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2nd man has gene editing; therapy has no safety flags so far

February 7, 2018

Doctors say they have treated a second patient in a historic gene editing study in California.

In an update Tuesday, they say no major side effects or safety issues have emerged from the first man’s treatment nearly three months ago.

Gene editing is a more precise way to do gene therapy and aims to permanently change someone’s DNA to try to cure a disease.

In November, a Phoenix man became the first person to have gene editing inside the body for a metabolic disease. Through an IV, he received a corrective gene and a genetic tool to put it in a precise spot.

Results were presented at a medical conference. A second man treated in mid-January is doing well, but it’s too soon to know whether the treatment worked.

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