On recommendation by the Subject Expert Committee under the Indian drug regulator, the company conducted phase 1 clinical trials using 75 volunteers and submit safety and immunogenicity data for the committee's consideration before it proceeds to the second phase of the trial.
On 12 August 2021, after evaluating the results of phase I trial data, the drug regulator approved for phase II/III randomized trials that involves evaluation of the immunogenicity and safety of Covaxin with BBV154 in healthy volunteers.