Lamivudine for Chronic Hepatitis B

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.

Study Overview

• Status: Completed
• Conditions: Chronic Hepatitis B; Glomerulonephritis; Polyarteritis Nodosa; Chronic Hepatitis D
• Intervention / Treatment: Drug: Lamivudine

Detailed Description

To assess the safety, antiviral activity and clinical benefit of lamivudine (3-thiacytidine: 3TC) in chronic hepatitis B, we will treat 60 patients with oral lamivudine in a dose of 100 mg daily for up to five years. Lamivudine is a nucleoside analogue which is used extensively in patients with HIV infection and is being studied in controlled trials in chronic hepatitis B. In this study, we will evaluate lamivudine in patients with four different forms of chronic hepatitis B: (A) Atypical serology (HBeAg negative), (B) extra-hepatic manifestations, (C) chronic delta hepatitis, (D) typical HBeAg- positive chronic hepatitis B. After evaluation and liver biopsy, patients will receive lamivudine, 100 mg orally once daily for 1 year, being monitored at regular intervals for symptoms of liver disease, side effects of lamivudine, serum biochemical and hematologic indices, and serologic markers of hepatitis B (and D) virus replication. At one year, patients will have a repeat medical evaluation and liver biopsy. If there is virologic, biochemical or histologic evidence of benefit, therapy will be continued thereafter for up to 5 years. Patients who develop viral resistance to lamivudine may be offered therapy with higher doses of lamivudine (300 mg per day). The activity of lamivudine will be assessed by changes in levels of HBV DNA or HDV RNA during treatment and its efficacy by loss of viral markers and improvements in aminotransferases and liver histology.

• Study Type: Interventional
• Enrollment: 60
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • Maryland
    • Bethesda, Maryland, United States, 20892
      • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

INCLUSION CRITERIA

Age 18 years or above, male or female.

Known presence of HBsAg in serum for at least 6 months.

Liver biopsy histology showing chronic hepatitis with or without cirrhosis.

Previous therapy with alpha interferon without a lasting effect or intolerance to alpha interferon, due to side effects.

Written informed consent.

Group A: For patients with chronic hepatitis B with atypical serology: absence of HBeAg from serum despite elevations in serum aminotransferases, such as that the average levels are greater than 55 U/L (approximately 1.3 times the upper limit of the normal range) based upon two determinations taken at least one month apart during the 6 months before entry.

Group B: For patients with glomerulonephritis: proteinuria of greater than 1 gm per 24 hours. For patients with polyarteritis, radiological proof of arteritis and involvement of at least on organ system outside of the liver.

Group C: For patients with chronic delta hepatitis: anti-HDV in serum and HDV antigen in liver biopsy or HDV RNA in serum and elevations in serum aminotransferases, such that the average levels are greater than 55 U/L based upon two determinations taken at least one month apart during the 6 months before entry.

Group D: For patients with chronic hepatitis B and typical serology: HBeAg and HBV DNA in serum but ineligibility to enter the multicenter trial of lamivudine either because of previous receipt of interferon and intolerable side effects, refusal to receive interferon again, because of normal serum aminotransferases, or lack of availability of the trial.

EXCLUSION CRITERIA

Pregnant or if capable of bearing or fathering children must practice adequate contraception.

Significant systemic illnesses other than liver diseases, including congestive heart failure, renal failure, chronic pancreatitis, diabetes mellitus with poor control.

Pre-existing bone marrow compromise: hematocrit must be greater than 30%, white blood cell count must be greater than 2000 mm(3), platelets must be greater than 70,000 mm(3).

Creatinine clearance must be greater than 50 cc/min.

A history of clinically apparent pancreatitis or evidence of subclinically pancreatitis as shown by serum amylase values twice the upper limits of the normal range and abnormalities of the pancreas on computerized tomography or other imaging studies of the abdomen.

Irreversibly severe cirrhosis as defined by Child's stage C.

Presence of anti-HIV or anti-HCV with HCV RNA in serum.

Immunosuppressive therapy requiring use of more than 10 mg of prednisone (or its equivalent) per day.

Other antiviral therapy for chronic hepatitis B within the previous 3 months.

Sensory or motor neuropathy apparent from medical history and physical examination.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment

Collaborators and Investigators

• Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Publications and helpful links

General Publications

• Hoofnagle JH, di Bisceglie AM. The treatment of chronic viral hepatitis. N Engl J Med. 1997 Jan 30;336(5):347-56. doi: 10.1056/NEJM199701303360507. No abstract available.
• Perrillo RP, Gelb L, Campbell C, Wellinghoff W, Ellis FR, Overby L, Aach RD. Hepatitis B e antigen, DNA polymerase activity, and infection of household contacts with hepatitis B virus. Gastroenterology. 1979 Jun;76(6):1319-25.
• Beasley RP, Hwang LY, Lin CC, Chien CS. Hepatocellular carcinoma and hepatitis B virus. A prospective study of 22 707 men in Taiwan. Lancet. 1981 Nov 21;2(8256):1129-33. doi: 10.1016/s0140-6736(81)90585-7. No abstract available.

Study record dates

Study Major Dates

• Study Start: September 1, 1995
• Study Completion: September 1, 2005

Study Registration Dates

• First Submitted: November 3, 1999
• First Submitted That Met QC Criteria: November 3, 1999
• First Posted (Estimate): November 4, 1999

Study Record Updates

• Last Update Posted (Estimate): March 4, 2008
• Last Update Submitted That Met QC Criteria: March 3, 2008
• Last Verified: September 1, 2005

More Information

Terms related to this study

• Keywords: Lamivudine; Cirrhosis; Glomerulonephritis; 3TC; Chronic Hepatitis B; Nucleoside Analogues; Polyarteritis Nodosa; Delta Hepatitis; Hepatitis Mutants; Chronic Hepatitis D
• Additional Relevant MeSH Terms: Digestive System Diseases; Cardiovascular Diseases; Vascular Diseases; Skin Diseases; RNA Virus Infections; Virus Diseases; Infections; Blood-Borne Infections; Communicable Diseases; Kidney Diseases; Urologic Diseases; Liver Diseases; Hepatitis, Viral, Human; Hepadnaviridae Infections; DNA Virus Infections; Vasculitis; Skin Diseases, Vascular; Enterovirus Infections; Picornaviridae Infections; Nephritis; Systemic Vasculitis; Arteritis; Hepatitis B; Hepatitis; Hepatitis A; Hepatitis D; Hepatitis D, Chronic; Hepatitis B, Chronic; Hepatitis, Chronic; Glomerulonephritis; Polyarteritis Nodosa; Molecular Mechanisms of Pharmacological Action; Anti-Infective Agents; Antiviral Agents; Reverse Transcriptase Inhibitors; Nucleic Acid Synthesis Inhibitors; Enzyme Inhibitors; Anti-HIV Agents; Anti-Retroviral Agents; Lamivudine
• Other Study ID Numbers: 950199; 95-DK-0199