Singapore grants provisional approval for the first bivalent COVID-19 booster vaccine

On Wednesday (September 14), the Health Sciences Authority (HSA) gave interim permission for the first bivalent COVID-19 booster vaccination to be used in the country.

The SARS-CoV-2 original strain and the Omicron BA.1 variant are the ones that are targeted by the two different components of the Spikevax Bivalent Original/Omicron COVID-19 injection that are manufactured by Moderna.

According to a statement made by HSA in a news release, it is an improved version of the Moderna COVID-19 vaccine that is only based on the primary SARS-CoV-2 strain.

Those patients aged 18 years and older who have previously been vaccinated against COVID-19 as part of the primary series are eligible to get it as a booster shot.

The provisional authorization was issued in accordance with the Pandemic Special Access Route in Singapore (PSAR).

According to statements made by Health Minister Ong Ye Kung in front of Parliament on Tuesday, the Ministry of Health has reached agreements with the pharmaceutical companies Pfizer-BioNTech and Moderna to deliver their new bivalent vaccinations into the country.

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Both the ancestral strain of COVID-19 and the Omicron variation, which includes the BA.4 and BA.5 strains, are targeted by the bivalent vaccinations.

The Moderna booster shot is a single dosage that consists of two components: 25 micrograms that target the original strain of SARS-CoV-2, and 25 micrograms that target the Omicron BA.1 variant.

In due time, the Expert Committee on COVID-19 Immunization and the Ministry of Health (MOH) will release official vaccination recommendations utilizing this booster, according to the HSA.

HSA stated that it had carefully examined the data from Moderna’s pre-clinical studies, clinical trials in human volunteers, manufacturing and quality controls, and reached the conclusion that the benefits of using the bivalent vaccine as a booster to protect against COVID-19 outweighed the risks of doing so. This was due to the fact that the virus is continuing to evolve.

In addition, the HSA stated that it engaged with members of its Medicines Advisory Committee and Panel of Infectious Diseases Experts before making its conclusion about the regulatory framework.

The regulatory body stated that its clinical analysis was based on an ongoing Phase 2/3 trial that was carried out by Moderna in people who were at least 18 years old.