Doctors have linked a boy's tumor to a gene therapy, but say the rare risks need to be weighed against the profound benefits such medicines can offer.
Adam Brennan (center) and his parents, Mary Beth and Dave Brennan.Photo illo: STAT;Photos: Mary Beth and Dave Brennan
By Jason Mast
May 13, 2026
General Assignment Reporter
Jason Mast
Boy’s brain tumor tied to gene therapy
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“We’re still very much in the early stages,” a gene therapy expert said. “But every day, he’s showing us signs that he’s growing…
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