Celltrion’s Monoclonal Antibody Treatment regdanvimab, Approved by the European Commission for the Treatment of COVID-19

Celltrion Group announced today that the European Commission (EC) has approved Regkirona (regdanvimab, CT-P59), one of the first monoclonal antibody treatments granted marketing authorisation from the European Medicines Agency (EMA). The EC granted marketing authorisation for adults with COVID-19 who do not require supplemental oxygen and who are at increased risk of progressing to severe COVID-19. The decision from the EC follows a positive opinion by the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) on November 11^th, 2021.¹

“Today’s achievement, coupled with CHMP positive opinion for regdanvimab, underscores our ongoing commitment to addressing the world’s greatest health challenges,” said Dr. HoUng Kim, Ph.D., Head of Medical and Marketing Division at Celltrion Healthcare. “Typically, the recommendations from the CHMP are passed on to the EC for rapid legally binding decisions within a month or two, however, given the unprecedented times, we have received the EC approval within a day. As part of our global efforts to accelerate access, we have been communicating with the governments and contractors in 30 countries in Europe, Asia and LATAM. We will continue working with all key stakeholders to ensure COVID-19 patients around the world have access to safe and effective treatments.”

Monoclonal antibodies are proteins designed to attach to a specific target, in this case the spike protein of SARS-CoV-2, which works to block the path the virus uses to enter human cells. The EC approval is based on the global Phase III clinical trial involving more than 1,315 people to evaluate the efficacy and safety of regdanvimab in 13 countries including the U.S., Spain, and Romania. Data showed regdanvimab significantly reduced the risk of COVID-19 related hospitalisation or death by 72% for patients at high-risk of progressing to severe COVID-19.

Emergency use authorisations are currently in place in Indonesia and Brazil, and the monoclonal antibody treatment is fully approved in the Republic of Korea. In the U.S., regdanvimab has not yet been approved by the Food and Drug Administration (FDA), but the company is in discussion with the FDA to submit applications for an Emergency Use Authorisation (EUA).

As of November 12^th, 2021, more than 22,587 people have been treated with regdanvimab in 129 hospitals in the Republic of Korea.

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 neutralise 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 Celltrion also has recently commenced the development of a neutralising antibody cocktail with CT-P59 against new emerging variants of SARS-CoV-2.

FORWARD LOOKING STATEMENT

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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 European Medicines Agency. COVID-19: EMA recommends authorisation of two monoclonal antibody medicines. Available at https://www.ema.europa.eu/en/news/covid-19-ema-recommends-authorisation-two-monoclonal-antibody-medicines [Last accessed November 2021].
² Celltrion Data on file

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