The company said it ran two early studies in people previously given its vaccine and found that a second dose produced an increased antibody response in adults from age 18 to 55.
Johnson & Johnson released data showing that a booster dose to its one-shot coronavirus vaccine provides a strong immune response months after people receive the first dose.
J&J said in a statement Tuesday that it ran two early studies in people previously given its vaccine and found that a second dose produced an increased antibody response in adults from age 18 to 55. The study’s results haven’t yet been peer-reviewed.
“A booster dose of the Johnson & Johnson COVID-19 vaccine further increases antibody responses among study participants who had previously received our vaccine,” said Dr. Mathai Mammen, global head of research and development at J&J. The company previously published data showing its one-shot dose provided protection for up to eight months after immunization.
J&J said it is now in talks with regulators including the U.S. Food and Drug Administration, the European Medicines Agency, and others regarding using booster doses of its vaccine.
Last week, experts at the FDA recommended people 65 and older get a third dose of the COVID-19 vaccine made by Pfizer-BioNTech while Britain previously authorized booster shots for people 50 and over in addition to priority groups like health workers and those with underlying health conditions. Other countries including Israel, France, and Germany have also begun offering third vaccine doses to some people.
In a paper published last week in the journal Lancet, top scientists from the WHO and FDA argued that the average person doesn’t need a booster shot and that the authorized vaccines to date provide strong protection against severe COVID-19, hospitalization, and death.