Active clinical trials for "Hepatitis, Viral, Human"

Pre-exposure prophylaxis (PrEP) based on tenofovir represents a considerably new preventive intervention that has shown to significantly decrease the number of HIV infections while it enables early diagnosis of HIV and other sexually transmitted diseases (STI). In Southern Spain, the target population to receive PrEP are men who have sex with men (MSM) with a history of STI and who pursue high-risk sexual practices regarding the acquisition of HIV, including an elevate number of sex partners, no or inconsistent condom use and the use of specific recreational drugs in the context of sexual activity ("chemsex"). Despite the benefits of PrEP use, it must be taken into consideration that risk compensations that may facilitate the acquisition of other STI may occur, including a higher implementation of risk practices and an increase in the number of partners, which is made easy as various social networks designed for this purpose are available nowadays. In order to better understand the benefit/drawback ratio, accurate data of a population using PrEP under real-life conditions, with densely scheduled follow-up and well-characterized (socio-)demographic parameters, sexual behaviour and STI are warranted.

A community-based "test and treat" intervention integrating point-of-care HCV RNA testing, non-invasive liver disease assessment and linkage to care will lead to a reduction in HCV prevalence among people attending Aboriginal health services.

This is a randomized, multicenter, 2-part, open-label trial of the combination regimen of grazoprevir (GZR [MK-5172]; 100mg), uprifosbuvir (UPR [MK-3682]; 450 mg) and ruzasvir (RZR [MK-8408]; 60 mg) with and without Ribavirin (RBV) in cirrhotic (C) or non-cirrhotic (NC) participants infected with hepatitis C virus (HCV) previously failing a direct-acting antiviral regimen (DAA). The combination regimen, referred to as MK-3682B, will be administered as two fixed-dose combination (FDC) tablets, given once-daily. The study will evaluate the efficacy of MK-3682B with or without RBV as assessed by the proportion of participants achieving Sustained Virologic Response 12 weeks (SVR12) after the end of all study therapy.

The purpose of this study is to assess the safety, pharmacokinetics (PK) and pharmacodynamics of elbasvir (MK-8742) in Hepatitis C Virus (HCV)-infected participants. There will be 3 parts to this study; Part I will enroll only genotype (GT) 1 HCV-infected participants, Part II will enroll GT3 HCV-infected participants, and Part III will enroll only GT1a HCV-infected participants. All parts may run concurrently, or Parts II and III may be staggered. Hypothesis (Part I): At a once-daily dose that is sufficiently safe and well tolerated in HCV-infected participants, elbasvir administered for 5 consecutive days has superior antiviral activity in GT1 HCV-infected participants compared to placebo, as measured by change from baseline in plasma HCV ribonucleic acid (RNA; log 10 copies/mL) at Day 5, 24-hour postdose timepoint. (a true mean viral RNA reduction of at least 3 log10 is anticipated). Hypothesis (Part II): At a dose that is sufficiently safe in GT3 HCV-infected participants, the mean maximum reduction in HCV viral load is greater following multiple dose oral administration of elbasvir as compared to placebo. Hypothesis (Part III): At a once-daily dose that is sufficiently safe and well tolerated in HCV-infected participants, elbasvir administered for 5 consecutive days has superior antiviral activity in GT1a HCV-infected participants compared to placebo, as measured by change from baseline in plasma HCV RNA (log 10 copies/mL) at Day 5, 24-hour postdose timepoint. (a true mean viral RNA reduction of at least 3 log10 is anticipated).

The recurrence of hepatocellular carcinoma (HCC), two years after curative treatment is high, about 40% - 50%. Recently, it has been shown that intra-arterial radioactive lipiodol (Lipiocis®) could reduce the recurrence of cancer and increase the survival after resection of HCC developed on cirrhosis B. The aim of the present trial is to investigate the effect of Lipiocis® in preventing recurrence after curative treatment of HCC in patients with viral or alcoholic hepatitis related cirrhosis by surgical or percutaneous ablation.

The purpose of this study is to assess the safety and efficacy of repeated intravenous infusions of EMZ702 in combination with pegylated interferon and ribavirin in patients with chronic hepatitis C genotype 1.

The aim of the study was to verify the influence of Agaricus blazei (Murrill) ss. Heinemann (A. blazei) on the evolution of nutritional state and liver function in hepatitis C patients.

To determine the efficacy of a hepatitis vaccine in preventing hepatitis B.

The purpose of this study is to test the safety and efficacy of Civacir® to prevent the recurrence of Hepatitis C Virus (HCV) after liver transplant.

Health workers with biological risk in their tasks, who have been vaccinated as non-responders to conventional vaccination against Hepatitis B. To provide Health workers-staff with an additional protection tool against hepatitis B infection. To evaluate the efficacy of the adjuvanted vaccine in healthy nonresponders to conventional hepatitis B vaccine.