Anti-viral drug discovery and development company ReViral has commenced a Phase 1 clinical trial for RV521, an orally active, small-molecule inhibitor of RSV fusion.

RSV infection has been an unmet medical need and RV521 is being developed to treat RSV in patients suffering with severe disease, including neonates, the elderly, the immunocompromised and those with underlying cardiovascular or respiratory disease.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

ReViral COO Rachel Harland said: “We’re very pleased to have initiated our Phase 1 study on RV521 and eagerly await the demonstration that the drug is suitable for progression to further clinical studies in infected patients.”

ReViral CEO Eddy Littler said: “The progression of RV521 to the clinic is a significant achievement for the company and marks a major step forward in developing a potential new therapy against RSV.

"We’re also progressing other exciting early-stage programmes against RSV, based on different mechanisms than that of RV521."

ReViral’s RV521 Phase 1 clinical trial will analyse the safety, tolerability, and pharmacokinetics of single-ascending and multiple-ascending oral doses of RV521 in addition to the impact of food on drug absorption.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

The study will see the enrolment of up to 110 healthy volunteers.

"The progression of RV521 to the clinic is a significant achievement for the company and marks a major step forward in developing a potential new therapy against RSV."

Every year, in the US, RSV leads to 57,527 hospitalisations among children younger than five years old, 2.1 million outpatient visits among children younger than five years old, 177,000 hospitalisations and 14,000 deaths among adults older than 65 years.

In preclinical studies, RV521 has been shown to potently restrict RSV replication in both cultured human cells and in in-vivo models.

Furthermore, during in-vitro studies, only low levels of virus resistance to RV521 were observed.

Pre-clinical studies indicated that RV521 has good exposure and low toxicity. Altogether these observations support the potential of RV521 in the treatment of infection in all susceptible populations.


Image: Electron micrograph depicting RSV pathogen. Photo: courtesy of Centers for Disease Control and Prevention's Public Health Image Library (PHIL).

Clinical Trials Arena Excellence Awards - Nominations Closed

Nominations are now closed for the Clinical Trials Arena Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact

Excellence in Action
Science 37 has won the Research and Development Award in the Site Innovation category for its FDA inspected Direct-to-Patient Site model, delivering nationwide access, faster enrollment and higher retention. Explore how its virtual-first, in home approach is reshaping trial operations and accelerating time to data-driven decisions..

Discover the Impact