The EU’s drug regulator said Friday it had launched a review of possible links between the Johnson & Johnson coronavirus vaccine and blood clots after reports of four cases, one of them fatal.
The European Medicines Agency (EMA) said its safety committee “has started a review of a safety signal to assess reports of thromboembolic events” with people who had received the shot.
“Four serious cases of unusual blood clots with low blood platelets have been reported post-vaccination with Covid-19 Vaccine Janssen,” the EMA said, referring to US pharma giant J&J’s European subsidiary.
“One case occurred in a clinical trial and three cases occurred during the vaccine rollout in the USA. One of them was fatal.”
The watchdog has approved the Johnson & Johnson vaccine for use but its rollout across the 27-nation EU is not due to start until later this month.
The probe comes days after the Amsterdam-based watchdog said it was listing the same type of blood clots as a very rare side effect of the rival AstraZeneca vaccine.
Both jabs use similar adenovirus vector technology.
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