Human Fertilisation and Embryology (Mitochondrial Donation) Regulations 2015

Debate between Lord Patel and Baroness Hollins

Tuesday 24th February 2015 Lords Chamber

[Baroness Hollins (CB)]

My Lords, I take a rather different view from some of my eminent medical colleagues. I have worked for over 30 years with families of severely disabled children. As a psychiatrist—and as the mother myself of a child born with a severe developmental disability—my heart goes out to those parents facing the prospect of inherited mitochondrial disorders. As a mother, I understand what is called the moral imperative to try to help. However, our first responsibility must be to the children who may be created through these proposed interventions: the most important moral imperative must be to do no harm.

A new technology of such potential importance must take as long as is needed to be as sure as possible of its safety. Being first is not always best. I have carefully read the HFEA 2014 review of scientific methods. It has been implied that the scientific reviews have not raised any concerns, but in paragraph 3.7.25 the review states,

“although the results with the two techniques continue to be promising, further experiments need to be carried out before introducing either into clinical practice to provide further reassurance about efficiency and safety”.

I asked a Written Question in December asking whether clinical trials were being planned and I am grateful for the helpful reply from the Minister and the mention he made of it in his opening remarks—although I disagree with his interpretation of medicine, which is defined much more broadly in the European directive. The Minister also explained that,

“for any new IVF technique there will need to be careful monitoring of the procedure and, subsequently, any pregnancies”.

But we are not talking about pregnancies primarily; this is me as the psychiatrist talking now. As the noble Lord, Lord Deben, pointed out, we are talking about children—children who will, we hope, grow up to be healthy human beings, and who will themselves be able to have healthy children. But what if they do not?

In paragraph 3.7.29 the HFEA expert panel said:

“Until knowledge has built up that suggests otherwise, the panel recommends that any female born following MST or PNT”—

maternal spindle transfer or pronuclear transfer—

“should be advised, when old enough, that she may herself be at risk of having a child with a significant level of mutant mtDNA, putting her child, and if female, subsequent generations at risk of mitochondrial disease”.

The science is complicated, but there is apparently a real possibility that resulting embryos from a woman born after MST or PNT could be heteroplasmic—

[Lord Patel]

May I ask the noble Baroness what experiments she would propose to determine that the children born through this procedure will be healthy in every way, including reproduction-wise?