"After completion of the first and second phase of the trial with demonstrable safety profile and immunogenicity, the large scale efficacy trial involving thousands of volunteers has been planned now," Dr Rao added.
He said the volunteers would be followed up over a considerable period of time to look at the efficacy of the vaccine.
"The age limit and eligibility/screening criteria would be relaxed and several volunteers who are otherwise apparently healthy would be recruited for the trial. Like the previous phases, half of the volunteers would receive placebo and the remaining half would be administered Covaxin in this phase. Even healthcare workers would be recruited for the trial. The volunteers would be followed up over a considerable period of time to look at the efficacy of the vaccine in preventing the development of the coronavirus disease," he said.
Dr Rao added that there had been a huge response and enthusiasm among people who had offered themselves to be volunteers for the trial.
"The interested volunteers for the project could enroll themselves for the trial by registering online at www.ptctu.soa.ac under the section register for clinical trials," he said.
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