Active clinical trials for "Hepatitis A"

This 7 cohort study will evaluate the efficacy and safety of combination treatment with an HCV nucleoside polymerase inhibitor(RO5024048)and an HCV protease inhibitor(RO5190591/ITMN-191/danoprevir) in patients with chronic hepatitis C, genotype 1.Cohorts A,B,C,D and G will be treatment-naive patients, cohort E will be treatment-experienced excluding null responders, and cohort F will be null responders. Cohorts A and B will evaluate doses of 500mg po bid RO5024048 and 100mg po q8h RO5190591, alone or in combination, for up to 7 or 14 days. Cohort C will evaluate combination treatment with either 1000mg po bid RO5024048 and 100mg q8h RO5190591 or 500mg po bid RO5024048 and 200mg q8h RO5190591 for 14 days. Cohort D will evaluate 1000mg po bid RO5024048 and 200mg q8h RO5190591 for 14 days.Cohort E will evaluate 1000mg RO5024048/600mg RO5190591 po twice daily for 14 days, and Cohorts F and G will evaluate 1000mg RO5024048/900mg RO5190591 po twice daily for 14 days. Cohorts will be tested sequentially or in parallel, if supported by appropriate safety and pharmacokinetic data.Following the last dose of study medication patients have the option of continuing treatment with Standard of care therapies. The anticipated time on study treatment is <3 months, and the target sample size is <100 individuals.

The purpose of this study was to assess the safety, tolerability, pharmacokinetics and antiviral activity of ABT-333 (also known as dasabuvir) in treatment-naïve, hepatitis C virus (HCV)-infected participants.

A short 14 day phase 1 study examining 6 monotherapy doses of oral tamoxifen for safety in chronic HCV patients who have failed standard treatment of peginterferon and ribavirin.

The purpose of this study is to explore the efficacy, safety, tolerability, pharmacokinetics (the study of the way a drug enters and leaves the blood and tissues over time), and pharmacokinetic-pharmacodynamic relationships of telaprevir administered in two different doses in combination with two standard therapies commercially available for chronic (lasting a long time) genotype 1 Hepatitis (inflammation of the liver) C virus (HCV) infection.

The purpose of this study is to determine the efficacy and safety of two dosages of PegIntron for treating hepatitis B e antigen (HBeAg) positive chronic hepatitis B compared with the approved dosage, which is PegIntron 1.0 microgram (mcg)/kg given once a week for 24 weeks. This study compares dosages of (1) 1.5 mcg/kg once a week for 24 weeks and (2) 1.5 mcg/kg once a week for 48 weeks with the approved dosage. All subjects are followed for 24 weeks after their treatment ends.

To determine the efficacy and safety of Peginterferón alfa-2a (40 KD) plus Ribavirin in patients who have relapsed or not responded to a previous suboptimal therapy based in Interferon.

Antiviral resistance mutations limit the efficacy of therapy for chronic hepatitis B. At year 2, resistance to adefovir may occur as high as 25% in patients with history of lamivudine resistance. Resistance to entecavir is reported to be 10% in lamivudine refractory patients during the same period. However, combination of lamivudine and adefovir decreased the adefovir resistance rate as low as 0% in the recent studies. By overcoming the antiviral resistance, the efficacy of therapy will be maximized. This study is intended to compare the efficacy of two strategies, combination of lamivudine and adefovir vs. entecavir monotherapy in patients with lamivudine resistance.

The aim of the study is to investigate in subjects receiving their first course of peg-interferon α-2b plus ribavirin therapy for chronic HCV infection

The objectives are to determine the immunological profile (CD4+, CD8+ cells, DTH) induced by immunization with HCV antigen peptide vaccine with polyarginine. to document virological (HCV-RNA) and biochemical (ALT) responses following immunization with HCV antigen peptide vaccine with polyarginine. to assess the safety of immunization with HCV antigen peptide vaccine with polyarginine.

The purposes of the PLUS study were to confirm the safety and tolerability of two doses of LocteronTM (320 ug and 640 ug) dosed over four weeks in patients who had failed prior anti-HCV therapies (Panels A and B), and then to continue to study the safety, tolerability, and preliminary efficacy of the same two doses of LocteronTM (320 ug and 640 ug) in treatment-naïve genotype 1 HCV patients when Locteron dosed over 12 weeks (Panel C). All subjects were also to receive oral daily weight-based ribavirin.