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Johnson & Johnson coronavirus vaccine gets better boost from Moderna or Pfizer, US study shows
- The findings by the National Institutes of Health come as an advisory group to the FDA prepares to discuss booster jabs for Moderna and J&J vaccines
- The preliminary study also showed that ‘mixing and matching’ booster shots of different types is safe in adults
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People who got Johnson & Johnson Inc’s Covid-19 vaccine as a first shot had a stronger immune response when boosted with vaccines from Pfizer Inc/BioNTech SE or Moderna Inc, a study run by the National Institutes of Health showed on Wednesday.
The study, which is preliminary and has not been peer reviewed, is the latest challenge to J&J’s efforts to use its Covid-19 vaccine as a booster in the United States.
The study, which included more than 450 adults who received initial shots from Pfizer, Moderna, or Johnson & Johnson, showed that “mixing and matching” booster shots of different types is safe in adults. Moderna’s and Pfizer’s vaccines are based on messenger RNA while J&J’s uses viral vector technology.
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It comes as an advisory group to the US Food and Drug Administration is preparing to meet later this week to discuss the merits of a booster shot for Moderna and J&J vaccines.
02:01
China considers mixing Covid-19 vaccine types to boost effectiveness
China considers mixing Covid-19 vaccine types to boost effectiveness
FDA officials on Wednesday said J&J’s regulatory submission for its planned booster raised red flags including small sample sizes and data based on tests that had not been validated.
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