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tobevibart + elebsiran + tenofovir disoproxil fumarate
- Development stage
- Unknown
- Lead developer
- Vir Biotechnology
- Modality
- Small Molecules, Chemically Modified siRNA → Small Interfering RNA (siRNA) → Small RNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics, Conjugated siRNA → Small Interfering RNA (siRNA) → Small RNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics, Monoclonal Antibodies → Antibody-Based Therapeutics
- Administration
- Subcutaneous (tobevibart And Elebsiran), Oral (tenofovir Disoproxil Fumarate)
01
Overview
The combination of **tobevibart**, **elebsiran**, and **tenofovir disoproxil fumarate** is an investigational therapeutic regimen targeting chronic hepatitis delta virus (HDV) infection, typically in patients co-infected with hepatitis B virus (HBV). Tobevibart is a broadly neutralizing monoclonal antibody that binds to the antigenic loop of hepatitis B surface antigen (HBsAg), blocking viral entry into hepatocytes and neutralizing both HBV and HDV. Elebsiran is a small interfering RNA (siRNA) that targets a conserved region of the HBV genome, suppressing expression of HBsAg and reducing viral replication. Tenofovir disoproxil fumarate is a nucleotide analogue reverse transcriptase inhibitor, inhibiting HBV replication. The triple therapy is designed to suppress viral replication, promote normalization of liver enzymes, reduce HBsAg levels, and potentially achieve functional cure of HBV/HDV infection. Preclinical and clinical studies support additive antiviral effects of tobevibart and elebsiran, and tenofovir is used as background therapy for HBV suppression[1][2][3][4][6][7].
- Brand names
- none known for this triple combination; individual drugs may have brand names (e.g., tenofovir disoproxil fumarate is sold as "Viread")
02
Targets
HBV RNA (Hepatitis B virus RNA)HBV Pol (Hepatitis B virus polymerase)HBsAg (Hepatitis B surface antigen)
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