Zynteglo Authorization Renewal Paused While EU Regulators Examine Safety Concerns

The European Medicines Agency is reviewing the safety of bluebird bio’s beta thalassaemia gene therapy, which is so far only approved in the EU and has only been used in one patient outside the context of clinical studies.

Gene therapy
Zynteglo is a gene therapy for beta thalassaemia • Source: Shutterstock

The European Medicines Agency has paused the renewal procedure for the EU conditional marketing authorization (CMA) for Zynteglo (betibeglogene autotemcel) while it continues to look into concerns over the safety of the lentiviral vector used to manufacture the beta thalassaemia gene therapy from bluebird bio.

The EMA said on 12 March that it had started reviewing Zynteglo’s safety due to concerns over a case of...

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