View clinical trials related to Hepatitis A.
Filter by:Hepatitis C virus infection is a major cause of chronic hepatitis, cirrhosis, and liver cancer. The risk of developing cirrhosis for people with chronic infection with the virus ranges from 15% to 30% over 20 years. Despite undeniable advances in the treatment of hepatitis C infection and the WHO strategy to eliminate hepatitis C by 2030, this infection continues to be a major public health problem globally and many HCV-positive individuals are unaware of their HIV status. People who inject drugs (PWID) are at increased risk for HCV. Several studies have reported high HCV prevalence rates, especially among PWID. PWID are usually exposed to a higher risk of various infectious diseases, mainly due to their drug consumption behaviors and habits, in addition to the risks and harms associated with the respective routes of self-administration. Worldwide, there are around 11 million PWIDs and there are approximately 2.3 million coinfections between HIV and HCV worldwide, of which more than half (1.3 million) occur in PWID. The coexistence of these two health conditions leads to accelerate the progression of liver disease. The global prevalence of HCV in 2019 among PWID was 50.2%, which is equivalent to 5.6 million people who inject drugs and live with hepatitis C. PWID had been considered a difficult group to reach, manage, and treat because HCV treatment management in these individuals is challenging and they have a higher risk of reinfection and some past HCV treatment guidelines excluded PWIDs from consideration, citing concerns about adherence, increased susceptibility to side effects, and reinfection. However, there is now compelling evidence that HCV treatment is safe and effective among PWID. In Colombia, the prevalence of hepatitis C among PWID has been measured locally in some cities. In Bogotá, it went from 1.7% in 2002 to 6.7% in 2014. For 2021, the prevalence of hepatitis C was measured in Bogotá, Medellín, Santiago de Cali, the metropolitan area of Pereira, Dos Quebradas, Medellín, Cucuta, and Armenia. The results of prevalence of antibodies against hepatitis C were as follows: Cali with 80.2%, is the city with the highest reactivity, followed by Pereira and Dos Quebradas with 71.4%, Armenia with 69.6%, and Cucuta with 62.8%. We do not have recent data about the impact of intervention to reduce HVC transmission in those groups.
In this study, the researchers want to focus on the prevalence of anti-HEV antibodies by a new generation test, direct detection of HEV RNA, and its genotypic analysis in a group of human tissue and cell donors.
The project is a national, prospective, multicenter, non-interventional pilot project of screening HCV in PWID in the Czech Republic. The main goal of the project is to methodically prepare, implement and evaluate a pilot project that will verify the suitability of the proposed procedure of early detection of Hepatitis C and setting up and testing new methods and implementation into the system of social health care.
Hepatitis C (HCV) HCV antibody assays are the standard of care test used to screen for HCV, but confirmation of acute infection is relegated in the current US guidelines to polymerase chain reaction (PCR) which often takes multiple days and may result in a loss to follow up and treatment, especially in high prevalence populations. HCV core antigen is a new, research use only immunoassay intended for use on the Abbott Alinity i system, an FDA-cleared instrument for clinical chemistry and immunoassay testing. The aim of the study is to evaluate the 48-hour stability of HCV core antigen in fresh serum and plasma specimens collected from individuals with a detectable HCV viral load (HCL VL), as per a recent antibody assay test, under multiple specimen storage conditions mirroring those employed in clinical laboratories.
This is a controlled study intended to evaluate the usability, label comprehension and performance of the INSTI® HCV Self Test in the hands of untrained lay users using fingerstick blood, with instructions for use specifically designed for a lay person who has not used any hepatitis C rapid self test prior to the study and to assess "lay" users ability to comprehend key concepts and information provided on the outside of the pouch and in the accompanying Instructions for Use. Comprehension will be assessed without product familiarization (demonstration/training) by a healthcare professional.
This is a prospective, multicenter, open-label, non-randomized controlled real-world study to explore the efficacy and safety and to accumulate more evidence-based medical data of an antiviral treatment programme for chronic viral hepatitis B with nonalcoholic fatty liver disease. A total of 1500 patients with chronic hepatitis B complicated with nonalcoholic fatty liver disease are divided into test group (1000 patients receiving PEG-IFNα-based antiviral therapy (combined NAs or Peg-IFNα monotherapy) and control group（500 patients receiving NAs monotherapy） according to their treatment intention. Laboratory and medical data from specified follow-up points are collected, and adverse events and drug combinations are recorded detailly. The primary efficacy indicator is HBsAg clearance at 48 weeks of treatment, and the secondary indicators included: (1) HBsAg clearance at 96 weeks of treatment, (2) Cumulative HBsAg clearance at week 24、120、144、168、192、216 and 240; (3) The improvement of liver function level(ALT, AST, TBIL, etc.), blood lipid (TC, TG, LDL-C, HDL-C, etc.), fasting blood glucose, insulin resistance index (HOMA-IR), controlled attenuation parameter, body mass index , liver stiffness measurement, liver histological fibrosis, FIB-4 index from baseline; (4)Incidence of liver cirrhosis and hepatocellular carcinoma during follow-up. The security assessment includes adverse events, vital signs, and imaging.
A prospective cross-sectional study in which surgically non-invasive sample-taking is done only for the purpose of testing the samples on iStatis HBsAg Test at the point of care.
Up to 650,000 people in Brazil are living with chronic hepatitis c virus (HCV) infection. Hepatitis C is a silent disease, and up to 20% of cases can progress to liver cirrhosis and its complications. Rapid tests for diagnosis of HCV infection and non-invasive methods for detecting liver cirrhosis are available in the Brazilian Public Health System. Additionally, safe and highly effective drugs (direct-acting antivirals, DAAs) have been delivered for free for hepatitis C treatment by the Brazilian Unified Health System (Sistema Único de Saúde, SUS) since 2015. Sustained virological response (SVR) rates with DAAs in studies conducted in Brazil and Latin America were higher than 90%. Despite the availability of rapid tests for early diagnosis and effective drugs, the HCV continuum of care remains deficient in Brazil. It is estimated that only 10% of individuals known to have hepatitis C achieve HCV cure (SVR). This is explained by multiple barriers from diagnosis to treatment access, such as low rates of population screening (HCVST are not available in Brazil) and few available slots in tertiary centers for hepatitis C treatment by specialists. International studies have described that SVR rates by simplified hepatitis C treatment performed by non-specialists in the Primary Care System were similar to those treated in tertiary centers by specialists (standard-of-care). However, the optimal strategy for managing hepatitis C within the Brazilian-SUS remains unclear.This project aims to evaluate the improve of the HCV continuum of care by a implementation of a test-and-treat strategy in the Primary Care System in Brazil. The project consists of two parallel studies (and a sub-study). The project consists of two parallel studies (and a sub-study). Study I is a population-based cross-sectional screening study using rapid tests to determine the prevalence of HCV infection in people attending a Basic Health Care Unit. The sub-study associated with Study I is a cross-sectional study to assess the usability of a self-test for the detection of HCV antibodies in oral fluid (participants included in Study I). Study II is a phase IV open-label randomized clinical trial to evaluate the non-inferiority of simplified and decentralized hepatitis C treatment ("Simplified-and-Decentralized (SD) HCV treatment"; experimental arm) compared to specialist reference treatment ("Standard-of-Care (SC) HCV treatment"; control arm) within the SUS.
Rationale: Currently, there is no curative therapy available for patients that are chronically infected with the hepatitis B virus (HBV). Especially the presence of a viral reservoir of stable episomal, covalently closed circular DNA (cccDNA) in the nucleus of infected hepatocytes poses a great challenge for the development of curative therapies. HBV cccDNA acts as the template for production of viral proteins and HBV genomes. In a preclinical study, terbinafine (an antifungal agent) was identified as a potent and specific suppressor of HBx-mediated cccDNA transcription. HBx is an accessory viral protein of HBV which has been proven to be essential for HBV replication and enhances replication at the transcriptional level in vivo. The suppression of cccDNA transcription results in a strong reduction of the production of viral genomes (RNA and DNA) as well as viral proteins. This will allow recovery of the immune system, increase viral clearance and prevent replenishment of the cccDNA pool in the hepatocyte, all contributing to cure chronic hepatitis B (CHB). Objective: to provide proof of concept for the inhibition of HBx mediated cccDNA transcription by terbinafine, both as monotherapy and add-on therapy next to tenofovir. Secondary outcomes will be the safety and tolerability of terbinafine in this specific group. Study design: This pilot study is a stratified, single center, randomized, double-blinded, placebo-controlled, dose-ascending proof of concept clinical trial. Study population: patients chronically infected with the hepatitis B virus with a normal liver function and no signs of liver damage, who do not use any antiviral medication (group A, n=16) or are treated with tenofovir > 6 months (group B, n=16). Intervention: Patients will be randomly allocated to daily oral treatment with terbinafine or a matched placebo, either as monotherapy (group A) or as add-on therapy to tenofovir (group B). Main study parameters/endpoints: Primary outcomes: decline in level of serum HBsAg >0.32log10 IU/mL in both groups A and B and decline in serum HBV DNA >0.86log10 in group A at the end of study treatment (week 10 vs baseline). Secondary outcomes: 1) Safety and tolerability of terbinafine as mono- or combination therapy; 2) level of serum HBsAg and HBV DNA at 3 months follow-up; 3) decline of HBsAg levels over time (all visits); 4) HBV RNA, large HBsAg (LHBs) HBcrAg levels, and HBeAg status at baseline and end of study 4). Nature and extent of the burden and risks associated with participation, benefit and group relatedness: Patients participating in this study will undergo physical examinations and blood sample collections (13 samples and in total 467.5 mL). They will also be asked to fill in the HBQOL and EQ5D5L quality of life questionnaires and a medicine diary. In total there will be 13 visits in the hospital of which 7 will be for blood collection only. Terbinafine can induce liver damage 1 of 50,000 to 120,000 prescriptions (LiverTox), a weekly safety laboratory control is implemented in the visits to detect possible liver toxicity in an early stage and prevent liver damage.
The study aimed to evaluate the relationship between hepatitis B virus genotype and treatment response in children with chronic hepatitis B with specific treatment indications. This is a prospective cohort study, with a follow-up period of at least 12 months, conducted at Children's Hospital 1 and City Children's Hospital, Ho Chi Minh City, Vietnam. The patient's blood was taken to be tested for hepatitis B virus genotyping using Sanger sequencing at the Center for Molecular Biomedicine Ho Chi Minh City. The research hypothesis is that genotype is related to treatment response.