Publications by authors named "Yoshiiku Kawakami"

Regorafenib became second-line treatment for the patients with sorafenib refractory. In our study, two patients could not continue regorafenib for its adverse effects. It was suggested that appropriate use criteria of regorafenib should be observed and manage adverse effects earlier.

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Background And Aim: To examine the effect on recurrence and survival of treatment by interferon (IFN)-free direct-acting antivirals (DAA) for patients with hepatitis C virus (HCV)-associated hepatocellular carcinoma (HCC) who underwent primary curative treatment.

Methods: This was a retrospective cohort study of 250 patients with HCV who had received curative treatment for primary HCC. As anti-HCV treatment after HCC treatment, 38 patients received IFN-free DAA therapy (DAA patients) and 94 received IFN-based therapy (IFN patients).

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The events in the immune response to hepatitis B virus (HBV) remain unclear. We analyzed the direct influence of HBV on gene expression in human hepatocytes under immunodeficient conditions using a human hepatocyte chimeric mouse model. HBV-infected or non-infected chimeric mouse livers were collected, and gene expression profiles were compared.

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Aim: The aim of this study is to compare the efficacy and safety of hepatic arterial infusion chemotherapy (HAIC) between 5-fluorouracil (5-FU)-based continuous infusion chemotherapy and low-dose cisplatin (CDDP) monotherapy in patients with advanced hepatocellular carcinoma (HCC).

Methods: Patients were grouped according to HAIC regimen (5-FU group, n = 317/CDDP group, n = 66). A two-to-one match was created using propensity score analysis (5-FU group, n = 102/CDDP group, n = 51).

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Background/purpose: In Japan, there is a growing population of patients with chronic hepatitis C virus (HCV) infection who failed a direct-acting antiviral (DAA)-based regimen. In this Phase 3 study, we evaluated sofosbuvir-velpatasvir plus ribavirin in Japanese patients with genotype 1 or 2 HCV infection who previously received DAAs.

Methods: Patients were randomized 1:1 to receive sofosbuvir-velpatasvir plus ribavirin for 12 or 24 weeks.

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Background: Sustained virological response (SVR) rates for the treatment of chronic hepatitis C virus (HCV)-infected patients have drastically improved with the use of direct-acting antiviral (DAA) therapies; however, a small minority of patients still fails to eradicate the virus. We analyzed factors associated with SVR in DAA therapy and the effect of age and liver fibrosis on treatment response.

Methods: Nine hundred and eighteen patients with chronic HCV infection were treated with 24 weeks of daclatasvir plus asunaprevir (DCV + ASV) or 12 weeks of sofosbuvir plus ledipasvir (SOF + LDV), ombitasvir, paritaprevir plus ritonavir (OMB + PTV + r) or sofosbuvir plus ribavirin (SOF + RBV).

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The activation of hepatitis B virus (HBV)-related hepatitis is associated with both natural killer (NK) cells and cytotoxic T lymphocytes (CTLs). We analyzed the association between the immune response and changes in the proportion of Pre-S deletion variants. We quantified Pre-S deleted HBV (HBV-del) and wild-type HBV (HBV-wt) DNA levels in sera obtained from HBV-infected mice and chronic hepatitis B patients.

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Background: In patients with advanced hepatocellular carcinoma (HCC), evidence is unclear as to whether hepatic arterial infusion chemotherapy (HAIC) or sorafenib is superior. We performed a prospective, open-label, non-comparative phase II study to assess survival with HAIC or HAIC converted to sorafenib.

Methods: Fifty-five patients were prospectively enrolled.

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Integration of Hepatitis B virus (HBV) into the human genome can cause genetic instability, leading to selective advantages for HBV-induced liver cancer. Despite the large number of studies for HBV integration into liver cancer, little is known about the mechanism of initial HBV integration events owing to the limitations of materials and detection methods. We conducted an HBV sequence capture, followed by ultra-deep sequencing, to screen for HBV integrations in 111 liver samples from human-hepatocyte chimeric mice with HBV infection and human clinical samples containing 42 paired samples from non-tumorous and tumorous liver tissues.

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Background: Although pegylated interferon (PEG-IFN) and nucleotide/nucleoside analogue (NA) combination therapy is considered to be optimal for accelerating serum hepatitis B surface antigen (HBsAg) reduction, the effect is limited, and the best approach to PEG-IFN treatment for chronic hepatitis B patients during long-term NA therapy has yet to be determined.

Methods: A total of 21 hepatitis B e antigen-negative chronic hepatitis B patients whose HBV DNA levels were suppressed to undetectable levels by NA therapy were administrated PEG-IFN-α2a for 48 weeks (sequential therapy: 10, add-on therapy: 11). Factors associated with HBsAg reduction by PEG-IFN therapy were analysed.

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Aim: As second-line therapy, regorafenib has been shown to provide a survival benefit for patients with hepatocellular carcinoma (HCC) who progress on sorafenib. In this retrospective study, we assessed the clinical outcomes of sorafenib treatment failure with regard to second-line chemotherapy.

Methods: Patients (n = 160) with advanced HCC, Child-Pugh A liver function and Eastern Cooperative Oncology Group performance status (ECOG PS) 0-1 treated with sorafenib between June 2009 and September 2016 were enrolled.

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Background And Aim: Sorafenib is the standard treatment for patients with advanced hepatocellular carcinoma (HCC) with distant metastasis, unresectable HCC, and HCC refractory to transcatheter arterial chemoembolization (TACE) or with macroscopic vascular invasion (MVI). Also, hepatic arterial infusion chemotherapy (HAIC) has been used for advanced HCC in Southeast and East Asian countries. However, clearer information is needed for choosing appropriately between these therapies.

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Cisplatin reacts with DNA and thereby likely generates a characteristic pattern of somatic mutations, called a mutational signature. Despite widespread use of cisplatin in cancer treatment and its role in contributing to secondary malignancies, its mutational signature has not been delineated. We hypothesize that cisplatin's mutational signature can serve as a biomarker to identify cisplatin mutagenesis in suspected secondary malignancies.

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Background And Aims: The feature of blood glucose dynamics in patients with chronic liver disease (CLD) is marked blood glucose fluctuations. However, the detail of blood glucose dynamics is not well known. The aim of the present study was to evaluate glycemic fluctuations by continuous glucose monitoring (CGM).

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Objective: To compare the outcome of hepatic arterial infusion chemotherapy combined with radiotherapy (HAIC + RT) versus sorafenib monotherapy in patients with advanced hepatocellular carcinoma (HCC) and major portal vein tumor thrombosis (PVTT).

Methods: This retrospective study included 108 HCC patients with PVTT of the main trunk or first branch and Child-Pugh ≤7. Sixty-eight received HAIC + RT and 40 received sorafenib.

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Background & Aims: Biliary tract cancers (BTCs) are clinically and pathologically heterogeneous and respond poorly to treatment. Genomic profiling can offer a clearer understanding of their carcinogenesis, classification and treatment strategy. We performed large-scale genome sequencing analyses on BTCs to investigate their somatic and germline driver events and characterize their genomic landscape.

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Background & Aims: High cure rates are achieved in HCV genotype-1b patients treated with daclatasvir and asunaprevir, DCV/ASV. Here we analyzed early HCV kinetics in genotype-1b infected Japanese subjects treated with DCV/ASV and retrospectively projected, using mathematical modeling, whether shorter treatment durations might be effective.

Methods: HCV RNA levels were measured frequently during DCV/ASV therapy in 95 consecutively treated patients at a single center in Japan.

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Aim: The aim of this study was to determine the risk factors for worsening of gastroesophageal varices (GEVs) and development of portosystemic encephalopathy in patients with hepatitis B virus (HBV)-related cirrhosis during nucleos(t)ide analog (NA) treatment.

Methods: One hundred and thirty-seven patients with HBV-related cirrhosis were enrolled in this retrospective cohort study. Findings of portal hemodynamics with computed tomography, liver function, and endoscopic examinations during NA treatment were assessed.

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Background: The once-daily, all oral, RBV-free, pangenotypic direct-acting anti-viral regimen consisting of co-formulated NS3/4A protease inhibitor glecaprevir and NS5A inhibitor pibrentasvir (G/P), demonstrated high rates of sustained virologic response (SVR) in phase 2 and 3 studies outside Japan.

Methods: CERTAIN-1 is a phase 3, open-label, multicenter study assessing the safety and efficacy of G/P (300/120 mg) once daily in Japanese patients with chronic HCV GT1 infection. Patients without cirrhosis received 8 weeks of G/P or 12 weeks of ombitasvir/paritaprevir/ritonavir (OBV/PTV/r, 25/150/100 mg); patients with cirrhosis received G/P for 12 weeks.

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Background: Although nucleoside/nucleotide analogue therapy is thought to suppress chronic hepatitis B (CHB) via regulation of inflammatory cytokines/chemokines, the mechanism is still unclear. In this study, serum cytokine/chemokine levels were measured in CHB patients treated with entecavir, and the association with antiviral response was analysed.

Methods: A total of 78 Japanese patients with CHB were enrolled, and serum cytokine/chemokine levels were measured at baseline and at 12, 24 and 48 weeks of entecavir treatment using the MULTIPLEX kit.

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Background: In Japan, daclatasvir (DCV) and asunaprevir (ASV) therapy was the first IFN-free treatment to be approved, and thousands of patients have since been successfully treated, with an SVR rate of around 90%. The converse, however, is that around 10% of patients fail to achieve viral eradication and must be retreated using a different approach. This study is to evaluate treatment efficacy of ledipasvir/sofosbuvir and ribavirin in patients who failed to respond to DCV and ASV therapy.

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The risk of hepatocellular carcinoma (HCC) development is reduced following viral elimination by interferon therapy in chronic hepatitis C patients. However, the risk in patients treated with interferon-free direct-acting antivirals (DAAs) is unknown. We evaluated chronic hepatitis C patients who achieved viral eradication by pegylated-interferon plus ribavirin (PEG-IFN/RBV, n = 244) or daclatasvir plus asunaprevir (DCV/ASV, n = 154) therapy.

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Background And Aims: The risk factors in the progression of nonalcoholic fatty liver disease (NAFLD) have not been fully clarified. Porphyromonas gingivalis (P.g) has been considered to be a confounding risk factor for systemic diseases.

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