A recent report reveals an increase in cancer cases among children treated with Bluebird Bio's Skysona gene therapy, raising concerns about the therapy's safety. Seven children in clinical trials have developed blood cancers,

Seven of 67 patients who received the cerebral adrenoleukodystrophy gene therapy developed blood cancer, though most cases resolved after treatment.

Seven out of 67 children who were given bluebird bio’s (NASDAQ:BLUE) gene therapy Skysona during clinical trials ended up developing blood cancer, according to a new study. Six of the children who received the treatment,

Whilst the events do not outline any new safety risks, the data gives a new understanding of the link between oncogenesis and Skysona.

A Bluebird Bio gene therapy has helped children with a devastating neurological disorder, but seven have developed blood cancer, creating difficult choices for the families.