Covaxin: No serious adverse events in phase 1 trials

The interim findings of phase 1 medical trial of COVID-19 vaccine Covaxin, indigenously developed by Bharat Biotech in collaboration with the Indian Council of Medical Research, confirmed that it was effectively tolerated in all dose teams with no serious or adverse events.

The vaccine induced strong binding and neutralising antibody responses which had been corresponding to these noticed in the convalescent serum collected from sufferers who had recovered from COVID-19, in keeping with the findings which have appeared on medRxiv, a preprint server.

A preprint is a model of a scientific manuscript posted on a public server previous to formal peer evaluation.

One serious adverse occasion was reported, which was discovered to be unrelated to vaccination, the findings confirmed.

It was a double-blind randomised managed phase 1 medical trial to judge the protection and immunogenicity of Covaxin (BBV152).


The doc mentions that BBV152 is saved between 2 levels Celsius and eight levels Celsius, which is appropriate with all nationwide immunisation programme chilly chain necessities and additional efficacy trials are underway.

According to the “A Phase 1: Safety and Immunogenicity Trial of an Inactivated SARS-CoV-2 Vaccine BBV152”, after the primary vaccination, native and systemic adverse events had been predominantly delicate or average in severity and resolved quickly, with none prescribed treatment.

The same development was noticed after the second shot was administered. Pain on the injection web site was the commonest native adverse occasion.

“One serious adverse event was reported. The participant was vaccinated on July 30. Five days later, the participant reported symptoms of COVID-19 and was found to be positive for SARS-CoV-2,” in keeping with the findings.

(*1*) the findings confirmed.

To guarantee generalisability, the trial was performed on volunteers from various geographic places and socioeconomic circumstances, enrolling 375 members throughout 11 hospitals.

“Despite the fact that enrolment occurred during a national lockdown, which led to several operational challenges, the overall participant retention rate was 97 per cent,” the findings confirmed.

The pattern dimension was deliberately giant to allow the inference of significant conclusions concerning immunogenicity and security, the doc mentioned.

BBV152 induced strong binding and neutralising antibody responses that had been just like these induced by different SARS-CoV-2 inactivated vaccine candidates, it mentioned.

Two doses of the vaccine had been administered at a quantity of 0.5 mL/dose intramuscularly on days zero and 14. The follow-up visits had been scheduled on days 7, 28, 42, 104, and 194.

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