Low Dose Naltrexone

Debate between Annette Brooke and Nia Griffith

Thursday 8th December 2011 Commons Chamber

[Annette Brooke (Mid Dorset and North Poole) (LD)]

I congratulate the hon. Member for Llanelli (Nia Griffith) on securing this debate. I am sure that, like me, she has a number of constituents who are benefiting from this drug—I refer particularly to members of the Purbeck and Wareham multiple sclerosis group. It is so frustrating that they cannot get hold of something, through the NHS or in some form that is easily accessible, given that it is definitely making a difference to their lives. I am sure that she would agree that there is a fear that they might not be able to get it one day. What do they do then?

[Nia Griffith]

The hon. Lady is quite right. These people fear that if they change from one GP to another, or if people are less sympathetic towards this drug—obviously this is something that people have to be convinced about—they may well not be able to get hold of it. Unless there is some form of authorisation and some form of making it an official drug that is more widely available, they do run the risk that she describes.

The problem is that many patients feel let down because what they see as perfectly good therapies, which are cheap but out of patent, are being withheld when patients want them. When doctors cannot refuse a patient’s choice, they can still deny it to them, because clearly the issue of their professional conduct is involved. If the NHS recommends another treatment, quite possibly one that costs thousands and has drug company support, it is often difficult to get the research done to prove the validity of a drug such as LDN.

Some 5,000 people in the UK with multiple sclerosis use LDN, and a few thousand more use it for other conditions, such as Crohn’s disease, cancers, fibromyalgia, autism and so on. Their GPs usually prefer not to sign NHS prescriptions for LDN—indeed, they may refuse to do so—but there are instances of GPs then charging patients for private prescriptions, explaining that they are worried that NHS prescribing guidelines would prohibit them from prescribing LDN and so they would end up in serious trouble if they did so. One GP in Glasgow who prescribes a lot of LDN was reported to the General Medical Council for doing so recently. My constituent Andrew Barnett has told me that his GP has said that his lawyers advised against it, so he writes my constituent a private prescription and charges him £8.50 a quarter for doing so. My constituent then also has to pay for the LDN itself, at a cost of £17.50 a month.

Some 100,000 people in the UK have MS, only 12% of whom use drugs offered by the NHS. Some of the drugs available are risky and very expensive, and there are questions about how effective they are. Yet some 5% of MS sufferers choose to use LDN, because they feel that it helps them and does not have the risks of some other treatments. LDN has proved to be safe in trials at very high doses, but it is unpromoted and hard to get. Because people are now making this choice, there must be a way to get this treatment legitimised on the NHS for patients who ask for it. However, we are told that without substantial trials that is not possible. It is very difficult to find a way to fund any such trials because the drug itself is already licensed and therefore drug companies would not be able to recoup the cost of funding the research by marketing the drug; there would be no money in it for them.

We live in an age where information, including real scientific papers and trials reports, is easily available. Patients who are really determined to make the most of their lives, despite terrible illnesses, and who have the wherewithal to look into the research do seek out information and solutions. We have been using LDN in the UK for some 11 years. Naltrexone has been trialled at high doses to treat heroin addiction and is known to be safe, so the only real thing missing is the marketing authorisation from the Medicines and Healthcare products Regulatory Agency—MHRA—for a formulation of low-dose naltrexone, perhaps in liquid or capsule form. A trial would add proof—or not—of its efficacy.

The cost of a trial is probably considerably lower than the cost of a high-tech drug, because the drug itself is so cheap. Estimates suggest that a single trial can be done with some £7 million, but that is just an estimate based on £1,000 per patient a year for the monitoring specialists, plus up to £3,000 a year per patient for LDN. There would be the costs of recruiting 500 to 800 patients and then something to cover the analysis of the results.

There are no systems available, however, for patients to translate their choice of therapy into a legitimate request, even when they vote with their feet in large numbers. Doctors do not see any danger in the choice except that they worry they might be denying people a more effective option, but, as patients have pointed out, if they need what is perceived to be a more effective option, they can take it alongside LDN anyhow.

My constituent Andrew Barnett, who is highly intelligent, scientifically minded and analytical, has made the assessment that LDN seems to have stopped his disease developing further. The constituents of the hon. Member for Mid Dorset and North Poole (Annette Brooke) have confirmed the same belief. My constituent regrets very much that he did not start using it earlier. If he had done so, perhaps some five years ago, he feels that he would still be working and contributing actively to the economy.

Doctors have to be able to say no to treatment choices for the sake of the patient, but when they have no reasons to deny an option, as is the case with LDN, that should not happen. We should try to ensure that we enable them to prescribe LDN. Doctors all tell us that without the trial, they do not have the confidence to prescribe, so patients face the potential loss of supply of prescriptions if they change doctor, quite apart from the cost of private prescriptions, which is hurtful for many patients who have been reduced to living on income support by sickness or disability.

So, the substance of the debate is about patient access to therapies that cannot get the trials they need for reasons such as not being patentable or the lack of profit in the therapy, especially when the therapy is known to be safe. LDN seems to be the most prominent, in that there are no sensible arguments to deny it to patients who want it and those patients report great satisfaction with it in most cases. It is frankly a disgrace that such options are denied to informed patients who ask for them on the NHS. It would save the NHS so much money to allow this. LDN can be supplied for as little as £17.50 a month, compared with some other expensive drugs, such as £60,000 for Copaxone, £15,000 for Avonex or £90,000 a year for another drug that was recently in the news.

The question is how we can get the trials and get people interested. Academics often rely on backing from pharmaceutical companies to put together their plans and proposals for a research project. It is very difficult to find academics who want to spend that time and energy if they do not know that they will get the backing. They could put in a lot of work without getting any funding for any proposal.

We must face up to the problem of what systems we have in place to provide licensing for drugs such as LDN. One doctor I have talked to, Dr Lawrence from Swansea, tells me that LDN not only seems to have acceptable uses for people with multiple sclerosis but, he feels, has enormous potential for the treatment of cancer. That would be a very worthwhile investigation, considering that we spend so much on looking for answers and on treating the various cancer diseases. Sanctioning the use of LDN would also allow doctors to collect clinical data that could be used to monitor and help prove the effectiveness of the drug.

Naltrexone is already an approved drug at higher doses and research and clinical trials have already shown its effectiveness at low doses to treat auto-immune diseases. Patients have difficulty in getting their GPs to write prescriptions and have to get the treatment privately, but it would be preferable for patients to work with their GPs so that their GPs can monitor them. GPs have had to seek legal advice to find out whether they should be prescribing it and lawyers have advised against it, putting them in a very difficult position.

Among the supporters of LDN are GPs, neurologists and oncologists who have seen patients’ diseases not get worse and there are cases where such specialists have supported its use for the patient and stated that in a written letter to the GP. Even then, the GP has felt unable to prescribe the drug for fear of being considered unprofessional.

Campaigners have worked with local health boards and PCTs to try to determine what knowledge there is about LDN and whether GP practices have heard of it or are using it. The responses came back negative. What can we do so that LDN is offered in addition to other drugs currently prescribed on the NHS? This is about patient choice. It would be nice to be able to make LDN available to patients on a much wider basis, but it is important that patients are monitored by their GPs when using any medication, so we do not simply want a free-for-all. We want the proper medical trials, proof and backing that is needed to show whether it is an effective drug, which will enable it to be made more widely available, but there is a real difficulty, despite the fact that the orphan drug could be a cheap option for the NHS, in funding the sort of research needed to trial it. I return to my initial request and ask the Minister whether there is any way he can make LDN more widely and easily available to patients.