August 15 deadline for Covaxin impossible to achieve, say trial sites

This, even after India clubs phase 1 & 2 of vaccine trials: Experts

India’s Covid-19 vaccine story took an unexpected turn after the Indian Council of Medical Research’s (ICMR’s) chief wrote to investigators of the clinical trial sites chosen for Covaxin — being developed by Bharat Biotech in partnership with the National Institute of Virology — informing them of the launch date coinciding with India’s Independence Day (August 15). 

The clinical trial sites are divided in their opinion on the timelines as well as the protocols to be followed for the trials — some say phase 1 and 2 will be conducted together and the trials can end within a month, while many