Johnson & Johnson today announced data supporting the use of the Janssen COVID-19 vaccine in people who have previously received the vaccine from the same company.
As recalled, a study published in July in the New England Journal of Medicine showed that the neutralizing antibody response produced by the vaccine was robust and stable for eight months after vaccination.
“In anticipation of the potential need for booster doses, the company conducted a Phase 1/2a study and a Phase 2 study in people previously vaccinated with its vaccine. Preliminary data from these studies show that a booster dose of Janssen against COVID-19 led to a rapid and robust increase in binding antibodies. Nine times more than 28 days after the initial vaccination with a single dose,” the release reads.
determined that a significant increase in the antibody binding response was seen in participants aged 18 to 55 years and in those over 65 years of age who received a lower booster dose. The research summaries were presented Tuesday on medRxiv.
“We found that a single dose of our COVID-19 vaccine generates strong and sustained immune responses that last for eight months. With this data, we also see that a supplemental dose of the vaccine increases antibody production among study participants who previously had our vaccine.” – said Dr. Love. Mathai Moomin, head of research and development at Johnson & Johnson’s Janssen pharmaceutical company.
Will there be a second dose of the single-dose vaccine?
Momen added that the company is waiting to discuss with public health authorities a potential strategy to boost the COVID-19 vaccine for eight months or more after initial vaccination with a single-dose vaccine.
W Vaccinations in Poland It is performed with two-dose preparations of Pfizer/BioNTech, Moderna and AstraZeneca or with a single dose of Janssen (Johnson & Johnson) vaccine.
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