Lamivudine for Chronic Hepatitis B
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|ClinicalTrials.gov Identifier: NCT00001457|
Recruitment Status : Completed
First Posted : November 4, 1999
Last Update Posted : March 4, 2008
Chronic hepatitis B is a disease of the liver caused by the hepatitis B virus. It affects nearly 1 million Americans. Approximately 25% of patients with chronic hepatitis B will develop liver cirrhosis and 5% of patients will develop liver cancer.
Presently, two medications have been shown effective in the treatment of hepatitis B: lamivudine and alpha interferon. Alpha interferon (an antiviral drug that acts through the immune system) is given by injection once daily or three times a week for four to six months. Lamivudine (also known as 3-thiacytidine: 3TC) is an antiviral medication given as a pill once a day for twelve months. These treatments have been known to provide long-term improvement in one third of patients receiving them.
In previous research, the drug lamivudine was shown to stop the growth of the hepatitis B virus and to lead marked decreases in the levels of hepatitis B virus and to improvements in the disease in 50 to 70% of patients. However, once lamivudine therapy was discontinued the virus returned to levels noted before the therapy began. In those studies lamivudine was given for 3 to 12 months then discontinued. This study will investigate the safety and effectiveness of long-term therapy with lamivudine.
This study will select 60 patients diagnosed with hepatitis B. After a thorough medical examination and liver biopsy, subjects will be given lamivudine. The drug will be taken by mouth in tablet form (100 mg) once a day for up to 5 years. Subjects will undergo regular check-ups and after 1 year of therapy be admitted to the Clinical Center for another medical examination and liver biopsy to assess progress. Patients who have benefitted from the therapy will continue taking the medication for up to 5 years. A third liver biopsy will be done during the last year of treatment. The effectiveness of lamivudine will be determined by whether levels of hepatitis B virus decrease in the blood, whether liver enzymes improve, and whether inflammation and scarring decreases in the liver biopsies.
|Condition or disease||Intervention/treatment||Phase|
|Chronic Hepatitis B Chronic Hepatitis D Glomerulonephritis Polyarteritis Nodosa||Drug: Lamivudine||Phase 2|
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||60 participants|
|Official Title:||Lamivudine for Chronic Hepatitis B|
|Study Start Date :||September 1995|
|Estimated Study Completion Date :||September 2005|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00001457
|United States, Maryland|
|National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)|
|Bethesda, Maryland, United States, 20892|