[Development and Evaluation about "2nd-wave" COVID-19 Vaccines].
Yakugaku Zasshi
; 142(6): 619-627, 2022.
Article
in Japanese
| MEDLINE | ID: covidwho-1869129
ABSTRACT
To tackle the pandemic of the novel coronavirus (severe acute respiratory syndrome coronavirus 2; SARS-CoV-2), the international society, including Japan, has been actively promoting vaccination for SARS-CoV-2. To effectively utilize these vaccines, clinical trials have been conducted to evaluate their safety and efficacy. For efficacy evaluation, prevention rate of symptomatic novel coronavirus infections (corona virus disease 2019; COVID-19) between placebo groups and investigational vaccine groups has been the key parameter to evaluate the novel COVID-19 vaccines. This approach is based on a consensus among international regulatory authorities. Compared to several months ago, the public vaccination campaign for COVID-19 has substantially progressed in many countries. This makes it difficult to conduct clinical trials, which have placebo control arms, anywhere in the world because of ethical problems in administering a placebo during a pandemic. Therefore, the new international consensus among regulatory authorities is that immunogenicity bridging studies between the new COVID-19 vaccines that are being developed and approved COVID-19 vaccines may be needed when placebo-controlled studies are no longer feasible. In the future, the number of unvaccinated people worldwide is expected significantly decrease; thus, the issue of how to evaluate additional immunization for those who have completed the initial immunization remains to be addressed. This would require new international convergence. The development of COVID-19 vaccines and their evaluation would have to be updated, considering the social situation and vaccine coverage.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Viral Vaccines
/
Vaccines, DNA
/
COVID-19
Type of study:
Experimental Studies
/
Prognostic study
/
Randomized controlled trials
Topics:
Long Covid
/
Vaccines
Limits:
Humans
Language:
Japanese
Journal:
Yakugaku Zasshi
Year:
2022
Document Type:
Article
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