Celltrion Group announced its results for its cocktail therapy candidates including neutralisation data against the Omicron variant (B.1.1.529).
The Phase I clinical trial is a randomised, double- blind and placebo- controlled trial designed to evaluate the safety, tolerability and pharmacokinetics of CT-P63 in 24 healthy subjects in Poland. The study met its primary objectives with data showing CT-P63 to be safe and well tolerated, with no significant drug- related adverse events (AEs), a released said.
In an experiment conducted in partnership with the National Institutes of Health (NIH), CT-P63 showed strong neutralising activity against the Omicron variant based on structural analysis by X- ray crystallography and neutralisation data from pseudo- virus testing. Celltrion anticipates results of the SARS-CoV-2 Omicron variant assays and animal model studies by the end of the first quarter this year.
In order to elicit potent neutralising antibody response against the new emerging variants, Celltrion previously identified a total of 38 potent neutralising antibodies against SARS-CoV-2 in which antibody candidate No. 32 (CT-P63) produced high neutralisation titres against new emerging strains. CT-P63 has previously been demonstrated to have neutralising activity against the most common variants, including the Alpha, Beta, Gamma and Delta variants.
“The positive results demonstrate the potential of our cocktail therapy to retain neutralising ability against the Omicron variant” said Dr. HoUng Kim, Ph.D., Head of Medical and Marketing Division at Celltrion Healthcare. “We are confident that our antibody platform including Regkirona and CT-P63 will provide significant benefit for patients with COVID-19. Regkirona is given to a patient intravenously, so the drug could effectively treat patients hospitalised with COVID-19 at an early stage, while the nebulised cocktail therapy could address patients’ unmet needs for at- home treatment. We plan to discuss large- scale clinical trial for our nebulised cocktail therapy (CT-P63 in combination with Regkirona™) with regulatory agencies worldwide in the near future.”
Celltrion Healthcare is committed to delivering innovative and affordable medications to promote patients’ access to advanced therapies. Its products are manufactured at state-of-the-art mammalian cell culture facilities, designed and built to comply with the US FDA cGMP and the EU GMP guidelines. Celltrion Healthcare endeavours to offer high-quality cost-effective solutions through an extensive global network that spans more than 110 different countries
CT-P59 was identified as a potential treatment for COVID-19 through screening of antibody candidates and selecting those that showed the highest potency in neutralising the SARS-CoV-2 virus. In vitro and in vivo pre- clinical studies showed that CT-P59 strongly binds to SARS-CoV-2 RBD and significantly neutralises the wild type and mutant variants of concern. In in vivo models, CT-P59 effectively reduced the viral load of SARS-CoV-2 and inflammation in lung. Results from the global phase I and phase II/III clinical trials of CT-P59 demonstrated a promising safety, tolerability, antiviral effect and efficacy profile in patients with mild-to-moderate symptoms of COVID-19.2 The EC granted marketing authorisation for Celltrion’s regdanvimab following positive opinion by the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) in November 2021
CT-P63 is a monoclonal antibody targeting SARS-CoV-2 spike receptor binding domain (RBD) as a treatment for COVID-19 infection. CT-P63 is currently being developed as a potential treatment for SARS-CoV-2 infection.