Trial Comparing Two Strategies of Vaccination Against Hepatitis B in HIV-infected Patients Non Responding to Primary Immunization (B-BOOST)
B-BOOST
Open-label, Randomized, and Multicenter Phase III Clinical Trial Comparing Immunogenicity of Double-dose (40 µg at S0, S4 and S24), Versus Standard Dose Vaccination (20 µg at S0, S4 and S24), Against Hepatitis B Virus in HIV-1-infected Patients Without Any Previous Immune Response After Primary Immunization Plus One Single Boost
2 other identifiers
interventional
178
1 country
1
Brief Summary
HIV infected patients exposed to Hepatitis B virus are more susceptible to develop a chronic and severe liver disease, with a major risk of cirrhosis and liver cancer. However, immune response to standard Hepatitis B vaccination is decreased in HIV-infected patients, compared to non HIV-infected individuals, and, in case of response, its durability has to be carefully followed up. This study compares the efficacy of two strategies of revaccination in HIV-infected patients who didn't respond to previous hepatitis B vaccination. Failure is defined by two conditions: non response to the primary immunization (2 to 4 single-dose injections received before the screening visit) and failure to a single 20 µg boost before being included in the study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started May 2008
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 29, 2008
CompletedStudy Start
First participant enrolled
May 1, 2008
CompletedFirst Posted
Study publicly available on registry
May 2, 2008
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2011
CompletedStudy Completion
Last participant's last visit for all outcomes
February 1, 2013
CompletedAugust 12, 2013
August 1, 2013
3.6 years
April 29, 2008
August 8, 2013
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
rate of HIV-infected patients who seroconvert one month after the last vaccination. Seroconversion is defined as anti-HBs titers equal or above 10 mUI per ml
one month after the last vaccination (week 28)
Secondary Outcomes (2)
According to the vaccine strategy (single-dose or double-dose), comparison of AbHBs titers, permanence of humoral response, intensity of clinical and biological events, and predicting factors related to seroconversion
one month after the last injection ( week 28) and month 18
immunological substudy: to understand genetic link between some alleles of HLA-DR and non-response to immunization
at D0
Study Arms (2)
A
ACTIVE COMPARATORGenHevac-B 20 microgram intramuscular use at M0, M1 and M6
B
EXPERIMENTALGenHevac-B 40 microgram intramuscular use at M0, M1 and M6
Interventions
1 intramuscular injection of Genhevac-B® 20μg on day zero, month 1,and month 6
Eligibility Criteria
You may qualify if:
- HIV-1 infection
- T CD4 cell count number above 200 /mm3
- History of 2 to 4 injections of Hepatitis B vaccine, at any time in the past
- No history of Hepatitis B vaccination with a double-dose schedule
- No response to Hepatitis B vaccination: serology Hepatitis B negative (AgHBs, AbHBs and AbHBc negative) the previous twelve months and at the screening visit
- AbHBs titers below 10 IU/ml four weeks after the boost of Genhevac-B® 20μg preceding the randomization
- unchanged ARV treatment for the last 2 months for patients who are receiving ARV at the screening visit
- Undetectable HIV RNA for the last 6 months and on-going ARV for any patients with T CD4 cell level below 350/mm3
- HIV-1 plasma load below 100 000 copies per ml for patients without ARV
- Negative pregnancy test at the screening visit, and immediately before the Genhevac-B® 20 µg boost injection preceding the randomization
You may not qualify if:
- Acute cytolysis in the last 3 months with transaminases equal or above 5 times the upper limit of normal for HIV-HCV coinfected patients, or transaminases equal or above 2 times the upper limit of normal for non coinfected patients
- History of hypersensitivity to any component of GenHevac-B
- acute opportunistic infection treated the month before the screening visit
- Hemopathy or solid-organ cancer
- Prothrombin factor equal or below 50% and/or platelets equal or below 50 000 per mm3
- Immunosuppressive treatment or general corticotherapy (equal or above 0,5 mg per kg per day during at least 7 days) in the last 6 months before the screening visit
- Immunomodulating treatment (interferon, interleukine-2,…) in the last 6 months before the screening visit
- Splenectomy
- Decompensated cirrhosis (Child Pugh B or C)
- Renal failure (creatinine clearance below 50 ml/mn)
- Other severe immunocompromised condition not related to HIV infection (solid-organ transplantation, chemotherapy in the last 6 months,….)
- Any participation to another clinical trial plan until Week 28
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- ANRS, Emerging Infectious Diseaseslead
- MCM Vaccines B.V.collaborator
Study Sites (1)
Centre de Soins de l'Infection par le VIH NHC, Hôpitaux Universitaires Strasbourg, 1 place de l'hôpital
Strasbourg, 67091 Cedex, France
Related Publications (1)
Rey D, Piroth L, Wendling MJ, Miailhes P, Michel ML, Dufour C, Haour G, Sogni P, Rohel A, Ajana F, Billaud E, Molina JM, Launay O, Carrat F; ANRS HB04 B-BOOST study group. Safety and immunogenicity of double-dose versus standard-dose hepatitis B revaccination in non-responding adults with HIV-1 (ANRS HB04 B-BOOST): a multicentre, open-label, randomised controlled trial. Lancet Infect Dis. 2015 Nov;15(11):1283-91. doi: 10.1016/S1473-3099(15)00220-0. Epub 2015 Aug 6.
PMID: 26257021DERIVED
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
David Rey, MD
Hôpital civil, Strasbourg, France
- STUDY CHAIR
Fabrice Carrat, MD
Inserm U707 Paris France
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER GOV
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 29, 2008
First Posted
May 2, 2008
Study Start
May 1, 2008
Primary Completion
December 1, 2011
Study Completion
February 1, 2013
Last Updated
August 12, 2013
Record last verified: 2013-08