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Hepatitis A clinical trials

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NCT ID: NCT00483470 Completed - Hepatitis A Clinical Trials

Immunogenicity and Safety of Sanofi Pasteur's AVAXIM 80U Pediatric Vaccine Followed by Booster Dose

Start date: June 2007
Phase: Phase 3
Study type: Interventional

As per request by the Heath Authorities, the present clinical study will assess the immunogenicity and safety

NCT ID: NCT00480116 Completed - Hepatitis B Clinical Trials

Consistency Study of Three Lots of Henogen's Adjuvanted Hepatitis B Vaccine When Given in 0, 1 Month Schedule

Start date: January 2008
Phase: Phase 3
Study type: Interventional

The study vaccine has been developed for use in pre-dialysis/ haemodialysis patients and immuno-compromised individuals who could have or had a sub-optimal response following vaccination for hepatitis B with currently available commercial vaccines (target population). This study will aim to confirm in a clinical setting the consistency of production of three lots of the vaccine.

NCT ID: NCT00475176 Completed - Chronic Hepatitis C Clinical Trials

S-Adenosyl Methionine (SAMe) to Treat Patients With Chronic Hepatitis C

Start date: May 2007
Phase: Phase 2
Study type: Interventional

This study will examine the effectiveness of S-adenosyl methionine (SAMe) in combination with peginterferon and ribavirin for treating hepatitis C virus. One out of three patients with hepatitis C develops cirrhosis of the liver, which can lead to liver failure or liver cancer. SAMe is a nutritional supplement that is made naturally in all cells of the body and acts to improve how the body handles stress. In laboratory experiments with liver cells, SAMe decreases the injury caused by liver toxins and improves the ability of interferon to block hepatitis C virus. Patients 18 years of age and older with hepatitis C infection who did not respond successfully to prior treatment with interferon and ribavirin or peginterferon and ribavirin may be eligible for this study. Participants receive the following treatment: - Peginterferon (given by injection) and ribavirin (taken by mouth) for 2 weeks - Washout period (no medications) for 4 weeks - SAMe (taken by mouth) for 2 weeks - Peginterferon, ribavirin and SAMe for 12-48 weeks, depending on patient response to treatment. Participants have a thorough physical evaluation before beginning treatment and again at the study's end. After starting treatment, patients return for clinic visits and blood tests weekly for the first several weeks, then less frequently (at 2-week, then 4-week and 8-week intervals until up to 72 weeks) to monitor symptoms, drug side effects, hepatitis C virus levels, liver enzyme levels and immune responses to hepatitis C.

NCT ID: NCT00475072 Completed - Clinical trials for Hepatitis C, Chronic

A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) Plus Ribavirin in Hemophiliac Patients With Chronic Hepatitis C.

Start date: June 2003
Phase: Phase 4
Study type: Interventional

This study will evaluate the efficacy and safety of PEGASYS plus ribavirin in male patients with hemophilia A and chronic hepatitis C. All patients will receive PEGASYS 180 micrograms s.c. weekly plus ribavirin 1000-1200mg p.o. daily (depending on body weight) for 48 weeks. Following treatment there will be a 24 week period of treatment-free follow-up. The anticipated time on study treatment is 3-12 months, and the target sample size is <100 individuals.

NCT ID: NCT00474955 Completed - Clinical trials for Hepatitis C, Chronic

A Study of PEGASYS (Peginterferon Alfa-2a (40KD)) in Patients With Chronic Hepatitis C and Chronic Renal Failure.

Start date: July 2007
Phase: Phase 4
Study type: Interventional

This single arm study will assess the efficacy and safety of PEGASYS in patients with chronic hepatitis C and end-stage renal disease, including patients on hemodialysis. Patients will receive PEGASYS at a dose of 180 micrograms weekly; those with a calculated glomerular filtration rate of <15mL/min will receive a reduced dose of 135 micrograms weekly. Following 48 weeks of treatment there will be a 24 week period of treatment-free follow-up. The anticipated time on study treatment is 3-12 months, and the target sample size is 100-500 individuals.

NCT ID: NCT00473993 Completed - Clinical trials for Hepatitis C, Chronic

Hepatitis C Among Opioid Addicts in Opioid Maintenance Treatment in Zurich, Switzerland

HepCOP
Start date: July 2007
Phase: N/A
Study type: Observational

Hepatitis C viral infection is common among opioid addicts in Zurich, Switzerland. The majority undergoes a maintenance treatment with methadone, heroin or buprenorphine. While stabilized by an opioid maintenance treatment (OMT)chronic hepatitis C can be treated with pegylated interferon plus ribavirin. As not sufficiently known, the results are comparable to the results of the treatment of nonaddicts. Our crossectional study investigates how many patients undergoing OMT are adequately investigated concerning hepatitis C. If not, why are they not adequately investigated and treated? Representative data are collected in the local clinics and medical practices involved in OMT in the Kanton of Zurich. The patients files are revised and the involved doctors are asked through a structured interview.

NCT ID: NCT00467545 Completed - Chronic Hepatitis B Clinical Trials

An Extension to Viral Kinetics Study of Telbivudine and Entecavir in Adults With Chronic Hepatitis B

Start date: April 2007
Phase: Phase 4
Study type: Interventional

This study is to evaluate the safety of telbivudine for up to 21 months of open-label treatment in patients with chronic hepatitis B who have completed the CLDT600A2407 trial. Patients treated with telbivudine during core phase will continue telbivudine and patients treated with entecavir during core phase will be switched to telbivudine if the patient is willing to enroll this study.

NCT ID: NCT00466336 Completed - Cirrhosis Clinical Trials

Prediction of Hepatic Fibrosis in Patients With Chronic Hepatitis C by Biochemical and Duplex Doppler Indices

Start date: January 2003
Phase: N/A
Study type: Observational

The purpose of our prospective study was to evaluate the value of Doppler parameters and compare the diagnostic accuracy of Doppler parameters with various biochemical indices in predicting significant hepatic fibrosis (≥ F2) and cirrhosis (F4) in chronic hepatitis C (CHC) patients.

NCT ID: NCT00466219 Completed - Hepatitis C Clinical Trials

Ribavirin/Pegasys Treatment of Recurrent Hepatitis C After Liver Transplant

Start date: May 2002
Phase: Phase 3
Study type: Interventional

The aim of the study is to assess whether patients with recurrent hepatitis C after liver transplantation will benefit from a treatment with ribavirin/PEG-IFN-alpha combined treatment for 48 weeks.

NCT ID: NCT00456625 Completed - Hepatitis B Clinical Trials

Immune Response to Hepatitis B Vaccine Challenge Dose in Subjects Who Received a Primary Neonatal Hepatitis B Vaccine.

Start date: April 2007
Phase: Phase 4
Study type: Interventional

The current study will evaluate immunological memory to hepatitis B antigen in subjects who received primary neonatal vaccination of hepatitis B vaccine (Engerix™-B ), 20 years ago in the primary study and who have anti-HBs antibody concentrations < pre-defined cut-off values at the previous long-term time point. All participating subjects will receive a challenge dose of hepatitis B vaccine. Subjects will be aged approximately 20-21 years at the time of this study. No new subjects will be recruited in this long-term follow-up study. Blood sampling will be done one month after the administration of the challenge dose. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.