Biopharmaceutical company PTC Therapeutics has initiated enrolment in the second stage of a Phase II/III FITE19 clinical trial of its investigational drug, PTC299, in Covid-19 patients.

An oral small molecule, PTC299 inhibits the cellular enzyme dihydroorotate dehydrogenase.

Discover B2B Marketing That Performs

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

Find out more

With its dual mechanism of action, it can potentially hinder viral replication and attenuate the uncontrolled inflammatory response that follows infection.

Currently, the second stage of the trial is enrolling in multiple centres outside of the US.

The randomised, double-blind, placebo-controlled, multi-centre trial will assess the efficacy and safety of PTC299 in hospitalised Covid-19 patients.

PTC noted that the study is conducted in two stages. The first stage had a smaller cohort of 40 participants followed by an interim safety analysis before enrolling the larger cohort of around 340 participants in the second stage.

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

Analysing the clinical efficacy of PTC299 versus placebo assessed by time to respiratory improvement in adults hospitalised with Covid-19 will be the study’s primary endpoint.

PTC Therapeutics CEO Stuart Peltz said: “Completion of the first stage of the FITE19 trial is an important milestone that triggers the final stage of the trial to begin.

“PTC299 has a unique mechanism of action that has the potential to be an effective Covid-19 treatment for both at-home and hospitalised patients and should be effective against the wildtype virus as well as viral variants.”

Earlier this month, PTC Therapeutics announced plans to hold talks with the US Food and Drug Administration (FDA) on approval after the latest Phase II Study 045 of its drug, Translarna (ataluren), failed to significantly improve dystrophin expression in patients with nonsense mutation Duchenne muscular dystrophy.

In a separate development, Biophytis is set to start patient recruitment in France and Belgium for Part 2 of its COVA Study of Sarconeos (BIO101) as a potential treatment for acute respiratory failure linked to Covid-19.

On obtaining the Data Monitoring Committee (DMC) recommendation to start the recruitment for Part 2, approval was obtained from regulatory agencies in Brazil and the US for most clinical centres in these countries.

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
YPrime won the Innovation award for AI in Clinical Trials and the Environmental award for Sustainable Trials, thanks to its eCOA, IRT and eConsent platforms. Explore how purpose-built AI, paperless workflows and circular hardware practices are reshaping timelines, data quality and ESG performance in clinical research.

Discover the Impact