A randomized-controlled trial of SOF/VEL/VOX with or without ribavirin for retreatment of chronic hepatitis C

A Government-Led, Patient-Centric Strategy to Re-Engage Diagnosed but Untreated Hepatitis C Patients in Yunnan Province, China

Diagnosed but untreated (DBU) hepatitis C virus (HCV) infected patients are a key group for HCV elimination efforts. This study aims to pilot a government-led, multi-sectoral approach to universal patient recall and treatment mobilisation in Yunnan Province, China, to determine if this approach can improve treatment uptake among DBU patients and contribute to HCV elimination. In this quasi-experimental before-and-after study, we analysed all hepatitis C cases reported from 2004 to 2021 in the Yuxi City Center for Disease Control (CDC) database. From July to December 2022, the traditional telephone recall model was used, and from July 2023 to January 2024, Yuxi CDC partnered with local stakeholders to implement a patient-centric strategy to re-engage DBU patients in care. We compared the outcomes between these two approaches. The cooperation model significantly improved HCV case management. The contact rate rose from 29.7% (645/2171) to 58.5% (3813/6520) (χ2 = 25.743, p < 0.001); the HCV-RNA testing rate increased from 18.9% (122/645) to 86.1% (3283/3813) (χ2 = 2760.164, p < 0.001); and treatment initiation for positive cases improved from 19.6% (9/46) to 57.8% (884/1530) (χ2 = 26.555, p < 0.001). In total, 936 patients received treatment, and 92 patients (9.8%) were lost to follow-up 12 weeks post-treatment. Of the remaining 844 patients, 841 (99.6%) achieved SVR12 (sustained virological response12 weeks after therapy, defined as HCV quantitative test below 15 IU/mL), with no significant difference in outcomes between tested and untested genotype groups (χ2 = 0.123, p = 0.725). This study highlights the substantial advantages of the cooperative model over the traditional approach, notably in contact, testing, and treatment rates, and successful SVR12 outcomes, underscoring the potential for such models in advancing HCV elimination.

Efficacy and Safety of Adding Ribavirin to Sofosbuvir-Based Direct-Acting Antivirals (DAAs) in Re-Treating Non-Genotype 1 Hepatitis C-A Systematic Review and Meta-Analysis

BACKGROUND

There is still debate whether ribavirin should be added to direct-acting antivirals (DAAs) for the management of treatment-experienced individuals with non-genotype-1 hepatitis C. This study compared the efficacy and safety of adding ribavirin to sofosbuvir-based combinations compared to sofosbuvir-based regimens alone in treating non-genotype 1 hepatitis C virus (HCV) in individuals who have been previously treated.

METHODS

We searched Cochrane CENTRAL, PubMed, SCOPUS, CINAHL and preprint databases from inception to September 2023 for randomized controlled trials (RCTs) that compared sofosbuvir-based regimens with ribavirin to sofosbuvir-based regimens alone in previously treated individuals with non-genotype 1 HCV infection. Data extraction and quality of study assessments were performed by two independent authors, and synthesis was performed using bias-adjusted models, heterogeneity using I2, and publication bias using funnel plots.

RESULTS

Eight RCTs compared sofosbuvir-based combinations with and without ribavirin were included. Overall, the addition of ribavirin to sofosbuvir, compared to sofosbuvir alone, did not show a benefit in achieving sustained virological response (SVR) (OR 0.91, 95% CI 0.26-3.17, I2 = 70.0%) with moderate certainty in Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) evidence. In subgroup analysis, there was no benefit of adding ribavirin to sofosbuvir in individuals with non-genotype 1 HCV. The additional ribavirin was associated with increased adverse events (OR 2.03, 95% CI 1.58-2.6, I2 = 8.0%) and treatment discontinuation (OR 1.81, 95% CI 0.78-4.28, I2 = 0.0%).

CONCLUSIONS

The moderate certainty evidence suggests that adding ribavirin to sofosbuvir-based regimens may not confer benefit in achieving SVR in previously treated individuals with non-genotype 1 HCV but increases the odds of adverse events and treatment discontinuation. More evidence is needed on the effect of additional ribavirin in achieving SVR in individuals with decompensated cirrhosis.

REGISTRATION

The protocol is registered on the International Prospective Register of Systematic Reviews (PROSPERO) (CRD42022368868).

Real-life effectiveness of sofosbuvir/velpatasvir/voxilaprevir in hepatitis C patients previously treated with sofosbuvir/velpatasvir or glecaprevir/pibrentasvir

BACKGROUND

Sofosbuvir, velpatasvir and voxilaprevir (SOF/VEL/VOX) is the recommended rescue therapy for patients with chronic hepatitis C infection who fail direct-acting antivirals (DAAs). Data are limited on the effectiveness of this treatment after the current first-line therapies. Our aim was to analyse the effectiveness and safety of SOF/VEL/VOX among patients failing sofosbuvir/velpatasvir (SOF/VEL) or glecaprevir/pibrentasvir (GLE/PIB).

METHODS

Retrospective multicentre study (26 Spanish hospitals), including chronic hepatitis C patients unsuccessfully treated with SOF/VEL or GLE/PIB, and retreated with SOF/VEL/VOX ± ribavirin for 12 weeks between December 2017 and December 2022.

RESULTS

In total, 142 patients included: 100 (70.4%) had failed SOF/VEL and 42 (29.6%) GLE/PIB. Patients were mainly men (84.5%), White (93.9%), with hepatitis C virus genotype (GT) 3 (49.6%) and 47.2% had liver cirrhosis. Sustained virological response (SVR) was evaluated in 132 patients who completed SOF/VEL/VOX and were followed 12 weeks after end of treatment; 117 (88.6%) achieved SVR. There were no significant differences in SVR rates according to initial DAA treatment (SOF/VEL 87.9% vs. GLE/PIB 90.2%, p = 0.8), cirrhosis (no cirrhosis 90% vs. cirrhosis 87.1%, p = 0.6) or GT3 infection (non-GT3 91.9% vs. GT3 85.5%, p = 0.3). However, when considering the concurrent presence of SOF/VEL treatment, cirrhosis and GT3 infection, SVR rates dropped to 82.8%. Ribavirin was added in 8 (6%) patients, all achieved SVR.

CONCLUSION

SOF/VEL/VOX is an effective rescue therapy for failures to SOF/VEL or GLE/PIB, with an SVR of 88.6%. Factors previously linked to lower SVR rates, such as GT3 infection, cirrhosis and first-line therapy with SOF/VEL were not associated with lower SVRs.

Revolutionizing hepatitis C treatment: next-gen direct-acting antivirals

INTRODUCTION

With the introduction of highly effective and safe therapies with next-generation direct-acting antivirals (DAAs), that act without interferon, hepatitis C virus (HCV) infection remains the only treatable chronic infectious disease.

AREAS COVERED

The review aims to provide an overview of the therapy revolution with a description of specific DAAs, their mechanisms of action, a summary of the safety and efficacy of specific regimens, and a discussion of populations requiring special therapeutic approaches.

EXPERT OPINION

DAAs are highly effective, safe, and easy to use. However, challenges such as access to health services and loss of patients from the cascade of care, especially in groups disproportionately affected by HCV infection, such as substance abusers, make it difficult to achieve the WHO's goal of HCV elimination. The proposed strategy to combat these difficulties involves a one-step approach to diagnosing and treating the infection, the availability of long-lasting forms of medication, and the development of an effective vaccine. The aforementioned opportunities are all the more important as the world is facing an opioid epidemic that is translating into an increase in HCV prevalence. This phenomenon is of greatest concern in women of childbearing age and in those already pregnant due to treatment limitations.

Sofosbuvir/Velpatasvir/Voxilaprevir for Hepatitis C Virus Retreatment in Difficult-to-treat Patients: A Real-life Observational Study from India

Background and aim

Hepatitis C virus (HCV) treatment fails to achieve sustained virological response at 12 weeks (SVR12) in 5-10 % and requires retreatment with second-line drugs. We report our experience of sofosbuvir/velpatasvir/voxilaprevir use for HCV retreatment in a small cohort of difficult-to-treat Indian patients.

Methods

We reviewed our HCV databases to identify the patients who had failed to achieve SVR12 after treatment with sofosbuvir in combination with either daclatasvir, ledipasvir, or velpatasvir with/without ribavirin on one or more occasions. Participants were excluded if they had (i) decompensated cirrhosis, (ii) HIV coinfection or (iii) chronic kidney disease, or (iv) prior organ transplantation. All the participants were treated with sofosbuvir/velpatasvir/voxilaprevir plus ribavirin for 12 weeks. Treatment outcome was categorized as successful or failure if HCV RNA was undetectable or detectable at SVR12, respectively.

Results

Fifteen patients (male 67 %; genotype-3 80 %) were included in the analysis. Ten (67 %) had cirrhosis. Five, eight, and two participants had previously failed one, two, and three courses of pegylated-interferon free, sofosbuvir containing direct acting antiviral (DAA) regimens respectively. Fourteen participants had failed to at least one course of the sofosbuvir/velpatasvir combination. Fourteen patients achieved SVR12, and one patient was lost to follow-up. Treatment was successful in 100 % and 93.3 % of per-protocol (PP) and intention to treat (ITT) analyses, respectively.

Conclusion

Sofosbuvir/velpatasvir/voxilaprevir combination is an effective second-line therapy in India for difficult-to-treat HCV patients.

SASLT guidelines: Update in treatment of hepatitis C virus infection, 2024

ABSTRACT

Hepatitis C virus (HCV) infection has been a major global health concern, with a significant impact on public health. In recent years, there have been remarkable advancements in our understanding of HCV and the development of novel therapeutic agents. The Saudi Society for the Study of Liver Disease and Transplantation formed a working group to develop HCV practice guidelines in Saudi Arabia. The methodology used to create these guidelines involved a comprehensive review of available evidence, local data, and major international practice guidelines regarding HCV management. This updated guideline encompasses critical aspects of HCV care, including screening and diagnosis, assessing the severity of liver disease, and treatment strategies. The aim of this updated guideline is to assist healthcare providers in the management of HCV in Saudi Arabia. It summarizes the latest local studies on HCV epidemiology, significant changes in virus prevalence, and the importance of universal screening, particularly among high-risk populations. Moreover, it discusses the promising potential for HCV elimination as a public health threat by 2030, driven by effective treatment and comprehensive prevention strategies. This guideline also highlights evolving recommendations for advancing disease management, including the treatment of HCV patients with decompensated cirrhosis, treatment of those who have previously failed treatment with the newer medications, management in the context of liver transplantation and hepatocellular carcinoma, and treatment for special populations.

Treatment Outcomes of Sofosbuvir/Velpatasvir/Voxilaprevir in Direct-Acting Antiviral-Experienced Hepatitis C Virus Patients: A Systematic Review and Meta-Analysis

About 5% of chronic hepatitis C (CHC) patients experienced treatment failure with direct-acting antiviral (DAA) treatment. The global data on the practice and treatment outcomes of Sofosbuvir/Velpatasvir/Voxilaprevir (SOF/VEL/VOX) in DAA-experienced CHC patients remains sparse. We performed a systematic review and meta-analysis to evaluate the efficacy and safety of SOF/VEL/VOX as a salvage treatment in DAA-experienced CHC patients. We searched five electronic databases from inception to 31 January 2023. The study outcomes were SVR12 and treatment-related adverse effects, with subgroup analysis performed based on genotype, cirrhosis, HCC, prior SOF/VEL exposure, and region. We identified and analyzed data from 24 studies (2877 DAA-experienced CHC patients); 17.2% had prior SOF/VEL exposure, 25% received ribavirin with SOF/VEL/VOX, and 42% had pre-treatment resistance-associated substitution (RAS) testing performed. Eastern Mediterranean had a higher pooled SVR12 than the America and Europe regions (p < 0.05). Predictors of SOF/VEL/VOX failure were genotype 3, active HCC, baseline cirrhosis, and prior SOF/VEL. Baseline RAS mutation and ribavirin supplementation were not associated with higher SVR12. Treatment discontinuation because of drug-related adverse events was uncommon (10 studies, 0.2%). In summary, SOF/VEL/VOX is efficacious and safe for retreatment in DAA-experienced CHC patients, even with RAS mutation. Our findings support SOF/VEL/VOX as a first-line rescue treatment for DAA-experienced CHC patients.