Hyundai Bioscience has reported that a combination of the niclosamide-based oral antiviral drug candidate, CP-COV03, with anti-inflammatory therapy, dexamethasone, showed to be effective in people with severe Covid-19 in a study.

Developed by the company’s stakeholder CNPharm, CP-COV03 is a ‘host-directed’ therapy that targets the host cell against the current vaccines and antiviral treatments that act on the virus.

Discover B2B Marketing That Performs

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

Find out more

Niclosamide, an anthelmintic therapy, is the active component of CP-COV03 and is claimed to work against several viral diseases.

A steroid drug, dexamethasone is used to treat people with severe Covid-19.

In an efficacy analysis carried out by the company at Korea Research Institute of Bioscience and Biotechnology (KRIBB) on Covid-19-infected hamsters, oral dose of CP-COV03 plus dexamethasone offered 2.1 times increased efficacy than that observed with dexamethasone alone.

The latest study is the first to validate the combined effect of oral antiviral with dexamethasone as a combination therapy for Covid-19.

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

If CP-COV03 receives emergency use authorization (EUA) in the clinical stage, the combination treatment could potentially be used in patients with severe disease.

Hyundai Bioscience Research Center director Dr Geun-Woo Jin said: “Dexamethasone, being a steroid drug, has a side effect of weakening immunity and we need to find a combination treatment that will give antiviral efficacy instead of weakened immunity.

“CP-COV03 is the best partner for combination with Dexamethasone.”

On concluding the Phase I clinical trial of CP-COV03 for Covid-19, the company plans to seek Korea Food and Drug Administration approval for initiating a Phase II trial of the drug for flu.

Subsequently, Hyundai Bioscience plans to obtain EUA for the drug within the first half of next year.

In June last year, the UK Government granted authorisation to use dexamethasone to treat Covid-19 on the National Health Service (NHS).

Pharmaceutical Technology Excellence Awards - Nominations Closed

Nominations are now closed for the Pharmaceutical Technology 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
NorthWest EHealth has won three 2025 Pharmaceutical Technology Excellence Awards for Innovation, Safety and Diversity. Explore how its ConneXon platform is transforming SAE reporting and real-time safety oversight, while FARSITE delivers socio-economically inclusive recruitment to boost trial efficiency, data integrity and regulatory-grade representativeness.

Discover the Impact