Grifols begins clinical trial of a new treatment that would provide immediate immunity against COVID-19

Barcelona, Spain, January 18, 2021 - Grifols (MCE: GRF, MCE: GRF.P, NASDAQ: GRFS), a global leader in the development of therapies with plasma-derived proteins with a track record of more than 100 years dedicated to enhancing people’s health and well-being, today announced it will begin a clinical trial in Spain to evaluate the safety and efficacy of a new COVID-19 drug based on the Grifols immunoglobulin Gamunex®-C and containing anti-SARS-CoV-2 polyclonal antibodies from plasma donors who have recovered from the disease.

The new drug would provide immediate post-exposure protection against the virus and would be especially useful as a complement to the vaccine in the early phase after vaccination. In addition, it could protect the elderly and healthcare workers as well as immunocompromised patients for whom vaccination isn’t recommended. It could also help contain outbreaks in places where the vaccination hasn’t begun or is still underway.

Grifols expects this clinical trial, led by the researchers Oriol Mitjà and Bonaventura Clotet, from Germans Trias i Pujol Hospital in Barcelona, to begin in February 2021, with the possibility of results in the spring.

About 800 patients, all asymptomatic but having tested positive for the virus in a diagnostic test, will participate in the clinical study, receiving subcutaneously Grifols’ immunoglobulin rich with anti-SARS-CoV-2 antibodies.

The Grifols immunoglobulin Gamunex®-C, whether administered intravenously, intramuscularly or subcutaneously, has proven to be safe and efficacious in the prevention of diverse infectious diseases in immunocompromised patients and has been used for this for more than 15 years. 

According to Dr. Mitjà, “This treatment based on immunoglobulins would provide a combination of polyclonal antibodies that, compared with monoclonal antibodies, offers a greater diversity that could improve the degree of protection against the virus.”

Dr. Antonio Páez, Medical Director at Grifols, underscores that the potential treatment “is easy to refrigerate while its subcutaneous administration facilitates its distribution and use in any doctor’s office, avoiding hospitalization. If the new therapy’s efficacy is confirmed, it could be administered to people who test positive for the virus through PCR and antigen tests in hospitals and primary care offices.”

Grifols, a global leader in the production and distribution of immunoglobulins and hyperimmune immunoglobulins, currently has underway more than 25 research initiatives to treat different stages of COVID-19, from early exposure to the virus to severe cases requiring hospitalization and intensive care.

In October 2020, Grifols, together with other companies and various U.S. health agencies, began the clinical trial ITAC (Inpatient Treatment with Anti-Coronavirus Immunoglobulin) to evaluate the efficacy and safety of the anti-SARS-CoV-2 hyperimmune globulin in hospitalized and serious cases. Results are expected during the first half of 2021.