Effect of interferon-based and -free therapy on early occurrence and recurrence of hepatocellular carcinoma in chronic hepatitis C

De novo hepatocellular carcinoma occurrence in hepatitis C cirrhotics treated with direct-acting antiviral agents

Aim:

Recent studies raise concerns for higher incidence of hepatocellular carcinoma (HCC) after direct-acting antiviral therapy for hepatitis C virus (HCV).

Methods:

In this study, using analysis of liver imaging pre- and post-DAA treatment, we queried new occurrence or ‘de novo’ of HCC in patients with HCV-cirrhosis treated with DAAs. Of 150 patients who met study criteria, 7 (4.7%; 95% CI: 2.1–9.5%) patients developed de novo HCC which did not differ from historical rates of 3% (p = 0.22).

Results:

Notably, patients with decompensated cirrhosis had significantly higher rate of de novo HCC (9.3%; 95% CI: 3.12–22.2%; p = 0.04).

Conclusion:

Our data support the need for continued surveillance for HCC in HCV cirrhotics even after successful therapy.

Systematic review with meta-analysis: recurrence of hepatocellular carcinoma following direct-acting antiviral therapy

BACKGROUND

Although studies suggest decreased incident hepatocellular carcinoma (HCC) after direct-acting antivirals (DAA), data are conflicting regarding HCC recurrence and aggressiveness in patients who have a history of HCC with complete response.

AIM

Characterize HCC recurrence patterns after DAA therapy.

METHODS

Two reviewers searched MEDLINE and SCOPUS from January 2015 to December 2017 and identified studies evaluating HCC recurrence patterns following DAA therapy. A pooled estimate was calculated using the DerSimonian and Laird method for a random effects model. The study was conducted in accordance with PRISMA guidelines.

RESULTS

Among 24 studies (n = 1820 patients), the proportion of patients with HCC recurrence following DAA therapy ranged from 0% to 59% (pooled estimate 24.4%; 95% CI: 18.4%-30.4%). Among 11 full text manuscripts, pooled HCC recurrence was 21.9% (95% CI: 16.2%-28.3%). Factors associated with recurrence included history of prior HCC recurrence and a shorter interval between HCC complete response and DAA initiation. Nine studies comparing DAA-treated and interferon-treated or untreated patients found similar recurrence among DAA-treated patients. Most (77.8%) patients with HCC recurrence were detected at an early tumour stage, of whom 64.7% received curative treatment. Study limitations included heterogeneous cohorts, potential misclassification of HCC absence prior to DAA, ascertainment bias for recurrence, and short durations of follow-up.

CONCLUSIONS

Current data suggest acceptable HCC recurrence rates after DAA therapy, particularly if DAA therapy is delayed at least 6 months after HCC complete response. However, data characterising HCC recurrence after DAA therapy are of limited quality, highlighting the need for high quality prospective studies.

Direct-acting antivirals and hepatocellular carcinoma in chronic hepatitis C: A few lights and many shadows

With the introduction of direct-acting antiviral agents (DAA), the rate of sustained virological response (SVR) in the treatment of hepatitis C virus (HCV) has radically improved to over 95%. Robust scientific evidence supports a beneficial role of SVR after interferon therapy in the progression of cirrhosis, resulting in a decreased incidence of hepatocellular carcinoma (HCC). However, a debate on the impact of DAAs on the development of HCC is ongoing. This review aimed to analyse the scientific literature regarding the risk of HCC in terms of its recurrence and occurrence after the use of DAAs to eradicate HCV infection. Among 11 studies examining HCC occurrence, the de novo incidence rate ranged from 0 to 7.4% (maximum follow-up: 18 mo). Among 18 studies regarding HCC recurrence, the rate ranged from 0 to 54.4% (maximum “not well-defined” follow-up: 32 mo). This review highlights the major difficulties in interpreting data and reconciling the results of the included studies. These difficulties include heterogeneous cohorts, potential misclassifications of HCC prior to DAA therapy, the absence of an adequate control group, short follow-up times and different kinds of follow-up. Moreover, no clinical feature-based scoring system accounts for the molecular characteristics and pathobiology of the tumours. Nonetheless, this review does not suggest that there is a higher rate of de novo HCC occurrence or recurrence after DAA therapy in patients with previous HCV infection.

Rapidly growing hepatocellular carcinoma recurrence during direct-acting antiviral treatment for chronic hepatitis C

We herein report the case of a woman in her 80s with a recurrent hepatocellular carcinoma (HCC) tumor that rapidly increased in size during direct-acting antiviral (DAA) treatment. She suffered from HCC at her initial visit to our department and underwent hepatectomy. Thereafter, she underwent DAA treatment for chronic hepatitis C; however, her alpha-fetoprotein (AFP) level rapidly increased, and a liver tumor of > 1 cm in diameter was observed that had not been seen immediately before DAA treatment. She underwent hepatectomy again and moderate to poorly differentiated HCC was diagnosed. The patient's AFP level showed a rapid increase immediately after the start of DAA treatment; however, the increase ceased after the first month, and the influence from the surrounding environment of the tumor was considered to be temporary.

Direct-acting antiviral treatment for patients with hepatocellular carcinoma

PURPOSE OF REVIEW

Hepatocellular carcinoma (HCC) affects a significant portion of patients with hepatitis C. The use of direct-acting antiviral (DAA) agents has transformed the disease outcomes in this patient group.

RECENT FINDINGS

Hepatitis C virus (HCV) response to DAAs can be affected by the presence of HCC, whereas DAA therapy may affect the risk of HCC recurrence in patients with a history of HCC.

SUMMARY

Emerging data are demonstrating lower sustained virologic response (SVR) rates in patients with HCC compared with patients without HCC. Conflicting studies have also suggested that rates of HCC recurrence in patients with a history of HCC can potentially be increased or decreased on DAA therapy. This review will provide a brief overview of these data and inform practitioners on important considerations to make when prescribing DAA therapy for patients with HCV and HCC.

Serum Wisteria floribunda agglutinin-positive Mac-2-binding protein evaluates liver function and predicts prognosis in liver cirrhosis

OBJECTIVE

Wisteria floribunda agglutinin-positive Mac-2-binding protein (WFA⁺ -M2BP) is a novel glycobiomarker for evaluating liver fibrosis, but less is known about its role in liver cirrhosis (LC). This study aimed to investigate the utility of WFA⁺ -M2BP in evaluating liver function and predicting prognosis of cirrhotic patients.

METHODS

We retrospectively included 197 patients with LC between 2013 and 2016. Serum WFA⁺ -M2BP and various biochemical parameters were measured in all patients. With a median follow-up of 23 months, liver-related complications and deaths of 160 patients were recorded. The accuracy of WFA⁺ -M2BP in evaluating liver function, predicting decompensation and mortality were measured by the receiver operating characteristic (ROC) curve, logistic and Cox's regression analyses, respectively.

RESULTS

WFA⁺ -M2BP levels increased with elevated Child-Pugh classification, especially in patients with hepatitis B virus (HBV) infection. ROC analysis confirmed the high reliability of WFA⁺ -M2BP for the assessment of liver function using Child-Pugh classification. WFA⁺ -M2BP was also significantly positively correlated with the model for end-stage liver disease (MELD) score. Multivariate logistic regression analysis indicated WFA⁺ -M2BP as an independent predictor of clinical decompensation for compensated patients (odds ratio 11.958, 95% confidence interval [CI] 1.876-76.226, P = 0.009), and multivariate Cox's regression analysis verified WFA⁺ -M2BP as an independent risk factor for liver-related death in patients with HBV infection (hazards ratio 10.596, 95% CI 1.356-82.820, P = 0.024).

CONCLUSION

Serum WFA⁺ -M2BP is a reliable predictor of liver function and prognosis in LC and could be incorporated into clinical surveillance strategies for LC patients, especially those with HBV infection.

Impact of direct acting antivirals on occurrence and recurrence of hepatocellular carcinoma: Biologically plausible or an epiphenomenon?

Hepatocellular carcinoma (HCC) is a major cause of morbidity and mortality worldwide. Chronic hepatitis C virus infection (HCV) is the most common cause of HCC in many European countries, Japan and Pakistan. Introduction of the new direct acting antivirals (DAAs) has revolutionized the management of HCV worldwide, with high rates of sustained virologic response in patients who could not have tolerated the previous interferon based treatments. However, recently there have been reports raising caution about the long term effects of DAAs, particularly a possible increased risk of HCC. Therefore this review explores the current molecular studies as well as clinical data that investigate the impact of DAAs on occurrence and recurrence of HCC.

Amino acid substitutions in the hepatitis C virus core region predict hepatocarcinogenesis following eradication of HCV RNA by all-oral direct-acting antiviral regimens

Impact of substitution of aa70 in the core region (Core aa70) in HCV genotype 1b (HCV-1b) on hepatocarcinogenesis following eradication of HCV RNA by direct-acting antiviral therapy is not clear. In a retrospective study, 533 patients with HCV-related chronic liver disease, with sustained virological response defined as negative HCV RNA at 12 weeks after cessation of direct-acting antiviral therapy, were examined to evaluate the relationship between Core aa70 substitution and hepatocarcinogenesis. Twelve patients developed hepatocellular carcinoma during the follow-up period. The cumulative hepatocarcinogenesis rates were 1.7% and 2.4% at the end of 1 and 2 years, respectively. Overall, multivariate analysis identified HCV subgroup (HCV-1b with Gln70(His70); P = 0.003) and age (>65 years; P = 0.049), as pretreatment predictors of hepatocarcinogenesis. In HCV-1b patients, multivariate analysis identified post-treatment Wisteria floribunda agglutinin positive Mac-2 binding protein (>1.8 COI; P = 0.042) and HCV subgroup (HCV-1b with Gln70(His70); P = 0.071), as predictors of hepatocarcinogenesis, including post-treatment parameter. In conclusion, Core aa70 substitution in HCV-1b at the start of direct-acting antiviral therapy is an important predictor of hepatocarcinogenesis following eradication of HCV RNA. This study emphasizes the importance of detection of Core aa70 substitution before initiating antiviral therapy.

Liver stiffness measurement predicts hepatocellular carcinoma development in patients treated with direct-acting antivirals

BACKGROUND AND AIM

Predictive factors for hepatocarcinogenesis following eradication of hepatitis C virus by direct-acting antivirals (DAAs) are unknown. The aim of the study was to investigate the relationships between liver stiffness (LS) using acoustic radiation force impulse (ARFI) erastograghy and the development of hepatocellular carcinoma (HCC) in patients who achieved sustained virological response (SVR) treated with DAA.

METHODS

In this prospective study, we enrolled 263 hepatitis C patients with SVR who underwent ARFI before DAA treatment. Thirty patients had previous HCC.

RESULTS

The median LS value according to ARFI measurements was 1.34 m/s (range: 0.67-4.35). During the follow-up period (median: 18.1 months), development of HCC occurred in 19 patients (7.2%; HCC occurrence in 7 patients and HCC recurrence in 12 patients). By multivariate Cox regression analysis, HCC history (hazard ratio [HR]: 10.634; 95% confidence interval [CI]: 4.13-27.37; P = 0.001), older age (HR: 4.638; 95% CI: 1.63-13.61; P = 0.004) and higher total bilirubin levels (HR: 4.189; 95% CI: 1.66-10.60; P = 0.002) were independent predictors for the development of HCC, and higher LS value (≥1.73 m/s) at baseline was an independent predictor for HCC occurrence (HR: 8.350; 95% CI: 1.62-43.09; P = 0.011). The cumulative recurrence of HCC was statistically similar according to the degree of LS in patients who were previously treated for HCC.

CONCLUSION

The LS value at baseline is useful for predicting HCC occurrence. Thus, even if SVR is achieved, patients with higher LS at baseline must be followed carefully for HCC occurrence.