Phenylketonuria: Treatment and Support

Jim Shannon Excerpts

Tuesday 26th June 2018 Westminster Hall

[Jim Shannon (Strangford) (DUP)]

It is a pleasure to serve under your chairmanship, Mr Robertson. I congratulate the hon. Member for Blaydon (Liz Twist) on bringing this debate. I also congratulate the hon. Member for Chelmsford (Vicky Ford) on her work in the past and on bringing her Adjournment debate to the House, which I supported.

I am the Democratic Unionist party health spokesperson, so it is important to be heard on this issue, which grossly affects people in Northern Ireland, as well as in the Republic of Ireland. Not many people know this, as Michael Caine always says, but there is a higher per capita prevalence of PKU in Northern Ireland than in the rest of the UK. In fact, one in 4,000 people in Northern Ireland has this condition, compared to one in 12,000 in England.

[Mr Gregory Campbell (East Londonderry) (DUP)]

Given the higher incidence in Northern Ireland, but also instances across the United Kingdom, does my hon. Friend agree that that it is imperative for the Minister, and all health Departments across the UK under the devolution settlement, to ensure that the best possible treatment and support is given to PKU sufferers and their families?

[Jim Shannon]

My hon. Friend is absolutely right. We always look to the Minister for support on these issues, and he is always very forthcoming, so we look to him again with that in mind. It is clear that this condition affects my constituents and those of everyone else who is speaking today.

PKU is usually diagnosed shortly after birth by the heel test. Many women can tell us that when the heel prick is done and they hear their child crying in the hands of the midwife, their automatic reaction is to reach out and grab the child. That test is so important at a very early stage. For those families who receive a diagnosis of PKU, however, the pain begins when they realise just what that means.

People with PKU have a faulty version of the enzyme that breaks down the amino acid phenylalanine, a component of protein. Untreated, it can cause brain damage when it builds up in the blood and brain. Untreated PKU causes profound and irreversible intellectual disability, seizures and behavioural problems. The damage is not reversible, so early diagnosis and early consistent treatment is vital. That is why, in 1969, we added this test to the routine blood test at birth. Some people here were not born then; I was just a young child.

The only treatment for PKU that is currently funded by the NHS is a very restrictive diet. I am a type 2 diabetic, so I understand a wee bit what it means to be careful with what I eat. I know that if I had a wee bit of honey with my toast this morning, I probably should not have done, but by and large I know what I have to do, and what I can and cannot eat. For those with PKU it is much more difficult, and the restriction is great. Most sources of protein are removed from the diet to prevent brain damage.

I want to give a few quotes from the parents of PKU sufferers, so that we can understand a bit better the life lived by those with this disorder. One parent said:

“The low protein prescription breads and pastas give her stomach ache—another reason she refuses to eat them.”

A parent whose daughter has PKU said:

“My daughter struggles with drink supplements as they all upset her tummy so she has to take 50 tablets per day.”

Another parent said:

“PKU causes arguments between us. My husband and I have suffered with stress, we argue about the management of her diet. I had hoped after 12 years things would get easier but this diet is met with anger, frustration, resistance and annoyance all aimed at me.”

The hon. Member for Dudley North (Ian Austin) already referred to the following case, but it is worth repeating simply because of its importance. One parent said that her daughter cannot normally eat, adding,

“she will ask to eat crumbs of normal bread off our plates or we catch her licking our plates.”

That is the impact PKU has on some children and their families. That is why parents throughout the UK are demanding that more be done. We look to the Minister to see if more can be done through his office. If there is something to help these people, we must make it available. We all know what must be made available: Kuvan. We all know what it can do. One young girl took a one-month trial of Kuvan and could eat a normal vegetarian diet. She had more energy, her mood lifted, her nightmares stopped and she could do ordinary activities at home and at school. What a difference it made to the child’s quality of life, and that of the entire family!

I have read that the cost of Kuvan is on average £14,535 for a child and £43,597 for an adult, based on list pricing. The pharmaceutical company BioMarin has publicly stated its willingness to offer substantial discounts in a deal with the NHS. I am asking the Minister, as other Members have done, to broker that deal, and enter into meaningful discussions on providing the medication, as the High Court ruling has said that we should. I urge the Minister to instruct his Department to find a way of making this available, rather than simply checking a box.

In conclusion, I ask that no parent be forced into this situation when there is something available to prevent it. I stand with the PKU sufferers of Strangford, Northern Ireland and the whole of the United Kingdom of Great Britain and Northern Ireland.