By Natalie Rahhal Deputy Health Editor For Dailymail.com
Published: 17:53 BST, 16 April 2019 | Updated: 17:54 BST, 16 April 2019
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Two human patients have had their genes edited in one of several clinical trials of CRISPR now underway in the US.
The University of Pennsylvania is using the ground-breaking - and at times controversial - technology to treat patients with myeloma.
A spokesperson for the university confirmed that two patients there have been treated in an email to NPR.
University of Pennsylvania's (U Penn) trial comes just months after Chinese scientists caught international wonder and wrath when they announced that twin girls they had gene edited in the womb had been born.
But the U Penn study (like some 25 others in the US, and more abroad) is treating only mutations in adult patients, side-stepping ethical concerns about changing the heritable human genome that arose after the Chinese experiment.
