Serum Institute, Bharat Biotech to Begin Late-Stage Trial of Intranasal Covid-19 Vaccine Soon

Serum Institute of India and Bharat Biotech are expected to pursue late stage clinical trials of intranasal COVID-19 vaccines in the coming months once they receive regulatory approval, Health Minister Dr Harsh Vardhan said today.

Mr Vardhan said the late-stage trial generally involves thousands of participants, sometimes 30,000 to 40,000.

Of the vaccines currently in Phase 3 trials, all are administered by injection, according to the World Health Organization (WHO).