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Celltrion launches human clinical trial of potential COVID-19 antiviral antibody treatment following positive pre-clinical results

·          The Phase I study of Celltrion’s COVID-19 antiviral antibody treatment candidate in healthy volunteers is set for completion by Q3 this year

·          Celltrion’s COVID-19 antiviral antibody treatment candidate has been proven to be effective in neutralising different kinds of coronavirus related strains including the mutated G-variant strain of SARS-CoV-2 (D614G variant)

·          Further human studies across Europe including the UK are planned – the company anticipates promising preliminary results from pivotal studies in mild and moderate COVID-19 patients by the end of the year


JULY 20th 2020, INCHEON, KOREA – Celltrion Group today announced the launch of its Phase I human clinical trial investigating a potential antiviral antibody treatment for patients with COVID-19. The in-human study follows positive pre-clinical results for the treatment candidate and subsequent approval of the Investigational New Drug application by the Korean Ministry of Food and Drug Safety (MFDS). The potential treatment will also be investigated for use as a preventative measure.


The Phase I clinical trial aims to enroll 32 healthy volunteers in collaboration with Chungnam National University Hospital.  The study will evaluate the safety of the antiviral antibody treatment candidate in healthy participants who have not been diagnosed with COVID-19. The trial’s completion is expected by Q3 of this year.


Celltrion is set to conduct a further in-human Phase I clinical trial of the antiviral treatment candidate in mild COVID-19 patients across Europe, including the UK, which will be followed by global Phase II/III trials in patients with mild and moderate COVID-19. Celltrion anticipates promising preliminary results from pivotal studies by the end of the year.


In addition, a clinical trial investigating the use of the potential antiviral antibody treatment as a preventative measure, by enrolling people in close contact with COVID-19 patients globally, is also planned. The topline data for this trial is anticipated in Q1 of 2021.


Furthermore, Celltrion has previously demonstrated its antiviral antibody treatment to be effective in neutralising the mutated G-variant strain  (D614G variant),[1] which is associated with the increased viral transmission and wide spread of COVID-19.[2]


“The initiation of this in-human clinical trial is a key milestone in the development of our antiviral antibody treatment,” said Dr. Sang Joon Lee, Senior Executive Vice President of Celltrion. “We were encouraged by the positive safety and efficacy results in our pre-clinical studies, and we are now ready to move into in-human clinical trials as we originally planned. We remain committed to carrying out local and global clinical studies with the goal of commencing mass production of the therapeutic antibody treatment in the latter half of this year.”

[1] Data on file. Celltrion Healthcare

[2] Newer variant of COVID-19–causing virus dominates global infections. Los Alamos National Laboratory. Available at Last accessed: July 2020

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Last Updated: 17-Jul-2020