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Requiring genetic knowledge: a principled case for support

Published online by Cambridge University Press:  02 January 2018

Victoria Chico*
Affiliation:
The University of Sheffield
*
Victoria Chico, School of Law, Bartolomé House, The University of Sheffield, Winter Street, Sheffield S3 7ND, UK. Email: v.chico@sheffield.ac.uk

Abstract

Should people be required to know information about themselves that arises from their genetic test? This question is highly relevant given the NHS's plans to sequence 100,000 whole genomes before 2017. The approach to this issue in the USA generated significant opposition to requiring knowledge, on the basis that it interferes with autonomy. This piece presents a different perspective, arguing that requiring knowledge may not undermine the legal conception of autonomy, giving reason to doubt that it would be unlawful to require people to have genetic information about themselves. Following this, the piece presents an alternative principled position that might support a legal recognition of the interest in not having information about oneself; namely that of preventing personal harm. However, this approach runs into difficulties if the reasons for requiring knowledge are also based on preventing personal harm. The argument considers how interests might be balanced in this competing harms context.

Type
Research Article
Copyright
Copyright © Society of Legal Scholars 2015 

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Footnotes

*

I am extremely grateful to Dr Mark Taylor, Professor Aurora Plomer and the two anonymous reviewers for their comments, which have enabled me to improve this work.

References

1. On the Genomics England website, Sir Mark Caulfield, Chief Scientist to the project, claims that ‘the work of GeL could be to transform the NHS provision of diagnostic tests and then care to a whole range of patients. This could … achieve earlier diagnosis and more effective intervention for patients most at risk from developing very serious illnesses.’ See http://www.genomicsengland.co.uk/prof-mark-caulfield-reflects-on-the-impact-the-100k-genome-project-could-have-on-the-nhs/ (accessed 16 July 2014).

2. Many possible examples could be posed that are not limited to cancer.

3. There is also significant uncertainty about how we should manage disclosure to the tested person's relatives. See my forthcoming empirical work on this issue: T Heaton and V Chico ‘Attitudes towards the sharing of genetic information with at-risk relatives: Bayesian ordinal regression with random effects’.

4. See the following projects: Deciphering Developmental Disorders (DDD) study, http://www.ddduk.org/ (accessed 17 September 2014); Specialist Pathology: Evaluating Exomes in Diagnostics (SPEED) Study, University of Cambridge, http://bioresource.nihr.ac.uk/rare-diseases/study-specialist-pathology-evaluating-exomes-in-diagnostics/ (accessed 23 April 2014). Whole exome sequencing refers to the technique that selectively sequences the protein coding regions of the genome.

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6. Ibid, at 568.

8. Green et al, above n 5, at 568.

9. Or for that matter what it considered the potential harms to be. Did these solely concern not being able to access treatment for the particular genetic condition? Or also not being able to minimise related risks that other treatments might pose for someone with that (asymptomatic) genetic condition? See below for a discussion of these two types of harm.

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14. The plans for care.data – a database of GP records – were delayed in February 2014 following a public backlash against the use of patient information. Tim Kelsey, NHS England National Director for Patients and Information, said ‘We paused it because there was this enormous outcry, and uncertainty about what was happening.’ L Donnelly The Telegraph 6 June 2014.

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17. Green et al, above n 5, at 568.

18. Ibid, at 568.

19. The ACMG recommends feedback relating to 24 conditions on the basis that they are ‘disorders where preventative measures and/or treatments are available’. Ibid, at 576. But see also above n 9.

20. Seventeen different types of cancer are listed. Some of these mutations cause multiple cancers such as Li–Fraumeni and Lynch syndromes, while others are linked with one or two cancers, such as breast, ovarian or bowel cancer.

21. Six largely cardiac conditions are listed. Five of these are cardiomyopathies and rhythm disturbances. I am including familial hypercholesterolaemia along with the cardiac disorders because of its implication in atherosclerotic heart disease.

22. Although the ACMG now offers the opportunity to opt out of receiving incidental findings, it still recommends disclosure in relation to the 24 conditions on the list on the basis of the ability of disclosure to prevent harm. See https://www.acmg.net/docs/Release_ACMGUpdatesRecommendations_final.pdf (accessed 16 July 2014).

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26. Hereinafter I will refer to this conception of harm as ‘related risks’.

27. Some medical risks that might be relevant for people with genetic mutations on the ACMG minimum list are as follows. Pregnancy is a very high-risk state for people with Marfan syndrome, because the rise in blood pressure can trigger an aortic dissection. This information might be considered relevant in offering any assisted conception service. Patients with (asymptomatic) cardiomyopathy should avoid a number of drugs, such as some antidepressants, and common non-steroidal, anti-inflammatory drugs such as ibuprofen. These are contraindicated because they are associated with increased risk of death and cardiovascular morbidity. Gislason, GH et al ‘Increased mortality and cardiovascular morbidity associated with use of nonsteroidal anti-inflammatory drugs in chronic heart failure’ (2009) 169 Arch Intern Med 141149.CrossRefGoogle ScholarPubMed

28. See eg Chester v Afshar [2005] 1 AC 134 for how failure to disclose relevant risks might interfere with autonomy. Another paper could be written considering how the law might respond to a patient's claim that their autonomy was interfered with when they weren't informed of a risk of treatment, where information about that risk arose in their WGS but eventuated because their genetic mutation put them at an elevated risk in a related treatment. Of course the patient refused to know about the risk, but there is no evidence that a patient's refusal to know about the risk will protect a clinician who does not disclose relevant risks in a negligence action.

29. It is possible to argue that their choice has been removed, but that argument is not one that is made in this paper.

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31. See below for a detailed discussion of predictions of refusal of medical treatment.

32. Mental Capacity Act 2005 s 1 (4).

33. Although knowledge of relevant risks is an important aspect of legal autonomy in consent to medical treatment – see, in particular, Chester v Afshar [2005] 1 AC 134 – if a patient demands treatment that their doctor does not want to provide because they consider it too risky, the law does not recognise a person's autonomy to have been breached where their demand for treatment is overridden. See eg Re J (A Minor) (Wardship: Medical Treatment) [1990] 3 ALL ER 930; R v Cambridge Health Authority ex p B [1995] 2 ALL ER 129. Given that, in the law, there is a clear distinction between how not respecting refusals and demands for treatment might interfere with patient autonomy, this part of the discussion focuses on refusal of treatment.

34. The law regularly allows refusals of treatment on the basis of autonomy: Re B (Consent to Treatment: Capacity) [2002] 1 FLR 1090; St Georges Healthcare NHS Trust v S [1999] Fam. 26; Re C (Adult: Refusal of Treatment) [1994] 1 WLR 290.

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37. See, in particular, Chester v Afshar [2005] 1 AC 134 and Re B (Consent to Treatment: Capacity) [2002] 1 FLR 1090.

38. Above n 34. However, there are many who criticise this. See eg Foster, C Choosing Life, Choosing Death: The Tyranny of Autonomy in Medical Ethics and Law (Oxford: Hart Publishing, 2009).Google Scholar

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42. Re T (Adult: Refusal of Treatment) [1993] Fam. 95 Lord Donaldson at 102.

43. Re B (Consent to Treatment: Capacity) [2002] 2 FLR 1090; Chester v Afshar [2005] 1 AC 134; Birch v University College London Hospital NHS Foundation Trust [2008] EWHC 2237 (QB).

44. In some cases, the patient's capacity has been questioned with little clear basis. See, in particular, Re B (Consent to Treatment: Capacity) [2002] 1 FLR 1090; St Georges Healthcare NHS Trust v S [1999] Fam. 26; Re C (Adult: Refusal of Treatment) [1994] 1 WLR 290; Re W (Adult: Refusal of Treatment) [2002] EWHC 901. I am very grateful to the insightful anonymous reviewer who helpfully pointed out that the MCA's main interest is truncated capacity/autonomy, which might reduce the authority with which it can speak about untruncated autonomy, thereby leading me to also consider judicial treatment of the clearly capacitated.

45. MCA 2005 s 1 (4).

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47. Ibid, at 27 (my emphasis).

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50. Ibid, at 527.

51. Chester v Afshar [2004] UKHL 41 Lord Steyn at 18.

52. Ibid, Lord Steyn at 24. Furthermore, the English courts have recently held that patients who are not given adequate information about possible alternative treatments will not have sufficient information to make an autonomous choice. See Birch v University College London Hospital NHS Foundation Trust [2008] EWHC 2237 (QB).

53. MCA 2005 s 3 (1) (a), (b) and (c). The provisions of the MCA 2005 do not only relate to the ability to make decisions about medical treatment. The Act covers decision making in a wider context, including any decisions that relate to a person's welfare or property and affairs: s 16 (1) (a) and (b).

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55. Ibid, at 418.

56. There is significant authority in English law that the patient has a right to know information relevant to their medical treatment. In Sidaway v Board of Governors of the Bethlem Royal Hospital and the Maudsley Hospital [1985] AC 871, the House of Lords felt that disclosing the risks of medical treatment is part of the doctor's ordinary duty of care. In recent years there has been a move towards a more patient-centred assessment of the content of the doctor's duty to provide information. However, there is no similar legal duty not to disclose information that the patient does not want.

57. Harris and Keywood, above n 54; Rhodes, RGenetic links, family ties, and social bonds: rights and responsibilities in the face of genetic knowledge23 (1998) J Med & Phil 1030.CrossRefGoogle ScholarPubMed

58. Harris and Keywood, above n 54, at 419–420.

59. Ibid, at 419–420.

60. Ibid, at 419–420.

61. See eg Laurie, G Genetic Privacy: A Challenge to Medico-Legal Norms (Cambridge: Cambridge University Press, 2002).CrossRefGoogle Scholar

62. Re B (Consent to Treatment: Capacity) [2002] 2 FLR 1090, for supportive comment, see also Airedale NHS Trust v Bland [1993] AC 789 Lord Keith at 857 and Lord Browne-Wilkinson at 882.

63. Green et al, above n 5, at 568. This is also the approach taken in relation to clinical exome sequencing at the Radboud University Nijmegen Medical Centre. Above n 12.

64. This approach is not without problems, especially in the clinical context. But this argument is not considered here.

65. Green et al, above n 5, at 568.

66. In the legal sense at least.

67. The argument here is, of course, that there is significant doubt about whether it does.

68. For the conditions on the ACMG list, the presence of the genetic mutation still leaves significant uncertainty as to whether the condition will manifest. For example, 55–65% of women who inherit a harmful BRCA1 mutation and 45% of women who inherit a harmful BRCA2 mutation will develop breast cancer by age 70: see http://www.cancer.gov/cancertopics/factsheet/Risk/BRCA (accessed 18 July 2014).

69. Green et al, above n 5, at 586.

70. That is, would we want to prevent risky pregnancy?

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83. This mutation is on the ACMG's recommended feedback list.

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