scholarly journals Late Relapse and Reinfection in HCV Patients Treated with Direct-Acting Antiviral (DAA) Drugs

Viruses ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1151
Author(s):  
Claudia Minosse ◽  
Cesare E. M. Gruber ◽  
Martina Rueca ◽  
Chiara Taibi ◽  
Mauro Zaccarelli ◽  
...  
Keyword(s):  
Virologic Response ◽  
Late Relapse ◽  
Hcv Rna ◽  
Z Score ◽  
Direct Acting Antiviral ◽  
Z Scores ◽  
Direct Acting ◽  
Next Generation Sequencing Ngs ◽  
Hcv Ns5b ◽  
Ngs Data

The risk of hepatitis C virus (HCV) recurrence after direct-acting antiviral (DAA) treatment is <0.5%. However, the distinction between HCV RNA late relapse and reinfection still represents a challenge in virological diagnostics. The aim of this study was to employ next-generation sequencing (NGS) to investigate HCV RNA recurrence in patients achieving a sustained virologic response (SVR) at least six months post-treatment. NGS was performed on plasma samples from six HCV-positive patients (Pt1–6) treated with DAA. NGS of HCV NS5B was analyzed before treatment (T0), after HCV RNA rebound (T1), and, for Pt3, after a second rebound (T2). Reinfection was confirmed for Pt5, and for the first rebound observed in Pt3. Conversely, viral relapse was observed when comparing T0 and T1 for Pt6 and T1 and T2 for Pt3. Z-scores were calculated and used to predict whether HCV-positive patient samples at different time points belonged to the same quasispecies population. A low Z-score of <2.58 confirmed that viral quasispecies detected at T0 and T1 were closely related for both Pt1 and Pt2, while the Z-score for Pt4 was suggestive of possible reinfection. NGS data analyses indicate that the Z-score may be a useful parameter for distinguishing late relapse from reinfection.

Hepatitis C “true” late relapse beyond 48 weeks of sustained virologic response after direct acting antiviral therapy

2017 ◽  
Vol 66 (4) ◽  
pp. 862-863 ◽  
Author(s):  
Thomas Klag ◽  
Julia Dietz ◽  
Christoph R. Werner ◽  
Julia M. Schwarz ◽  
Ulrich M. Lauer ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Antiviral Therapy ◽  
Sustained Virologic Response ◽  
Virologic Response ◽  
Late Relapse ◽  
Direct Acting Antiviral ◽  
Direct Acting

scholarly journals HCV Core Antigen as an alternative test to Quantitative HCV RNA for assessment of SVR in Chronic HCV infected patients treated with Direct Acting Antiviral agents

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
S M Mohamed ◽  
N I Musa ◽  
R S Ghait ◽  
B M Abdelrhiem
Keyword(s):  
Antiviral Agents ◽  
Virologic Response ◽  
Hcv Infection ◽  
Core Antigen ◽  
Hcv Rna ◽  
Viral Kinetics ◽  
Direct Acting Antiviral ◽  
Hcv Core Antigen ◽  
End Of Treatment ◽  
Direct Acting

Abstract Background and aims Widespread use of direct-acting antiviral (DAA) agents to treat patients with hepatitis C virus (HCV) infection has reduced the need for monitoring of HCV-RNA levels, because viral kinetics do not predict sustained virologic response (SVR) to these drugs. However, the performance of cheaper tests, such as the assay to quantify HCV core antigen (HCV Ag), has not been determined. This study was aimed at investigating the accuracy of the HCV Ag test in predicting which patients receiving DAAs will achieve SVR at week 12 (SVR12). Methods We performed a prospective study on 90 patients, chronically infected with HCV, receiving DAAs therapy from different NCCVH centers in Cairo during the period from August 2017 to June 2018. We collected blood samples and measured the levels of HCV core Ag and HCV-RNA at baseline and 12 weeks after end of treatment. We compared the ability of these assays to predict which patients would have SVR12. Results The median baseline level of HCV-RNA was 1688529.6 ± 994697.3 IU/ml (range, 312700 IU/ml to 3491100 IU/ml) and HCV Ag was 179.2 ± 83.5 pg/ml (range, 33.5 pg/ml to 315.6 pg/ml). HCV Ag became undetectable in 92.2% 12 weeks after the end of treatment. HCV-RNA became undetectable in 87.8% at the end of treatment (P&lt;.0001). 79 out of 90 patients (87.8%) achieved an SVR12; the test for HCV Ag identified 63.6% of these patients. Conclusions Tests that measure HCV Ag monitor efficacy of DAA therapy for HCV infection as well as assays that measure HCV-RNA, and hence could be recommended for clinical practice.

Detection of Occult Hepatitis C Virus Infection in Patients Who Achieved a Sustained Virologic Response to Direct-Acting Antiviral Agents

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Tarek Mohamed Yousef ◽  
Maha Mohsen Mohamed Kamal El Din ◽  
Tari Magdy Aziz George ◽  
Amr Adel Elzohary Mohamed
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Antiviral Agents ◽  
Virologic Response ◽  
Hcv Rna ◽  
Occult Hepatitis ◽  
Direct Acting Antiviral ◽  
Direct Acting ◽  
Occult Hepatitis C ◽  
Direct Acting Antiviral Agents

Abstract Background Occult infection with hepatitis C virus (HCV) is defined as the presence of the HCV genome in either liver tissue or peripheral blood monocytes, despite constant negative results from tests for HCV RNA in serum. Objectives The aim of the study to detect the prevalence of occult hepatitis C Virus infection in patients who achieved a sustained virologic response (SVR) to direct-acting antiviral agents and to outline predictors of OCI. Patients and Methods This study included 100 patients with chronic HCV infection without liver cirrhosis attending to hepatitis C clinics at Ain Shams University Hospital, Ahmed Maher Teaching hospital and Elgomhorya Teaching Hospital.who received sofosbuvir (400mg) plus daclatasvir (60mg) daily for 12 weeks with or without ribavirin according to National committee to combat viral hepatitis (NCCVH) protocol. Results We tested peripheral blood for HCV RNA in PBMCs to detect OCI. Occult HCV was found positive in 12% of the studied cases. Occult HCV was positive more in male cases. Positive cases had significantly lower age, and higher total bilirubin, direct bilirubin, AST and ALT levels. Age had significant moderate diagnostic performance in predicting occult HCV, while direct bilirubin has significant low diagnostic performance in predicting occult HCV. Conclusion OCI following direct antiviral therapy may be present in some cases, and this may require further testing of patients with SVR particularly in younger male patients with persistantly high liver enzymes.

scholarly journals Effect of Low Positive End of Treatment Viral Load with Direct-Acting Antiviral Therapy on Sustained Virologic Response

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Vabhave Pal ◽  
Nirupama Ancha ◽  
Jena Mann ◽  
Apurva A. Modi
Keyword(s):  
Viral Load ◽  
Sustained Virologic Response ◽  
Demographic Data ◽  
Retrospective Chart Review ◽  
Virologic Response ◽  
Hcv Rna ◽  
Direct Acting Antiviral ◽  
Genotype 1A ◽  
End Of Treatment ◽  
Direct Acting

Background. Direct-acting antivirals (DAAs) are highly effective treatments against hepatitis C virus (HCV), with sustained virologic response (SVR) rates of 93–100% against all genotypes. In most patients, viral load (VL) becomes undetectable four weeks into treatment, but rarely a low positive VL may be observed at the end of treatment (EOT). This study was conducted to determine the effect of low positive EOT VLs with DAA therapies on SVR at 12 and 24 weeks. Methods. A retrospective chart review was conducted from January 2014 to December 2018 on 1256 HCV patients of all genotypes (1–6) who had received DAA therapy at two large hepatology referral centers. Baseline demographic data, along with VL at week four, EOT, and SVR12/24 time points were collected for patients that had positive EOT VL. Treatment outcome for any patient with positive EOT VL was noted. Results. Eight out of 1256 patients treated with varying DAA therapies were observed to have low positive EOT VLs ranging from <15 to 235 IU/mL. One patient had a negative EOT VL, but 23 IU/mL at week four after EOT. All eight patients who had low positive EOT VLs and one patient who had a low positive VL at four weeks after EOT achieved SVR at weeks 12 and 24. One of the eight patients had cirrhosis. The majority of patients were genotype 1a. Conclusion. In the DAA treatment era, low levels of detectable HCV RNA at EOT does not predict treatment failure.

scholarly journals Liver enzyme normalization predicts success of Hepatitis C oral direct-acting antiviral treatment

2017 ◽  
Vol 40 (2) ◽  
pp. 73 ◽  
Author(s):  
Sarwat T Khan ◽  
Michaeline McGuinty ◽  
Daniel J Corsi ◽  
Curtis L Cooper
Keyword(s):  
Hepatitis C ◽  
Treatment Response ◽  
Liver Enzyme ◽  
Antiviral Treatment ◽  
Treatment Success ◽  
Antiviral Agent ◽  
Virologic Response ◽  
Hcv Rna ◽  
Direct Acting Antiviral ◽  
Direct Acting

Purpose: Monitoring of hepatitis C virus (HCV) treatment response is performed by serial HCV RNA measurements; however, this may not be useful for predicting treatment success or failure with oral direct-acting antiviral agent (DAA) therapies. Liver enzyme levels, which are elevated in chronic HCV and tend to decline on therapy, may serve as a more logistically and economically feasible alternative for monitoring treatment response. Source: The Ottawa Hospital Viral Hepatitis Clinic patients (n=219), receiving interferon-free oral DAA treatments, were assessed for liver enzymes and HCV RNA levels at baseline, week 4 and ≥12 weeks post-treatment. Suppression cut points used for this analysis were ALT ≤ 40U L-1 and AST ≤ 30U L-1. The primary outcome was week 12 sustained virologic response (SVR). By our analysis, all indicators had strong PPV (>90%) but limited NPV (

scholarly journals Micro-elimination of Chronic Hepatitis C by Universal Screening plus Direct Acting Antivirals for Incarcerated Persons in Taiwan

2020 ◽  
Author(s):  
Tsung-Hua Yang ◽  
Yu-Jen Fang ◽  
Shih-Jer Hsu ◽  
Ji-Yuh Lee ◽  
Min-Chin Chiu ◽  
...  
Keyword(s):  
Chronic Hepatitis ◽  
Hepatitis C ◽  
Chronic Hepatitis C ◽  
Universal Screening ◽  
Virologic Response ◽  
Hcv Rna ◽  
Direct Acting Antiviral ◽  
Hcv Antibody ◽  
Hcv Screening ◽  
Direct Acting

Abstract Background Incarcerated persons are a special population with higher hepatitis C virus (HCV) prevalence and should be prioritized for micro-elimination. This study aimed to investigate the seroprevalence and to evaluate the effectiveness and safety of direct acting antiviral (DAA) therapy in the custodial settings. Methods Incarcerated persons in Yunlin Prison were recruited to receive anti-HCV antibody screening. Patients with positive HCV ribonucleic acid (HCV RNA) were treated with glecaprevir/pibrentasvir (GLE/PIB) in our special chronic hepatitis C (CHC) clinic in prison. The primary endpoint was sustained virologic response at week 12 off therapy (SVR12). Results A total of 1402 incarcerated persons were invited to anti-HCV screening and 824 (58.7%) accepted. The prevalence of anti-HCV positivity was 33.5% (276/824) and the viremic rate (detectable HCV RNA) was 69.2% (191/276). According to FIB-4 index, patients with F3 stage were six (3.1%), but none met the criteria of F4 stage. However, six (3.1%) had liver cirrhosis with splenomegaly, confirmed by findings of ultrasonography. The median log10 HCV RNA level at baseline was 6.235 (2.394-7.403). Genotype (GT) 6 was predominant (39.3%), followed by GT 1a (22.0%) and 1b (14.1%). Mixed genotype HCV infection accounted for 3.6% of total infections. In total, 165 patients received GLE/PIB therapy. The overall SVR12 rates were 100%. Conclusions DAA therapy is highly effective and safe for incarcerated patients in Taiwan. Our special prison-based CHC clinic, linking universal screening to medical care, can serve as a model for micro-elimination of HCV in custodial settings.

New Epidemiologic Data Regarding Hepatitis C Virus Infection in Romania

2017 ◽  
Vol 26 (4) ◽  
pp. 381-386
Author(s):  
Mircea Manuc ◽  
Carmen M. Preda ◽  
Corneliu P. Popescu ◽  
Cristian Baicuș ◽  
Theodor Voiosu ◽  
...  
Keyword(s):  
Hepatitis C Virus ◽  
Hepatitis C ◽  
Drug Users ◽  
Antiviral Agent ◽  
Virologic Response ◽  
Advanced Fibrosis ◽  
Direct Acting Antiviral ◽  
Genotype 1B ◽  
Direct Acting ◽  
End Stage

Background & Aims: Literature data suggest that HCV genotype-1b is present in 93-99% of the Romanian patients infected with hepatitis C virus (HCV). We present the genotyping tests recently performed on patients with HCV and advanced fibrosis eligible for the Direct-Acting Antiviral (DAA) therapy, as well as the prevalence of these cases across Romania.Methods: The genotyping method was performed on 7,421 HCV patients with advanced fibrosis. The detection method was automatic real time PCR platform M2000 (Abbott). Every subject was introduced into a database including age, sex, county and address.Results: Genotype 1b was almost exclusively present: 7,392/7,421 (99.6%). Genotype 1b patients were 19.6% from Bucharest, 49% were males, with a median age of 60 years. Genotype non-1b was encountered in 29/7,421 subjects (0.4%), 62% were males, 69% from Bucharest and the median age was 52 years. Most of the subjects (75%) were in the 6th and 7th age decade. The prevalence of these cases varied significantly across Romanian counties: the highest was in Bucharest (61.3/105), Bihor (47/105), Iasi (46/105) and Constanța (43/105), and the lowest in Ilfov (2.8/105), Harghita (3.7/105), Covasna (5.4/105) and Maramureș (8.8/105) (p<0.001).Conclusions: Genotype 1b is encountered in 99.6% of patients with chronic hepatitis C and advanced fibrosis from Romania. The presence of genotypes non-1b is more common in Bucharest, in males and at a younger age. There are significant differences regarding the distribution of these cases across Romania: the highest rates are in Bucharest, Bihor, Iasi and Constanta.Abbreviations: BMI: body mass index; DAA: direct-acting antiviral agent; GT: genotype; HBV: hepatitis B virus; HCC: hepatocellular carcinoma; HCV: hepatitis C virus; IDU: intravenous drug users; MELD: model for end stage liver disease; NASH: non-alcoholic steatohepatitis; SVR; sustained virologic response.

Sign in / Sign up

Export Citation Format

Share Document