Pfizer/BioNTech Begin Omicron Vaccine Study
Pfizer and BioNTech have begun a clinical study to evaluate the safety, tolerability and immunogenicity of an Omicron-based vaccine candidate in healthy adults aged 18 through 55 years. The 1,400-patient study, which will have three cohorts examining different regimens of their current Covid-19 vaccine or an Omicron-based vaccine, will determine the potential need for variant-based vaccines, according to the companies.
The companies say that clinical and real-world data continue to find people who are vaccinated, particularly those that have received a booster, maintain strong protection against Omicron, particularly against severe disease and hospitalization. Previously, they have announced plans to produce four billion doses of their Covid-19 Vaccine this year, and this is not expected to change if an adapted vaccine is required.