of treatment have been investigated, including transarterial chemoembolization, transarterial radioembolization, radiotherapy, systemic therapy, and combination therapies. For certain patients with advanced ICC, conversion treatment may be utilized to facilitate surgical resection and manage disease progression. This review summarizes the definition of downstaging conversion treatment and presents the clinical experience and evidence concerning conversion treatment for advanced ICC.

Ganoderic acid a potentiates cisplatin's cytotoxicity on gallbladder cancer cells by promoting DNA damage and inhibiting cell stemness

BACKGROUND

Ganoderma acid A (GAA), a triterpenoid compound from Ganoderma lucidum, has gained attention for its anti-tumor properties. Herein, we hypothesized that GAA may enhance cisplatin's (DDP) anticancer effect in gallbladder cancer (GBC) cells by promoting DNA damage response, particularly through upregulation of DNA damage markers such as γH2AX, p-ATM, p-ATR, and p-p53, and reducing cell stemness by downregulating stemness markers like SOX2, Oct4, and NANOG.

MATERIALS AND METHODS

The human GBC cell line GBC-SD and human gallbladder epithelial cell line HGBEC were cultured in RPMI-1640 and DMEM/F12 media with 10% fetal bovine serum. Cells were treated with 2 µM DDP and 60 µM GAA for 24 h. To evaluate the toxicity of GAA in normal cells, HGBEC cells were treated under the same conditions. Cell viability was assessed by CCK-8 assay, and colony formation was measured in 6-well plates. Apoptosis was evaluated by TUNEL assay, and DNA damage was assessed using comet assay. Stemness was analyzed by spheroid formation and CD44 immunofluorescence staining. Western blot analysis was performed to evaluate the expression of apoptotic, stemness, and DNA damage markers (Bax/Bcl-2, cleaved-caspase 3, SOX2, Oct4, NANOG, γH2AX, p-ATM, p-ATR, p-p53).

RESULTS

The results showed that GAA significantly reduced GBC-SD cell viability in a concentration-dependent manner (p < 0.05). The combined treatment of GAA and DDP further decreased cell viability, with the DDP IC50 value reduced from 8.98 µM to 4.07 µM (p < 0.05). Colony formation was significantly inhibited (p < 0.05), and apoptosis increased, as assessed by TUNEL assay (p < 0.05). Western blot analysis revealed increased pro-apoptotic proteins Bax/Bcl-2 and cleaved-caspase 3(p < 0.05). The expression of stemness markers SOX2, Oct4, NANOG, and DNA damage markers γH2AX, p-ATM, p-ATR, and p-p53 was significantly altered (p < 0.05). Specifically, p53 expression was significantly increased, indicating enhanced DNA damage response (p < 0.05).

CONCLUSION

GAA can significantly enhance the anticancer effects of DDP on GBC cells by inhibiting DNA damage response and cell stemness, supporting GAA as an adjuvant treatment for GBC and warrants further validatory preclinical studies.

Cancer chemoprevention: signaling pathways and strategic approaches

Although cancer chemopreventive agents have been confirmed to effectively protect high-risk populations from cancer invasion or recurrence, only over ten drugs have been approved by the U.S. Food and Drug Administration. Therefore, screening potent cancer chemopreventive agents is crucial to reduce the constantly increasing incidence and mortality rate of cancer. Considering the lengthy prevention process, an ideal chemopreventive agent should be nontoxic, inexpensive, and oral. Natural compounds have become a natural treasure reservoir for cancer chemoprevention because of their superior ease of availability, cost-effectiveness, and safety. The benefits of natural compounds as chemopreventive agents in cancer prevention have been confirmed in various studies. In light of this, the present review is intended to fully delineate the entire scope of cancer chemoprevention, and primarily focuses on various aspects of cancer chemoprevention based on natural compounds, specifically focusing on the mechanism of action of natural compounds in cancer prevention, and discussing in detail how they exert cancer prevention effects by affecting classical signaling pathways, immune checkpoints, and gut microbiome. We also introduce novel cancer chemoprevention strategies and summarize the role of natural compounds in improving chemotherapy regimens. Furthermore, we describe strategies for discovering anticancer compounds with low abundance and high activity, revealing the broad prospects of natural compounds in drug discovery for cancer chemoprevention. Moreover, we associate cancer chemoprevention with precision medicine, and discuss the challenges encountered in cancer chemoprevention. Finally, we emphasize the transformative potential of natural compounds in advancing the field of cancer chemoprevention and their ability to introduce more effective and less toxic preventive options for oncology.

GPX2 inhibition enhances antitumor efficacy of lenvatinib via promoting immunogenic cell death in hepatocellular carcinoma

BACKGROUND

Immunogenic cell death (ICD) is a distinct subtype of regulatory cell death, and represents a potential mechanism to remodel the tumor microenvironment. Lenvatinib is established as the first-line therapy for advanced hepatocellular carcinoma (HCC), but drug resistance limits its efficiency. Our previous research showed that lenvatinib can inhibit GPX2 expression and induce reactive oxygen species (ROS)-related cell apoptosis in HCC. The present study intends to explore whether lenvatinib can induce ICD and clarify its underlying mechanisms in HCC.

METHODS

Flow cytometry was utilized to detect the expression levels of CRT and CD markers, measure intracellular ROS levels, and assess cell apoptosis. Western blot analysis was employed to determine changes in protein levels, while qRT-PCR analysis was used to quantify alterations in mRNA levels. Subcutaneous allograft tumor models were established to investigate the mechanism of lenvatinib against HCC. Immunohistochemical (IF) staining were used to detect the ratio of CD8+GZMB+ cells.

RESULTS

Herein, we found that HCC cells treated with lenvatinib or si-GPX2 showed increased ICD markers, such as CRT exposure, ATP secretion, and HMGB1 release. Notably, we demonstrated that lenvatinib promoted dendritic cells (DCs) maturation and CD8+ T cells activation, thus inducing HCC cell apoptosis when co-cultured with peripheral blood mononuclear cells. Additionally, we further demonstrated that lenvatinib or GPX2 inhibition triggers endoplasmic reticulum stress (ERS) in HCC cells, which is mediated by the accumulation of ROS. Our findings indicate that pre-treatment with the antioxidant N-acetylcysteine suppressed lenvatinib-induced expression of CRT on the cell membrane, ATP secretion and HMGB1 release, and inhibited lenvatinib-induced cell apoptosis. Furthermore, we also found that ERS inhibitor ISRIB could reverse lenvatinib-induced upregulation of ICD biomarkers. Moreover, we further identified that downregulation of GPX2 enhanced the efficacy of lenvatinib via triggering ERS-mediated ICD in HCC.

CONCLUSIONS

This study uncovered that lenvatinib could be a potent ICD inducer, which could trigger ERS via increasing ROS levels in HCC cells, which present valuable insights into the mechanism of lenvatinib-induced ICD in HCC cells. Collectively, our findings highlight the significant therapeutic potential of the combination of targeting GPX2 and treatment with lenvatinib for HCC.

Post-treatment adverse events ranking in targeted immunotherapy for hepatocellular carcinoma: A network meta-analysis based on risk probability assessment

BACKGROUND

Despite the rapid evolution of targeted and immunotherapies for hepatocellular carcinoma (HCC), a systematic comparison of their adverse event profiles remains limited. This review addresses this critical gap by synthesizing data from 13 randomized controlled trials (RCTs) to prioritize treatment regimens on the basis of safety, thereby guiding clinical decision-making in an era of expanding therapeutic options.

METHODS

Clinical studies focusing on targeted and immunotherapies in HCC patients were chosen from databases such as PubMed, Embase, Web of Science and the Cochrane Library, which spans from 2008 to 2023. Data processing and evaluation followed PRISMA guidelines, with a random-effects model employed to merge the data. Network models were then developed, with adverse events serving as the primary endpoint for analysis.

RESULTS

A comprehensive review of the relevant literature was conducted, identifying 13 randomized controlled trials (RCTs) encompassing 13 treatment protocols for HCC. This study included a total of 10,760 patients. Adverse events within the same category were initially consolidated, followed by the sequential construction of a network model to assess the risk probabilities associated with different targeted immunotherapy regimens for various adverse events and establish priority rankings.

CONCLUSIONS

Cabozantinib, camrelizumab, and their combination therapy for HCC are associated with a higher incidence of common adverse reactions, whereas durvalumab, lenvatinib, and their combination therapy are less likely to cause common adverse effects.

The safety and efficacy of atezolizumab for recurrent primary liver cancer after liver transplantation

BACKGROUND

Immune checkpoint inhibitors (ICIs) have been proved to have certain therapeutic effects for primary liver cancer. However, the efficacy and safety of their applications in liver transplantation (LT) recipients with recurrent tumor remained unclear and even controversial.

METHODS

A retrospective study was conducted to evaluate the safety and efficacy of atezolizumab in LT recipients with recurrent PLC from August 1, 2019, to July 1, 2022. The primary endpoint was the incidence of allograft rejection, while secondary endpoints included overall response rate (ORR), progression-free survival (PFS), and overall survival (OS). Additionally, risk factors associated with ICI-related rejection were analyzed.

RESULTS

A total of eight LT recipients with recurrent PLC were included in the study, comprising six cases of hepatocellular carcinoma (HCC) and two cases of intrahepatic cholangiocarcinoma (ICC). The median number of atezolizumab treatment cycles was 3 (range, 1-10). Graft rejection occurred in 25% of patients (2/8). The median overall survival (mOS) from the initiation of atezolizumab was 6.2 months (range, 0.7-12.5 months), with a mortality rate of 75% (6/8). The ORR (complete response [CR] + partial response [PR]) was 28.5% (2/7), and the disease control rate (DCR; CR + PR + stable disease [SD]) was 42.9% (3/7). Time from LT to recurrence (P = 0.008) and Interval time from LT to atezolizumab (P = 0.005) were associated with liver rejection.

CONCLUSIONS

Atezolizumab demonstrated a certain degree of efficacy as a salvage treatment for patients with recurrent HCC and ICC after LT. However, given the potential risk of allograft rejection, careful evaluation of safety is essential before initiating ICI therapy. Moreover, close monitoring and timely intervention are necessary during treatment to mitigate the risk of rejection. Future studies should further explore the optimal timing and strategies for ICI administration in this patient population.

Comparative efficacy of tislelizumab plus lenvatinib and tislelizumab alone against advanced hepatocellular carcinoma after lenvatinib failure: a real-world study

This study evaluated the effectiveness and safety of tislelizumab plus lenvatinib (TL group) and tislelizumab monotherapy (T group) in patients with stage C hepatocellular carcinoma (HCC) according to the Barcelona Clinic Liver Cancer (BCLC) staging system after lenvatinib failure, and it analyzed the factors influencing the effectiveness of TL as a second-line treatment. This retrospective analysis involved 51 patients treated at a single center between January 2019 and July 2023. Survival outcomes and tumor responses were compared between the TL and T monotherapy groups. Prognostic factors for overall survival (OS) and progression-free survival (PFS) were identified using Cox proportional hazard regression models. Among patients with BCLC stage C advanced HCC who experienced lenvatinib treatment failure, median PFS was significantly longer in the TL group than in the T group (6.8 months vs. 4.5 months, p = 0.003), and OS was notably extended in the TL group (14.0 months vs. 10.4 months, p = 0.012). Although the disease control rate (64% vs. 53.8%, p = 0.461) and objective response rate (20% vs. 7.7%, p = 0.202) were numerically higher in the TL group, these differences did not reach significance. Child-Pugh B liver function and tislelizumab monotherapy were independent prognostic factors for poor OS, whereas only tislelizumab monotherapy was an independent prognostic factor for poor PFS, Child-Pugh B was not a prognostic factor for PFS. Subgroup analysis demonstrated the OS benefit of tislelizumab plus lenvatinib in patients with Child-Pugh A liver function (14.0 months vs. 12.0 months, p = 0.013) but not in those with Child-Pugh B liver function (7.7 months vs. 6.1 months, p = 0.225). In the TL group, the most frequent treatment-related adverse events (AEs) were hand-foot skin reaction (32%), hypertension (28%), diarrhea (32%), and hypothyroidism (20%). Grade 3 or higher AEs occurred in 24% of patients in the TL group, and hand-foot skin reaction and diarrhea were the most frequent grade 3 or higher AEs. The incidence of AEs was comparable between the two groups. As a second-line treatment, the combination of tislelizumab and lenvatinib was well tolerated and associated with improved OS and PFS versus tislelizumab alone for patients with advanced HCC, particularly in those with Child-Pugh A liver function.

Targeting TIME in advanced hepatocellular carcinoma: Mechanisms of drug resistance and treatment strategies

Hepatocellular carcinoma (HCC) is the predominant form of primary liver cancer. While early-stage HCC can be effectively managed with surgical resection and other interventions, treatment options for advanced HCC are limited. Current systemic treatments for advanced HCC include VEGF-targeted tyrosine kinase inhibitors (Sorafenib, Lenvatinib), and the combination therapy of anti PD-1/PD-L1 and anti VEGF (Atezolizumab plus Bevacizumab, Camrelizumab plus Rivoceranib). However, the lack of response to these drugs and the emergence of acquired drug resistance significantly impairs their efficacy. Numerous studies have demonstrated that the tumor immune microenvironment (TIME) plays a crucial role in modulating the response to these therapies. Various immune cells and their secreted factors within the TIME play a pivotal role in the emergence of secondary drug resistance in HCC. This article reviews the mechanism of TIME promoting drug resistance, discusses the influence of current systemic HCC treatment drugs on TIME, and evaluates how these TIME changes affect the efficacy of treatment. A deeper understanding of the interaction between TIME and systemic treatment drugs may be beneficial to enhance the treatment effect, mitigate drug resistance of advanced HCC, and ultimately improve the prognosis of patients.

Efficacy and safety of radiotherapy combined with immune checkpoint inhibitors for advanced or unresectable hepatocellular carcinoma: A systematic review and meta-analysis

BACKGROUND

To evaluate the efficacy and safety of radiotherapy with immune checkpoint inhibitors (ICIs), with or without anti-vascular endothelial growth factor (anti-VEGF) agents, in the treatment of advanced or unresectable hepatocellular carcinoma (HCC).

METHODS

Databases including Web of Science, PubMed, Embase, Cochrane Library databases, American Society of Clinical Oncology, and European Society for Medical Oncology were systematically searched. The search included publications up to August 31, 2024. Primary outcome measures included objective response rate (ORR), disease control rate (DCR), incidence of treatment-related adverse events (TRAEs), and TRAEs (grade ≥3).

RESULTS

Twenty-one articles were included in this study (927 participants). Following RECIST 1.1, for external radiotherapy combined with ICIs, the ORR and DCR were 56 % (95 % CI 0.48-0.64, I2=65.91 %) and 88 % (95 % CI 0.77-0.96, I2=87.19 %), respectively; for yttrium-90 combined with ICI, they were 31 % (95 %CI 0.20-0.43, I2=0 %) and 73 % (95 %CI 0.48-0.92, I2=75.23 %), respectively. According to CTCAE criteria, for external radiotherapy combined with ICIs, the incidence of TRAEs (all grades) was 95 % (95 % CI 0.89-0.98, I2=70.79 %), and the incidence of TRAEs (grades ≥3) was 35 % (95 % CI 0.23-0.48, I2=87.54 %); for yttrium-90 combined with ICIs, they were 78 % (95 %CI 0.48-0.98, I2=88.15 %) and 22 % (95 %CI 0.04-0.47, I2=83.69 %), respectively. Subgroup analyses indicated that sequential therapy demonstrated a higher DCR than concurrent therapy, while the combination of intensity-modulated radiotherapy, ICIs, and anti-VEGF agents showed improved efficacy but was associated with increased toxicity.

CONCLUSIONS

Radiotherapy combined with ICI demonstrates substantial efficacy and manageable safety in advanced or unresectable HCC. Sequential therapy may enhance therapeutic effectiveness while reducing TRAEs.

The Terry Fox Research Institute Marathon of Hope Cancer Centres Network: A pan-Canadian precision oncology initiative

The Marathon of Hope Cancer Centres Network (MOHCCN), led by the Terry Fox Research Institute and the Terry Fox Foundation, unites researchers, clinicians, patients, funders, and other partners across Canada to accelerate precision oncology, promote collaboration and data sharing, and ultimately improve patient outcomes. This overview outlines the Network's goals, history, and challenges and opportunities. We also highlight progress toward the "MOHCCN Gold Cohort," a shared resource of clinical and genomic data from 15,000 patients.

BIRC2 blockade facilitates immunotherapy of hepatocellular carcinoma

BACKGROUND

The effectiveness of immunotherapy in hepatocellular carcinoma (HCC) is limited, however, the molecular mechanism remains unclear. In this study, we identified baculoviral IAP repeat-containing protein 2 (BIRC2) as a key regulator involved in immune evasion of HCC.

METHODS

Genome-wide CRISPR/Cas9 screening was conducted to identify tumor-intrinsic genes pivotal for immune escape. In vitro and in vivo models demonstrated the role of BIRC2 in protecting HCC cells from immune killing. Then the function and relevant signaling pathways of BIRC2 were explored. The therapeutic efficacy of BIRC2 inhibitor was examined in different in situ and xenograft HCC models.

RESULTS

Elevated expression of BIRC2 correlated with adverse prognosis and resistance to immunotherapy in HCC patients. Mechanistically, BIRC2 interacted with and promoted the ubiquitination-dependent degradation of NFκB-inducing kinase (NIK), leading to the inactivation of the non-canonical NFκB signaling pathway. This resulted in the decrease of major histocompatibility complex class I (MHC-I) expression, thereby protecting HCC cells from T cell-mediated cytotoxicity. Silencing BIRC2 using shRNA or inhibiting it with small molecules increased the sensitivity of HCC cells to immune killing. Meanwhile, BIRC2 blockade improved the function of T cells both in vitro and in vivo. Targeting BIRC2 significantly inhibited tumor growth, and enhanced the efficacy of anti-programmed death protein 1 (PD-1) therapy.

CONCLUSIONS

Our findings suggested that BIRC2 blockade facilitated immunotherapy of HCC by simultaneously sensitizing tumor cells to immune attack and boosting the anti-tumor immune response of T cells.

The evolving landscape of biomarkers for systemic therapy in advanced hepatocellular carcinoma

Hepatocellular carcinoma (HCC) remains one of the most prevalent and deadliest cancers. With the approval of multiple first- and second-line agents, especially the combination therapies based on immune checkpoint inhibitor (ICI) regimens, the landscape of systemic therapy for advanced HCC (aHCC) is more diverse than ever before. The efficacy of current systemic therapies shows great heterogeneity in patients with aHCC, thereby identifying biomarkers for response prediction and patient stratification has become an urgent need. The main biomarkers for systemic therapy in hepatocellular carcinoma are derived from peripheral blood, tissues, and imaging. Currently, the understanding of the clinical response to systemic therapy indicates unequivocally that a single biomarker cannot be used to identify patients who are likely to benefit from these treatments. In this review, we provide an integrated landscape of the recent development in molecular targeted therapies and ICIs-based therapies, especially focusing on the role of clinically applicable predictive biomarkers. Additionally, we further highlight the latest advancements in biomarker-driven therapies, including targeted treatments, adoptive cell therapies, and bispecific antibodies.

BilT03: Phase 1b/2 multicenter trial of nivolumab with 5-fluorouracil and liposomal irinotecan for previously treated advanced biliary tract cancer

BACKGROUND

Second-line chemotherapy with 5-fluorouracil/leucovorin (5FULV) and liposomal irinotecan improves survival in advanced biliary tract cancer (BTC). In this phase 1b/2 trial, we investigated the combination of 5FULV and liposomal irinotecan with nivolumab following progression on first-line chemotherapy for advanced BTC.

METHODS

Patients received 2,400 mg/m2 5-fluorouracil, leucovorin (dose level: 0:400 or -1:200 mg/m2), 70 mg/m2 liposomal irinotecan, and 240 mg nivolumab every 2 weeks (ClinicalTrials.gov: NCT03785873). The phase 1b and 2 primary objectives included recommended phase 2 dose (RP2D) and median progression-free survival (PFS; null and alternative hypotheses of 2.9 and 5.0 months) with a two-sided alpha of 0.05 and >80% power. Secondary objectives were safety, objective response rate (ORR), and overall survival (OS).

FINDINGS

Of 30 patients with a median age of 63.5 years, 18 (60%) were men, 25 (83%) were White, 16 (53%) had an ECOG performance status of 0, and 19 (63.3%) had intrahepatic cholangiocarcinoma. In phase 1b, the RP2D was dose level 0 after a dose-limiting toxicity event of enterocolitis (n = 1). Median PFS was 4.1 months (95% confidence interval [CI], 1.9-9.9). The ORR was 16.7% (5 partial responses) per irRECIST, the median OS was 7.4 months (95% CI, 5.7-15.9), and the 24-month survival rate was 23.3%. The most common grade ≥3 treatment-related adverse events were diarrhea (5; 16.7%), fatigue (4; 13.3%), and neutropenia (3; 10%).

CONCLUSIONS

Treatment was well tolerated, but the primary endpoint was not met. The median OS was similar to prior trials with this drug combination, but the 24-month survival rate was higher than expected.

FUNDING

This work was funded by Ipsen Biopharmaceuticals, Bristol-Myers Squibb (CA209-8LF), and the University of Michigan Rogel Cancer Center (P30CA046592).

Claudin 18.2: a promising actionable target in biliary tract cancers

BACKGROUND AND PURPOSE

Anti-claudin 18.2 (anti-CLDN18.2) therapy has been approved for patients with CLDN18-positive gastric and gastroesophageal junction adenocarcinomas. The current study aims at evaluating the expression of CLDN18 in a large cohort of pathologically characterized biliary tract cancers (BTCs).

MATERIALS AND METHODS

A series of 237 BTCs were collected and reviewed under the BITCOIN protocol. All samples were assessed for CLDN18 status using immunohistochemistry (clone 43-14A). Tumor positivity for CLDN18 was determined if ≥75% of tumor cells exhibited moderate-to-strong membranous staining.

RESULTS

CLDN18 expression was found in 29.5% of BTCs (70/237), with the highest rates in gallbladder carcinoma (GBC; 62.5%; 20/32) and extrahepatic cholangiocarcinoma (eCCA; 53.4%; 31/58), compared with intrahepatic cholangiocarcinoma (iCCA; 12.9%; 19/147) (P < 0.0001). CLDN18 positivity was detected in 5.5% of cases (13/237), most common in GBC (15.6%; 5/32), followed by eCCAs (8.6%; 5/58) and iCCAs (2.0%; 3/147) (P = 0.0045). Most CLDN18-positive samples (10/13) exhibited a heterogenous staining pattern. In iCCAs, large duct subtypes had higher CLDN18 expression [33.3% (10/30) versus 7.7% (9/117), P = 0.0002] and positivity [6.7% (2/30) versus 0.9% (1/117), P = 0.106] than small duct iCCAs. No significant differences were observed across GBC and eCCA histotypes, and CLDN18 was not associated with IDH1 or FGFR2 status in iCCAs.

CONCLUSIONS

This study demonstrates that CLDN18 expression is present in a subset of BTCs, with significantly higher positivity rates in GBCs and eCCAs compared with iCCAs. In iCCAs, CLDN18 expression was more frequent in the large duct subtype but was not associated with IDH1 or FGFR2 status. These findings suggest that CLDN18 could be a potential therapeutic target in BTCs, warranting further prospective studies to evaluate its clinical significance and impact on patient outcomes.

Current applications of radiomics in the assessment of tumor microenvironment of hepatocellular carcinoma

The tumor microenvironment (TME) of hepatocellular carcinoma (HCC) has garnered significant attention, especially with the rise of immunotherapy as a treatment strategy. Radiomics, an innovative technique, offers valuable insights into the intricate structure of the TME. This review highlights recent advancements in radiomics for analyzing the HCC TME, identifies key areas that warrant further research, and explores comprehensive multi-omics approaches that extend the potential of radiomics to new frontiers.

Research status and frontiers in liver cancer immunotherapy: a bibliometric perspective on highly cited literature

Background

Liver cancer is one of the major causes of cancer-related death in the world. As a breakthrough therapy, immunotherapy had significantly improved the prognosis of patients. However, the current research status and research hotspots in the field of liver cancer immunotherapy still lack systematic review. Based on the bibliometric analysis of highly cited papers, this study intended to reveal the current research status, research hotspots and future research trends in this field.

Objective

The purpose of this study was to analyze the national/regional contributions, authors and institutions cooperation network, keywords clustering and keywords burst analysis of highly cited papers on liver cancer immunotherapy through bibliometrics, so as to clarify the research frontier and development direction, and provide objective data support for future research direction and clinical practice.

Methods

The highly cited papers on liver cancer immunotherapy from the Web of Science core collection up to February 23, 2025 were retrieved, and 232 studies were included. CiteSpace was used to build a knowledge map, analyze the distribution of years, countries, authors, institutions and cooperation networks, and identify research hotspots and emerging trends through keyword clustering and burst detection.

Results

The number of highly cited papers continued to increase from 2014 and reached a peak in 2022. China and the United States had the highest number of publications and the centrality of cooperation networks. The author with the highest number of papers was Llovet, Josep M, whose research direction mainly focused on immune checkpoint inhibitor combination therapy and molecular typing. The author with the highest cooperation network centrality was Duda, Dan G, whose research team focused on tumor microenvironment regulation. Harvard University and the University of Barcelona played an important central role in the institutional collaboration. Keywords analysis showed that immune checkpoint inhibitors, tumor microenvironment and combination therapy were the core of liver cancer immunotherapy. Burst keywords such as cell lung cancer, pembrolizumab, advanced melanoma, blockade, lymphocytes, etc. had revealed the research frontier of liver cancer immunotherapy research.

Conclusion

The research on liver cancer immunotherapy had made multi-dimensional progress, with China and the United States leading the global cooperation. The main research directions were the combination strategy of immunization, the regulation of tumor microenvironment and the exploration of novel targets. In the future, it is necessary to optimize treatment resistance solutions, integrate interdisciplinary resources, and promote the development of precision and personalized treatment.

Characterization of Cardiovascular Events and Prognosis in Immune Checkpoint Inhibitor-Related Myocarditis

OBJECTIVE

To evaluate the incidence, timing, and characteristics of immune checkpoint inhibitor-related myocarditis (ICIrM) and associated cardiovascular events at 3-year follow-up.

METHODS

All patients treated with immune checkpoint inhibitors (ICIs) at a multicenter institution from 2011 to 2022 were retrospectively reviewed for ICIrM. A propensity score-matched control group was identified from patients treated with ICIs without development of myocarditis (ratio of 1:4). Baseline characteristics, cardiovascular events, and mortality outcomes were manually curated during extended 3-year follow-up. Major adverse cardiovascular events (MACE) were defined as transient ischemic attack/stroke, heart failure, and myocardial infarction.

RESULTS

Of 5423 patients treated with ICIs, ICIrM occurred in 59 (1.1%), and 236 propensity score-matched patients who received ICIs without myocarditis were identified as controls. Mean age was 68.5 ± 12.3 years; 65.4% were male. Median time to development of ICIrM was 44 days (interquartile range, 28 to 102 days), with median troponin value of 364 ng/L (interquartile range, 115 to 1224 ng/L). Patients with ICIrM had increased risk of cardiac death (hazard ratio [HR], 34.0; 95% CI, 7.8 to 148.0; P<.001), MACE (HR, 5.0; 95% CI, 3.1 to 8.1; P<.001), ventricular tachycardia (HR, 12.3; 95% CI, 1.3 to 118.4; P=.03), and complete heart block (HR, 2.3; 95% CI, 1.0 to 5.1; P=.046); these occurred predominantly within 120 days after diagnosis of ICIrM. Triple-M syndrome (myocarditis, myasthenia, and myositis) occurred in 12 (20.3%), with increased risk for all-cause mortality (HR, 2.1; 95% CI, 1.0 to 4.1; P=.04) but not for cardiac death or MACE.

CONCLUSION

Immune checkpoint inhibitor-related myocarditis is associated with increased cardiovascular events that are further characterized on extended follow-up, with most occurring in the first 4 months after diagnosis.

Comparison of monotherapy and combination therapy for older patients with advanced biliary tract cancer: a retrospective study

BACKGROUND

The current standard first-line treatment for patients with advanced biliary tract cancer (BTC) is a combination chemotherapy regimen. However, whether the efficacy of combination therapy is superior to that of monotherapy in older patients with BTC remains unclear. Therefore, in this study, we aimed to compare the efficacy and safety of monotherapy with those of combination therapy in such patients.

METHODS

We retrospectively enrolled 157 patients with unresectable or recurrent BTC aged ≥ 75 years who received systemic chemotherapy between August 2011 and November 2020. We compared the efficacy and safety of combination therapy (gemcitabine [GEM] + cisplatin and GEM + S-1) with those of monotherapy (GEM or S-1 alone). We assessed patients' characteristics, survival, adverse events, and dose intensity. Statistical significance was set at p < 0.05.

RESULTS

Patients who received monotherapy were older and had worse performance status (PS), lower albumin levels, and higher carcinoembryonic antigen (CEA) levels than those who received combination therapy. The median overall survival (OS) was 16.4 and 12.8 months in the combination therapy and monotherapy groups, respectively (Hazard ratio [HR], 0.69; 95% confidence interval [CI], 0.47-1.01), with a trend towards longer OS observed with combination therapy. However, multivariable analysis did not show superior OS with combination therapy (HR, 1.05; 95% CI, 0.66-1.68). Multivariable analysis also revealed gallbladder cancer, CEA, neutrophil-to-lymphocyte ratio (NLR), and C-reactive protein (CRP) levels as prognostic factors for OS. Regarding safety, the incidence of grade ≥ 3 adverse events was significantly higher in the combination therapy group than in the monotherapy group (79% vs. 53%, p = 0.001); however, the rate of treatment discontinuation was approximately 10% in both groups, with no treatment-related deaths, suggesting that toxicities are manageable even in older patients.

CONCLUSIONS

Combination therapy is not necessarily recommended for older patients with BTC. Selecting an appropriate chemotherapy regimen based on an individual's condition is important.

Gemcitabine: immunomodulatory or immunosuppressive role in the tumor microenvironment

Gemcitabine (GEM), a nucleoside analog chemotherapy agent, has been widely used in the treatment of various cancers. In recent years, there has been growing interest in understanding the immunomodulatory or immunosuppressive effects of GEM. The immunomodulatory roles of GEM could influence the anti-tumor immune responses via several mechanisms, such as modulation of antigen presentation, cytokine production, and immune cell population. Furthermore, there is evidence that GEM enhances the therapeutic efficacy of immunotherapies, including oncolytic viruses, immune checkpoint inhibitors, CAR T-cells, and therapeutic vaccines. On the other hand, accumulating evidence also proposed that GEM may act as an immunosuppressive agent within the tumor microenvironment, resulting in immune evasion of tumor cells and tumor growth. These paradoxical roles of GEM in modifying immune responses highlight the complexity of GEM interaction with immune cells and responses within the tumor microenvironment. This review aims to provide an overview of the immunomodulatory and immunosuppressive effects of GEM within the tumor microenvironment and how GEM affects the efficacy of cancer immunotherapy.

Molecular targeted maintenance therapy versus standard of care in advanced biliary cancer: an international, randomised, controlled, open-label, phase III umbrella trial (SAFIR-ABC10-Precision Medicine)

BACKGROUND

Advanced biliary tract cancers (ABCs) are a heterogeneous group of rare malignancies of the bile ducts and gall-bladder with a poor prognosis and limited treatment options. Cisplatin-gemcitabine (CISGEM) chemotherapy plus immunotherapy (durvalumab or pembrolizumab) is the current first-line standard of care (1L-SoC). ABCs frequently harbour actionable molecular alterations that suggest a high potential for benefit from molecular targeted therapies (MTTs). However, the assessment of potential first-line MTT treatments is hindered by the scarcity of ABCs harbouring a specific alteration and the time required to carry out tumour molecular profiling.

MATERIALS AND METHODS

We detail here the design of SAFIR-ABC10, an international, randomised, phase III umbrella trial comparing the efficacy of sequential matched targeted therapy after four cycles (12 weeks) of 1L-SoC versus continued 1L-SoC in patients with ABC and an actionable molecular alteration [European Society for Medical Oncology (ESMO) Scale for Clinical Actionability of molecular Targets (ESCAT) tier I or II]. The primary study endpoint is progression-free survival. Besides initial tumour and circulating DNA next-generation sequencing analysis, sequential blood and tumour sampling will be carried out to identify biomarkers of prognosis, response and acquired resistance.

PERSPECTIVES

SAFIR-ABC10 is, to our knowledge, the first randomised, umbrella trial assessing the concept of precision medicine in ABC, the ideal setting for addressing this question with a high rate of targetable alterations.

Health-related quality of life in patients with unresectable hepatocellular carcinoma treated with SIRT and nivolumab: a sub-analysis of the NASIR-HCC trial

BACKGROUND

The health-related quality of life (HRQoL) impact of therapies for hepatocellular carcinoma (HCC) influences decision-making and treatment outcomes. The present study reports HRQoL results from NASIR-HCC, a single-arm study of selective internal radiation therapy (SIRT) with Y90 resin microspheres followed by nivolumab for unresectable HCC.

METHODOLOGY

Participants completed the EQ-5D-3 L, EQ-VAS, and FACT-Hep at baseline and on the first day of each nivolumab cycle. Linear mixed-effect models were used to calculate changes in outcomes in participants with the baseline and ≥ 1 follow-up measurement. Changes were assessed for clinical meaningfulness versus published minimally important differences.

RESULTS

Thirty-two patients from NASIR-HCC were included. Completion rates exceeded 70% at 62% of time points. Across EQ-5D-3 L domains, minimal changes were reported. Most patients had no problems at almost all time points. Mean index values were 0.864 at baseline and 0.763 in cycle 8, but this difference was not clinically meaningful. The small EQ-VAS increase, from 74.8 at baseline to 75.9 in cycle 8, was also not clinically meaningful. The various FACT scales remained stable, although transient but not clinically meaningful declines occurred for some scales. The median time to deterioration was 5.5 months for the FACT-Hep score.

CONCLUSIONS

Combining SIRT with nivolumab did not compromise HRQoL in patients with unresectable HCC. Study results were limited by the small number of patients but, combined with the previously reported clinical outcomes, suggested that the treatment combination deserves further consideration in this difficult-to-treat population.

TRIAL REGISTRATION NUMBER/DATE OF REGISTRATION

NCT03380130. First submitted on 2017-10-20; https://clinicaltrials.gov/study/NCT03380130 .

Plasma proteomic biomarkers predict therapeutic responses in advanced biliary tract cancer patients receiving Camrelizumab plus the GEMOX treatment

Biliary tract cancer (BTC) has greatly influenced patient survival for years. Nowadays, immunotherapy represents a promising breakthrough and proteomics is one of powerful technologies in biomarker research. We collected plasma and tissue samples from 37 patients with advanced BTC and 92 proteins were analyzed by proximity extension assay (PEA). Through linear mixed effect models, compared to partial response (PR) group, 8 proteins, IL7, ANGPT2, IL15, HO-1, CXCL1, CXCL5, IL33, and VEGFA, exhibited significantly higher expression in stable disease and progressive disease (SD_PD) group in response-effect analysis. It was also revealed that a subset of proteins increased over time, including PDCD1, TNFRSF4, DCN, CRTAM, VEGFR-2 and ADA in PR group and PDCD1, IL10, ADA, CD28, and PTN in SD_PD group. In interaction-effect analysis, HO-1, ANGPT2, IL15 were three significant differentially expressed proteins (DEPs). Receiver operating characteristic (ROC) analysis further demonstrated that HO-1, ANGPT2, IL15 showed high accuracy in patients with immune checkpoint blockade (ICB) treatment plus chemotherapy (AUC = 0.74). In addition, based on the obtained plasma and tissue samples, two nomogram models were constructed for predicting the prognosis of BTC by genome combined with proteomics. Collectively meaningful proteomic biomarkers are beneficial to evaluate the efficacy of immunotherapy, and these discovered biomarkers may be included in the scope of treatments' evaluation and improvement in future study.

Efficacy of Second-Line Treatments After Atezolizumab and Bevacizumab in Advanced Hepatocellular Carcinoma and Related Prognostic Factors: A Multicenter Study by the Turkish Oncology Group (TOG)

Background/Aims

The treatment of hepatocellular carcinoma (HCC), which accounts for 90% of all liver cancers, is highly varied. The use of second-line treatments following progression on first-line atezolizumab and bevacizumab (Atez/Bev) for advanced HCC remains controversial. The aim of this study was to analyze the real-world clinical results of second-line treatments in progression after Atez/Bev and to determine the factors affecting prognosis.

Materials and Methods

Fifty-eight patients treated with second-line sorafenib, regorafenib, and cabozantinib for progression after first-line Atez/Bev for advanced/metastatic HCC from 20 centers in Türkiye between October 2020 and June 2024 were retrospectively analyzed. Responses were evaluated by Response criteria, specifically Response Evaluation Criteria in Solid Tumors (RECIST v1.1) criteria. Median overall survival (OS) and progression-free survival (PFS) were computed with the Kaplan-Meier method. The Cox regression model was utilized to analyze multivariate analyses.

Results

About 82.8% of the patients were male and the median age of the whole group was 62 (range, 18-78) years. All patients progressed after first-line Atez/Bev and were given second-line treatment. The most commonly used second-line treatment option was sorafenib (70.7%), followed by regorafenib (12.1%) and cabozantinib (10.3%). Both median PFS (4.1 months) and median OS (7.8 months) were longer in patients treated with sorafenib compared to other treatments. In univariate analyses, Child-Pugh score B, high alpha-fetoprotein (AFP) levels (>200 ng/mL), extrahepatic spread, and Prognostic Nutritional Index (PNI) < 47.6 substantially raised the risk of overall mortality. Multivariate analysis showed that extrahepatic spread (HR (Hazard ratio): 0.41, P = .012), PNI level (HR: 0.24, P = .005), and AFP level (HR:1.97, P = .049) were independent predictors of OS.

Conclusion

Although second-line therapies after Atez/Bev show different degrees of efficacy, survival rates are consistent with the literature. Extrahepatic spread, AFP level, and PNI level are the main prognostic factors. In light of this information, personalized treatment strategies may improve outcomes for this challenging patient group.

Next‐Generation Flexible Embolic Systems: Targeted Transarterial Chemoembolization Strategies for Hepatocellular Carcinoma

Transarterial chemoembolization (TACE) remains the gold standard for treating intermediate‐stage hepatocellular carcinoma (HCC), yet faces great challenges in overcoming tumor heterogeneity, hypoxia‐induced angiogenesis, and metastatic progression. The development of advanced flexible embolization materials marks a revolutionary leap in interventional therapy, offering opportunities to revolutionize embolization precision, drug delivery kinetics, and tumor microenvironment modulation. This comprehensive review systematically examines the paradigm shift toward next‐generation TACE technology, emphasizing the limitations of conventional approaches and innovations in flexible embolic agents. A detailed discussion of next‐generation nano‐flexible embolic systems is presented, emphasizing their unique coagulation dynamics, real‐time imaging capabilities, and therapeutic precision. The review delves into groundbreaking TACE strategies integrating hypoxia modulation, energy conversion therapeutics, and sophisticated tumor microenvironment engineering. Clinical translation aspects are thoroughly explored, including large‐scale trial outcomes, vascular recanalization dynamics, and patient‐specific treatment optimization. Looking forward, key frontiers in the field is identified: intelligent nanocomposite systems, synergistic combination therapies, and precision medicine approaches tailored to individual tumor biology. This work not only objectively evaluates current progress but also charts future research priorities, aiming to transform TACE from a palliative intervention to a precision medicine platform and ultimately reshaping the landscape of HCC treatment and patient care.

Enhancing antitumor immunity: the role of immune checkpoint inhibitors, anti-angiogenic therapy, and macrophage reprogramming

Cancer treatment has long been hindered by the complexity of the tumor microenvironment (TME) and the mechanisms that tumors employ to evade immune detection. Recently, the combination of immune checkpoint inhibitors (ICIs) and anti-angiogenic therapies has emerged as a promising approach to improve cancer treatment outcomes. This review delves into the role of immunostimulatory molecules and ICIs in enhancing anti-tumor immunity, while also discussing the therapeutic potential of anti-angiogenic strategies in cancer. In particular, we highlight the critical role of endoplasmic reticulum (ER) stress in angiogenesis. Moreover, we explore the potential of macrophage reprogramming to bolster anti-tumor immunity, with a focus on restoring macrophage phagocytic function, modulating hypoxic tumor environments, and targeting cytokines and chemokines that shape immune responses. By examining the underlying mechanisms of combining ICIs with anti-angiogenic therapies, we also review recent clinical trials and discuss the potential of biomarkers to guide and predict treatment efficacy.

Hepatocellular Carcinoma and Health-Related Quality of Life: A Systematic Review of Outcomes From Systemic Therapies

Aim: Poor outcomes in advanced hepatocellular carcinoma (HCC) coupled with potential significant treatment side effects underpin a strong rationale to assess health-related quality of life (HRQOL) in those treated with systemic therapies. This study is aimed at quantifying the effect of systemic therapies on HRQOL outcomes in HCC patients when compared to baseline or placebo, other systemic therapies, and transarterial radioembolisation (TARE). Methods: In May 2024, two independent reviewers searched PubMed, EMBASE, and Google Scholar for studies comparing postsystemic therapy HRQOL scores in adult patients with HCC to baseline or placebo, other systemic therapies, or to TARE. Narrative synthesis was used to synthesise results. Risk of bias was assessed using RoB 2 and ROBINS-I. This review was structured according to PRISMA guidelines and was prospectively registered in the PROSPERO register (CRD42024521699). Results: Twenty-nine studies with 10,472 patients using eight HRQOL instruments were included. Compared to baseline, patients on atezolizumab/bevacizumab and sorafenib both experienced significant declines in HRQOL, and lenvatinib nonsignificantly decreased HRQOL. HRQOL remained unchanged in patients on pembrolizumab or nivolumab. Atezolizumab/bevacizumab and lenvatinib both significantly delayed HRQOL deterioration compared to sorafenib. Compared to TARE, atezolizumab/bevacizumab delayed time-to-deterioration in HRQOL, whereas sorafenib had significantly worse HRQOL. Conclusion: Despite worsening HRQOL outcomes compared to baseline, the first-line agents atezolizumab/bevacizumab and lenvatinib had superior HRQOL outcomes in comparison to sorafenib. Sorafenib significantly worsened HRQOL compared to TARE. As the majority of included studies included sorafenib, which has been largely superseded by newer therapies, further trials evaluating HRQOL with these newer therapies are required.

Assessment of heterogeneity according to hospital or medical experience factors in outcomes of chemotherapy for advanced biliary tract cancer: a post-hoc analysis of JCOG1113

BACKGROUND

JCOG1113 is a randomized phase III trial that showed non-inferiority of gemcitabine plus S-1 to gemcitabine plus cisplatin in patients with advanced biliary tract cancer. Assessment of inter-institutional heterogeneity in chemotherapy contributes to confirm generalizability and reliability of the study itself. However, there have been no studies conducted to assess the heterogeneity among participating centers in randomized phase III trials for biliary tract cancer.

METHODS

The objective of this post-hoc analysis was to assess the inter-institutional heterogeneity in the overall survival and progression-free survival of patients with advanced biliary tract cancer treated with first-line chemotherapy in the JCOG1113 trial. The heterogeneity in the overall survival and progression-free survival was assessed according to three factors: hospital volume, experience in medical oncology and experience in biliary intervention. A total of 300 advanced biliary tract cancer patients were analyzed. There were no statistically significant trends observed between hospital volume, experience in medical oncology, or experience in biliary intervention and overall survival (hospital volume: adjusted trend P value = 0.6796; experience in medical oncology: adjusted trend P value = 0.4092; experience in biliary intervention: adjusted trend P value = 0.6112). Similarly, no statistically significant trends were observed between these factors and progression-free survival (hospital volume: adjusted trend P value = 0.3000; experience in medical oncology: adjusted trend P value = 0.1108; experience in biliary intervention: adjusted trend P value = 0.2898).

CONCLUSIONS

This study revealed no inter-institutional heterogeneity in the overall survival and progression-free survival in the JCOG1113 study population of advanced biliary tract cancer patients.

Diagnosis, clinical characteristics, and treatment of combined hepatocellular-cholangiocarcinoma

The concept and definition of combined hepatocellular-cholangiocarcinoma (cHCC-CCA), an extremely rare condition accounting for only 1% of all primary liver cancers, has shifted in recent years. The latest World Health Organization Classification (fifth edition) includes two types of cHCC-CCAs, (i) the classical type described in the previous edition, which contains a mixture of distinctly differentiated components of both hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) and (ii) intermediate cell carcinoma wherein all cells comprising the tumor express both hepatocellular and cholangiocellular features. However, the pathogenesis of cHCC-CCA, including its origins, remains controversial even among experts. Treatment strategies for cHCC-CCA in clinical practice have been determined based on imaging findings, tumor markers, and pathologically predominant tumor components for either HCC or ICC, suggesting that cHCC-CCA has yet to be been established as an independent disease entity. As with HCC and ICC, the treatment strategy for HCC-CCA involves initially considering resectability. Although systemic therapy has been considered for patients unsuitable for local treatment, no prospective clinical trials have evaluated the efficacy and safety of systemic therapy for cHCC-CCA, which could explain the lack of a standard of care. In recent years, however, studies have demonstrated the efficacy of immune checkpoint inhibitors for HCC and ICC, with therapeutic results having been reported for cHCC-CCA. Hence, further accumulation of cases is expected to facilitate the establishment of a consensus on treatment strategies in the near future.

Biomarkers and Management of Cholangiocarcinoma: Unveiling New Horizons for Precision Therapy

Cholangiocarcinoma (CCA) is an aggressive malignancy with limited methods for early detection, necessitating the development of reliable biomarkers for diagnosis and management. However, conventional tumor markers, such as CA19-9 and CEA, exhibit insufficient diagnostic accuracy. Recent advancements in molecular genetics have identified several actionable mutations in CCA, enabling molecularly targeted therapies that improve survival in patients harboring these genetic alterations. Cancer panels, which facilitate multiplex genetic profiling, are critical for identifying these mutations. Studies indicate that several actionable mutations are detected in CCA cases, with patients receiving mutation-guided therapies achieving markedly better outcomes. Liquid biopsies, including cell-free DNA and circulating tumor DNA, offer real-time, non-invasive approaches to monitoring tumor dynamics, heterogeneity, and treatment responses. Furthermore, numerous studies have identified non-coding RNAs in serum and bile as promising biomarkers for the diagnosis and management of CCA. On the other hand, immunotherapy, particularly immune checkpoint inhibitors, has shown efficacy in subsets of CCA patients. However, the success of these therapies is often affected by the status of the tumor immune microenvironment (TME), underscoring the need for comprehensive TME analysis to predict responses to immune checkpoint inhibitors. Despite these advances, no single biomarker currently demonstrates sufficient sensitivity or specificity for clinical application. The integration of multi-omics approaches with cutting-edge technologies holds promise for enhancing diagnostic accuracy, optimizing treatment stratification, and advancing precision medicine in CCA. These developments highlight the transformative potential of biomarkers to improve early detection, prognostic assessment, and personalized therapeutic interventions for CCA.

Systemic therapy with pemigatinib and sintilimab followed by resection for recurrent FGFR-2-positive intrahepatic cholangiocarcinoma: a case report

Background

Fibroblast growth factor receptor-2 (FGFR-2) mutations are frequently observed in intrahepatic cholangiocarcinoma (ICC). While FGFR2-targeted therapies are primarily studied in advanced ICC, this report presents a rare case of locally recurrent ICC treated with systemic therapy, leading to significant tumor regression and successful R0 resection.

Case presentation

A 51-year-old female underwent right posterior hepatectomy and cholecystectomy in 2018 for ICC. In August 2022, postoperative MRI revealed tumor recurrence near the hepatic vein, accompanied by intrahepatic bile duct dilation and a tumor thrombus. Given the tumor's proximity to critical structures and confirmed FGFR-2 fusion, systemic therapy with pemigatinib and sintilimab was initiated. After four cycles, the tumor showed partial remission, with a reduction in the bile duct tumor thrombus. In May 2023, the patient underwent successful right hemi-hepatectomy. Postoperatively, she continued combination therapy without recurrence or metastasis for 19 months.

Conclusion

This case highlights the efficacy of pemigatinib-based systemic therapy in achieving tumor regression and enabling curative resection in locally recurrent FGFR-2-positive ICC. The successful outcome underscores the potential of targeted therapies in managing recurrent ICC, warranting further investigation.

Roles of the gut microbiota in hepatocellular carcinoma: from the gut dysbiosis to the intratumoral microbiota

Hepatocellular carcinoma (HCC) is closely linked to alterations in the gut microbiota. This dysbiosis is characterized by significant changes in the microbial population, which correlate with the progression of HCC. Gut dysbiosis ultimately promotes HCC development in several ways: it damages the integrity of the gut-vascular barrier (GVB), alters the tumor microenvironment (TME), and even affects the intratumoral microbiota. Subsequently, intratumoral microbiota present a characteristic profile and play an essential role in HCC progression mainly by causing DNA damage, mediating tumor-related signaling pathways, altering the TME, promoting HCC metastasis, or through other mechanisms. Both gut microbiota and intratumoral microbiota have dual effects on HCC progression; a comprehensive understanding of their complex biological roles will provide a theoretical foundation for potential clinical applications in HCC treatment.

Predicting treatment response and prognosis of immune checkpoint inhibitors-based combination therapy in advanced hepatocellular carcinoma using a longitudinal CT-based radiomics model: a multicenter study

BACKGROUND

Identifying effective predictive strategies to assess the response of immune checkpoint inhibitors (ICIs)-based combination therapy in advanced hepatocellular carcinoma (HCC) is crucial. This study presents a new longitudinal CT-based radiomics model to predict treatment response and prognosis in advanced HCC patients undergoing ICIs-based combination therapy.

METHODS

Longitudinal CT images were collected before and during the treatment for HCC patients across three institutions from January 2019 to April 2022. A total of 1316 radiomic features were extracted from arterial and portal venous phase abdominal CT images for each patient. A model called Longitudinal Whole-liver CT-based Radiomics (LWCTR) was developed to categorize patients into responders or non-responders using radiomic features and clinical information through support vector machine (SVM) classifiers. The area under the curve (AUC) was used as the performance metric and subsequently applied for risk stratification and prognostic assessment. The Shapley Additive explanations (SHAP) method was used to calculate the Shapley value, which explains the contribution of each feature in the SVM model to the prediction.

RESULTS

This study included 395 eligible participants, with a median age of 57 years (IQR 51-66), comprising 344 males and 51 females. The LWCTR model performed well in predicting treatment response, achieving an AUC of 0.883 (95% confidence interval [CI] 0.881-0.888) in the training cohort, 0.876 (0.858-0.895) in the internal validation cohort, and 0.875 (0.860-0.887) in the external test cohort. The Rad-Nomo model, integrating the LWCTR model's prediction score (Rad-score) with the modified Response Evaluation Criteria in Solid Tumors (mRECIST), demonstrated strong prognostic performance. It achieved time-dependent AUC values of 0.902, 0.823, and 0.850 at 1, 2, and 3 years in the internal validation cohort and 0.893, 0.848, and 0.762 at the same intervals in the external test cohort.

CONCLUSION

The proposed LWCTR model performs well in predicting treatment response and prognosis in patients with HCC receiving ICIs-based combination therapy, potentially contributing to personalized and timely treatment decisions.

Cholangiocarcinoma PDHA1 succinylation suppresses macrophage antigen presentation via alpha-ketoglutaric acid accumulation

Gemcitabine combined with cisplatin is the first-line chemotherapy for advanced cholangiocarcinoma, but drug resistance remains a challenge, leading to unsatisfactory therapeutic effect. Here, we elucidate the possibility of chemotherapy regimens sensitized by inhibiting succinylation in patients with cholangiocarcinoma from the perspective of post-translational modification. Our omics analysis reveals that succinylation of PDHA1 lysine 83, a key enzyme in the tricarboxylic acid cycle, alters PDH enzyme activity, modulates metabolic flux, and leads to alpha-ketoglutaric acid accumulation in the tumor microenvironment. This process activates the OXGR1 receptor on macrophages, triggering MAPK signaling and inhibiting MHC-II antigen presentation, which promotes immune escape and tumor progression. Moreover, we show that inhibiting PDHA1 succinylation with CPI-613 enhances the efficacy of gemcitabine and cisplatin. Targeting PDHA1 succinylation may be a promising strategy to improve treatment outcomes in cholangiocarcinoma and warrants further clinical exploration.

Systemic therapy for pretreated advanced biliary tract cancer: past developments and recent advances

Biliary tract cancer (BTC) remains among the most challenging malignancies with a poor prognosis and limited treatment options, particularly in pretreated patients. As most patients experience disease progression after first-line treatment, effective second-line and subsequent treatments are required. Although the addition of modified FOLFOX (fluorouracil, leucovorin, and oxaliplatin) to active symptom control improved the overall survival of patients with progressing advanced BTC despite gemcitabine plus cisplatin treatment, its efficacy was modest. Moreover, most clinical trials demonstrated modest efficacy of molecular-targeted agents for molecularly unselected pretreated advanced BTC. Patients with advanced BTC carry a relatively high druggable genetic alteration rate and have shown promising responses to molecular-matched therapies targeting gene alterations such as FGFR2 fusions/rearrangements, IDH1 mutation, and HER2 overexpression/amplification. Additionally, tumor-agnostic approaches, including BRAF V600E, NTRK fusion, and RET fusion, have expanded the treatment options for some patients. Immune checkpoint inhibitors have shown limited efficacy as mono- or combination therapy in patients with pretreated advanced BTC. Therefore, developmental efforts have shifted to immune checkpoint inhibitor and other combinations such as vascular endothelial growth factor receptor inhibitors or radiation. In addition to refining combination strategies to enhance the therapeutic potential of immune checkpoint inhibitor, future research should focus on elucidating the tumor microenvironment. This review delineates the evolution of systemic therapies in patients with pretreated advanced BTC. By examining past developments and recent advances through prospective trials, it highlights novel approaches that may improve outcomes in this challenging disease.

The role of TACE in the era of immune-targeted therapy for hepatocellular carcinoma: a meta-analysis based on PSM

Background

Hepatocellular carcinoma (HCC) is a major global health challenge, with over 50% of patients ineligible for curative treatments at diagnosis. The combination of molecular targeted therapies and immunotherapy has shown promise in improving outcomes for advanced HCC.

Objective

This meta-analysis aims to assess the efficacy of combining transarterial chemoembolisation (TACE) with immune-targeted therapies in patients with unresectable HCC.

Methods

A systematic review and meta-analysis conforming to PRISMA guidelines were conducted by searching PubMed, Embase, Web of Science, and the Cochrane Library for studies published up to January 5, 2025. Due to the limited clinical evidence, our study exclusively included retrospective studies based on propensity score matching (PSM) analysis that compared the efficacy of TACE in combination with immune-targeted therapy to immune-targeted therapy alone. Key outcomes assessed included objective response rate (ORR), disease control rate (DCR), one-year overall survival (1-OS), one-year progression-free survival (1-PFS), median overall survival (mOS), and median progression-free survival (mPFS).

Results

A total of 9 PSM studies involving 2119 patients were included. The meta-analysis revealed that TACE significantly improved ORR, DCR, 1-OS, and 1-PFS, in addition to extending mOS and mPFS.

Conclusion

The findings suggest that the inclusion of TACE in treatment regimens for unresectable HCC notably enhances tumour control and patient survival. This study provides moderate to high-quality evidence supporting the integration of TACE in advanced HCC management, particularly for those patients not meeting standard TACE criteria.

Systematic review registration

https://www.crd.york.ac.uk/PROSPERO/, identifier CRD 42025631817.

Immune microenvironment and immunotherapy in hepatocellular carcinoma: mechanisms and advances

Hepatocellular carcinoma (HCC) remains a leading cause of cancer-related mortality globally. The tumor microenvironment (TME) plays a pivotal role in HCC progression, characterized by dynamic interactions between stromal components, immune cells, and tumor cells. Key immune players, including tumor-associated macrophages (TAMs), tumor-infiltrating lymphocytes (TILs), cytotoxic T lymphocytes (CTLs), regulatory T cells (Tregs), MDSCs, dendritic cells (DCs), and natural killer (NK) cells, contribute to immune evasion and tumor progression. Recent advances in immunotherapy, such as immune checkpoint inhibitors (ICIs), cancer vaccines, adoptive cell therapy (ACT), and combination therapies, have shown promise in enhancing anti-tumor responses. Dual ICI combinations, ICIs with molecular targeted drugs, and integration with local treatments or radiotherapy have demonstrated improved outcomes in HCC patients. This review highlights the evolving understanding of the immune microenvironment and the therapeutic potential of immunotherapeutic strategies in HCC management.

Multiple-omics analysis reveals a dedifferentiation-immune loop in intrahepatic cholangiocarcinoma

Intrahepatic cholangiocarcinoma (ICC) is known for its diverse cell types and resistance to standard treatments, highlighting the importance of understanding its tumor microenvironment (TME) for improved prognostic accuracy and therapeutic innovation. Our study used a multi-omics approach to analyze the ICC TME in both human and mouse samples, linking survival outcomes to the complex cellular interactions within the TME. We discovered a dedifferentiation phenomenon in ICC cells driven by the Yes-associated protein (YAP) pathway, influenced by tumor-associated macrophages (TAMs). Conversely, ICC cells promoted an immunosuppressive environment in TAMs. Targeting TAMs in a transgenic mouse model disrupted this loop, enhancing T cell responses and suggesting a novel immunotherapy avenue for ICC. Our findings reveal a reciprocal dedifferentiation-immunosuppression loop between ICC cells and TAMs, advocating TAM targeting as a promising therapy and highlighting the potential of macrophage modulation in ICC treatment.