Other candidates being developed in China and the United Kingdom are still in animal studies. Recent early data for one possible vaccine, spearheaded by Oxford University researchers, suggested it might not be effective in monkeys.
Monday’s results from Moderna, although preliminary, „boost confidence“ that the company can move into Phase Two trials very quickly to determine whether the vaccine is effective, executives said on a call with investors. If the next trial goes as expected, the vaccine could begin Phase Three, the last but most extensive stage of human trials, in July.
Success is not a given. Vaccine development normally takes years, and Moderna has not yet won approval for any vaccine it has developed using the mRNA technology behind its coronavirus vaccine.
Phase One is the smallest and shortest stage of clinical trials. Subsequent trials typically enroll hundreds or thousands of people and take months to complete.
Source: politico.com
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