Six-Month-Old KJ Muldoon Becomes First Baby Treated with Personalized CRISPR Gene Therapy
KJ Muldoon, a baby boy born with a rare genetic disorder, has been successfully treated with CRISPR gene therapy, marking a significant breakthrough in personalized medicine.

In World First, Baby Receives Personalized CRISPR Gene-Editing Treatment

Scientific American

Custom genetic treatment saved infant’s life, study says

World News Group

This baby boy was treated with the first personalized gene-editing drug

MIT Technology Review
Summary
Researchers from Children’s Hospital of Philadelphia have used personalized CRISPR gene-editing therapy to treat KJ Muldoon, a six-month-old baby boy diagnosed with a severe genetic metabolic disease. This unique therapy corrects a specific mutation impeding the production of an essential liver enzyme, which previously posed life-threatening risks due to ammonia buildup in his blood. KJ's health has drastically improved following the treatment, allowing him to consume more protein. His case, presented at a major medical conference, represents not only a potential template for treating similar disorders but also reflects the rapid advancements in personalized medicine and regulatory processes.
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