Our mission is to develop a safe, self-administered, and storable drug that activates the body's immune response against multiple virus families. We seek to strengthen EU healthcare systems to be better protected against future pandemic threats.

About NoVir

In recent years, the growing spread of viruses like the Ebola virus, mpox and especially the Covid-19 pandemic posed a serious threat to societies. To avert a new pandemic crisis, precautions need to be taken. This is particularly important given that climate change, increased mobility, and urbanisation lead to a higher risk of future pandemics.

The NoVir project will contribute significantly to future pandemic prevention measures. It fosters the further development of ETH47, a novel protective therapeutic that prevents virus infections. The mRNA-based compound focuses on the body’s innate immune response instead of targeting a specific virus. ETH47 stimulates the production of interferon lambda (IFNλ), a protein crucial for antiviral immunity at mucosal surfaces. This innovative approach enables ETH47 to exhibit broader antiviral activity against a multitude of viral families. ETH47 is currently formulated as an intranasal spray, enabling direct delivery to the mucosal surfaces of the airway - the entry portal of respiratory viruses. Building on its proven local efficacy, ETH47 holds strong potential for indication expansion to other delivery routes. This adaptability positions ETH47 as a versatile platform candidate capable of addressing a broad range of viral diseases beyond respiratory infections.

NoVir paves the way for a more sustainable and effective strategy in managing viral infections.

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start
May 2025
duration
24 months
budget
~ €10 million
partners
4

Challenges

The adaptation of vaccines to new pandemic viruses is time-consuming
Adapting vaccines to newly emerging viral strains takes a considerable amount of time. Therefore, EU member states need additional strategies that can be deployed immediately to fill the gap until effective vaccines are available. Furthermore, they need to ensure that patient populations for whom vaccinations are ineffective due to immunocompromised or immunosuppressed status are protected.
Drug-resistant variants of established strains make antiviral therapies less effective
Until now, antiviral therapeutics have only been available for certain virus families. However, the effectiveness of these antivirals can be limited due to emergence of resistant strains, especially during long-term use. This can render virus-specific therapies less effective or even obsolete.

Objectives

Confirm antiviral activity against a wide range of viral pathogens
Protection against viral threats both before and after exposure
Demonstrate the efficacy of ETH47 against respiratory, hepatotropic, and contact-transmitted viruses that target different tissues via distinct routes of infection
Advance ETH47 in clinical challenge studies to establish antiviral efficacy in humans
Assess synergistic effects of ETH47 with existing antiviral therapeutics
Bring ETH47 closer to regulatory approval and deployment

Objectives

Approach

Current antivirals rely on targeting viral proteins which results in high specificity for certain virus families. In contrast to these virus-targeting therapies, ETH47 acts at the viral entry portal into the host, regardless of the type of pathogen. For respiratory viruses, ETH47 works directly at the mucosal surfaces where viruses first attempt to invade. The LNP-formulated mRNA delivers genetic instructions that enable cells to produce interferon lambda (IFNλ) – a naturally occurring immune messenger protein that alerts neighbouring cells to viral threat. This activates hundreds of protective genes called interferon-stimulated genes (ISGs), each contributing different antiviral functions, from blocking viral replication to degrading viral genetic material. Together, they create a coordinated defense system that establishes an antiviral state in cells. ETH47’s broad and multi-layered mechanism of action reduces the likelihood of drug resistance and enables a high degree of adaptability.

Consortium

Ethris GmbH

Ethris, a clinical-stage biotechnology company, has paved a new path from genes to therapeutic proteins, using its proprietary RNA and lipidoid nanoparticle technology platform to discover, design and develop innovative therapies. With more than a decade as an mRNA pioneer, Ethris is a global leader in delivering stabilised mRNAs directly to the respiratory system via optimised formulation and nebulisation technologies. The company is rapidly advancing its mRNA pipeline of immuno-modulation, protein replacement therapies, and differentiated vaccines, with the ultimate goal of improving patients’ lives.

Within NoVir, Ethris is responsible for the organizational framework. They will provide guidance to enable a smooth project workflow and ensure that objectives and milestones will be met in time. Furthermore, Ethris will be sponsoring a clinical trial to demonstrate antiviral prophylactic and therapeutic activity of ETH47 on influenza A virus inoculated healthy adults.

Partner Information

Team members

Senior Grant Manager and Project Coordinator
CMO at Ethris, leading the clinical development in this project.
CEO and co-founder of ETHRIS GmbH functioning as the overall project lead for ETHRIS, as well as the consortium.
Technische Universität München (TUM)

The Institute of Virology at TUM is part of the School of Medicine and combines basic research on viral pathogens with patient-focused diagnostic and translational approaches. State-of-the-art research facilities enable work with a variety of viruses of the risk groups 1-3 in cell culture and animal models.

Within NoVir, TUM will use in vitro and in vivo infection models to assess the broad applicability of ETH47 against various virus families with epidemic and pandemic potential that infect the host via different routes and show distinct tissue tropism and pathogenesis. This will include respiratory viruses, viruses causing hemorrhagic fevers, and contact-transmitted viruses. Furthermore, we will investigate whether ETH47 has potential additive or synergistic effects with existing approved antiviral drugs and its influence on the development of drug resistance.

Partner Information

European Research and Project Office GmbH (EURICE)

Founded in 2000, the European Research and Project Office GmbH (EURICE) is one of Europe’s largest project management offices. With more than 25 years of experience, we provide comprehensive support services for managing large-scale research and innovation (R&I) project consortia. Furthermore, EURICE has extensive expertise and a proven track-record in steering collaborative knowledge valorisation and innovation management, including intellectual asset management as well as stakeholder engagement, science communication and public outreach.

We accompany researchers and innovative companies through the entire life cycle of a project – from the first idea to successful project completion – and beyond.

In NoVir, EURICE will assist the consortium in project management and coordination. The team will initiate and drive dissemination and communication activities to ensure broad project visibility. Furthermore, EURICE will advise on IP-related challenges and opportunities.

Partner Information

Team members

Senior Project Manager
Senior Research and Innovation Manager
Communications Manager
Aarhus Universitet

The Department of Biomedicine at AU, situated within the School of Medicine, brings together fundamental research in innate immunology and viral pathogens with clinically oriented diagnostics and translational approaches. At AU, experimental investigations focusing on herpesviruses are conducted using both cell culture systems and animal models.

Building on this expertise, AU will employ cutting-edge methodologies and both in vitro and in vivo infection models to comprehensively assess the antiviral efficacy of ETH47 against herpesviruses. These viruses, transmitted through multiple routes, are distinguished by diverse tissue tropisms and complex pathogenic mechanisms, which will be systematically explored within the NoVir project.

Partner Information

Clinical trials

NoVir aims to confirm ETH47’s antiviral efficacy in two clinical studies: The first will assess its protective effect in healthy adults exposed to influenza, while the second will assess the efficacy in rhinovirus challenged patients with asthma, representing the target patient population who is especially at risk for severe respiratory viruses. Beyond clinical testing, NoVir wants to define the breadth of ETH47’s the antiviral effect: Using in vitro and ex vivo models, the researchers will investigate its protective effect against multiple virus families with diverse infection routes including ocular, intravaginal and systemic infections and test the synergistic benefits of ETH47 when combined with existing antiviral treatments.

EU4Health

The EU4Health programme was established in response to the COVID-19 pandemic in 2021. It seeks to foster disease prevention and preparedness against cross-border health threats. Funded with a budget of €4.4 billion, this EU initiative contributes to the further development of European health systems and an improved accessibility of crisis-relevant medical products.

Contact

Dr Silke von Sehlen photo

Contact

Dr Silke von Sehlen (Senior Project Manager, EURICE GmbH)
Dr Steffen Meyer photo
Dr Steffen Meyer (Project Coordinator, Ethris GmbH)