Protein-based COVID-19 vaccine trial launched by Sanofi and GSK Kumar Jeetendra | September 3, 2020 French drugmaker Sanofi and its British peer GSK have begun a clinical trial for a protein-based COVID-19 vaccine candidate, as pharmaceutical firms race to develop treatments against the coronavirus pandemic. Sanofi and GSK said in a joint statement on Thursday they’d begun the”Stage 1/2″ trial for their adjuvanted COVID-19 vaccine, and that they expect to …