Viralym-M (ALVR105): A multi-virus specific T cell therapy (VST) targeting five devastating viral pathogens

Viralym-M (ALVR105)

Life-threatening viral infections and diseases post transplantation

The immune systems of individuals undergoing potentially life-saving transplantations – the two most common types of which are allogeneic hematopoietic stem cell transplant (HSCT) and solid organ transplants (SOT) – are suppressed or eliminated to prevent rejection of the transplanted cells or organs, leaving the patient highly prone to devastating viral infections or diseases, which can cause end-organ damage and mortality.

Allogeneic HSCT conditioning regimens often require the complete elimination of a patient’s own stem cells leaving patients without a functioning immune system and in a severely immunocompromised state post HSCT. For 90% of allogeneic HSCT patients, their suppressed immune system allows viruses that were previously in a latent state to reactivate, with more than 60% of HSCT patients experiencing reactivation of more than one potentially fatal virus.

Currently, there are no approved therapies for most viral infections in the post-transplant setting, with the standard of care treatments having limited efficacy and associated with significant toxicity.

Bridging an Immune System by Viralym-M

Viralym-M is designed to play an important role in providing bridging immunity between conditioning and reconstitution of their immune systems. Restoring immunity during this time of severe immune compromise, Viralym-M may substantially reduce or prevent virus-associated morbidity and mortality, and dramatically improve patient outcomes.

Viralym-M has the potential to fundamentally transform care for transplant patients, as well as individuals who are at high risk for opportunistic viral infections by reducing or preventing disease morbidity and dramatically improving patient outcomes.

Viralym-M is Designed to Treat and Prevent Viral Diseases Until the Patient’s Own Immune System Recovers

(a) Post 100 day data for proportion of patients with viral detection is from Huang, et al., as Hill et al. only measured out to 100 days. 1. Kedia et al., J Stem Cell Res Ther 2013. 2. Ison, Hirsch. Clin Microbiol Rev. 2019. 3. Hill et al, Blood 2017. 4. Huang et al, Biol Blood Marrow Trans 2017. 5. Stern L et al. Front Immunol. 2018;9:1-18. 6. Hill CID 2018.

Clinical Studies and Development Program

Viralym-M was evaluated in a Phase 2 open label proof-of-concept study, in which 58 allogeneic HSCT patients with treatment-refractory infections were treated with Viralym-M. 93% of patients who received Viralym-M demonstrated a predefined clinical response. Treatment with Viralym-M was generally well-tolerated. These interim trial results were published in the Journal of Clinical Oncology in August 2017.

Viralym-M has been granted PRIority MEdicines (PRIME) and Orphan Drug (ODD) designations from the EMA and Regenerative Medicine Advanced Therapy (RMAT) designation from the U.S. Food and Drug Administration (FDA).

To explore the clinical benefits of Viralym-M, we plan to initiate a total of six Phase 3 pivotal and Phase 2 proof-of-concept trials in immunocompromised HSCT and SOT patients for the treatment and prevention of life-threatening viral diseases in children and/or adults.

Learn more about Viralym-M clinical trials here.

Our Pipeline

Our allogeneic, off-the-shelf VST therapy candidates target 12 different devastating viruses to treat and prevent life-threatening viral diseases.

Expanded Access

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AlloVir is the Global Leader in Developing VST Immunotherapies

We develop highly innovative allogeneic, off-the-shelf VST therapy candidates designed to treat or prevent devastating viral infections and diseases.

Our Pipeline

Our allogeneic, off-the-shelf, VST therapy candidates target 12 different devastating viruses to treat or prevent life-threatening viral diseases.

Our Platform

Our proprietary platform develops allogeneic, off-the-shelf VSTs designed to restore immunity in patients with T cell deficiencies.

Our People

Our founders have a singular vision: to serve patients at risk of the devastating consequences of severe viral infections and diseases.