Skip to main content
European Commission logo print header

THERVACB: A THERAPEUTIC VACCINE TO CURE HEPATITIS B

Project description

Novel therapeutic vaccine to cure hepatitis B

Spontaneous resolution of hepatitis b virus (HBV) infection is characterised by neutralising antibodies and HBV-specific T cell responses, elements which are lacking in chronic HBV infection. The EU-funded TherVacB project aims to overcome immune tolerance in chronic HBV infection and the virus’s resistance to cure. The interdisciplinary consortium will employ a heterologous prime-boost therapeutic vaccination scheme with proven efficacy in preclinical models of hepatitis B to target and activate B and T cell responses; thereby, TherVacB hopes to produce vaccine components and prepare a first-in-human application. To provide a clinical proof of concept of the therapeutic hepatitis B vaccine in patients with chronic hepatitis B, the consortium will establish a patient registry and perform a multicentre phase Ib/IIa clinical trial of the vaccine's safety and potency to induce immune control of chronic HBV infection.

Objective

Experts in virology, immunology and clinical hepatitis B patient care with an excellent research and translational track record in hepatitis B virus (HBV)-host interaction form the interdisciplinary TherVacB consortium. They jointly tackle the major challenges in HBV therapy – the virus’s resistance to cure. TherVacB aims at breaking immune tolerance in chronic HBV infection and achieving HBV cure. Occurrence of neutralizing antibodies and HBV-specific T cell responses characterize spontaneous resolution of HBV infection that are lacking in chronic infection. We will use our IP-protected heterologous prime-boost therapeutic vaccination scheme with proven efficacy in preclinical models of hepatitis B to target and activate B and T cell responses. Two protein prime injections with clinically approved, adjuvanted particulate HBV S and core protein antigens shall induce neutralizing antibodies and prime T cells that are boosted with an MVA vector expressing HBV core, S, L and polymerase antigens covering >95% of HBV found worldwide. Having secured significant funding and partnerships to obtain GMP-produced vaccine components and to prepare a first-in-human application, TherVacB aims at a clinical proof-of-concept of the therapeutic hepatitis B vaccine in patients with chronic hepatitis B. The consortium will establish a patient registry and perform a multi-center phase Ib/IIa clinical trial that aims at proving safety of the therapeutic vaccine and inducing immune control of chronic HBV infection. One study arm will be realized in Tanzania to build up local capacity, because Africa carries a large burden of HBV infection but lacks diagnostic and therapeutic options. An innovative immune monitoring will quantify HBV-specific immunity and define novel biomarkers to predict treatment response. Finally an ethical and an empirical study will evaluate the recruitment of patients by social media which is very effective for infectious diseases that tend to stigmatize patients

Call for proposal

H2020-SC1-BHC-2018-2020

See other projects for this call

Sub call

H2020-SC1-2019-Two-Stage-RTD

Coordinator

HELMHOLTZ ZENTRUM MUENCHEN DEUTSCHES FORSCHUNGSZENTRUM FUER GESUNDHEIT UND UMWELT GMBH
Net EU contribution
€ 4 049 761,25
Address
INGOLSTADTER LANDSTRASSE 1
85764 Neuherberg
Germany

See on map

Region
Bayern Oberbayern München, Landkreis
Activity type
Research Organisations
Links
Total cost
€ 4 049 761,25

Participants (18)