Home » Vaccines, J&J: “With booster 9-fold increase in antibodies”

Vaccines, J&J: “With booster 9-fold increase in antibodies”

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A booster dose of the vaccino J&J “generated a 9-fold increase in antibodies compared to 28 days after the first dose.” Johnson & Johnson underlines this in a note. The data comes from two Phase 2 studies conducted in the United States and Europe of 2,000 participants in anticipation of the potential need for a booster. The data were presented in pre-publication in ‘medRxiv’. In July, the company released interim data, published in the New England Journal of Medicine, which showed one immune response stable for eight months after immunization.

“We know that a single dose of our vaccine generates strong and robust immune responses that are durable and persistent for eight months – underlined Mathai Mammen, Head of Research and Development at Janseen – With these new data we are seeing that a booster dose of the vaccine to study participants, who were previously immunized with our vaccine, further increases antibody responses. “

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J&J is in dialogue with the FDA, the CDC and the EMA on the need to offer a booster dose of the Janssen vaccine. “We look forward to discussing the potential strategy for our single-dose vaccine with public health officials, considering a booster eight months after the first dose.”

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