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Browse 2,113 clinical trials for hepatitis. Find studies that match your criteria and connect with research centers.
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NCT01480622
This study will evaluate the pharmacokinetic profile of tenofovir disoproxil fumarate (TDF) 300 mg in Chinese subjects to support the registration of this compound in the People's Republic of China. This will be an open-label, single group, single and repeat dose study without placebo in healthy male and female subjects. Pharmacokinetic sampling to enable measurement of plasma concentrations of tenofovir will be conducted over a 60-h period after the single dose and at steady state. The duration of the study will be approximately 7 weeks from screening to follow-up.
NCT02443233
Globally, hepatitis B virus (HBV) infection is the most common form of chronic hepatitis. There are still a lot of uncertainties on how infants acquired HBV leading to the development of chronic HBV infection despite active and passive immunoprophylaxis. The investigators would like to carry out a prospective study to answer the following questions: 1. the paternal, maternal and obstetric factors leading to immunoprophylaxis failure 2. the prevalence of immunoprophylaxis failure in Hong Kong
NCT01805882
Background: \- GS-7977, GS-5885, GS-9669, and GS-9451 are new drugs for treating hepatitis C virus (HCV) infection. GS-7977 may help treat the infection when used with other treatments like interferon therapy. GS-5885, and GS-9669, and GS-9451 also lower the amount of HCV in the body. Researchers want to see whether GS-7977 can be combined with any of the other three drugs to treat HCV infection. Some participants will take GS-7977 and GS-5885. Others will take GS-7977, GS-5885 and GS-9669 or GS-7977, GS-5885 and GS-9451. Objectives: \- To see whether GS-7977 with GS-5885 alone or in combination with either GS-9669 or 9451 can be used to treat HCV infection. Eligibility: Individuals at least 18 years of age who have chronic HCV infection and have never been treated for it. Individuals at least 18 years of age who have chronic HCV infection and have not responded to interferon therapy. Individuals at least 18 years of age who have chronic HCV infection with advanced liver disease and have never been treated for HCV Design: Participants will be screened with a physical exam and medical history. Blood samples will be collected. A liver biopsy may also be performed. Some participants will take the two study drugs and some will take three study drugs. Those who take GS-7977 and GS-5885 will have one daily tablet named fixed dose combination or FDC. Those who take GS-7977 and CS-9669 will have three daily tablets taken once daily. Those who take GS-7977 and GS-5885 and GS-9451 will take 2 pills once a day. GS-7977 and GS-5885 will be combined in one pill and GS-9451 will be in another pill. Treatment will be monitored with frequent blood tests. These tests will check liver function and the level of HCV infection. Participants may have other blood tests as needed for treatment. Participants will have 4, 6 or 12 weeks of treatment depending on which study drugs are scheduled to take. After they complete their schedule, they will stop treatment with the study drugs. They may also have another liver biopsy. Participants will have regular follow-up visits over the next 48 weeks. They will have physical exams and provide blood samples....