Does first-line treatment have prognostic impact for unresectable HCC?-Atezolizumab plus bevacizumab versus lenvatinib

BACKGROUND/AIM

A comparison of therapeutic efficacy between atezolizumab plus bevacizumab (Atez/Bev) and lenvatinib treatment given as first-line therapy for unresectable hepatocellular carcinoma (u-HCC) in regard to progression-free survival (PFS) overall survival (OS) has not been reported. We aimed to elucidate which of those given as initial treatment for u-HCC has greater prognostic impact on PFS and OS of affected patients, retrospectively.

MATERIALS/METHODS

From 2020 to January 2022, 251 u-HCC (Child-Pugh A, ECOG PS 0/1, BCLC-B/C) treated were enrolled (Atez/Bev-group, n = 194; lenvatinib-group, n = 57). PFS and OS were analyzed following adjustment based on inverse probability weighting (IPW).

RESULTS

There was a greater number of patients with macro-vascular invasion in Atez/Bev-group (22.7% vs. 8.8%, p = 0.022). In lenvatinib-group, the frequencies of appetite loss (38.6% vs. 19.6%, p = 0.002), hypothyroidism (21.1% vs. 6.7%, p = 0.004), hand foot skin reaction (19.3% vs. 1.0%, p < 0.001), and diarrhea (10.5% vs. 4.6%, p = 0.012) were greater, while that of general fatigue was lower (22.8% vs. 26.3%, p = 0.008). Comparisons of therapeutic best response using modified response evaluation criteria in solid tumors (mRECIST) did not show significant differences between the present groups (Atez/Bev vs. lenvatinib: CR/PR/SD/PD = 6.1%/39.1%/39.1%/15.6% vs. 0%/48.0%/38.0%/14.0%, p = 0.285). In patients of discontinuation of treatments, 48.2% switched to lenvatinib, 10.6% continued beyond PD, 8.2% received another systemic treatment, 5.9% underwent transcatheter arterial chemoembolization (TACE), 3.5% received hepatic arterial infusion chemotherapy (HAIC), and 1.2% underwent surgical resection in Atez/Bev-group, while 42.2% switched to Atez/Bev, 4.4% continued beyond PD, 4.4% received another systemic treatment, 2.2% nivolumab, 6.7% received TACE, and 2.2% received HAIC in lenvatinib-group. Following adjustment with inverse probability weighting (IPW), Atez/Bev-group showed better PFS (0.5-/1-/1.5-years: 56.6%/31.6%/non-estimable vs. 48.6%/20.4%/11.2%, p < 0.0001) and OS rates (0.5-/1-/1.5-years: 89.6%/67.2%/58.1% vs. 77.8%/66.2%/52.7%, p = 0.002).

CONCLUSION

The present study showed that u-HCC patients who received Atez/Bev as a first-line treatment may have a better prognosis than those who received lenvatinib.

Neutrophil-lymphocyte ratio predicts early outcomes in patients with unresectable hepatocellular carcinoma treated with atezolizumab plus bevacizumab: a multicenter analysis

OBJECTIVE

To investigate whether neutrophil-to-lymphocyte ratio (NLR) can predict outcomes in patients with unresectable hepatocellular carcinoma (HCC) treated with atezolizumab plus bevacizumab (Atez/Bev).

METHODS

A total of 249 patients with unresectable HCC treated with Atez/Bev were included. We analyzed survival and discontinuation of this therapy in this cohort.

RESULTS

Cumulative overall survival at 2, 4, 6, and 8 months was 97.6%, 94.9%, 88.9%, and 82.8%, respectively. Cumulative overall survival differed significantly between patients with low (<3.0) versus high (≥3.0) NLR (P = 0.001). Conversely, cumulative progression-free survival did not differ between patients with low versus high NLR. The distribution of response was 1.5% for complete response, 17.1% for partial response, 60.5% for stable disease, and 21.0% for progressive disease. Responses were not different between patients with low and high NLR. Regarding adverse events, immune-related liver injury of any grade and grade of at least 3, decreased appetite of any grade, grade of at least 3 proteinuria, and other adverse events of any grade differed significantly between patients with low and high NLR. There were 56, 18, and 2 patients who discontinued Atez/Bev therapy due to progression of disease, adverse event, and other reasons, respectively. The cumulative discontinuation rate for Atez/Bev therapy due to adverse events differed significantly between patients with low versus high NLR (P = 0.022). Cox proportional hazards modeling analysis with inverse probability weighting showed that NLR of at least 3.0 was significantly associated with overall survival (hazard ratio, 3.369; 95% confidence interval, 1.024-11.080).

CONCLUSIONS

NLR can predict outcomes in patients with unresectable HCC treated with Atez/Bev.

C-reactive protein to albumin ratio predicts survival in patients with unresectable hepatocellular carcinoma treated with lenvatinib

We investigated the impact of C-reactive protein to albumin ratio (CAR) on predicting outcomes in 522 patients with unresectable hepatocellular carcinoma (HCC) treated with lenvatinib. We determined the optimal CAR cutoff value with time-dependent receiver operating characteristic curve analysis. Additionally, we clarified the relationship between CAR and liver function or HCC progression. Median overall survival was 20.0 (95% confidence interval (CI), 17.2-22.6) months. The optimal CAR cutoff value was determined to be 0.108. Multivariate analysis showed that high CAR (≥ 0.108) (hazard ratio (HR), 1.915; 95% CI, 1.495-2.452), Eastern Cooperative Oncology Group performance status ≥ 1 (HR, 1.429), and α-fetoprotein ≥ 400 ng/mL (HR, 1.604) were independently associated with overall survival. Cumulative overall survival differed significantly between patients with low versus high CAR (p < 0.001). Median progression-free survival was 7.5 (95% CI, 6.7-8.1) months. Multivariate analysis showed that age, CAR ≥ 0.108 (HR, 1.644; 95% CI, 1.324-2.043), and non-hepatitis B, non-hepatitis C etiology (HR, 0.726) were independently associated with progression-free survival. Cumulative progression-free survival differed significantly between patients with low versus high CAR (p < 0.001). CAR values were significantly higher as Japan Integrated Staging score increased (p < 0.001). In conclusion, CAR can predict outcomes in patients with unresectable HCC treated with lenvatinib.

Association of early bevacizumab interruption with efficacy of atezolizumab plus bevacizumab for advanced hepatocellular carcinoma: A landmark analysis

AIM

The present study focused on the association of early bevacizumab (Bev) interruption with the clinical outcome of atezolizumab plus bevacizumab.

METHODS

This retrospective study included 239 patients with advanced hepatocellular carcinoma receiving atezolizumab/Bev from September 2020 to June 2021 at 16 different institutions in Japan. We conducted a 9-week landmark analysis to investigate the association of Bev interruption due to adverse events with the therapeutic efficacy.

RESULTS

The median age was 73.0 (68.0-80.0) years old, with 195 (81.6%) men. The objective response rate was significantly higher in patients without Bev interruption than in those with it (34.5% vs. 17.3%, p = 0.038). The median progression-free survival (PFS) was 6.5 months (95% confidence interval [CI] 4.5-9.7) and 9.0 months (95% CI 7.1-not applicable) in patients with and without Bev interruption, respectively, with statistical significance (p = 0.021). The 12-month overall survival (OS) rates in patients with and without Bev interruption were 49.4% (CI 27.7%-67.9%) and 82.2% (95% CI 70.3%-89.6%), respectively, showing a significant difference (p = 0.004). The presence of Bev interruption was a significant factor associated with the PFS (p = 0.021) and OS (p = 0.008). A multivariate analysis showed that modified albumin-bilirubin 2b (p < 0.001) and later-line treatment (p = 0.018) were unfavorable factors associated with Bev interruption. Liver injury, appetite loss, protein urea, and ascites or hepatic edema were more frequently found in patients with Bev interruption than in those without it.

CONCLUSIONS

Early Bev interruption was an unfavorable factor associated with the PFS and OS. Good liver function and treatment settings may be associated with maintaining Bev treatment.

Safety and efficacy of atezolizumab plus bevacizumab in elderly patients with hepatocellular carcinoma: A multicenter analysis

Aim

The safety and efficacy of atezolizumab plus bevacizumab (Atez/Bev) in elderly patients with unresectable hepatocellular carcinoma (HCC) have not been sufficiently investigated.

Methods

A total of 317 patients with HCC treated with Atez/Bev were studied. We compared the survival and frequency of adverse events in elderly versus non‐elderly patients with HCC who were treated with Atez/Bev using an analysis of inverse probability weighting (IPW).

Results

Univariate analysis adjusted with IPW showed that being elderly is not associated with worse overall or progression‐free survival (hazard ratio [HR], 1.239; 95% confidence interval [CI], 0.640–2.399; p = 0.526 and HR, 1.256; 95% CI, 0.871–1.811; p = 0.223, respectively). Regarding treatment‐related adverse events, any grade of fatigue, proteinuria, decreased appetite, hypertension, and liver injury occurred in ≥10% of patients. There were no significant differences in treatment‐related adverse events between the elderly and non‐elderly groups. In a subgroup analysis of elderly patients aged 75–79, 80–84, or ≥ 85 years, there were no significant differences in cumulative overall or progression‐free survival among these age groups (p = 0.960 and 0.566, respectively). In addition, there were no significant differences in treatment‐related adverse events among these three age groups, except for proteinuria of any grade. In a subgroup analysis of patients treated with Atez/Bev as first‐line systemic therapy, there were no significant differences in cumulative overall or progression‐free survival between the elderly and non‐elderly groups (p = 0.728 and 0.805, respectively).

Conclusions

Atez/Bev can be used efficaciously and safely in spite of age in patients with unresectable HCC.

Endoscopic ultrasound-guided fine-needle biopsy for the diagnosis of gastric linitis plastica

We report two cases of patients with gastric linitis plastica (GLP), in which the histopathological diagnosis was made by endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) using a Franseen-tip needle. Esophagogastroduodenoscopy findings showed mucosal swelling and poor distensibility of the gastric antrum. Abdominal computed tomography findings showed significant thickening of the gastric wall at the antrum. Conventional endoscopic and bite-on-bite biopsy were attempted but resulted in failure to diagnose the lesions. We performed EUS-FNB to obtain histopathological samples from a deeper site, which confirmed the diagnosis. We considered this method safe and effective for the diagnosis of GLP.

Early experience of atezolizumab plus bevacizumab treatment for unresectable hepatocellular carcinoma BCLC-B stage patients classified as beyond up to seven criteria - Multicenter analysis

BACKGROUND/AIM

Although systemic therapy is recommended for patients with multiple intermediate stage unresectable hepatocellular carcinoma (u-HCC) classified as beyond the up-to-7 criteria (UT-7 out/multiple) as a transcatheter arterial chemoembolization (TACE) unsuitable condition, few reports have examined the therapeutic efficacy of atezolizumab plus bevacizumab combination therapy (Atez/Bev) in such cases. This study aimed to elucidate the therapeutic response of Atez/Bev in u-HCC patients classified as UT-7 out/multiple.

MATERIAL/METHODS

From September 2020 to September 2021, 95 u-HCC Japanese patients classified as UT-7 out/multiple/Child-Pugh A were enrolled from 21 institutions (median age 76 years, males 73, Child-Pugh 5:6 = 68:27, TNM stage II:III = 17:78). Therapeutic response was retrospectively evaluated using Response Evaluation Criteria in Solid Tumors (RECIST), ver. 1.1 and modified RECIST (mRECIST).

RESULTS

Atez/Bev was given as first-line treatment to 52 (54.7%). Objective response rate (ORR)/disease control rate (DCR) at six weeks of RECIST and mRECIST were 17.7%/84.7% and 42.5%/86.2%, respectively. Median PFS was 8.0 months (median observation period: 6.0 months). Child-Pugh A/modified Albumin-bilirubin grade (mALBI) 1 and 2a at baseline, 3, 6, and 9 weeks, were 100%/69.4%, 89.8%/57.3%, 94.8%/65.3%, and 91.4%/60.0%, respectively. Among adverse events (any-grade, >10%) during the present observation period, general fatigue was most frequent (23.2%), followed by urine protein (21.1%), appetite loss (20.0%), and hypertension (13.7%).

CONCLUSION

Atez/Bev treatment showed favorable therapeutic response with less influence on hepatic function, suggesting it as a useful therapeutic option for patients with such condition.

Atezolizumab plus bevacizumab treatment for unresectable hepatocellular carcinoma: Early clinical experience

BACKGROUND

Although atezolizumab plus bevacizumab (Atez/bev) treatment has been developed for unresectable hepatocellular carcinoma (u-HCC), changes in hepatic function during therapy have yet to be reported.

AIM

This retrospective clinical study aimed to elucidate early responses to Atez/Bev.

METHODS

From September 2020 to April 2021, 171 u-HCC patients undergoing Atez/Bev treatment were enrolled (BCLC stage A:B:C:D = 5:68:96:2). Of those, 75 had no prior history of systemic treatment. Relative changes in hepatic function and therapeutic response were assessed using albumin-bilirubin (ALBI) score and Response Evaluation Criteria in Solid Tumors (RECIST), ver. 1.1, respectively.

RESULTS

In initial imaging examination findings, objective response rates for early tumor shrinkage and disease control after 6 weeks (ORR-6W/DCR-6W) were 10.6%/79.6%. Similar response results were observed in patients with and without a past history of systemic treatment (ORR-6W/DCR-6W = 9.7%/77.8% and 12.2%/82.9%), as well as patients in whom Atez/Bev was used as post-progression treatment following lenvatinib (ORR-6W/DCR-6W = 7.7%/79.5%), for which no known effective post-progression treatment has been established. In 111 patients who underwent a 6-week observation period, ALBI score was significantly worsened at 3 weeks after introducing Atez/Bev (-2.525 ± 0.419 vs -2.323 ± 0.445, p < .001), but then recovered at 6-weeks (-2.403 ± 0.452) as compared to 3-weeks (p = .001). During the observation period, the most common adverse events were appetite loss (all grades) (12.3%), general fatigue/hypertension (all grades) (11.1%, respectively), and urine protein (all grades) (10.5%).

CONCLUSION

Atez/Bev might have therapeutic potential not only as first but also later-line treatment of existing molecular target agents. In addition, this drug combination may have less influence on hepatic function during the early period, as the present patients showed a good initial therapeutic response.

O-glycosylated HBsAg peptide can induce specific antibody neutralizing HBV infection

BACKGROUND

Hepatitis B virus (HBV), which causes hepatitis, liver cirrhosis, and hepatocellular carcinoma, is a global human health problem. HBV contains three envelope proteins, S-, M-, and L-hepatitis B surface antigen (HBsAg). We recently found that O-glycosylated M-HBsAg, reactive with jacalin lectin, is one of the primary components of HBV DNA-containing virus particles. Thus, we aimed to analyze and target the glycosylation of HBsAg.

METHODS

HBsAg prepared from the serum of Japanese patients with HBV were analyzed using mass spectrometry. The glycopeptide modified with O-glycan was generated and used for immunization. The specificity of the generated antibody and the HBV infection inhibition activity was examined.

RESULTS

Mass spectrometry analysis revealed that T37 and/or T38 on M-HBsAg of genotype C were modulated by ±NeuAc(α2,3)Gal(β1,3)GalNAc. Chemically and enzymatically synthesized O-glycosylated peptide (Glyco-PS2) induced antibodies that recognize mainly PreS2 in M-HBsAg not in L-HBsAg, whereas the non-glycosylated peptide (PS2) induced antisera recognizing L-HBsAg but not O-glycosylated M-HBsAg. The removal of O-glycan from M-HBsAg partly decreased the reactivity of the Glyco-PS2 antibody, suggesting that peptide part was also recognized by the antibody. The antibody further demonstrated the inhibition of HBV infection in human hepatic cells in vitro.

CONCLUSIONS

Glycosylation of HBsAg occurs differently in different HBsAgs in a site-specific manner. The new Glyco-PS2 antibody, recognizing O-glycosylated M-HBsAg of genotype C, could inhibit HBV infection.

GENERAL SIGNIFICANCE

The detailed analysis of HBsAg identified different glycosylations of HBV surface. The glycosylated peptide based on mass spectrometry analysis showed higher potential to induce functional antibody against HBV.

Adverse events as potential predictive factors of activity in patients with advanced hepatocellular carcinoma treated with lenvatinib

BACKGROUND AND AIM

Lenvatinib is a standard of care option in first-line therapy of advanced hepatocellular carcinoma (HCC). In the present study, we aim to identify, in patients with HCC treated with lenvatinib, a possible association between occurrence and grading of adverse events (AEs) and outcome.

METHODS

We performed a retrospective analysis of 606 Japanese and Italian patients treated with lenvatinib in first-line setting and investigated the possible correlation between the onset of AEs, toxicity grade (G) and outcome measures such as overall survival (OS) and progression-free survival (PFS).

RESULTS

The appearance of arterial hypertension G ≥ 2 independently predicted prolonged OS [hazard ratio (HR) 0.66, 95% confidence interval (CI) 0.46-0.93, P = .0188], whereas decreased appetite G ≥ 2 independently predicted decreased OS (HR 1.70, 95% CI 1.25-2.32, P = .0007) by multivariate analysis. Appearance of hand-foot skin reaction independently predicted prolonged PFS (HR 0.72, 95% CI 0.56-0.93, P = .0149), whereas decreased appetite G ≥ 2 predicted decreased PFS (HR 1.36, 95% CI 1.04-1.77, P = .0277).

CONCLUSIONS

Our main findings are that the occurrence of arterial hypertension G ≥ 2 is a predictor of longer survival, whereas decreased appetite G ≥ 2 predicts for a poor prognosis. A careful management of AEs under lenvatinib treatment for HCC is required, to improve patients' quality of life, minimize the need for treatment discontinuation and achieve optimal outcome.

Nonalcoholic steatohepatitis in hepatocarcinoma: new insights about its prognostic role in patients treated with lenvatinib

BACKGROUND

Hepatocellular carcinoma (HCC) treatment remains a big challenge in the field of oncology. The liver disease (viral or not viral) underlying HCC turned out to be crucial in determining the biologic behavior of the tumor, including its response to treatment. The aim of this analysis was to investigate the role of the etiology of the underlying liver disease in survival outcomes.

PATIENTS AND METHODS

We conducted a multicenter retrospective study on a large cohort of patients treated with lenvatinib as first-line therapy for advanced HCC from both Eastern and Western institutions. Univariate and multivariate analyses were performed.

RESULTS

Among the 1232 lenvatinib-treated HCC patients, 453 (36.8%) were hepatitis C virus positive, 268 hepatitis B virus positive (21.8%), 236 nonalcoholic steatohepatitis (NASH) correlate (19.2%) and 275 had other etiologies (22.3%). The median progression-free survival (mPFS) was 6.2 months [95% confidence interval (CI) 5.9-6.7 months] and the median overall survival (mOS) was 15.8 months (95% CI 14.9-17.2 months). In the univariate analysis for OS NASH-HCC was associated with longer mOS [22.2 versus 15.1 months; hazard ratio (HR) 0.69; 95% CI 0.56-0.85; P = 0.0006]. In the univariate analysis for PFS NASH-HCC was associated with longer mPFS (7.5 versus 6.5 months; HR 0.84; 95% CI 0.71-0.99; P = 0.0436). The multivariate analysis confirmed NASH-HCC (HR 0.64; 95% CI 0.48-0.86; P = 0.0028) as an independent prognostic factor for OS, along with albumin-bilirubin (ALBI) grade, extrahepatic spread, neutrophil-to-lymphocyte ratio, portal vein thrombosis, Eastern Cooperative Oncology Group (ECOG) performance status and alpha-fetoprotein. An interaction test was performed between sorafenib and lenvatinib cohorts and the results highlighted the positive predictive role of NASH in favor of the lenvatinib arm (P = 0.0047).

CONCLUSION

NASH has been identified as an independent prognostic factor in a large cohort of patients with advanced HCC treated with lenvatinib, thereby suggesting the role of the etiology in the selection of patients for tyrosine kinase treatment. If validated, this result could provide new insights useful to improve the management of these patients.

Discrepant Diagnostic Results of Nested Polymerase Chain Reaction-based Genotyping in a Patient with Hepatitis C Virus and Human Immunodeficiency Virus Coinfection

Accurate genotyping is important to improve the treatment of hepatitis C virus (HCV) infection. We herein report a 44-year-old Japanese man with hemophilia A and coinfection of HCV and human immunodeficiency virus (HIV) who was diagnosed with HCV genotype 4 by direct sequencing. Two genotyping tests based on the nested polymerase chain reaction method that we used misdiagnosed his genotype as 2b and 1b. Although several HCV genotyping tests are available in Japan, it is important to recognize that some cannot detect genotype 4. Care should be taken when genotyping HCV patients who have received non-heated coagulation factor preparations or were infected abroad.

Efficacy of lenvatinib for unresectable hepatocellular carcinoma based on background liver disease etiology: multi-center retrospective study

It was recently reported that hepatocellular carcinoma (HCC) patients with non-alcoholic steatohepatitis (NASH) are not responsive to immune-checkpoint inhibitor (ICI) treatment. The present study aimed to evaluate the therapeutic efficacy of lenvatinib in patients with non-alcoholic fatty liver disease (NAFLD)/NASH-related unresectable-HCC (u-HCC). Five hundred thirty u-HCC patients with Child-Pugh A were enrolled, and divided into the NAFLD/NASH (n = 103) and Viral/Alcohol (n = 427) groups. Clinical features were compared in a retrospective manner. Progression-free survival (PFS) was better in the NAFLD/NASH than the Viral/Alcohol group (median 9.3 vs. 7.5 months, P = 0.012), while there was no significant difference in overall survival (OS) (20.5 vs. 16.9 months, P = 0.057). In Cox-hazard analysis of prognostic factors for PFS, elevated ALT (≥ 30 U/L) (HR 1.247, P = 0.029), modified ALBI grade 2b (HR 1.236, P = 0.047), elevated AFP (≥ 400 ng/mL) (HR 1.294, P = 0.014), and NAFLD/NASH etiology (HR 0.763, P = 0.036) were significant prognostic factors. NAFLD/NASH etiology was not a significant prognostic factor in Cox-hazard analysis for OS (HR0.758, P = 0.092), whereas AFP (≥ 400 ng/mL) (HR 1.402, P = 0.009), BCLC C stage (HR 1.297, P = 0.035), later line use (HR 0.737, P = 0.014), and modified ALBI grade 2b (HR 1.875, P < 0.001) were significant. Lenvatinib can improve the prognosis of patients affected by u-HCC irrespective of HCC etiology or its line of treatment.

Comparison of Histological Sample Volumes among Various Endoscopic Ultrasound-Guided Biopsy Needles

Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) enables easy and accurate pathological assessment. Here, we compared and assessed the area of samples on glass slides for three needle types: a 19-gauge Franseen needle (Acquire, Boston Scientific, Natick, MA, USA), a 22-gauge Franseen needle, and a 19-gauge fine-needle aspiration (FNA) needle (EZ Shot 3 Plus; Olympus, Tokyo, Japan). Among patients with suspected pancreatic cancer, with a ≥20 mm tumor located in the pancreatic body and tail, and who underwent EUS-FNA or FNB between June 2018 and March 2020, 10 were randomly selected to test each needle. The areas of histological tissue and blood clot samples were measured using the BZ-X800 imaging software (Keyence Corporation, Osaka, Japan). Baseline patient characteristics and pathological sample data showed no significant differences among the needles. The 19-gauge Franseen needle obtained significantly more histological tissue samples than the 19-gauge conventional needle (p = 0.010) and 22-gauge Franseen needle (p = 0.008). Conversely, there was no significant difference between the 19-gauge conventional needle and 22-gauge Franseen needle (p = 0.838) in this regard. The 19-gauge Franseen needle could collect more samples than the other needles, contributing to giving a more precise pathological diagnosis and more information, including genomic profiling.

Identification of lenvatinib prognostic index via recursive partitioning analysis in advanced hepatocellular carcinoma

BACKGROUND

After the advent of new treatment options for advanced hepatocellular carcinoma (HCC), the identification of prognostic factors is crucial for the selection of the most appropriate therapy for each patient.

PATIENTS AND METHODS

With the aim to fill this gap, we applied recursive partitioning analysis (RPA) to a cohort of 404 patients treated with lenvatinib.

RESULTS

The application of RPA resulted in a classification based on five variables that originated a new prognostic score, the lenvatinib prognostic index (LEP) index, identifying three groups: low risk [patients with prognostic nutritional index (PNI) >43.3 and previous trans-arterial chemoembolization (TACE)]; medium risk [patients with PNI >43.3 but without previous TACE and patients with PNI <43.3, albumin-bilirubin (ALBI) grade 1 and Barcelona Clinic Liver Cancer stage B (BCLC-B)]; high risk [patients with PNI <43.3 and ALBI grade 2 and patients with PNI <43.3, albumin-bilirubin (ALBI) grade 1 and Barcelona Clinic Liver Cancer stage C (BCLC-C)]. Median overall survival was 29.8 months [95% confidence interval (CI) 22.8-29.8 months] in low risk patients (n = 128), 17.0 months (95% CI 15.0-24.0 months) in medium risk (n = 162) and 8.9 months (95% CI 8.0-10.7 months) in high risk (n = 114); low risk hazard ratio (HR) 1 (reference group), medium risk HR 1.95 (95% CI 1.38-2.74), high risk HR 4.84 (95% CI 3.16-7.43); P < 0.0001. The LEP index was validated in a cohort of 127 Italian patients treated with lenvatinib. While the same classification did not show a prognostic value in a cohort of 311 patients treated with sorafenib, we also show a possible predictive role in favor of lenvatinib in the low risk group.

CONCLUSIONS

LEP index is a promising, easy-to-use tool that may be used to stratify patients undergoing systemic treatment of advanced HCC.

Therapeutic efficacy of lenvatinib as third-line treatment after regorafenib for unresectable hepatocellular carcinoma progression

AIM

Multiple molecular agents have been developed for treating unresectable hepatocellular carcinoma. This study aimed to elucidate the clinical efficacy of sequential treatment with lenvatinib after regorafenib failure.

METHODS

From June 2017 to October 2020, 63 patients with Child-Pugh A and treated with regorafenib followed by sorafenib were enrolled (median age 71 years, 52 men, Barcelona Clinic Liver Cancer B:C = 23:40). They were divided into two groups, those treated with lenvatinib after regorafenib treatment (R-L group, n = 47) and those who did not receive lenvatinib after regorafenib (non-R-L group, n = 16). Prognostic factors were retrospectively analyzed after adjustment with inverse probability weighting.

RESULTS

Serum albumin level at the start of regorafenib and reasons for discontinuation of regorafenib were significantly different between the R-L and non-R-L groups, whereas the albumin-bilirubin score, Child-Pugh class, and tumor burden were not. Progression-free survival was also not significantly different (median 4.1 vs. 3.8 months, p = 0.586). As for overall survival, the R-L group showed better prognosis after introducing regorafenib and after introducing sorafenib, following inverse probability weighting adjustment (MST 19.7 vs. 10.3 months, 33.8 vs. 15.3 months, p < 0.001 and p = 0.022, respectively). Modified albumin-bilirubin grade 2b (score >-2.27) at the start of regorafenib (HR 2.074, p = 0.041) and the presence of lenvatinib treatment after regorafenib failure (HR 0.355, p = 0.004) were found to be significant prognostic factors in Cox proportional hazards multivariate analysis, after inverse probability weighting adjustment.

CONCLUSION

These results show that lenvatinib is a good sequential treatment option after progression under regorafenib therapy in unresectable hepatocellular carcinoma patients with better hepatic reserve function.

Impact of modified albumin-bilirubin grade on survival in patients with HCC who received lenvatinib

We investigated the impact on survival of modified albumin-bilirubin (mALBI) grade versus Child-Pugh classification in patients with hepatocellular carcinoma (HCC) who received lenvatinib. A total of 524 patients with HCC who received lenvatinib were included. Univariate analysis showed that mALBI grade 2b/3 and Child-Pugh class B/C were significantly associated with survival [hazard ratio (HR), 2.471; 95% confidence interval (CI), 1.944-3.141 and HR, 2.178; 95%CI, 1.591-2.982]. In patients with a Child-Pugh score of 5, multivariate analysis showed that mALBI grade 2b/3 was independently associated with survival (HR, 1.814; 95%CI, 1.083-3.037). Conversely, among patients with mALBI grade 1/2a, there was no difference in survival between those with a Child-Pugh class of 5 or 6 (p = 0.735). Time-dependent receiver operating characteristic analysis showed that the ALBI score predicted survival better than the Child-Pugh score. The optimal cut-off value of the ALBI score for predicting survival was nearly the same as the value separating mALBI grades 2a and 2b. In conclusion, the mALBI grade was a better predictor of survival than the Child-Pugh classification in patients with unresectable HCC who received lenvatinib therapy.

Clinical importance of muscle volume in lenvatinib treatment for hepatocellular carcinoma: Analysis adjusted with inverse probability weighting

BACKGROUND AND AIM

This study aimed to elucidate the clinical importance of muscle volume loss (pre-sarcopenia) in patients receiving lenvatinib as treatment for unresectable hepatocellular carcinoma (u-HCC).

METHODS

Of 437 u-HCC patients treated with lenvatinib at specific institutions in Japan between March 2018 and May 2020, 151 with available computed tomography imaging data from the time of lenvatinib introduction were enrolled. Pre-sarcopenia was diagnosed based on a previously reported cut-off value calculation formula [psoas muscle area at level of middle of third lumbar vertebra (cm2 )/height (m)2 ]. Clinical features and prognostic factors for overall survival (OS) with inverse probability weighting were investigated retrospectively for their relationship with pre-sarcopenia.

RESULTS

Cox hazard multivariate analysis showed alpha-fetoprotein (≥400 ng/mL) (hazard ratio [HR] 2.271, P < 0.001), Barcelona Clinic Liver Cancer stage (C and D) (HR 1.625, P = 0.018), and positive for pre-sarcopenia (HR 1.652, P = 0.042) to be significant prognostic factors. OS rates for the pre-sarcopenia group (n = 41) were worse than those for the non-pre-sarcopenia group (n = 110) (0.5-, 1-, and 1.5-year OS: 72.5%, 27.9%, and 7.0% vs 80.7%, 56.7%, and 46.1%, respectively; P < 0.001), as was progression-free survival (P = 0.025). Time to stopping lenvatinib or disease progression was better in the non-pre-sarcopenia group (0.5-, 1-, and 1.5-year OS: 48.0%, 24.5%, and 8.4% vs 20.0%, 10.3%, and 4.2%, respectively; P < 0.001). Also, the frequency of the adverse event appetite loss (any grade) was greater in the pre-sarcopenia group (43.9% vs 18.2%, P = 0.003).

CONCLUSION

Pre-sarcopenia was shown to be a significant prognostic factor in patients treated with lenvatinib for u-HCC.

Intrahepatic Bile Duct Injury as a Hepatic Immune-Related Adverse Event after Immune-Checkpoint Inhibitor Treatment

The increased use of immune-checkpoint inhibitors to treat various types of cancer has increased the incidence of immune-related adverse events (irAEs). Hepatic irAEs are frequent and can lead to serious conditions. Among the various types of hepatic irAEs reported to date, bile duct injury has been shown refractory to steroid treatment. This study describes 2 patients with hepatic irAEs manifesting as intrahepatic bile duct injury. Immunostaining with antibodies to both CD8 and cytokeratin-7 was useful for the diagnosis, and both patients were refractory to steroid treatment. Prompt diagnosis and active immunosuppressive therapies are required in such cases.

Successful Treatment with Crushed Sofosbuvir/Velpatasvir of a Patient with Decompensated Cirrhosis C and Thrombocytopenia

A 36-year-old woman with decompensated liver cirrhosis type C was referred to our hospital to receive antiviral treatment for hepatitis C virus (HCV). She had been diagnosed with intractable epilepsy and cerebral palsy at birth and was managed by central venous nutrition and nasal gastric feeding. At age 34 years, she was diagnosed with thrombocytopenia, probably associated with HCV infection. She showed refractory ascites for several months and was therefore administered crushed sofosbuvir/velpatasvir tablets via a nasal gastric tube. Her HCV infection was successfully eradicated, her ascites disappeared, and thrombocytopenia improved with a marked decrease in platelet-associated IgG.

Therapeutic efficacy of ramucirumab after lenvatinib for post-progression treatment of unresectable hepatocellular carcinoma

BACKGROUND

Lenvatinib is used for unresectable hepatocellular carcinoma (u-HCC) as first-line, as well as second- and third-line therapy in Japan. We evaluated the therapeutic efficacy of newly developed ramucirumab when given after lenvatinib for post-progression treatment.

METHODS

Of 385 patients with u-HCC and treated with lenvatinib at 16 different institutions in Japan between May 2018 and January 2020, 28 who received ramucirumab as the next treatment were enrolled and therapeutic responses were evaluated in a retrospective manner.

RESULTS

The median age of the 28 patients given ramucirumab was 70 years and the median albumin-bilirubin score was -2.19. Of the 28 patients, 23 were male, 21 were classified as Child-Pugh A and 7 as Child-Pugh B, and 25 were Barcelona Clinic Liver Cancer Stage C. Ramucirumab was given as second-line therapy in 14, third-line in 9, and fourth-line in 5. Therapeutic response was obtained in only 26 patients; the objective response rate was 3.8% (1/26) and the disease-control rate was 42.3% (11/26), with a median period to progression of 2.0 months. The reasons for discontinuation of ramucirumab were progression of disease in 16 and Grade 3 adverse events (gastrointestinal bleeding, ascites) in 2.

CONCLUSIONS

The anticipated therapeutic efficacy of ramucirumab for post-progression treatment following lenvatinib was not seen in our early experience.

What Can Be Done to Solve the Unmet Clinical Need of Hepatocellular Carcinoma Patients following Lenvatinib Failure?

BACKGROUND/AIM

An effective postprogression treatment of lenvatinib (LEN) against unresectable hepatocellular carcinoma (u-HCC) has not been established. We aimed to elucidate the clinical role of continuing LEN beyond progression of disease (PD).

METHODS

From March 2018 to October 2020, 99 u-HCC patients, in whom PD was confirmed (male:female = 78:21, median age 72 years, Child-Pugh A = 99, Barcelona Clinic Liver Cancer stage A:B:C = 2:43:54, LEN as first-line = 55), were enrolled (stopped LEN at PD [A group], n = 26; continued LEN beyond PD [B group], n = 73). Radiological response was evaluated with RECIST 1.1. Clinical features and prognostic factors for overall survival (OS) were retrospectively investigated using inverse probability weighting (IPW) calculated by propensity score.

RESULTS

Median time to progression, best response, and modified albumin-bilirubin grade (mALBI) at both baseline and PD did not show significant difference between the groups. Postprogression treatment in the A group was best supportive care in 17, sorafenib in 4, regorafenib in 3, ramucirumab in 1, and hepatic arterial infusion chemotherapy in 1. After adjusting with IPW, the B group showed better prognosis in regard to OS after PD and OS after introducing LEN than the A group (10.8/19.6 vs. 5.8/11.2 months, p < 0.001, respectively). In IPW-adjusted Cox hazard multivariate analysis, significant prognostic factors for OS after PD were mALBI 2b/3 at PD (HR 1.983, p = 0.021), decline of Eastern Cooperative Oncology Group performance status (ECOG PS) from baseline at PD (HR 3.180, p < 0.001), elevated alpha-fetoprotein (≥100 ng/mL) at introducing LEN (HR 2.511, p = 0.004), appearance of new extrahepatic metastasis (HR 2.396, p = 0.006), positive for hand-foot skin reaction (HFSR) before PD (any grade) (HR 0.292, p < 0.001), and continuing LEN beyond PD (HR 0.297, p < 0.001).

CONCLUSION

When ECOG PS and hepatic reserve function permit, continuing LEN treatment beyond PD, especially in u-HCC patients showed HFSR during LEN treatment, might be a good therapeutic option, at least until a more effective drug as a postprogression treatment after LEN failure is developed.

Platelet-lymphocyte ratio predicts survival in patients with hepatocellular carcinoma who receive lenvatinib: an inverse probability weighting analysis

OBJECTIVE

Lenvatinib, a newly developed molecularly targeted agent, has become available as a first-line therapy in patients with unresectable hepatocellular carcinoma (HCC). The platelet-to-lymphocyte ratio (PLR) has been associated with poor outcome in various malignancies, including HCC. In this study, we investigated the ability of PLR to predict outcomes in patients with unresectable HCC who received lenvatinib.

METHODS

Multivariate survival analysis was performed in 283 patients with unresectable HCC who received lenvatinib. In addition, the utility of PLR for predicting survival was clarified using an inverse probability weighting (IPW) analysis.

RESULTS

Cumulative overall survival at 100, 200, 300, 400, and 500 days was 95.2, 83.8, 68.3, 60.3, and 49.9%, respectively. Multivariate analysis with Cox proportional hazards modeling showed that PLR (≥150) [hazard ratio, 1.588; 95% confidence interval (CI), 1.039-2.428; P = 0.033], α-fetoprotein level, and Barcelona clinic liver cancer stage were independently associated with overall survival. Cumulative overall survival differed significantly between patients with low versus high PLR (P = 0.029). In addition, univariate analysis with Cox proportional hazards modeling adjusted by IPW showed that PLR (≥150) (hazard ratio, 1.396; 95% CI, 1.051-1.855; P = 0.021) was significantly associated with overall survival. Conversely, univariate analysis with Cox proportional hazards modeling adjusted only by IPW showed that PLR (≥150) (hazard ratio, 1.254; 95% CI, 1.016-1.549; P = 0.035) was significantly associated with progression-free survival. PLR values were not independently associated with therapeutic responses before or after IPW-adjusted logistic regression analysis.

CONCLUSIONS

PLR predicted overall survival in patients with unresectable HCC who received lenvatinib.

Analysis of efficacy of lenvatinib treatment in highly advanced hepatocellular carcinoma with tumor thrombus in the main trunk of the portal vein or tumor with more than 50% liver occupation: A multicenter analysis

AIMS

To assess the safety, efficacy, and prognostic impact of clinical factors associated with lenvatinib treatment in highly advanced hepatocellular carcinoma (HCC) with tumor thrombus in the main portal vein trunk (VP4) or tumor with more than 50% liver occupation (tm50%LO).

METHODS

A total of 61 highly advanced HCC patients (41 patients with tm50%LO and 20 patients with VP4) who were treated with lenvatinib at multicenter were enrolled and retrospectively analyzed for treatment outcomes according to their clinical status, including tumor morphology.

RESULTS

The most frequent grade ≥3 adverse event in tm50%LO HCC was elevated aspartate aminotransferase (17.1%). Objective response rates were 37.5% and 0% in tm50%LO HCC patients with Child-Pugh grade (CP)-A and CP-B, respectively, and 26.7% and 0% in VP4 HCC patients with CP-A and CP-B, respectively. Estimated median progression-free survival and overall survival were 132 days and 229 days, and 101 days and 201 days in patients with tm50%LO and VP4, respectively. In multivariate analysis, modified albumin-bilirubin grade (hazard ratio 0.372, 95% CI 0.157-0.887; p = 0.0241) and tumor morphology (hazard ratio 0.322, 95% CI 0.116-0.889; p = 0.0287) were independently associated with progression-free survival in patients with tm50%LO HCC. In VP4 HCC, median progression-free survival was worse in CP-B (57 days) than in CP-A patients (137 days, p = 0.0462).

CONCLUSIONS

Lenvatinib treatment offers a benefit in highly advanced HCC (tm50%LO or VP4) patients with good liver function or nodular-type tumor. The various characteristics identified in this study might be useful as indicators of lenvatinib treatment in highly advanced HCC with tm50%LO or VP4, which are considered very refractory cancers.

A case of pancreatic arteriovenous malformation caused acute pancreatitis

Arteriovenous malformation (AVM) in the pancreas rarely causes acute pancreatitis. However, even when it does cause pancreatitis, the pathogenesis is unclear. A 61-year-old man was admitted to our hospital for acute pancreatitis. The findings of computed abdominal tomography, magnetic resonance imaging, and endoscopic ultrasonography revealed pancreatic AVM and hematoma in the tail of the pancreas. These lesions were suspected to be associated with pancreatitis. Although endoscopic retrograde pancreatography could not confirm hemosuccus pancreaticus, distal pancreatectomy was performed because of repeated pancreatitis. The histopathological findings of the resected specimen revealed rupture of the AVM vessels into the main pancreatic ducts. Finally, we considered that intermittent bleeding due to AVM rupture and hematoma formation in the main pancreatic duct caused the repeated pancreatitis.