Chronic Hepatitis BNCT00042393
An Open-Label Program of Adefovir Dipivoxil in the Treatment of Patients With Lamivudine-Resistant Chronic Hepatitis B With Limited Treatment Options
A study testing Adefovir Dipivoxil in people with Chronic Hepatitis B, run by Gilead Sciences.
Trial summary
The purpose of this early access protocol is to provide access to adefovir dipivoxil prior to its commercial availability to people with lamivudine-resistant chronic hepatitis B who have limited treatment options. Read more about this study
- Who is it for?
- Ages 16 years and older
- Conditions the study is for
- Chronic Hepatitis B
- What is being tested?
- Adefovir Dipivoxil
- How many people
- Not given
- Where
- No sites listed yet
- Study dates
- Start not givento not given
- Phase
- Expanded access
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 16 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- =/> 16 years of age (or minimum age required in a given country).
- Prior lamivudine therapy for a cumulative period of > 24 weeks or genotypic evidence of lamivudine resistance.
- Clinical evidence of lamivudine-resistant hepatitis B defined as positive serum hepatitis B virus (HBV) DNA greater than or equal to 10^6 copies/mL (PCR assay) and ALT greater than or equal to 1.2 X upper limit of normal (ULN) within 4 weeks of screening despite ongoing therapy with lamivudine.
- Treating physician feels that the patient is at risk for disease progression.
- Screening laboratory values measured as follows, within 28 days prior to the baseline visit:
- Adequate hematologic function.
Show all 11Show fewer
- Absolute neutrophil count =/> 750/mm3, platelets =/> 50,000/mm3, hemoglobin =/> 7.5 g/dL.
- Females of childbearing potential must have had a negative serum or urine pregnancy test during the screening period. Females must use effective method(s) of contraception during heterosexual intercourse while on adefovir dipivoxil and at least 30 days following treatment discontinuation.
- Able to understand and sign the informed consent prior to undergoing study procedures and able to comply with the requirements of the study.
- Patients co-infected with HIV, hepatitis C virus (HCV), or other viral infections will be eligible to participate provided they meet all other entry criteria.
- Patients who do not meet these entry criteria but for whom the treating physician believes that chronic hepatitis B disease progression or premature death is likely to occur in the absence of early access to adefovir dipivoxil will be considered on a case-by-case basis by the Parexel medical monitor.
Who cannot join
- Patients with any serious or active medical or psychiatric illness that, in the opinion of the investigator, would interfere with patient treatment, assessment, or compliance with the protocol or dosing requirements.
- Patients with hypersensitivity to any of the components of the drug product.
- Currently receiving nephrotoxic drugs (with the exception of cyclosporine or tacrolimus in patients post liver transplantation) such as aminoglycosides (e.g., amikacin, gentamicin, kanamycin, neomycin, netilmicin, streptomycin, tobramycin), conventional amphotericin B, intravenous (IV) vancomycin, cidofovir, IV foscarnet, cisplatin, or IV pentamidine OR competitors of renal excretion such as probenecid and sulfinpyrazone. These agents must be discontinued at least 7 days prior to starting treatment with adefovir dipivoxil.
- Currently enrolled in another clinical trial of adefovir dipivoxil.
- HIV and HBV co-infected patients receiving tenofovir disoproxil fumarate [Viread(R)] for their HIV disease.
- Pregnant or lactating females.
About this study
Official title: A Phase 3b, Open-Label Program of Adefovir Dipivoxil in the Treatment of Patients With Lamivudine-Resistant Chronic Hepatitis B Who Have Limited Treatment Options
The purpose of this early access protocol is to provide access to adefovir dipivoxil prior to its commercial availability to people with lamivudine-resistant chronic hepatitis B who have limited treatment options.
Read the detailed description
Due to the considerable unmet medical need of patients with chronic hepatitis B, Gilead has initiated an early access program to make its investigational drug, adefovir dipivoxil 10 mg, available to those patients with lamivudine-resistant chronic hepatitis B at risk of disease progression. Protocol GS-01-550 provides access to patients with lamivudine-resistant hepatitis B virus who are in need of an alternative treatment to suppress HBV DNA replication and prevent progressive liver disease.
- Conditions
- Chronic Hepatitis B
- Being tested
- Adefovir Dipivoxil
- Keywords
- Hepatitis B, Chronic
- Medical subject headings
- Hepatitis B, Chronic
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Adefovir DipivoxilDrug
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Aug 2002 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Chronic Hepatitis BStudies of the same condition, open and under way.
- More trials run by Gilead SciencesThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Expanded access
Sponsor and investigators
- Lead sponsor
- Gilead Sciences
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00042393
- Sponsor's protocol ID
- GS-01-550
- Status last verified
- Jan 2014
- First submitted
- 27 Jul 2002
- Last updated
- 7 Jan 2014
- Results posted
- No
Publications
Benhamou Y, Bochet M, Thibault V, Calvez V, Fievet MH, Vig P, Gibbs CS, Brosgart C, Fry J, Namini H, Katlama C, Poynard T. Safety and efficacy of adefovir dipivoxil in patients co-infected with HIV-1 and lamivudine-resistant hepatitis B virus: an open-label pilot study. Lancet. 2001 Sep 1;358(9283):718-23. doi: 10.1016/s0140-6736(01)05840-8.
PubMed 11551579Mutimer D, Feraz-Neto BH, Harrison R, O'Donnell K, Shaw J, Cane P, Pillay D. Acute liver graft failure due to emergence of lamivudine resistant hepatitis B virus: rapid resolution during treatment with adefovir. Gut. 2001 Dec;49(6):860-3. doi: 10.1136/gut.49.6.860.
PubMed 11709523Mutimer D, Pillay D, Shields P, Cane P, Ratcliffe D, Martin B, Buchan S, Boxall L, O'Donnell K, Shaw J, Hubscher S, Elias E. Outcome of lamivudine resistant hepatitis B virus infection in the liver transplant recipient. Gut. 2000 Jan;46(1):107-13. doi: 10.1136/gut.46.1.107.
PubMed 10601065Perrillo R, Schiff E, Yoshida E, Statler A, Hirsch K, Wright T, Gutfreund K, Lamy P, Murray A. Adefovir dipivoxil for the treatment of lamivudine-resistant hepatitis B mutants. Hepatology. 2000 Jul;32(1):129-34. doi: 10.1053/jhep.2000.8626.
PubMed 10869300Perrillo R, Schiff E, Hann H-W L, Buti M, Strasser S, Watkins KM, Moorat AE, Woessner MA, Vig P, Brosgart CL, Bourne EC, and Atkins MC. The addition of adefovir dipivoxil to lamivudine in decompensated chronic hepatitis patients with YMDD variant HBV and reduced response to lamivudine preliminary 24 week results. 2001. Hepatology. 34(4 Pt 2):349A. Abstract 708.
Schiff E, Neuhaus P, Tillman H, Samuel D, Terrault N, Marcellin P, et al. Safety and efficacy of adefovir dipivoxil for the treatment of lamivudine resistant HBV in patients post liver transplantation. Hepatology 2001 Oct;34 (4, Pt2):446A(Abstract 1098).
Das K, Xiong X, Yang H, Westland CE, Gibbs CS, Sarafianos SG, Arnold E. Molecular modeling and biochemical characterization reveal the mechanism of hepatitis B virus polymerase resistance to lamivudine (3TC) and emtricitabine (FTC). J Virol. 2001 May;75(10):4771-9. doi: 10.1128/JVI.75.10.4771-4779.2001.
PubMed 11312349Peters M, Hann HW, Martin P, Heathcote E, Buggisch P, Moorat AE, et al. Adefovir dipivoxil (ADV) alone and in combination with lamivudine (LAM) supresses LAM-resistant hepatitis B virus (HBV) replication: 16 week interim analysis. Journal of Hepatology. 6(suppl 1): 6-7. 2002 April.
Study at a glance
From the registry record, last updated by the sponsor on 7 Jan 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 3b, Open-Label Program of Adefovir Dipivoxil in the Treatment of Patients With Lamivudine-Resistant Chronic Hepatitis B Who Have Limited Treatment Options
- ClinicalTrials.gov ID
- NCT00042393
- Acronym / sponsor ID
- GS-01-550
- Conditions
- Chronic Hepatitis B
- Keywords
- Hepatitis B, Chronic
- Study type
- Expanded access
- Recruitment status
- Approved For Marketing
- Lead sponsor
- Gilead SciencesIndustry (pharma, biotech, devices)
- First posted
- 1 Aug 2002 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this early access protocol is to provide access to adefovir dipivoxil prior to its commercial availability to people with lamivudine-resistant chronic hepatitis B who have limited treatment options.
Detailed description
Due to the considerable unmet medical need of patients with chronic hepatitis B, Gilead has initiated an early access program to make its investigational drug, adefovir dipivoxil 10 mg, available to those patients with lamivudine-resistant chronic hepatitis B at risk of disease progression. Protocol GS-01-550 provides access to patients with lamivudine-resistant hepatitis B virus who are in need of an alternative treatment to suppress HBV DNA replication and prevent progressive liver disease.
Study design
Who may qualify
- Ages
- 16 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (11 listed)
- =/> 16 years of age (or minimum age required in a given country).
- Prior lamivudine therapy for a cumulative period of > 24 weeks or genotypic evidence of lamivudine resistance.
- Clinical evidence of lamivudine-resistant hepatitis B defined as positive serum hepatitis B virus (HBV) DNA greater than or equal to 10^6 copies/mL (PCR assay) and ALT greater than or equal to 1.2 X upper limit of normal (ULN) within 4 weeks of screening despite ongoing therapy with lamivudine.
- Treating physician feels that the patient is at risk for disease progression.
- Screening laboratory values measured as follows, within 28 days prior to the baseline visit:
Key exclusion criteria (6 listed)
- Patients with any serious or active medical or psychiatric illness that, in the opinion of the investigator, would interfere with patient treatment, assessment, or compliance with the protocol or dosing requirements.
- Patients with hypersensitivity to any of the components of the drug product.
- Currently receiving nephrotoxic drugs (with the exception of cyclosporine or tacrolimus in patients post liver transplantation) such as aminoglycosides (e.g., amikacin, gentamicin, kanamycin, neomycin, netilmicin, streptomycin, tobramycin), conventional amphotericin B, intravenous (IV) vancomycin, cidofovir, IV foscarnet, cisplatin, or IV pentamidine OR competitors of renal excretion such as probenecid and sulfinpyrazone. These agents must be discontinued at least 7 days prior to starting treatment with adefovir dipivoxil.
- Currently enrolled in another clinical trial of adefovir dipivoxil.
- HIV and HBV co-infected patients receiving tenofovir disoproxil fumarate [Viread(R)] for their HIV disease.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Adefovir Dipivoxil | Drug | – |
Primary outcome
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 7 Jan 2014.
- Background: PubMed 11551579Benhamou Y, Bochet M, Thibault V, Calvez V, Fievet MH, Vig P, Gibbs CS, Brosgart C, Fry J, Namini H, Katlama C, Poynard T. Safety and efficacy of adefovir dipivoxil in patients co-infected with HIV-1 and lamivudine-resistant hepatitis B virus: an open-label pilot study. Lancet. 2001 Sep 1;358(9283):718-23. doi: 10.1016/s0140-6736(01)05840-8.
- Background: PubMed 11709523Mutimer D, Feraz-Neto BH, Harrison R, O'Donnell K, Shaw J, Cane P, Pillay D. Acute liver graft failure due to emergence of lamivudine resistant hepatitis B virus: rapid resolution during treatment with adefovir. Gut. 2001 Dec;49(6):860-3. doi: 10.1136/gut.49.6.860.
- Background: PubMed 10601065Mutimer D, Pillay D, Shields P, Cane P, Ratcliffe D, Martin B, Buchan S, Boxall L, O'Donnell K, Shaw J, Hubscher S, Elias E. Outcome of lamivudine resistant hepatitis B virus infection in the liver transplant recipient. Gut. 2000 Jan;46(1):107-13. doi: 10.1136/gut.46.1.107.
- Background: PubMed 10869300Perrillo R, Schiff E, Yoshida E, Statler A, Hirsch K, Wright T, Gutfreund K, Lamy P, Murray A. Adefovir dipivoxil for the treatment of lamivudine-resistant hepatitis B mutants. Hepatology. 2000 Jul;32(1):129-34. doi: 10.1053/jhep.2000.8626.
- BackgroundPerrillo R, Schiff E, Hann H-W L, Buti M, Strasser S, Watkins KM, Moorat AE, Woessner MA, Vig P, Brosgart CL, Bourne EC, and Atkins MC. The addition of adefovir dipivoxil to lamivudine in decompensated chronic hepatitis patients with YMDD variant HBV and reduced response to lamivudine preliminary 24 week results. 2001. Hepatology. 34(4 Pt 2):349A. Abstract 708.
- BackgroundSchiff E, Neuhaus P, Tillman H, Samuel D, Terrault N, Marcellin P, et al. Safety and efficacy of adefovir dipivoxil for the treatment of lamivudine resistant HBV in patients post liver transplantation. Hepatology 2001 Oct;34 (4, Pt2):446A(Abstract 1098).
- Background: PubMed 11312349Das K, Xiong X, Yang H, Westland CE, Gibbs CS, Sarafianos SG, Arnold E. Molecular modeling and biochemical characterization reveal the mechanism of hepatitis B virus polymerase resistance to lamivudine (3TC) and emtricitabine (FTC). J Virol. 2001 May;75(10):4771-9. doi: 10.1128/JVI.75.10.4771-4779.2001.
- BackgroundPeters M, Hann HW, Martin P, Heathcote E, Buggisch P, Moorat AE, et al. Adefovir dipivoxil (ADV) alone and in combination with lamivudine (LAM) supresses LAM-resistant hepatitis B virus (HBV) replication: 16 week interim analysis. Journal of Hepatology. 6(suppl 1): 6-7. 2002 April.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A study testing Adefovir Dipivoxil in people with Chronic Hepatitis B, run by Gilead Sciences.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 11 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 7 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00042393, which also lists 8 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Jan 2014.