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A phase I clinical trial was carried out to evaluate the safety and immunogenicity of the vaccine candidate in about 360 participants. [4] The phase II concluded in April 2021. [12] [13] [14] In April 2021, the Drugs Controller General of India permitted the vaccine candidate to start phase III clinical trials. A total of 1,268 healthy ...
COVID-19 vaccine clinical research uses clinical research to establish the characteristics of COVID-19 vaccines. These characteristics include efficacy , effectiveness , and safety. As of November 2022 [update] , 40 vaccines are authorized by at least one national regulatory authority for public use: [ 1 ] [ 2 ]
In February 2021, data released from an interim analysis of Phase III trials with 30,000 participants and 101 COVID cases showed that globally, the vaccine administered as an intramuscular injection had an efficacy of 65.7% at preventing moderate cases of COVID-19 and 90.98% efficacy at preventing severe cases. In the Pakistan trial subset, the ...
ZF2001, trade-named Zifivax or ZF-UZ-VAC-2001, is an adjuvanted protein subunit COVID-19 vaccine developed by Anhui Zhifei Longcom in collaboration with the Institute of Microbiology at the Chinese Academy of Sciences. [2] [3] The vaccine candidate is in Phase III trials with 29,000 participants in China, Ecuador, Malaysia, Pakistan, and ...
International Journal of Clinical Transfusion Medicine; International Journal of General Medicine; International Journal of High Throughput Screening † International Journal of Interferon, Cytokine and Mediator Research † International Journal of Nanomedicine; International Journal of Nephrology and Renovascular Disease
The updated COVID-19 vaccine is now available. Infectious disease doctors recommend being smart about the timing of your shot. You can expect similar side effects to the previous vaccines if you ...
The effectiveness of COVID-19 vaccines, or any other vaccine, is determined in a mass vaccination in a "real-world" setting (not in clinical trials). This is an assessment of how well the vaccine protects people from outcomes such as infection, symptomatic illness, hospitalization, and death.
The CureVac COVID-19 vaccine (abbreviated CVnCoV) was a COVID-19 vaccine candidate developed by CureVac N.V. and the Coalition for Epidemic Preparedness Innovations (CEPI). [3] The vaccine showed inadequate results in its Phase III trials with only 47% efficacy. [ 4 ]