
The baby saved from a rare disease by a first-ever personalized gene fix has reached a big milestone, taking his first steps ahead of Christmas.
KJ Muldoon is walking and getting ready to celebrate the holiday season at home with his parents and three siblings.
KJ was born last year with a genetic disorder called carbamoyl-phosphate synthetase 1 deficiency. Also known as CPS1 deficiency, the metabolic condition affects only 1 in 1.3 million babies and often leads to life-threatening outcomes.
When he was 6 months old, doctors began giving KJ a groundbreaking new treatment -- a personalized CRISPR gene editing therapy at Children's Hospital of Philadelphia.
Doctors save baby's life with first-ever gene fix for deadly rare disease
The gene-editing therapy works like a "molecular spell-checker,” finding and fixing the specific genetic error causing his condition.
After three infusions and after spending the first 10 months of his life in a hospital, KJ was discharged and sent home in June.
Baby saved by gene-editing therapy 'graduates' from hospital, goes home
Since then, KJ has continued to grow and thrive with his family, celebrating his first birthday at home and taking part in one of the family’s favorite rituals -- cheering for their beloved Philadelphia Eagles.
Doctors hope new technology like CRISPR gene-editing therapies can be the key to treating more than 7,000 rare diseases, such as sickle cell disease, cystic fibrosis, Huntington’s disease and muscular dystrophy, that affect approximately 30 million people across the country.
latest_posts
- 1
Step by step instructions to Keep up with Ideal Oral Cleanliness at Home - 2
Israeli strikes in Gaza kill 25 people, Hamas health authority says - 3
AI’s errors may be impossible to eliminate – what that means for its use in health care - 4
Fossil analysis changes what paleontologists know about how long T. rex took to grow full size - 5
Lebanon says Israeli strike killed 13 people near Palestinian refugee camp
Comet Lemmon and Milky Way spotted over Hawaii | Space photo of the day for Dec. 12, 2025
5 Side interests That Work on Psychological wellness
One killed, several injured in Iran missile barrage on southern, central Israel
Manual for Big name Work out schedules
Can scientists detect life without knowing what it looks like? Research using machine learning offers a new way
Overlooked infertility care should be part of national health services, says WHO
The Fate of Gaming: 5 Energizing Advancements Not too far off
Coalition led by Iraqi PM al-Sudani wins parliamentary elections
Palestine weekly wrap: Protests sweep West Bank after death penalty law













