Assessment of facility performance during mass treatment of chronic hepatitis C in Egypt: Enablers and obstacles

Prediction of hepatic decompensation and hepatocellular carcinoma after direct-acting antiviral therapy in patients with hepatitis C-related liver cirrhosis: a cohort study

Aim

This study aimed to evaluate the rate of hepatic decompensation and de novo HCC and identify their independent factors in HCV genotype 4-infected patients with compensated liver cirrhosis following successful direct-acting antiviral (DAA) therapy.

Methods

This prospective cohort study included 1789 patients with HCV genotype 4-related compensated liver cirrhosis who achieved viral eradication after DAAs. Baseline and follow-up clinical, laboratory, albumin-bilirubin score (ALBI), and abdominal ultrasound were recorded to detect hepatic decompensation and de novo HCC. Logistic regression was performed to evaluate the variables associated with decompensation and HCC.

Results

During the 24-month period of follow-up, 184 (10.28%) patients developed hepatic decompensation. Ascites was the commonest presentation. Baseline serum albumin, bilirubin, and platelet count were the independent factors associated with hepatic decompensation (P-values 0.022, 0.03, and < 0.001, respectively). A formula was developed for the prediction of decompensation using these 3 factors (AUC: 0.641 at cutoff 0.1098969 with a sensitivity of 59.9% and specificity of 61.7%). Pre-treatment ALBI score could predict decompensation at cutoff value − 2.5184, AUC 0.609, sensitivity 58.3%, and specificity 59.7%. Post-treatment ALBI score could predict hepatic decompensation after DAA therapy at cutoff value − 2.9521, AUC 0.597, sensitivity 48.1%, and specificity 75.5%. Sixteen (0.9%) patients developed de novo HCC. Age (odds ratio: 1.061, 95%, confidence interval: 1–1.126) and male gender (OR 3.450, 95% CI 1.105–10.769) were the independent factors associated with the development of de novo HCC but not the ALBI score.

Conclusion

Baseline demographic and laboratory data could predict hepatic decompensation and HCC in patients with compensated liver cirrhosis after successful DAA therapy

The impact of polymorphism in PNPLA3 and TM6SF2 genes on the susceptibility and survival of hepatitis C-related hepatocellular carcinoma

Background

Genetic variants of Patatin-like phospholipase domain-containing protein 3 (PNPLA3) and transmembrane 6 superfamily member 2 (TM6SF2) genes have been reported with the development of hepatocellular carcinoma (HCC). This study aims to explore the role of The PNPLA3 rs738409 and TM6SF2 rs58542926 single-nucleotide polymorphisms (SNPs) on the incidence and survival of HCV-induced HCC in Egyptians.

Methods and results

This case-control study included (120) HCC and (144) hepatitis C virus (HCV) patients. Baseline clinical, laboratory, tumor characteristics data, HCC recurrence, and overall survival were collected. PNPLA3 rs738409 and TM6SF2 rs58542926 polymorphism were detected by TaqMan allelic discrimination assay. We found that HCC patients were significantly older with male predominance. A significant difference between the TT genotypes of TM6SF2 frequency was observed in HCC compared with HCV patients. Moreover, the T allele of TM6SF2 distributions revealed a significant contribution to the different stages of HCC (p=0.03). Both PNPLA3 rs738409 and TM6SF2 rs58542926 variants showed a significant relation with treatment response according to the modified RECIST criteria. Age and diabetes mellitus were the independent factors associated with the development of HCC by multivariate regression analysis.

Conclusions

TM6SF2 rs58542926 polymorphism, not PNPLA3 rs738409, could be implicated in the development of HCV-induced HCC and its progression.

Three regimens for re-treatment failure of Sofosbuvir-based therapy for chronic hepatitis-C genotype-4: a cohort study

Despite the high sustained virologic response (SVR) rates of direct-acting antiviral (DAAs) therapy, a small number of patients does not eradicate the virus, and these patients represent a challenge. This study aims to compare the outcomes of three second-line regimens for DAAs-experienced patients with chronic hepatitis C (CHC). This prospective observational study was conducted at the Damanhur Viral Hepatitis Center from January 2017 to February 2020. We included patients with CHC who did not achieve SVR after the complete course of Sofosbuvir/Daclatasvir±Ribavirin (SOF/DAC±RBV). The primary endpoint was SVR-12 after re-treatment. This study included 360 patients (with a mean age of 51.53±11.38 years). Approximately 51.1% of the patients were males, and 65.5% had liver cirrhosis. All patients of group 1 (45 patients) received SOF/VEL/VOX over 12-weeks; SVR-12 was achieved in 44 patients (97.8%). Group 2 (28 patients) received SOF/DAC/RBV over 24-weeks; (one patient was lost during follow-ups and one patient discontinued treatment due to hepatic decompensation). SVR-12 was achieved in 25 patients (96.2%). Group 3 (287 patients) received SOF/Ombitasvir/Paritaprevir/Ritonavir/RBV) over 12-weeks. Eight patients were lost during follow-ups, and one patient discontinued treatment due to grade 4 adverse events. SVR-12 was achieved in 276 patients (99.3%). There was no difference between the groups regarding their age, gender distribution, baseline viral load or comorbidities. Adverse events (thrombocytopenia, anemia, hyperbilirubinaemia and prolonged INR) were significantly higher in group 3, while group 1 did not experience any. The three studied retreatment regimens can be used for DAAs treatment-experienced patients considering availability. The SOF/VEL/VOX combination had the least adverse events.

P53 is a risk factor of de-novo hepatitis C-related hepatocellular carcinoma treated with direct-acting antivirals: a case-control study

BACKGROUND

The mechanisms underlying de-novo hepatocellular carcinoma (HCC) after direct-acting antivirals (DAAs) is still under investigation. This work aims to study P53 and hepatocyte growth factor (HGF) as possible diagnostics of de-novo hepatocellular carcinoma (HCC) following DAAs in comparison to alpha-fetoprotein (AFP).

METHOD

This case-control study included 166 patients with liver cirrhosis divided into group-1: patients without HCC (n = 50), group-2: patients with de-novo HCC following DAAs, and achieved sustained virological response (n = 50), and group-3: patients with HCC without DAAs (n = 66). P53 antibody and HGF were determined using a quantitative sandwich enzyme immunoassay technique (Cusabio Co, Houston, USA).

RESULTS

Patients with HCC showed significantly higher HGF. Patients with de-novo HCC following DAAs had significantly higher P53 than HCC without DAAs (P < 0.0001). The multiple logistic regression analysis showed that the P53 levels were significantly associated with susceptibility to de-novo HCC (P value = 0.004). The best overall formula was constructed for HCC diagnosis by entering significant markers into the regression model. A three markers model was developed = (1.22 + AFP X 0.002 + HGF X 0.001 + P53 X 0.001). The medians (percentiles) of combined three markers were 1.8 (1.0-2.1) in liver cirrhosis and 2.2 (2.0-2.9) in all HCC (P < 0.00001). The AUC of combined markers was greater than a single marker. The AUC was 0.87 to differentiate HCC from liver cirrhosis; AUC 0.91 to differentiate de-novo HCC after DAAs from liver cirrhosis.

CONCLUSION

P53 may serve as a diagnostic marker for de-novo HCC after DAAs therapy. HGF may serve as a diagnostic marker for HCC but not specific for de-novo HCC after DAAs therapy.

Plasma cell-free DNA integrity index and hepatocellular carcinoma treated or not with direct-acting antivirals: A case-control study

BACKGROUND AND STUDY AIMS

The clinical value of the cell-free DNA (cf-DNA) integrity index as a diagnostic biomarker of hepatitis C virus (HCV)-related hepatocellular carcinoma (HCC) was investigated and correlated with alpha-fetoprotein (AFP).

PATIENTS AND METHODS

This case-control study was conducted on 160 patients with HCV genotype 4-related liver cirrhosis. Group 1 consisted of 80 patients with HCC, including 40 patients naïve to direct-acting antivirals (DAAs) and 40 patients who received DAAs and achieved sustained virological response. Group 2 comprised 80 patients with cirrhosis without HCC. Plasma cf-DNA integrity index using ALU 115 and ALU 247 sequences was assessed using SYBR Green-based real-time polymerase chain reaction (RT-PCR). The cf-DNA integrity index was calculated as the ratio of Q247/Q115 where Q115 and Q247 are the ALU-qPCR results obtained using ALU 115 and ALU 247, respectively.

RESULTS

Patients with HCC had significantly lower plasma cf-DNA integrity index than those with liver cirrhosis. No significant difference in the cf-DNA integrity index was observed between patients with HCC who received DAAs and those who did not. Receiver operating characteristic (ROC) analysis revealed an area under the ROC curve of 0.965 and 0.886 for detecting HCC using the cf-DNA integrity index and AFP, respectively. The combination of the cf-DNA integrity index and AFP improved the sensitivity from 81.6% to 94.7%, positive predictive value from 93.4% to 94.7%, negative predictive value from 84.4% to 94.9%, and accuracy from 88.4% to 94.8%.

CONCLUSION

The cf-DNA integrity index can predict the occurrence of HCV genotype 4-related HCC. No significant difference in the cf-DNA integrity index was observed between patients with HCC who received DAAs and those without previous DAAs. The combination of the cf-DNA integrity index and AFP provides better HCC prediction accuracy.

Schistosoma mansoni infection and the occurrence, characteristics, and survival of patients with hepatocellular carcinoma: an observational study over a decade

Schistosoma mansoni infection (SMI) is suspected to be directly and indirectly involved in hepato-carcinogenesis. This study evaluated the association of a previous SMI with hepatocellular carcinoma (HCC) development, patients, tumor characteristics, treatment outcomes, and survival. This observational study included patients with HCC with and without previous SMI who presented to the multidisciplinary HCC clinic, Kasr-Alainy hospital (November 2009 to December 2019). It also included 313 patients with liver cirrhosis without HCC. Clinical and laboratory features of the patients (complete blood count, liver/renal functions , alpha-fetoprotein, and hepatitis B/C status), tumor characteristics (Triphasic CT and/or dynamic MRI), liver stiffness (transient elastography), HCC treatment outcome, and overall survival were studied. This study included 1446 patients with HCC; 688(47.6%) composed group-1, defined by patients having a history of SMI, and 758(52.4%) were in group-2 and without history of SMI. Male sex, smoking, diabetes mellitus, splenomegaly, deteriorated performance status, synthetic liver functions, and platelet count were significantly higher in group-1. The groups did not differ with regard to liver stiffness, tumor characteristics, or the occurrence of post-HCC treatment hepatic decompensation or recurrence. HCC treatment response was better in group-2. Group-1 showed lower sustained virological response to hepatitis C direct-acting antivirals (DAAs) compared with group-2 (60% versus 84.3%, respectively, P = 0.027). Prior SMI was associated with HCC (adjusted odds ratio = 1.589, 95% confidence interval = 1.187-2.127), and it was concluded that it increases the risk of HCC. In addition, it significantly affects the performance status, laboratory characteristics, response to DAAs, and overall survival.

Hepatitis C viral RNA in blood mononuclear cells of patients treated with directly acting antivirals

BACKGROUND AND STUDY AIMS

Occult hepatitis C viral infection (OCI) may have serious complications, such as relapse, ongoing histological impairment, hepatic decompensation, hepatocellular carcinoma, and the possible risk of transmission. This study was conducted to assess the occurrence and prevalence of secondary OCI in patients with chronic hepatitis C viral infection (HCV) who received a complete course of directly acting antivirals (DAAs).

PATIENTS AND METHODS

Antiviral therapy consisted of sofosbuvir + daclatasvir ± ribavirin for 12 weeks to 90 treatment-naive, compensated, chronic HCV patients. Plasma and peripheral blood mononuclear cells (PBMCs) were tested for HCV RNA viral load by quantitative, reverse transcription, real-time PCR at 8, 12 (Group I, n = 45), and 24 (Group II, n = 45) weeks after treatment initiation.

RESULTS

By week 8, only 2 and 7 patients were positive for HCV RNA in plasma and PBMCs, respectively. No HCV RNA was detected by weeks 12 or 24 in the PBMCs of Groups I and II, respectively. Older age was significantly associated with HCV RNA positivity in plasma and PBMCs (n = 8) at week 8 compared with HCV RNA negativity (n = 82). No other significant differences were observed for any other variables.

CONCLUSION

The development of secondary OCI among easy-to-treat patients following a full course of DAA treatment doesn't exist, hence, we do not recommend testing the HCV RNA in the PBMCs after complete course of treatment in this patient category. The detection of HCV RNA in PBMCs is recommended as a confirmatory test of cure following a shortened DAA treatment regimen.

Egypt's Ambitious Strategy to Eliminate Hepatitis C Virus: A Case Study

A national hepatitis C virus elimination strategy rooted in mass screening and treatment can be effective in many middle-income countries. A strong public health infrastructure, political commitment, and technological advances are essential to such initiatives.

Introduction:

Chronic hepatitis C virus (HCV) infection is a major public health problem in many low- and middle-income countries. In 2015, Egypt's HCV infection prevalence of 7% among adults was among the highest in the world and accounted for 7.6% of the country's mortality. In 2014, Egypt embarked on an aggressive screening and treatment program that evolved into a national strategy to eliminate HCV as a public health threat by 2021.

Methods:

In this qualitative case study, we analyzed Egypt's HCV control strategy using the Kingdon framework to understand how the problem, policy, and political streams merged to create an opportunity to achieve an ambitious elimination goal. We describe key aspects of the implementation, identify lessons learned, and provide recommendations for other low- and middle-income countries aiming to eliminate HCV.

Results:

Between 2014 and 2020, Egypt screened more than 50 million and treated more than 4 million residents for HCV. Five key elements contributed to Egypt's successful HCV elimination program: (1) sufficient and reliable epidemiologic data to quantify and monitor public health threats; (2) a robust public health care infrastructure; (3) inclusive care that reached all sectors of society; (4) political commitment to public health through increased health care spending and a comprehensive long-term national control strategy; and (5) innovative scientific research and use of information technology.

Conclusion:

Egypt conducted a successful HCV screening program that covered more than 50 million residents and treated more than 4 million. It is poised to be the first country in the world to eliminate HCV within its borders. The lessons learned from this experience can inform the elimination plans of other low- and middle-income countries with high HCV burden.