Weekends-Off Lenvatinib for Unresectable Hepatocellular Carcinoma Improves Therapeutic Response and Tolerability toward Adverse Events

Risk factors for lenvatinib-induced palmar-plantar erythrodysesthesia syndrome in patients with hepatocellular carcinoma: A retrospective study

AIM

Lenvatinib mesylate (LEN) is an oral tyrosine kinase inhibitor used to treat various cancers, including hepatocellular carcinoma (HCC). HCC treatment with LEN is associated with a very high incidence of adverse events. This study was aimed at investigating the incidence of LEN-induced palmar-planter erythrodysesthesia syndrome (PPES) and its relationship with patient demographics by analyzing clinical laboratory data of LEN-treated patients with HCC.

METHODS

This was a single-centre, retrospective study of patients with HCC who received LEN between April 19, 2018, and September 30, 2020. The observation period was from 1 week before the start of LEN administration to 1 month after the end of administration.

RESULTS

Overall, 75 patients with HCC were enrolled. LEN-induced PPES was found in 48.0% (36/75 patients). In these patients, alkaline phosphatase (ALP), γ-Glutamyl transpeptidase (γ-GTP) and monocytes (MONO) were significantly high (ALP: p = 1.32 × 10-3, γ-GTP: p = 4.25 × 10-3 and MONO: p = 0.013). The cut off values of ALP, γ-GTP and MONO for LEN-induced PPES were estimated at 573 U/L, 89 U/L, and 310 counts/μL, respectively. In the multivariate analysis, γ-GTP and MONO were independent risk factors for LEN-induced PPES.

CONCLUSIONS

High γ-GTP and high MONO were risk factors for LEN-induced PPES.

Relevance of plasma lenvatinib concentrations and endogenous urinary cytochrome P450 3A activity biomarkers in clinical practice

Lenvatinib (LEN), a multitarget tyrosine kinase inhibitor used in various cancer treatments, is mainly metabolized by cytochrome P450 3A (CYP3A) enzymes. The importance of therapeutic drug monitoring (TDM) in patients administered LEN has been proposed. Although some biomarkers of endogenous CYP3A activity have been reported, their utility in dosage adjustments has not been well evaluated. This study investigated the correlation between plasma LEN concentrations and endogenous urinary CYP3A biomarkers in clinical practice. Concentrations of plasma LEN (N = 225) and CYP3A biomarkers (cortisol, 6β-hydroxycortisol, deoxycholic acid, and 1β-hydroxydeoxycholic acid) in urine (N = 214) from 20 patients (hepatocellular carcinoma, N = 6; thyroid cancer, N = 3; endometrial cancer, N = 8; and renal cell carcinoma, N = 3) collected for consultation for up to 1 year were evaluated using liquid chromatography-tandem mass spectrometry. Moreover, plasma trough LEN concentrations were predicted using a three-compartment model with linear elimination for outpatients administered LEN before sample collection. Moderate correlations were observed between the quantified actual concentrations and the predicted trough concentrations of LEN, whereas there was no correlation with endogenous urinary CYP3A biomarkers. The utility of endogenous urinary CYP3A biomarkers could not be determined. However, TDM for outpatients administered orally available medicines may be predicted using a nonlinear mixed effect model (NONMEM). This study investigated the utility of endogenous urinary CYP3A biomarkers for personalized medicine and NONMEM for predicting plasma trough drug concentrations. These findings will provide important information for further clinical investigation and detailed TDM.

Patients with hepatocellular carcinoma extrahepatic metastases can benefit from hepatic arterial infusion chemotherapy combined with lenvatinib plus programmed death-1 inhibitors

BACKGROUND

Lenvatinib plus programmed death-1 (PD-1) inhibitors (LEN-P) have been recommended in China for patients with advanced hepatocellular carcinoma (HCC). However, they provide limited survival benefits to patients with extrahepatic metastases. We aimed to investigate whether combining hepatic arterial infusion chemotherapy (HAIC) with LEN-P could improve its efficacy.

MATERIALS AND METHODS

This multicenter cohort study included patients with HCC extrahepatic metastases who received HAIC combined with LEN-P (HAIC-LEN-P group, n =127) or LEN-P alone ( n =103) as the primary systemic treatment between January 2019 and December 2022. Baseline data were balanced using a one-to-one propensity score matching (PSM) and inverse probability of treatment weighting (IPTW).

RESULTS

After PSM, the HAIC-LEN-P group significantly extended the median overall survival (mOS) and median progression-free survival (mPFS), compared with the LEN-P group (mOS: 27.0 months vs. 9.0 months, P <0.001; mPFS: 8.0 months vs. 3.0 months, P =0.001). After IPTW, the mOS [hazard ratio (HR)=0.384, P <0.001] and mPFS (HR=0.507, P <0.001) were significantly higher in the HAIC-LEN-P group than in the LEN-P group. The HAIC-LEN-P group's objective response rate was twice as high as that of the LEN-P group (PSM cohort: 67.3% vs. 29.1%, P <0.001; IPTW cohort: 66.1% vs. 27.8%, P <0.001). Moreover, the HAIC-LEN-P group exhibited no noticeable increase in the percentages of grade 3 and 4 adverse events compared with the LEN-P group ( P >0.05).

CONCLUSION

HAIC can improve the efficacy of LEN-P in patients with HCC extrahepatic metastases and may be an alternative treatment for advanced HCC management.

Safety evaluation of lenvatinib treatment after atezolizumab plus bevacizumab therapy for patients with unresectable liver cancer: A comparison of lenvatinib as 1st‑ or 2nd‑line treatment

Atezolizumab plus bevacizumab (Atez/BV) as first-line therapy and lenvatinib (LEN) as second-line therapy are the recommended treatments for patients with unresectable hepatocellular carcinoma. Adverse immune events caused by immune checkpoint inhibitors (such as Atez) generally only occur several months after administration; therefore, the potential influence of the first-line treatment on second-line treatment is not clear. The present study investigated the safety of second-line LEN treatment (2nd LEN) by comparing the adverse events (AEs) of 2nd LEN after first-line Atez/BV treatment for unresectable liver cancer, with those of first-line LEN treatment (1st LEN). Patients who received Atez/BV as first-line therapy and 2nd LEN, or those who received 1st LEN at Ogaki Municipal Hospital (Ogaki, Japan) between April 2018 and September 2023 were retrospectively evaluated for treatment duration and AEs. The median treatment duration for patients in the 1st LEN (n=39) and 2nd LEN (n=13) groups was 151.0 days [95% confidence interval (CI) 77-303 days] and 128.5 days (95% CI 68-270 days), respectively (P=0.385). A greater proportion of patients showed elevated aspartate aminotransferase/alanine aminotransferase levels in the 2nd LEN group (76.9%) compared with those in the 1st LEN group (46.2%) (P=0.016). Hypothyroidism was more common in those receiving 2nd LEN (46.2%) than 1st LEN (12.8%) (P=0.016). In addition, grade 1 (three patients) and grade 2 (three patients) hypothyroidism was observed in patients receiving 2nd LEN. For these six patients, during first-line Atez/BV treatment, four patients had grade 0 hypothyroidism and two patients had grade 1 hypothyroidism (P=0.025). In conclusion, patients receiving 2nd LEN after treatment with Atez/BV are at an increased risk of hypothyroidism.

Real-World Effectiveness of First Line Lenvatinib Therapy in Advanced Hepatocellular Carcinoma: Current Insights

Lenvatinib received its initial approval in 2018 for the treatment of advanced hepatocellular carcinoma. It has since emerged as the preferred first line agent, supported by non-inferiority data from the REFLECT trial. Notably, lenvatinib exhibits a more favorable toxicity profile and a higher response rate compared to sorafenib. Despite the approval of immunotherapy in 2020, specifically the combination of atezolizumab and bevacizumab following the IMbrave150 trial, tyrosine kinase inhibitors remain an indispensable class of agents in the landscape of hepatocellular carcinoma treatment. This comprehensive review delves into various facets of lenvatinib utilization in hepatocellular carcinoma, shedding light on real-world data, addressing challenges, and providing insights into strategies to overcome these obstacles.

Fibroblast growth factor inhibition by molecular-targeted agents mitigates immunosuppressive tissue microenvironment in hepatocellular carcinoma

BACKGROUND & AIMS

Combination immunotherapy refers to the use of immune checkpoint inhibitors (ICI) and molecular-targeted agents (MTA), which have recently been approved for the treatment of advanced hepatocellular carcinoma (HCC). Owing to its relatively low antitumor effect (up to 30%), sequential therapy following ICIs treatment is required in patients with HCC. This study aimed to determine the impact of MTAs on the tumor immune microenvironment (TIME).

METHODS

We established immune syngeneic orthotopic HCC mouse models using Hep-55.1C and Hep-53.4, and treated them with MTAs (lenvatinib, sorafenib, regorafenib, cabozantinib, and DC101 as anti-vascular endothelial growth factor receptor-2 antibodies, and AZD4547 as a fibroblast growth factor receptor (FGFR)-1/2/3/4 inhibitor) for 2 weeks. Subsequently, alterations in the TIME caused by MTAs were evaluated using immunohistochemistry (antibodies for CD3, CD8, Foxp3, Granzyme B, Arginase-1, NK1.1, F4/80, CD11c, PD-1, and PD-L1). We conducted RNA-seq analysis using lenvatinib- and AZD4547-treated tumors. To confirm the clinical relevance of these findings, we analyzed the transcriptome data of human HCC cells (MHCC-97H) treated with various concentrations of lenvatinib for 24 h using RNA-seq data from the Gene Expression Omnibus database.

RESULTS

The number of Foxp3- and F4/80-positive cells in the TIME was decreased in many MTAs. Cabozantinib increased the numbers in NK1.1-, Granzyme B, and CD11c-positive cells. Lenvatinib and AZD4547 increased the number of CD8, Granzyme B, and PD-L1-positive cells. Gene ontology enrichment analysis revealed that lipid metabolism-related genes were downregulated by lenvatinib and AZD4547. In total, 161 genes downregulated by FGFR inhibition in rodent models overlapped with those downregulated by lenvatinib in human HCC cells.

CONCLUSIONS

In this study, we showed that cabozantinib activated the innate immune system, and lenvatinib and AZD4547, which commonly inhibit FGFR signaling, altered TIME to a hot immune state by downregulating lipid metabolism-related genes. These findings support the therapeutic use of combination immunotherapies.

Evaluation of Atezolizumab Plus Bevacizumab Versus Modified Lenvatinib Therapy in Child-Pugh A Unresectable Hepatocellular Carcinoma

Background/Aim

Atezolizumab/bevacizumab (Atez/BV) and lenvatinib (LEN) are the recommended first-line treatments for patients with unresectable hepatocellular carcinoma (HCC). Previous reports have suggested that the tolerability and therapeutic efficacy of LEN could be enhanced by modifying its administration method. Therefore, this study compared the efficacy and safety of Atez/BV, the standard LEN therapy (standard LEN), and modified LEN therapy (modified LEN).

Patients and Methods

The overall survival (OS) and the rate of discontinuation due to adverse events (AEs) were compared between groups treated with Atez/BV (n=36), standard LEN (n=30), and modified LEN (n=11).

Results

Discontinuation due to AEs was required in 22.2%, 23.3%, and 9.1% of patients in the Atez/BV, standard LEN, and modified LEN groups (p=0.485). The median OS for the Atez/BV, standard LEN, and modified LEN groups was 523 [95% confidence interval (CI)=163-818], 382 (95%CI=330-547), and 604 (95% CI=257-656) days, respectively (log-rank test, p=0.949).

Conclusion

Atez/BV and the standard and modified LEN regimens showed comparable efficacy and safety.

Utility and optimal management of planned drug holidays during lenvatinib treatment in patients with unresectable differentiated thyroid cancer: a real-world multi-center study

PURPOSE

Lenvatinib achieves favorable therapeutic outcomes for patients with radioactive iodine therapy refractory differentiated thyroid cancer (DTC); however, its use is associated with a high incidence of adverse events. To avoid severe adverse events, planned drug holidays (PDH) have been proposed. This study aimed to evaluate treatment effects, identify prognostic factors, and investigate the usefulness of PDH in patients with unresectable DTC who received lenvatinib across the multi-institutions.

METHODS

Fifty-one patients with unresectable DTC treated with lenvatinib were evaluated retrospectively. Overall survival (OS) and progression-free survival (PFS) were calculated, and prognostic factors were assessed. OS, PFS, and time to treatment failure (TTF) were compared between patients with and without PDH. Lenvatinib administration schedule was evaluated in PDH.

RESULTS

The 3-year OS and PFS rate were 53.5% and 42.1%, respectively. Multivariate analysis revealed that presence of maximum size of lung metastasis ≥10 mm was independent prognostic factor for poorer OS and PFS, and histology other than papillary thyroid carcinoma was the independent prognostic factor for poorer PFS. Twenty-five patients (49%) treated with PDH. There were significant differences in OS, PFS, and TTF between patients with and without PDH. Various schedules were used in PDH. Eight (32%) patients required switch to the different administration schedule.

CONCLUSION

Our results suggest that PDHs may extend OS, PFS, and TTF. In patients with PDH, various schedules used for lenvatinib administration highlight the difficulty in determining a uniform administration schedule. Therefore, it is crucial to consider the optimal lenvatinib administration schedule on a case-by-case basis.

A tumor endothelial cell-specific microRNA replacement therapy for hepatocellular carcinoma

Current approved anti-angiogenic drugs (AAD) for hepatocellular carcinoma (HCC) inhibit tumor angiogenesis, but affect the hepatic vasculature resulting in adverse effects. Tumor endothelial cells (TECs) differ from normal endothelial cells. In this study, we aimed to detect TEC-specific miRNAs and develop an anti-angiogenic treatment specific for TECs. We established HCC orthotopic mouse models. TEC-specific miRNAs were detected using a microRNA array. Finally, we evaluated the therapeutic effects of the TEC-specific miRNA agonist cocktail. In total, 260 TEC-specific genes were detected. Among the top ten downregulated TEC-specific miRNAs, miR-139-3p and 214-3p were important for the TEC phenotype. The TEC-specific microRNA agonist cocktail showed significant anti-tumor effects by inhibiting tumor angiogenesis without affecting hepatic vasculatures in HCC orthotopic mouse models. Moreover, it significantly downregulated tip-cell sprouting-related genes. We identified two downregulated TEC-specific miRNAs; microRNA replacement therapy, which targets the downregulated TEC-specific miRNAs, is an effective and promising treatment for HCC.

Planned drug holidays during treatment with lenvatinib for radioiodine-refractory differentiated thyroid cancer: a retrospective study

Background

In the phase 3 SELECT study, lenvatinib significantly improved prognostic outcomes vs. placebo in patients with radioiodine-refractory differentiated thyroid cancer (RR-DTC). However, toxicity of lenvatinib is sometimes considerable and requires frequent dose interruptions and modifications. Recently, planned drug holidays have been proposed as a means of avoiding severe adverse events (AEs).

Methods

We retrospectively reviewed medical records to compare the efficacy and safety of lenvatinib in RR-DTC patients who underwent planned drug holidays (planned holiday group) vs. those who received conventional daily oral administration (daily group).

Results

The subjects were 25 patients in the planned holiday group and 21 in the daily group. Median age was 73 years (range 43-84) and 62 years (range 42-75), and histologic subtype of papillary/follicular was 21/4 cases and 15/6 cases, respectively. Time to treatment failure (TTF) and overall survival (OS) were significantly longer in the planned holiday group than the daily group (not reached [NR] vs. 14.9 months, hazard ratio [HR] 0.25, 95% confidence interval [Cl] 0.11-0.58, p<0.001; NR vs. 26.6 months, HR 0.20, 95% CI 0.073-0.58, p=0.001, respectively). Median progression-free survival (PFS) was NR in the planned holiday group vs. 15.1 months in the daily group (HR 0.31, 95% CI 0.14-0.68, p=0.002). Duration of the period with lenvatinib dose ≥10 mg was significantly longer in the planned holiday group (NR vs. 6.5 months, HR 0.22, 95% CI 0.10-0.49, p<0.001), and the frequency of drug interruption due to intolerable AEs was lower (68.0% vs. 95.2%, p=0.027).

Conclusion

Planned drug holidays for lenvatinib demonstrated significantly longer PFS, TTF, and OS than daily oral administration, and less intolerable toxicity leading to further unplanned treatment interruption. These benefits were apparently associated with a more extended period of lenvatinib administration at ≥10 mg. These findings might contribute to a favorable patient prognosis and safer toxicity profile.

Efficacy of Lenvatinib Combined with Transcatheter Intra-Arterial Therapies for Patients with Advanced-Stage of Hepatocellular Carcinoma: A Propensity Score Matching

This study aimed to evaluate the effect of lenvatinib (LEN) combined with transcatheter intra-arterial therapy (TIT) for advanced-stage hepatocellular carcinoma (HCC) after propensity score matching (PSM). This retrospective study enrolled 115 patients with advanced-stage HCC who received LEN treatment. The patients were categorized into the LEN combined with TIT group (n = 30) or the LEN monotherapy group (n = 85). After PSM, 38 patients (LEN + TIT group, n = 19; LEN monotherapy group, n = 19) were analyzed. The median overall survival (OS) in the LEN + TIT group was significantly higher than that in the LEN monotherapy group (median survival time (MST): 28.1 months vs. 11.6 months, p = 0.014). The OS in the LEN combined with transcatheter arterial chemoembolization and LEN combined with hepatic arterial infusion chemotherapy groups was significantly higher than that in the LEN monotherapy group (MST 20.0 vs. 11.6 months, 30.2 vs. 11.6 months, p = 0.048, and p = 0.029, respectively). Independent factors associated with OS were alpha-fetoprotein and LEN combined with TIT. The indications for LEN combined with TIT were age <75 years and modified albumin bilirubin (m-ALBI) grade 1. We concluded that LEN combined with TIT may improve prognosis compared with LEN monotherapy in patients with advanced-stage HCC.

Evaluation of the therapeutic effects and tolerability of modified lenvatinib administration methods for unresectable hepatocellular carcinoma: A preliminary study

Lenvatinib (LEN), a multitarget tyrosine kinase inhibitor, is a standard therapeutic agent for hepatocellular carcinoma, but the high incidence of adverse events (AEs) related to LEN treatment often necessitates treatment discontinuation. The present study aimed to clarify the therapeutic efficacy and tolerability of modified LEN dosing methods, such as alternate-day dosing, necessitated by AEs of LEN. A total of 66 patients who received LEN at Ogaki Municipal Hospital (Ogaki, Japan) between April 2018 and January 2022 were retrospectively evaluated. These patients were divided into those who completed treatment with the standard administration method (standard LEN, n=48) and those who changed from the standard administration method to a modified administration method in the middle of treatment [modified LEN (weekends off/alternate days), n=18]. The treatment duration and reasons for discontinuation of LEN treatment were analysed. The discontinuation rate due to AEs in the modified LEN group (1 patient) was less compared with that in the standard LEN group (16 patients) (P=0.022). The median treatment duration for patients in the standard LEN (n=48), modified LEN (weekends off, n=6) and modified LEN (alternate days, n=12) groups was 71 [95% confidence interval (CI) 55-134], 483 (95% CI: 193-644) and 222 (95% CI: 98-303) days, respectively (P=0.044). Modification of the administration method ensured fewer AE-related treatment discontinuations. However, weekends off dosing showed a longer treatment duration compared with standard dosing, whereas alternate day dosing showed no difference from standard dosing.

Sustained antitumor response to lenvatinib with weekend-off and alternate-day administration in chemotherapy-refractory thymic carcinoma: a case report

Lenvatinib is a multitargeted kinase inhibitor and maintaining its dose intensity has been shown to be beneficial in patients with thyroid and hepatocellular carcinomas. However, most patients require lenvatinib interruption and dose reduction due to the high incidence of adverse events (AEs). Lenvatinib was recently approved in Japan for patients with unresectable thymic carcinoma; however, real-world evidence of its clinical benefit is limited. Here, we report the case of chemotherapy-refractory thymic carcinoma in a patient who was administered a starting dose of lenvatinib using a 5-day on/2-day off (weekend-off) protocol, followed by alternate-day administration after fatigue onset derived from overt or subclinical hypothyroidism. Consequently, the patient exhibited a durable response to lenvatinib, with a 17-month progression-free survival without any severe or intolerable AEs. The present case suggests that maintaining lenvatinib dose intensity using such alternative administration regimens contributes to favorable clinical outcomes in thymic carcinoma.

Telephone follow-up contributes to improving adherence and treatment duration in patients with hepatocellular carcinoma treated with lenvatinib

BACKGROUND AND AIM

This study aimed to investigate whether telephone follow-up by clinical pharmacists for unresectable hepatocellular carcinoma (HCC) patients treated with lenvatinib (LEN) contributes to improved adherence and treatment duration for LEN.

METHODS

This retrospective study enrolled 132 patients with HCC who were treated with LEN. The patients were classified into non-telephone follow-up (n = 32) or telephone follow-up groups (n = 100) [the latter group was further classified into family-pharmacist (FP) telephone follow-up (n = 18), or hospital family-pharmacist (HFP) telephone follow-up (n = 82) groups].

RESULTS

The progression-free survival (PFS) in the telephone follow-up group was significantly higher than that in the non-telephone follow-up group (PFS 6.1 months vs 3.7 months, P = 0.001, respectively). Although treatment duration was significantly longer in the telephone follow-up group than in the non-telephone follow-up group [median treatment duration: 10.4 months vs 4.1 months, P = 0.001, respectively.], no significant differences were noted between the HFP telephone follow-up group and FP telephone follow-up groups (10.3 months vs 13.3 months, P = 0.543). Self-interruption and adverse-event discontinuation in the HFP-telephone follow-up group were significantly lower than those in the FP-telephone and non-telephone groups (0% vs 11.1% vs 18.8%; P < 0.001, 25.6% vs 33.3% vs 53.1%; P = 0.022, respectively).

CONCLUSIONS

Telephone follow-up contributes to prolonged treatment duration for LEN in patients with HCC treated. Moreover, telephone follow-up with an HFP may further improve treatment adherence.

A case of complete response with rechallenge-lenvatinib plus transcatheter arterial chemoembolization for unresectable hepatocellular carcinoma refractory to multiple molecular-targeted agent treatments

The efficacy of lenvatinib (LEN) plus transcatheter arterial chemoembolization (LEN-TACE) has been reported, but its effect on unresectable hepatocellular carcinoma (HCC) refractory to LEN therapy has not been demonstrated. We report a case of HCC refractory to multiple molecular-targeted agents (MTA) treatments, including LEN, that was successfully treated with LEN-TACE. A 59-year-old man was referred to our department with multiple HCCs and a background of hepatitis B virus infection. TACE was the initial treatment. However, he was determined to be TACE-refractory, and multitargeted therapy was initiated. LEN was started at 12 mg/day but resulted in progressive disease (PD) after 13 months of the administration. The response to second-line sorafenib was PD after 2 months. Third-line therapy with atezolizumab + bevacizumab was stopped after one course because of an immune-related adverse event (i.e., dermatitis). The response to fourth-line regorafenib was PD at 2 months, and the response to fifth-line cabozantinib was PD after 6 months. The efficacy of LEN-TACE was recently reported; therefore, we decided to attempt LEN-TACE therapy as a salvage line. After obtaining the patient's consent to repeat LEN and TACE, treatment was initiated. The tumor markers levels markedly reduced after LEN-TACE therapy. After three additional TACE treatments with continued LEN administration, the tumor marker levels normalized, and complete response was determined based on RECIST guidelines. LEN-TACE therapy may effectively treat unresectable advanced HCC in the LEN-rechallenge setting and may be a treatment option as a last-line therapeutic option.

Tumor-derived insulin-like growth factor-binding protein-1 contributes to resistance of hepatocellular carcinoma to tyrosine kinase inhibitors

BACKGROUND

Antiangiogenic tyrosine kinase inhibitors (TKIs) provide one of the few therapeutic options for effective treatment of hepatocellular carcinoma (HCC). However, patients with HCC often develop resistance toward antiangiogenic TKIs, and the underlying mechanisms are not understood. The aim of this study was to determine the mechanisms underlying antiangiogenic TKI resistance in HCC.

METHODS

We used an unbiased proteomic approach to define proteins that were responsible for the resistance to antiangiogenic TKIs in HCC patients. We evaluated the prognosis, therapeutic response, and serum insulin-like growth factor-binding protein-1 (IGFBP-1) levels of 31 lenvatinib-treated HCC patients. Based on the array of results, a retrospective clinical study and preclinical experiments using mouse and human hepatoma cells were conducted. Additionally, in vivo genetic and pharmacological gain- and loss-of-function experiments were performed.

RESULTS

In the patient cohort, IGFBP-1 was identified as the signaling molecule with the highest expression that was inversely associated with overall survival. Mechanistically, antiangiogenic TKI treatment markedly elevated tumor IGFBP-1 levels via the hypoxia-hypoxia inducible factor signaling. IGFBP-1 stimulated angiogenesis through activation of the integrin α5β1-focal adhesion kinase pathway. Consequently, loss of IGFBP-1 and integrin α5β1 by genetic and pharmacological approaches re-sensitized HCC to lenvatinib treatment.

CONCLUSIONS

Together, our data shed light on mechanisms underlying acquired resistance of HCC to antiangiogenic TKIs. Antiangiogenic TKIs induced an increase of tumor IGFBP-1, which promoted angiogenesis through activating the IGFBP-1-integrin α5β1 pathway. These data bolster the application of a new therapeutic concept by combining antiangiogenic TKIs with IGFBP-1 inhibitors.

Project Optimus, an FDA initiative: Considerations for cancer drug development internationally, from an academic perspective

Modern cancer therapeutics are increasingly targeted, bringing the promise of new and improved activity, alongside better tolerability. However, while many are indeed resulting in dramatic improvements in disease control and patient survival, short- and long-term tolerability has not always accompanied it. The choice of dose and schedule is often in the upper range of the therapeutic window, driven by the maximum tolerated dose (MTD) model of previous cytotoxic agents. There is increasing recognition that this needs to change, by taking a more holistic approach to determine the optimal dose for desired biological effects and tolerability early in clinical development. In the US, the FDA's Oncology Centre of Excellence is addressing this via the Project Optimus initiative: aiming to reform dose optimisation studies so that they can demonstrate the most appropriate dose selection. Early clinical development will need to demonstrate the dose-exposure, -pharmacodynamic, -toxicity and -activity relationships, including randomised evaluations for dose selection. Regulatory agencies outside the US are similarly exploring this. Along with Australia, Brazil, Canada, Israel, Singapore and Switzerland, the UK participates in Project Orbis, a collaborative program with the FDA to accelerate patient access to new cancer medicines through coordinated regulatory review. Close alignment with Project Optimus will be important internationally and will require changes across industry, including for academic units and small biotech. We discuss our perspective on the implications, and opportunities, for early phase oncology trials as a uniquely charity-funded drug development facility, the Centre for Drug Development within the Cancer Research UK charity.

Five years of lenvatinib in hepatocellular carcinoma: are there any predictive and/or prognostic factors?

INTRODUCTION

Lenvatinib was the first drug approved in 2017 for first-line treatment of hepatocarcinoma (HCC) after 10 years of Sorafenib as exclusive standard of care. The therapeutic armamentarium has recently expanded following the approval of atezolizumab plus bevacizumab.

AREAS COVERED

Numerous studies have been conducted during the past 5 years on Lenvatinib use in real-world settings in an effort to determine prognostic and predictive factors of Lenvatinib efficacy. In order to choose the most effective therapeutic approach, it may be helpful to summarize these results in this review.

EXPERT OPINION

A subgroup that appears to benefit most from Lenvatinib therapy are patients with non-viral cirrhosis. This aspect is of great importance today considering the increase in NASH prevalence. Also, a significant proportion of BCLC B patients appear to respond well to Lenvatinib therapy. The biological heterogeneity highlighted in HCC patients, along with the growing number of therapeutic options, makes the identification of stratification tools able to define which patients are more likely to respond to a treatment rather than another one of crucial interest. Further investigation deepening the biological pathways underlying HCC carcinogenesis are of particular interest in order to pave the way for precision medicine even for HCC patients.

Lenvatinib-induced severe generalized erythematous rash in a patient with hepatocellular carcinoma

Lenvatinib, an oral multikinase inhibitor, is a first-line drug for the treatment of unresectable hepatocellular carcinoma. Here, we report a case of a 72-year-old man who presented with severe generalized erythematous rash (GER) approximately four weeks after the commencement of lenvatinib treatment, which he had been receiving for the treatment of unresectable lung metastases stemming from hepatocellular carcinoma. The patient had suffered from ichthyosis since his childhood, which made the diagnosis difficult. He had been diagnosed with dermatomycosis of the skin of whole body and treated by terbinafine tablets and luliconazole cream at another hospital. After remission of GER, lenvatinib was readministered because the patient’s metastatic lung tumor enlarged, which led to a recurrence of erythema with pruritus on the upper part of patient’s body. We confirmed the diagnosis of Lenvatinib-induced generalized GER based on the positive result of the patch test after the informed consent. To the best of our knowledge, this is the first detailed case of lenvatinibinduced GER. Raising physicians’ awareness of this potentially severe adverse effect is of importance because of lenvatinib’s increasing prominence as the drug of choice in cancer therapy.

Prognostic significance of lung metastasis-related finding in lenvatinib treatment for differentiated thyroid cancer

PURPOSE

This study aimed to analyze the clinical course of patients with differentiated thyroid cancer (DTC) who were treated by lenvatinib and investigate the specific criteria for the initiation of lenvatinib in lung metastasis.

METHODS

A total of 111 patients with DTC treated by lenvatinib were included in the study. Patients were divided into two groups based on the target lesion for the initiation of lenvatinib: lung metastasis group and other metastases group.

RESULTS

In the univariate analysis, the tumor size for the lung metastasis (p = 0.002) and the factor of lung metastasis group (p &lt; 0.001) were significantly associated with overall survival (OS). Multivariate analysis revealed that the factor of lung metastasis group [hazard ratio, 0.408; 95% confidence interval (CI), 0.206-0.810; p = 0.010] was the only independent prognostic factor of OS. Of the 53 patients in the lung metastasis group, 12 (23%) had lung metastasis-related finding such as pleural effusion (n = 12), hemoptysis (n = 2), and dyspnea (n = 1) at the initiation of lenvatinib treatment. The median OS in patients with or without lung metastasis-related findings were 41.0 [95% CI, 10.4-not available (NA)] months and 62.9 (95% CI, 53.0-NA) months, respectively (p = 0.022).

CONCLUSION

Patients with lung metastasis-related finding at the initiation of lenvatinib treatment had a poorer prognosis among the lung metastasis group. It is important to consider not only the tumor size but also the presence of lung metastasis-related findings when initiating lenvatinib treatment for DTC patients with lung metastasis.

Deterioration of liver function and aging disturb sequential systemic therapy for unresectable hepatocellular carcinoma

This study aimed to investigate the clinical characteristics of patients with unresectable hepatocellular carcinoma (HCC), who were eligible for sequential systemic therapy. We evaluated 365 patients with HCC who underwent systemic therapy after 2017. The overall survival (OS) was 13.7 months, 19.2 months, and 35.6 months in the first-line, second-line, and third-line or later therapy groups, respectively. Multivariate analysis revealed that the modified-albumin-bilirubin (m-ALBI) grade, macrovascular invasion, extrahepatic spread, discontinuation due to adverse events (AEs), and sequential therapy were independent factors for OS. At the end of each therapy, the ALBI score was significantly worse among patients with discontinuation due to AEs than among those without. The conversion rate to second-line and third-line therapy among patients with discontinuation due to AEs was significantly lower than that among patients without (30.4% vs. 69.2%, p < 0.001; 6.7% vs. 58.3%; p < 0.001, respectively). In the decision tree analysis, m-ALBI grade 1 or 2a and non-advanced age were selected splitting variables, respectively, for sequential systemic therapy. In conclusion, sequential therapy prolonged the OS of unresectable HCC. Additionally, good hepatic function and non-advanced age were clinically eligible characteristics for sequential systemic therapy.

A preliminary study on drug switching strategy for second-line therapy after combination treatment of tyrosine kinase inhibitors and immune checkpoint inhibitors for unresectable hepatocellular carcinoma

Background: Combination treatment with tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors (ICIs) has been widely used in patients with unresectable hepatocellular carcinoma (uHCC). As no standard guidelines exist for second-line therapy after failure of combination treatment, this study aimed to determine a better drug-switching strategy.

Methods: A total of 785 patients with uHCC who initially received a combination treatment of TKIs and ICIs between January 2017 and December 2021 at our center were screened. After applying the inclusion and exclusion criteria, a total of 102 patients were included in the study. Based on drug switching strategy, patients were divided into a single drug-switching group (A group, n = 49) and a double drug-switching group (B group, n = 53). The comparative effectiveness between groups A and B was assessed based on treatment response and survival time. Second progression-free survival (SPFS) and overall survival (OS) were compared using the Kaplan-Meier method and log-rank test.

Results: Compared to group B, group A had a higher overall response rate (16.3% vs. 3.8%; p = 0.0392) and disease control rate (61.2% vs. 49.1%; p = 0.238). The median SPFS in group A was longer than that in group B (5.47 vs. 3.8 months; HR = 1.70, p = 0.0176). In the second-line therapy, the inclusion of lenvatinib resulted in a better SPFS than other TKI treatments (5.53 vs. 2.83 months, p = 0.0038).

Conclusion: After the failure of the combination treatment of TKIs and ICIs, single-drug switching significantly prolonged median SPFS in uHCC patients, and retaining lenvatinib resulted in the survival benefit of single-drug switching.

Successful treatment with lenvatinib in a patient with thymic carcinoma presenting with cardiac tamponade: a case report and review of literature

Thymic carcinoma (TC) presenting with cardiac tamponade has a poor prognosis because of the difficulty in controlling malignant pericardial effusion using conventional chemotherapy. Lenvatinib, a multitargeted kinase inhibitor of vascular endothelial growth factor receptor and other kinases, has recently been proven effective against TC. As the inhibition of vascular endothelial growth factor signaling is effective in malignant pericardial effusion, lenvatinib may also be effective in TC presenting with cardiac tamponade. However, no reports have shown that lenvatinib is effective in such cases. Herein, we present a case of successful treatment with lenvatinib in a patient with TC presenting with cardiac tamponade. The present case suggests that lenvatinib should be considered an effective treatment option for such cases.

Case Report: Exacerbation of varices following atezolizumab plus bevacizumab treatment of hepatocellular carcinoma: A case series and literature review

Recently, a combined regimen of atezolizumab and bevacizumab (AB) treatment has been approved as a first-line treatment in patients with advanced hepatocellular carcinoma (HCC), contributing to prolonged survival. However, we often encounter cases where treatment must be discontinued due to the occurrence of adverse events. One of these events, which is often fatal, is gastrointestinal bleeding. To clarify the clinical effects of gastrointestinal bleeding after AB treatment, we evaluated patients with HCC who were treated with AB at our institution. Of the 105 patients, five treated with AB developed gastrointestinal bleeding, necessitating treatment discontinuation. Additionally, we encountered two cases where exacerbation of varicose veins was observed, and AB therapy could be continued by preventive treatment of varices. In conclusion, an appropriate follow-up is required during treatment with AB to prevent possible exacerbation of varicose veins.

RAE1 is a prognostic biomarker and is correlated with clinicopathological characteristics of patients with hepatocellular carcinoma

Background

Hepatocellular carcinoma (HCC) is a primary malignant tumor that accounts for approximately 90% of all cases of primary liver cancer worldwide. Microtubule alterations may contribute to the broad spectrum of resistance to chemotherapy, tumor development, and cell survival. This study aimed to assess the value of ribonucleic acid export 1 (RAE1), as a regulator of microtubules, in the diagnosis and prognosis of HCC, and to analyze its correlation with genetic mutations and pathways in HCC.

Results

The mRNA and protein levels of RAE1 were significantly elevated in HCC tissues compared with those in normal tissues. The high expression level of RAE1 was correlated with T stage, pathologic stage, tumor status, histologic grade, and alpha-fetoprotein level. HCC patients with a higher expression level of RAE1 had a poorer prognosis, and the expression level of RAE1 showed the ability to accurately distinguish tumor tissues from normal tissues (area under the curve (AUC) = 0.951). The AUC values of 1-, 3-, and 5-year survival rates were all above 0.6. The multivariate Cox regression analysis showed that RAE1 expression level was an independent prognostic factor for a shorter overall survival of HCC patients. The rate of RAE1 genetic alterations was 1.1% in HCC samples. Gene ontology and kyoto encyclopedia of genes and genomes pathway enrichment analyses indicated the co-expressed genes of RAE1 were mainly related to chromosome segregation, DNA replication, and cell cycle checkpoint. Protein–protein interaction analysis showed that RAE1 was closely correlated with NUP205, NUP155, NUP214, NUP54, and NXF1, all playing important roles in cell division and mitotic checkpoint.

Conclusion

RAE1 can be a potential diagnostic and prognostic biomarker associated with microtubules and a therapeutic target for HCC.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12859-022-04806-8.

Poor tolerability of lenvatinib in elderly patients ≥80 years old with hepatocellular carcinoma: A multicenter observational study

INTRODUCTION

Management of elderly patients with cancer has become a global issue. We investigated the safety and tolerability of lenvatinib in hepatocellular carcinoma (HCC) patients ≥80 years old.

METHODS

We retrospectively evaluated 61 HCC patients and divided them into 2 groups: an elderly group (n = 13, ≥80 years old) and a younger group (n = 48, <80 years old). We compared the adverse events (AEs), administration period, dose intensity, objective response, and progression-free survival (PFS) between the two groups.

RESULTS

The discontinuation of lenvatinib due to AEs was more frequent in the elderly group (8/13, 61.5%) than in the younger group (10/48, 20.8%) (P = 0.0043). Fatigue and appetite loss accounted for half of the cases discontinued due to AEs in the elderly group. The elderly group had a significantly lower 8-week-delivered dose intensity/body surface area ratio (147.2) and 8-week-relative dose intensity (50.0%) than those in the younger group (267.4, 67%) (P = 0.003, 0.029). The objective response rate was significantly lower in the elderly group (15.4%) than in the younger group (61.5%) (P = 0.021). The PFS in the elderly group tended to be shorter than that in the younger group (P = 0.058, hazard ratio [HR] 1.98). The modified albumin-bilirubin (mALBI) grade (hepatic function) (HR, 2.60; P = 0.01) and objective response (HR, 0.41; P = 0.011) were independently associated with the PFS in the multivariate analysis.

CONCLUSION

The management of AEs is crucial for adherence and maintaining the dose intensity of lenvatinib in elderly HCC patients.

Optimal management of lenvatinib therapy for patients with unresectable hepatocellular carcinoma by balancing the therapeutic effect with the relative dose intensity

AIMS

We aimed to assess the optimal management of first or later-line lenvatinib therapy (LEN) for patients with unresectable hepatocellular carcinoma (uHCC), by clarifying the difference of degree between relative dose intensity (RDI) to achieve objective response (OR) and disease control (DC) by aiming at stable disease (SD), taking dose modifications into consideration.

METHODS

One hundred uHCC patients who received LEN in first- or later-line settings, between April 2018 and December 2020 in our hospital were analyzed retrospectively. The factors associated with overall survival (OS), time to progression (TTP), OR and DC were assessed. The optimal cut-off values of RDI 4 weeks after initiation of LEN (RDI during cycle 1) and total RDI (RDI during all cycles) to predict achievement of OR and DC by aiming at SD were determined by receiver operator curve analysis.

RESULTS

Achievement of OR and SD were favorable factors for OS (HR, 0.080 and 0.20) and TTP (HR, 0.052 and 0.073), with progressive disease defined as the reference. RDI ≥ 0.8 during cycle 1 and RDI ≥ 0.4 during cycle 1 contributed to achievement of OR (odds ratio, 3.28) and DC (odds ratio, 4.85), respectively. Experience of dose interruption was associated with a favorable TTP (HR, 0.58). The therapeutic line of LEN did not contribute to OS, TTP or best response.

CONCLUSIONS

To achieve OR and SD for a favorable outcome of first- or later-line LEN, high and moderate early-phase RDI are required, respectively. The degree of RDI during LEN and tolerance need compatible by dose modifications.

Lenvatinib for Hepatocellular Carcinoma Patients with Nonviral Infection Who Were Unlikely to Respond to Immunotherapy: A Retrospective, Comparative Study

AIM

Atezolizumab plus bevacizumab (atezo + bev) shows a good overall survival (OS) in advanced hepatocellular carcinoma (HCC) patients. However, the OS of patients with nonviral infection is quite worse than that in those with viral infection. The present study investigated the efficacy and safety of lenvatinib in patients with nonviral infection, who were unlikely to obtain benefit from atezo + bev.

METHODS

We conducted a multicenter retrospective study that included 139 advanced HCC patients treated with lenvatinib between March 2018 and September 2020.

RESULTS

The median age was 72 years, and 116 patients (83.5%) were male. Based on the etiology of liver disease, 84 (60.4%) and 55 patients (39.6%) were assigned to the viral infection and nonviral infection groups, respectively. The significant extents in patient characteristics were not observed in both groups. The objective response rate per mRECIST and progression-free survival (PFS) did not differ significantly between the viral infection and nonviral infection groups (36.0 vs. 33.0%, p = 0.85; and 7.6 vs. 7.5 months, p = 0.94, respectively). The 1-year survival rates were 68.7% (95% confidence interval [CI] 57.7-79.7%) in the viral infection group and 59.5% (95% CI 45.2-73.8%) in the nonviral infection group. The viral infection group was not a significant factor associated with the PFS or OS in a multivariate analysis.

CONCLUSIONS

Lenvatinib shows no significant difference in response between patients with and without viral infection. Treatment strategies based on the etiology of liver disease may lead to good clinical outcome.

Fatigue and its management in cancer patients undergoing VEGFR-TKI therapy

INTRODUCTION

Fatigue is the most common side effect of cancer and cancer treatment and is often called cancer fatigue or cancer-related fatigue. For cancer patients, cancer-related fatigue has a negative impact on participation in work and social activities, mood, and daily activities, significantly impairing quality of life. Vascular endothelial growth factor receptor tyrosine kinase inhibitors (VEGFR-TKIs) sometimes cause fatigue, and early detection and appropriate management of fatigue in cancer patients treated with a VEGFR-TKI prevent fatigue from becoming more severe, thus maximizing the benefits of the treatment.

AREAS COVERED

This paper focuses on fatigue and discusses its frequency, assessment, risk factors, and management methods.

EXPERT OPINION

The drugs currently available for treating cancer-related fatigue are not effective enough, and their mechanisms of action are not fully understood. Some agents have demonstrated efficacy as treatments for fatigue due to pharmacotherapy, and further elucidation of their mechanisms is expected, together with the development of new drugs. Since fatigue has a range of causes, its treatment requires not only medication, but also exercise, nutrition, and other therapeutic approaches. The successful treatment of fatigue will therefore need multidisciplinary therapy involving the establishment of systems of cooperation across various specialties.

Lenvatinib: established and promising drug for the treatment of advanced hepatocellular carcinoma

INTRODUCTION

: The evolving therapeutic landscape of advanced hepatocellular carcinoma (HCC) includes the increasing implementation of target-therapy and immunotherapy. Lenvatinib, a multi-target tyrosine kinase inhibitor (TKI), is an emerging first-line therapy for hepatocellular carcinoma. Its approval has changed the scenario of first-line therapies for advanced HCC, where just sorafenib proved clinical efficacy for over a decade.

AREAS COVERED

: The current evidence on the role of lenvatinib for patients with advanced HCC is reviewed in this article. Particularly, therapeutic mechanisms and clinical efficacy of lenvatinib are summarized and the management of adverse events is discussed. In addition, future perspectives on the emerging role of combine therapy for HCC are highlighted.

EXPERT OPINION

In the first line, lenvatinib was found to be non-inferior to sorafenib for overall survival, with significantly better progression-free survival and objective response rate. Immune checkpoint inhibitors (ICIs) are now part of HCC treatment, and recently the combination of atezolizumab plus bevacizumab has become the recommended standard of care first-line therapy for selected patients. The antitumor and immunomodulatory activities that lenvatinib shows in preclinical studies, and the positive outcomes achieved using a combination of lenvatinib plus ICIs, open new perspectives for advanced HCC treatment.

Lenvatinib for poorly differentiated carcinoma of the anterior mediastinum

We describe a Case of a 74-year-old Japanese man with poorly differentiated carcinoma of the anterior mediastinum. The patient underwent anterior mediastinal tumor resection through median sternotomy. The tumor, 7.0 × 5.0 cm, had invaded surrounding tissues (pericardium, right lung, right and left brachiocephalic veins, and superior vena cava). Complete resection of the tumor was not performed. One month after the operation, the patient developed multiple pulmonary metastases, right pleural dissemination, and carcinomatous pleurisy. He was treated with lenvatinib, a novel multi-kinase inhibitor, to which the metastasis responded favorably. This case reports for the first time the clinical usefulness of lenvatinib for poorly differentiated carcinoma of the anterior mediastinum. Management of side effects by several methods, including suspending use of medication on weekends (called a weekends-off strategy), is another strong argument to continue lenvatinib administration.

Prognostic significance of 8 weeks' relative dose intensity of lenvatinib in treatment of radioiodine-refractory differentiated thyroid cancer patients

Lenvatinib is a standard therapy for radioiodine-refractory differentiated thyroid cancer (RR-DTC). However, because of the high incidence of adverse events resulting from this treatment, it is not easy to maintain the dose intensity of lenvatinib, especially in Japanese patients. Although the prognostic impact of lenvatinib dose interruption has been reported, the target dose intensity of lenvatinib to optimize survival benefits remains unknown. We therefore propose a target dose intensity of lenvatinib during the first 8 weeks of treatment. We retrospectively analyzed 42 RR-DTC patients who were treated with lenvatinib for more than 8 weeks. We performed receiver operating characteristic curve analysis to determine the cut-off value of 8 weeks' relative dose intensity (8w-RDI) to predict treatment response, and identified that the optimal cut-off value of 8w-RDI was 60% (sensitivity: 81.8%; specificity: 80.6%). Median progression-free survival (PFS) (not reached [NR] vs. 11.0 months; hazard ratio [HR] 0.29; 95% confidence interval [CI] 0.11-0.72; p < 0.01) and overall survival (NR vs. 27.6 months; HR 0.44; 95% CI 0.11-0.91; p = 0.03) were longer in the higher 8w-RDI (≥60%) patients than in the lower 8w-RDI (<60%) patients. Multivariate analysis revealed that 8w-RDI at ≥60% was an independent prognostic factor for PFS (HR 0.29; 95% CI 0.09-0.96; p = 0.04). Targeting for ≥60% of the relative dose intensity during the first 8 weeks of lenvatinib treatment can be sufficient to achieve significant tumor shrinkage and prolong PFS in RR-DTC patients.

Improved indocyanine green retention after short-term lenvatinib withdrawal in three patients with hepatocellular carcinoma

Use of lenvatinib, which has a high response rate in advanced hepatocellular carcinoma, sometimes results in tumor shrinkage and resectability of previously unresectable liver cancers. In Asia, including Japan, liver reserve, one of the determinants of resectability, is mainly determined by the indocyanine green (ICG) retention rate. Three patients with advanced liver cancer treated at our institution had very poor ICG retention rates during treatment with lenvatinib. Lenvatinib may reduce blood flow in both cancerous and non-cancerous regions by inhibiting vascular endothelial growth factor. Therefore, accurate determination of liver function likely requires withdrawal of this treatment several days before ICG retention testing.

Initial Experience of Atezolizumab Plus Bevacizumab for Unresectable Hepatocellular Carcinoma in Real-World Clinical Practice

Simple Summary

Although the clinical trial of atezolizumab plus bevacizumab have revealed its efficacy for HCC, the outcomes in the real-world clinical practice are unclear. In the study, we retorspectively evaluated the efficacy and safety of atezoizumab plus bevacizumab for HCC. Atezorizumab plus bevacizumab was effective and safe even in the real-world clinical practice including patients with HCC in a previous MTA history or other than ALBI grade 1.

Abstract

Background: Atezolizumab plus bevacizumab was approved for patients with hepatocellular carcinoma (HCC). Although clinical trials have revealed its efficacy, the outcomes in the real-world clinical practice are unclear. We retrospectively evaluated the efficacy and safety of atezolizumab plus bevacizumab for HCC. Materials and Methods: This is a multicenter study conducted between November 2020 and March 2021. Among the 61 patients, 51 were assessed for progression-free survival (PFS), therapeutic response, and adverse events (AEs). Results: The median PFS was 5.4 months. The objective response rate (ORR) was 35.3%. The disease control rate (DCR) was 86.3%. The incidence rates of AEs at any grade and grade >3 were 98.0% and 29.4%, respectively. The most frequent AE at any grade and grade >3 was hepatic disorder. In patients with a previous history of molecular targeted agent (MTA) or the degree of albumin-bilirubin (ALBI) grade, there were no significant differences in the PFS, ORR, DCR, and incidence rates of AEs. Conclusion: The study demonstrated that atezolizumab plus bevacizumab was effective and safe for patients with HCC even in the real-world setting including patients with a previous MTA history or other than ALBI grade 1.

The Real-World Data in Japanese Patients with Unresectable Hepatocellular Carcinoma Treated with Lenvatinib from a Nationwide Multicenter Study

BACKGROUND

Lenvatinib (LEN) has been approved for patients with unresectable hepatocellular carcinoma (u-HCC) since March 2018 in Japan. We performed a retrospective nationwide multicenter study to clarify the clinical characteristics of LEN in real-world practice.

METHODS

A total of 343 u-HCC patients who received LEN from March 2018 to May 2020 at 23 sites in Japan were registered.

RESULTS

During the median observation period of 10.5 months, 143 patients died. In Child-Pugh A (n = 276) and Child-Pugh B (n = 67) patients, the median overall survival (OS) was 21.0 and 9.0 months. The median progression-free survival (PFS) was 8.8 months in Child-Pugh A patients. The objective response rate (ORR) and disease control rate (DCR) according to modified response evaluation criteria in solid tumors (RECIST criteria) were 42.1% and 82.1%. The independent pretreatment factors associated with mortality in all patients were AFP ≥ 400 ng/mL (hazard ratio (HR) 2.00, 95% confidential interval (95% CI) 1.08-2.09, p < 0.0001), modified albumin-bilirubin (ALBI) grade 2b or 3 (HR 1.56, 95% CI 1.09-2.17, p = 0.012), major vascular invasion (HR 1.91, 95% CI 1.26-2.89, p = 0.0022), PS > 0 (HR 1.50, 95% CI 1.09-2.08, p = 0.014), and MTT (molecular targeted therapy) experience (HR 2.22, 95% CI 1.56-3.13, p = 0.00038). In the MTT naïve patients with ALBI grade 1 or modified ALBI 2a and BCLC stage B (n = 68), median OS and PFS were 25.3 and 12.3 months. Liver-related adverse events during LEN were the only significant adverse event associated with OS (HR 2.74, 95% CI 1.93-3.88, p < 0.0001). Among the Child-Pugh A patients with extrahepatic metastasis and no major vascular invasion, median PFS in the patients with bone metastasis was significantly shorter than those with lung or adrenal grand metastasis (6.3 vs. 12.5 months, p = 0.0025).

CONCLUSION

LEN showed a high response rate in real-world practice. Pretreatment factors, including ALBI score, AFP, and major vascular invasion are important in making a treatment strategy for patients with u-HCC. The patients with bone metastasis would be candidates for new therapeutic approaches.

Posttreatment after Lenvatinib in Patients with Advanced Hepatocellular Carcinoma

BACKGROUND

There is no standard posttreatment for patients with advanced hepatocellular carcinoma (HCC) in whom lenvatinib therapy has failed. This study aimed to investigate rates of migration to posttreatment after lenvatinib and to explore candidates for second-line agents in the patients with failed lenvatinib therapy.

METHODS

We retrospectively collected data on patients with advanced HCC who received lenvatinib as the first-line agent in 7 institutions.

RESULTS

Overall survival and progression-free survival (PFS) of 178 patients who received lenvatinib as the first-line agent were 13.3 months (95% confidence interval [CI], 11.5-15.2) and 6.7 months (95% CI, 5.6-7.8), respectively. Sixty-nine of 151 patients (45.7%) who discontinued lenvatinib moved on to posttreatment. The migration rates from lenvatinib to the second-line agent and from the second-line agent to the third-line agent were 41.7 and 44.4%, respectively. Based on multivariate analysis, response to lenvatinib (complete or partial response according to modified RECIST) and discontinuation of lenvatinib due to radiological progression, as well as male were associated with a significantly higher probability of migration to posttreatment after lenvatinib. On the other hand, alpha-fetoprotein levels of 400 ng/mL or higher was correlated with a significantly lower probability of migration to posttreatment after lenvatinib. Of 63 patients who received second-line systemic therapy, 53 (84.2%) were administered sorafenib. PFS, objective response rate (ORR), and disease control rate (DCR) for sorafenib treatment were 1.8 months (95% CI, 0.6-3.0), 1.8%, and 20.8%, respectively. According to the Cox regression hazard model, Child-Pugh class B significantly contributed to shorter PFS. PFS, ORR, and DCR of 22 patients who received regorafenib after lenvatinib in any lines were 3.2 months (range, 1.5-4.9 months), 13.6%, and 36.3%, respectively. Similarly, PFS, ORR, and DCR of 17 patients who received regorafenib after lenvatinib in the third-line (after sorafenib) were 3.8 months (range, 1.1-6.5 months), 17.6%, and 41.2%, respectively.

CONCLUSION

Sorafenib may not be a candidate for use as a posttreatment agent after lenvatinib, according to the results of the present study. Regorafenib has the potential to become an appropriate posttreatment agent after lenvatinib.

Lenvatinib for Hepatocellular Carcinoma: A Literature Review

Lenvatinib, which is an oral multikinase inhibitor, showed non-inferiority to the sorafenib in terms of overall survival (OS) and a higher objective response rate (ORR) and better progression-free survival (PFS) in patients with hepatocellular carcinoma (HCC). A good liver function and Barcelona Clinic Liver Cancer (BCLC) intermediate stage were the key factors in achieving therapeutic efficacy. The management of adverse events plays an important role in continuing lenvatinib treatment. While sequential therapies contributed to prolonging overall survival, effective molecular targeted agents for the administration after lenvatinib have not been established. Repeated transcatheter arterial chemoembolization (TACE) was associated with a decline in the liver function and poor therapeutic response in BCLC intermediate patients. Recently, the Asia-Pacific Primary Liver Cancer Expert (APPLE) Consensus Statement proposed the criteria for TACE unsuitability. Upfront systemic therapy may be better for the BCLC intermediate stage HCC patients with a high tumor burden, while selective TACE will be recommended for obtaining a curative response in patients with a low tumor burden. This article reviews the therapeutic response, management of adverse events, post-progression treatment after Lenvatinib, and treatment strategy for BCLC intermediate stage HCC.

The safety and efficacy of lenvatinib combined with immune checkpoint inhibitors therapy for advanced hepatocellular carcinoma

China has one of the highest incidence rates of hepatocellular carcinoma (HCC) in the world. As most patients are diagnosed with advanced or unretractable HCC, systematic therapy is still the main treatment method for HCC. Currently, tyrosine kinase inhibitors (TKIs) and Immune checkpoint inhibitors (ICIs) are both the chief systematic therapy. And some studies have shown that the combination of TKIs and ICIs is more effective than monotherapy. The purpose of this review is to outline the rationale for the combination between lenvatinib and anti-PD-1(programmed cell death 1) and clinical trials to support this "golden combination". We also discuss the commonly treatment-emergent adverse events (AEs) and solutions for the patients with HCC who received the combination between lenvatinib and anti-PD-1 antibodies. Finally, we focus on the novel approaches, future perspectives and potential challenges about the combination of TKIs and ICIs.

Clinical Significance of Adverse Events for Patients with Unresectable Hepatocellular Carcinoma Treated with Lenvatinib: A Multicenter Retrospective Study

We sought to investigate the clinical profile(s) associated with the discontinuation of lenvatinib (LEN) due to severe adverse events (DLSAE) in patients with unresectable hepatocellular carcinoma (HCC). This retrospective study enrolled 177 patients with HCC treated with LEN. Independent factors associated with DLSAE were advanced age, albumin-bilirubin (ALBI) grade 2, fatigue grade ≥ 3, and appetite loss ≥ 2. The overall survival (OS) in the group that did not require DLSAE was significantly longer compared to the group that did require DLSAE (median survival time (MST): not reached vs. 12.8 months, p < 0.001). Moreover, advanced age was the most important variable for DLSAE in a decision tree analysis. Hypertension and hand-foot-skin-reaction (HFSR) were also significantly associated with longer survival, and the occurrence of hypertension was the earliest predictor for improved prognosis, while appetite loss and development of grade ≥ 3 fatigue were predictive of a poor prognosis. We concluded that the appearance of hypertension has potential as an early surrogate marker to predict improved prognosis. Moreover, careful management to avoid discontinuation of treatment leads to longer survival in patients receiving LEN.