In a new report, the International Coalition of Medicines Regulatory Authorities (ICMRA) stated that the administration of multiple booster doses at short intervals is not a sustainable approach to ensuring COVID-19 vaccine efficacy long term and instead encouraged vaccine developers to develop bivalent or multivalent variant vaccines.
The report highlights a discussion on the effectiveness of current vaccines against the COVID-19 Omicron variant, regulatory requirements for a variant vaccine and considerations on clinical study design by international regulators. The discussion took play on 12 January 2022.
