Nabi-HB Administered Subcutaneously in Patients With Hepatitis B Virus Post Liver Transplantation
- Conditions
- Hepatitis B, Chronic
- Interventions
- Biological: Nabi-HB
- Registration Number
- NCT00800787
- Lead Sponsor
- Biotest Pharmaceuticals Corporation
- Brief Summary
A phase 3, multicenter, open label study to assess the safety and efficacy of Nabi-HB, administered subcutaneously in patients with Hepatitis B Virus Associated Liver Disease who underwent liver transplantation.
- Detailed Description
This is a phase 3 prospective, single arm open label study to be conducted t approximately 4 study sited located in th e USA. Approximately 25 HBV DNA negative patients who underwent liver transplant at least one year prior, due to chronic hepatitis B infection will bwe eligible for study participation. The study consist of a total of 16 study visit and the duration of participation will be 20 weeks for each patients. Patients will be converted from the intravenous standard HBIG to Nabi-HB subcutaneous administration according to the individual scheduled dosing interval.
Recruitment & Eligibility
- Status
- WITHDRAWN
- Sex
- All
- Target Recruitment
- Not specified
- Male or female patients 18 years old or older as of visit one.
- If female is not trying to conserve, not lactating, and has a negative serum pregnancy test and use an acceptable method of contraception or be at least one year post-menopausal or surgically sterile.
- Able to provide written informed consent.
- First time liver transplant recipient.
- Primary, single organ recipient (deceased donor <65 years old).
- receive regular long-term HBIG prophylaxis with stabilized HBIG dosage and administration intervals.
- Have negative quantifiable HBV-DNA and HBsAg results prior to dosing at visit 2.
- Following the last IV administration of HBIG, have a baseline serum anti-HBs level of >150 IU/ML prior to dosing at visit 2.
Exclusion Criteria
- Positive HCV or HIV test results.
- Unexplained elevated liver function tests.
- Serum creatinine level >2.0 times the upper limit of normal.
- life expectancy <6 months.
- liver transplantation with ongoing acute rejection episode. Donor liver that was from a hepatitis Bor C positive donor. Underwent a liver transplant <12 months prior to visit 1.
- Know history of cancer, suspected cancer, or cancer therapy within 12 months.
- History of autoimmune disease.
- History/current evidence of coagulation disorder, severe cardiac disease, unhealed gastric or duodenal ulcer, or other significant disease.
- Evidence of any other unresolved infection and any unresolved opportunistic infection requiring treatment.
- Known immunoglobulin A deficiency.
- History of use of immunosupressive or immunomodulatory drug within 3 month prior to visit 1. (except low dose glucocorticoid therapy, <10 mg of prednisone or equivalent per day.)
- received and investigational drug 30 days prior to visit 1.
- use of plasma preparations or other immunoglobulins during the study.
- Know intolerance to proteins of human origin, immunoglobulin, or comparable products.
- Evidence of alcohol and/or drug abuse within 6 month of visit 2 or inability/unwillingness to abstain from alcohol for the duration of the study.
Not provided
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- SINGLE_GROUP
- Arm && Interventions
Group Intervention Description Arm One: Nabi-HB Nabi-HB All subjects will be administered Nabi HB Subcutaneously
- Primary Outcome Measures
Name Time Method To evaluate the efficacy of Nabi-HB administered subcutaneously weekly for a total of 14 weeks in patients who previously underwent a liver transplant. Levels will provide evidence if effective anti-HB levels >150 IU/ML can be maintained. 14 weeks
- Secondary Outcome Measures
Name Time Method To evaluate the safety of Nabi-HB administered subcutaneously weekly for a total of 14 weeks. 14 weeks