February
16
 

FDA to study “three-parent embryos”

On February 25 and 26 the US Food and Drug Administration will discuss the possibility of legalising three-parent embryos – or, in scientific lingo, “oocyte modification in assisted reproduction for the prevention of transmission of mitochondrial disease or treatment of infertility”.

This procedure, which involves removing the nucleus from one human egg whose cytoplasm contains defective mitochondria and placing it in an enucleated egg with healthy DNA for subsequent fertilisation, is also being debated in the UK.

The measure is strongly opposed by the Center for Genetics and Society, which is promoting an open letter to the FDA. It claims that mitochondrial transfer is unsafe, is effectively experimentation on unconsenting human subjects, and would only help a handful of women. Most importantly, it constitutes germline modification, a form of eugenics. This is a bright line which no country has ever stepped across.

We strongly believe that clinical trials … should not be permitted because of the profound safety, efficacy, policy and social problems they would pose. We question the ethics of bringing children into existence by experimental techniques that have had developmentally poor outcomes in studies using both animal and human oocytes. We are also concerned about the contravention of widespread prohibitions against human germline genetic modification that approval of clinical trials would represent, and about the possible precedent such approval could set for additional human germline modifications.


This article is published by Michael Cook and BioEdge.org under a Creative Commons licence. You may republish it or translate it free of charge with attribution for non-commercial purposes following these guidelines. If you teach at a university we ask that your department make a donation. Commercial media must contact us for permission and fees. Some articles on this site are published under different terms.

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