Baby KJ smiles post infusion as father Kyle, wearing a green hoodie, holds the baby's waist -- Biotech coverage from STAT
Baby KJ smiles post infusion at his father, Kyle Muldoon.Children’s Hospital of Philadelphia

Jason Mast is a general assignment reporter at STAT focused on the science behind new medicines and the systems and people that decide whether that science ever reaches patients. You can reach Jason on Signal at JasonMast.05.

For the ailing gene editing industry, hope came earlier this month in the tiny, smiling, fuzzy-headed form of KJ Muldoon.

At just 6 months old, KJ received a gene-editing treatment custom-built to correct his unique mutation. He’s not cured, researchers explained at the annual American Society of Gene & Cell Therapy meeting in New Orleans. But he has been able to resume a normal diet and is no longer on the path to a liver transplant. 

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The news could not have come at a more welcome or more jarring time for the field. For three years, gene editing has seemed in free fall, riven by layoffs, closures, shuttered programs, and sinking stock prices. Now here, finally, in striped pajama form, was a reminder of what a decade of advances could deliver. “How awesome is it that we’re at this point?” said Nessan Bermingham, who co-founded and led Intellia, one of the first CRISPR companies, until 2017. 

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