Business Wire

Celltrion accelerates development of nebulised cocktail therapy (CT-P63 in combination with CT-P59) using its antibody platform to tackle new COVID-19 variants

Share

Celltrion Group announced today that the company has accelerated development of a nebulised formulation of its neutralising antibody cocktail treatment, to respond to emerging mutants from SARS-CoV-2.

Targeting newly emerging mutations of SARS-CoV-2 and using its already constructed antibody platform, Celltrion has developed a neutralising antibody cocktail consisting of CT-P63 together with its monoclonal antibody treatment Regkirona (regdanvimab, CT-P59), which was recently approved by the European Commission (EC) for the treatment of COVID-19.

Celltrion enrolled 24 healthy volunteers in its global phase I clinical trial to evaluate the safety, tolerability and pharmacokinetics of CT-P63 and the company anticipates results by the end of the year.

CT-P63 is a monoclonal antibody targeting SARS-CoV-2 spike receptor binding domain (RBD) as a treatment for COVID-19 infection. Celltrion plans to evaluate neutralisation of new emerging variants tailored to specific regions and assess potential escape mutants by using in vitro pseudo-virus assay. After verifying safety results in phase I clinical trial, Celltrion plans to confirm the extensive neutralising capacity of the cocktail therapy with Regkirona and CT-P63 on new variants as a follow up trial, with a nebulised formulation of Regkirona.

“The mutations in Omicron, also known as B.1.1.529, could help the virus evade the body’s immune response and make it more transmissible” said Dr. HoUng Kim, Ph.D., Head of Medical and Marketing Division at Celltrion Healthcare. “Omicron has many mutations in the same regions of the spike protein, however we anticipate CT-P63 to maintain strong neutralising ability against Omicron based on structural analysis by X-ray crystallography and neutralisation data from pseudo-virus testing. By leveraging our antibody platform including Regkirona (CT-P59) and CT-P63, as well as patented formulation, the development of a nebulised cocktail therapy will be accelerated.”

Regkirona has previously demonstrated in vivo efficacy against the most common variants, including the Alpha, Beta, Gamma and Delta variants.

- ENDS -

Notes to Editors:

About Celltrion Healthcare

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. For more information please visit: https://www.celltrionhealthcare.com/en-us.

About regdanvimab (CT-P59)

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-19.1 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.

About nebulised formulation

The nebulised formulation of the monoclonal antibody not only targets SARS-CoV-2 spike receptor binding domain (RBD) and elicit neutralising antibody response but it also has ‘trapping’ mechanism of action and thereby neutralises and traps in mucus with exceptional potency. The muco-trapping antibody platform directly traps the virus in airway mucus, preventing the local spread of the infection, and quickly eliminating the virus from the lungs through the body's natural ability to clear mucus. Nebulised formulation can be readily self-administered by patients, extend critical drug supplies to more patients by reducing the dosage needed, and does not place excessive demands on healthcare staff and infusion clinic space that intravenous (IV) drugs do.

FORWARD LOOKING STATEMENT

Certain information set forth in this press release contains statements related to our future business and financial performance and future events or developments involving Celltrion/Celltrion Healthcare that may constitute forward-looking statements, under pertinent securities laws.

These statements may be identified by words such as “prepares”, “hopes to”, “upcoming”, ”plans to”, “aims to”, “to be launched”, “is preparing, “once gained”, “could”, “with the aim of”, “may”, “once identified”, “will”, “working towards”, “is due”, “become available”, “has potential to”, the negative of these words or such other variations thereon or comparable terminology.

In addition, our representatives may make oral forward-looking statements. Such statements are based on the current expectations and certain assumptions of Celltrion/Celltrion Healthcare's management, of which many are beyond its control.

Forward-looking statements are provided to allow potential investors the opportunity to understand management’s beliefs and opinions in respect of the future so that they may use such beliefs and opinions as one factor in evaluating an investment. These statements are not guarantees of future performance and undue reliance should not be placed on them.

Such forward-looking statements necessarily involve known and unknown risks and uncertainties, which may cause actual performance and financial results in future periods to differ materially from any projections of future performance or result expressed or implied by such forward-looking statements.

Although forward-looking statements contained in this presentation are based upon what management of Celltrion/Celltrion Healthcare believes are reasonable assumptions, there can be no assurance that forward-looking statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Celltrion/Celltrion Healthcare undertakes no obligation to update forward-looking statements if circumstances or management’s estimates or opinions should change except as required by applicable securities laws. The reader is cautioned not to place undue reliance on forward-looking statements.

References

1 Celltrion Data on file

To view this piece of content from cts.businesswire.com, please give your consent at the top of this page.

Contact information

For further information please contact:
Holly Barber
hbarber@hanovercomms.com
+44 (0) 07759 301620

Donna Curran
dcurran@hanovercomms.com
+44 (0) 7984 550312

About Business Wire

For more than 50 years, Business Wire has been the global leader in press release distribution and regulatory disclosure.

Subscribe to releases from Business Wire

Subscribe to all the latest releases from Business Wire by registering your e-mail address below. You can unsubscribe at any time.

Latest releases from Business Wire

Global Tourism Surging Ahead of Economic Growth, With Visits to Hit 30 Billion by 20344.7.2025 02:00:00 EEST | Press release

The World Economic Forum has today published a new report forecasting that the travel and tourism industry is projected to serve 30 billion tourist trips by 2034. Travel and Tourism at a Turning Point: Principles for Transformative Growth, produced in collaboration with Kearney and the Ministry of Tourism Saudi Arabia, reveals a projected $16 trillion contribution to global GDP by the same year—representing more than 11% of the total world economy, according to World Travel & Tourism Council estimates. The report also found that the sector is expanding 1.5 times faster than the global economy, generating significant commercial opportunities as long as the mounting challenges of climate change, labour shortages and infrastructure gaps are addressed. Inbound and outbound trips increasing fast Asia is on track to become the world’s fastest-growing tourism economy, with the direct travel and tourism GDP contribution expected to exceed 7% across the region by 2034. Notably, India and China

The 2025-2026 World Branding Awards Animalis Edition Honouring Leading Pet and Animal Brands Globally3.7.2025 22:00:00 EEST | Press release

The 2025-2026 World Branding Awards Animalis Edition marked its fifth instalment, bringing together leading pet and animal brands from all around the world. These brands were celebrated for their outstanding achievements, earning recognition as National, Regional, and Global Winners. The awards ceremony, held at Vienna's prestigious Hofburg Palace, welcomed winners across diverse categories, including pet food, retail, wellness, pet exhibitions, and aquatic products. Mounia Berrada-Gouzi expertly hosted the evening, which culminated in a grand celebration of brand excellence. “The Animalis Edition of the World Branding Awards recognises brands that have achieved the highest distinction—genuine recognition in the hearts and minds of consumers. Tonight, we honour those whose names resonate globally, whose values inspire loyalty, and whose presence defines excellence in the pet and animal industry,” said Richard Rowles, Chairman of the World Branding Forum. Out of over 950 brands nominate

Venture Global Announces 20-Year Sales and Purchase Agreement with PETRONAS3.7.2025 15:59:00 EEST | Press release

Today, Venture Global, Inc. (NYSE: VG) announced the execution of a new 20-year Sales and Purchase Agreement (SPA) with PETRONAS LNG Ltd. (PLL), a subsidiary of the Malaysian state-owned oil and gas company, PETRONAS. Under the terms of the SPA, PETRONAS will purchase 1 million tonnes per annum (MTPA) of liquefied natural gas (LNG) from Venture Global’s third facility, CP2 LNG, for 20 years. This builds upon Venture Global’s existing agreement with PETRONAS for 1 MTPA of LNG supply from Plaquemines LNG. PETRONAS, a world-class partner in the LNG industry, joins other CP2 LNG customers in Europe, Asia and the rest of the world in a strategically important project to global energy supply and security. To date, approximately 10.75 MTPA of the 14.4 MTPA nameplate capacity for CP2 Phase One has been sold. About Venture Global Venture Global is a long-term, low-cost provider of U.S. LNG sourced from resource rich North American natural gas basins. Venture Global’s business includes assets ac

Frost & Sullivan Recognizes Novotech as 2025 Global Biotech CRO Company of the Year3.7.2025 15:05:00 EEST | Press release

In recognition of its innovation, client-focused delivery, and global impact, Novotech has been awarded the 2025 Global Biotechnology Contract Research Organization (CRO) Company of the Year by Frost & Sullivan. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20250703950144/en/ Novotech Wins Global CRO Award Novotech is a globally recognized full-service clinical CRO and scientific advisory firm, trusted by biotech and small- to mid-sized pharmaceutical companies to advance their drug development programs at every phase. With a global footprint spanning Asia-Pacific, North America, and Europe, Novotech supports over 5,000 clinical trial sites and a distributed team of experts delivering seamless, end-to-end solutions across geographies. “Novotech is redefining biotech-focused clinical research through AI-driven innovation, global expansion, and a client-embedded partnership model. With a clear vision to be the CRO of choice for

Tinnitus Research: Novel Compound AC102 Makes Constant Ear Noise Disappear in Preclinical Model3.7.2025 13:02:00 EEST | Press release

The novel compound AC102 almost completely reversed tinnitus in a preclinical model after a single dose. At the same time, the damaged connections between the auditory nerve and inner ear sensory cells were restored. These findings were recently published in the prestigious International Journal of Molecular Sciences in a joint study conducted by Erlangen University Hospital and Berlin-based drug developer AudioCure. As there is currently no causal treatment for tinnitus, there is a high medical need. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20250702168211/en/ In 10-20% of tinnitus cases, the noise in the ear is so severe that it significantly impairs the quality of life of those affected. (Source: AI-generated) In the current study, AC102 was administered to the middle ear of one experimental group after acoustic trauma, while a second group received a placebo. Although both groups initially showed signs of tinnitus, th

In our pressroom you can read all our latest releases, find our press contacts, images, documents and other relevant information about us.

Visit our pressroom
World GlobeA line styled icon from Orion Icon Library.HiddenA line styled icon from Orion Icon Library.Eye