Genetic Testing

In Rosamond Rhodes, Leslie Francis & Anita Silvers (eds.) Blackwell Guide to Medical Ethics. (Ch. 23, pp. 407-424, 2006).

Purpose This systematic review aims to identify factors that influence parents’ decisions regarding pediatric diagnostic and predictive genetic testing (DT/PT). Factors are integrated into a conceptual model of decision-making. Implications for genetic counseling, research, and ethics are derived. Methods PubMed, PsychInfo, WebofScience and references of related reviews were searched for original publications between 2000 and 2023. Extracted factors were categorized into an existing model. Results Of 5843 publications, 56 met inclusion criteria. The included studies differentiate between DT, traditional, and expanded (...) PT and describe factors impacting parental decisions on both to have the child genetically tested and to be informed about additional findings. Factors included: 1. benefits/hopes, 2. worries/concerns, 3. values and beliefs, 4. individual circumstances, and 5. emotional states. Conclusion Our work extends an existing empirical decision model of family decisions about genome sequencing to genetic testing in pediatrics in general, adding the categories “individual circumstances” and “emotional states”. The factors can be further integrated into the Health Belief Model; the importance of emotional states is reflected in dual-process theories, such as Fuzzy Trace Theory. Research is required on emotional states, differences between DT and PT, parents’ decisions about result disclosure, and dyadic variables as decision-making predictors. (shrink)

Although the “right not to know” is well established in international regulations, it has been heavily debated. Ubiquitous results from extended exome and genome analysis have challenged the right not to know...

This chapter provides a comprehensive overview of the ethical issues associated with population screening from the perspective of public health. Key principles and frameworks for ethical analysis are explained and discussed, including assessment of individual and collective interests in public health. Ethical dimensions of population screening are examined with close attention to complex overlapping ethical tensions. Section one briefly describes what is meant by ‘screening’ and reviews criteria for introducing screening programmes, section two presents examples of programmes and section three (...) presents and critiques ethical issues arising from screening. (shrink)

Informed consent is a central concept for empirical and theoretical research concerning pregnancy management decisions and is often taken to be one of the more fundamental goals of the profession of genetic counseling. Tellingly, this concept has been seen by disability communities as salutary, despite longstanding critiques made by disability activists, advocates, and scholars concerning practices involved in genetic counseling more generally. In this chapter, we show that the widespread faith in informed consent is misleading and can be detrimental to (...) the practice of genetic counseling as guided by concerns of justice and equity. We proceed in two steps. First, we explain how informed consent is flawed as a practical concept. Second, we show how the inadequacy of informed consent illuminates the animating core of disability critiques of genetic counseling: the issue of ableism. We argue that the problem of ableism cannot be solved with informed consent because it is not merely a problem of information, but also of epistemic schemas. We suggest that what we call critically informed consent is better suited to move genetic counseling from being aware of the problem of ableism to becoming actively anti-ableist. (shrink)

Background Autism self-advocates’ views regarding genetic tests for autism are important, but critical questions about their perspectives arise.Methods We interviewed 11 autism self-advocates, recruited through autism self-advocacy websites, for 1 h each.Results Interviewees viewed genetic testing and its potential pros and cons through the lens of their own indiviudal perceived challenges, needs and struggles, especially concerning stigma and discrimination, lack of accommodations and misunderstandings from society about autism, their particular needs for services, and being blamed by others and by themselves (...) for autistic traits. Their views of genetic testing tended not to be binary, but rather depended on how the genetic test results would be used. Interviewees perceived pros of genetic testing both in general and with regard to themselves (e.g., by providing “scientific proof” of autism as a diagnosis and possibly increasing availability of services). But they also perceived disadvantages and limitations of testing (e.g., possible eugenic applications). Participants distinguished between what they felt would be best for themselves and for the autistic community as a whole. When asked if they would undergo testing for themselves, if offered, interviewees added several considerations (e.g., undergoing testing because they support science in general). Interviewees were divided whether a genetic diagnosis would or should reduce self-blame, and several were wary of testing unless treatment, prevention or societal attitudes changed. Weighing these competing pros and cons could be difficult.Conclusions This study, the first to use in-depth qualitative interviews to assess views of autism self-advocates regarding genetic testing, highlights key complexities. Respondents felt that such testing is neither wholly good or bad in itself, but rather may be acceptable depending on how it is used, and should be employed in beneficial, not harmful ways. These findings have important implications for practice, education of multiple stakeholders, research, and policy. (shrink)

In Germany, the debate on preimplantation and prenatal testing is heavily influenced by the idea of an antagonism between prospective parents and their potential children. Underlying this antagonism is the assumption that prospective parents follow an ableist logic and do not regard the lives of children with a chronic illness as “worth living”. Taking the example of two rare genetic illnesses, Marfan Syndrome and Cystic Fibrosis, we investigate how persons who themselves are affected by these conditions view preimplantation or prenatal (...) testing for their condition in the context of reproductive decision-making. Our empirical research shows that chronically ill patients’ appreciation of their own life as a “life worth living” does not always translate into an unequivocal wish and readiness to give birth to a child that is affected by their condition as well and argue that taking their views into consideration adds an additional level of complexity to the debate. (shrink)

Sahan et al draw much needed attention to the ethical complexity encountered by clinical laboratory scientists. They point out that, on the one hand, clinical laboratories are increasingly required to analyse ‘much broader swathes’ of genomic information than had previously been the case and to consider how best to report—or not report—the results that arise. On the other hand, they also note how clinical laboratory services are supporting genomic testing that is transitioning from specialist to mainstream services, such that questions (...) of whether and how to report genomic information must ‘accommodate the considerations of an expanded multidisciplinary team (MDT)’.1 These two factors, among others, increase both the ‘range and complexity’ of ethical dilemmas faced by clinical laboratory scientists. This trajectory will continue in line with trends towards further mainstreaming of genomic medicine, and the use of genomic sequencing (generating ‘much broader swathes’ of information) over more targeted approaches. In this challenging environment, Sahan et al contend that the notion of ‘ethical preparedness’ (EP) has a crucial role to play. Here ‘EP’ is understood as a state of both systems and individuals that is characterised by the ‘capability, opportunity and motivation to respond to the ethical issues arising in a particular clinical situation, as well as being able to anticipate ethical concerns in advance in areas where practice is rapidly evolving’.1 Notably, cultivating the …. (shrink)

Genomic screening at population scale generates many ethical considerations. One is the normative role that people’s preferences should play in determining access to genomic information in screening contexts, particularly information that falls beyond the scope of screening. We expect both that people will express a preference to receive such results and that there will be interest from the professional community in providing them. In this paper, we consider this issue in relation to the just and equitable design of population screening (...) programs like reproductive genetic carrier screening (RGCS). Drawing on a pluralistic public health ethics perspective, we claim that generating and reporting information about genetic variants beyond the scope of the screening program usually lacks clinical, and perhaps personal, utility. There are both pragmatic and ethical reasons to restrict information provision to that which fits the stated purpose of the program. (shrink)

Preimplantation genetic testing for monogenic disease (PGT-M) can detect both childhood and adult-onset diseases. Unlike most childhood-onset genetic disorders, adult-onset conditions are typically dominant (presenting in 50% of offspring) and are associated with disease-free life until some point in adulthood. Examples discussed include BRCA mutation-associated cancers and Huntington’s disease. Ethical questions explored include: (1) the implications on a patient’s own moral value when they use PGT-M to rid a future child of a trait they possess, (2) exercising reproductive autonomy to (...) undergo PGT-M, and to select an affected (or unaffected) embryo balanced against professional autonomy and procreative beneficence, (3) timing for information-sharing with future children, (4) the potential that an embryo biopsy may harm the embryo or pregnant person, (5) a duty to maximize benefit and minimize harm to a future child and (6) justice issues given the high cost of PGT-M and the fact that it is frequently not covered by insurance. Patients should receive extensive counseling by genetic counsellors and physicians that involves the exploration of testing options other than PGT-M. The ASRM Ethics Committee considers PGT-M for adult-onset disease ethically justifiable when there are no known interventions for the disease or when the available interventions are ineffective or significantly burdensome (Fert Steril 109:989–992 2018). Physicians may decline to transfer embryos that carry genetic mutations but should share this position with the patient(s) in a pre-IVF consult and should remain open to referring to other qualified providers in order to preserve patient autonomy. (shrink)

Congenital deafness is one of the most common birth defects reported. Approximately 70% of congenital deafness is non-syndromic, and approximately 80% of non-syndromic hearing loss results from a genetic cause. Middleton et al.’s1998 study highlighted the negative attitudes of culturally Deaf individuals towards genetic testing for genes known to cause hearing loss. While studies concerning genetic testing for deafness genes reference Middleton’s study, to our knowledge a re-evaluation of the attitudes of Deaf individuals towards genetic testing has not been conducted (...) recently. The purpose of this study is to re-establish attitudes of Deaf individuals towards genetic testing of genes known to cause hearing loss. A computer-based questionnaire was distributed to members of the Deaf community. Responses of participants were recorded and analyzed. The primary investigator then attended Deaf community events and the 2015 Alabama Association of the Deaf Conference, and recruited individuals interested in participating in the study. The surveys were distributed to these individuals and their anonymous responses were analyzed. Our results show there are more positive attitudes within the Deaf community towards genetic counseling, genetic testing, and prenatal testing of genes known to cause hearing loss than were previously documented, although negative attitudes are still present. Additionally, our study shows there is a desire among members of the Deaf community to learn more about and potentially receive these services, despite the fact they are rarely offered by healthcare providers. (shrink)

In recent years, preimplantation genetic testing (PGT) of IVF embryos have gained much traction in clinical assisted reproduction for preventing various genetic defects, including Down syndrome. However, such genetic tests inevitably reveal the sex of IVF embryos by identifying the sex (X and Y) chromosomes. In many countries with less stringent IVF regulations, information on the sex of embryos that are tested to be genetically normal is readily shared with patients. This would thus present Muslim patients with unintended opportunities for (...) sex selection based on personal or social biases without any pressing need or valid medical reason. Additionally, there are other patients who claim using PGT for preventing genetic defects as a pretext or “convenient excuse,” with a secret intention to do sex selection when it is banned in their home country. Currently, non-medical sex selection is a highly-controversial and hotly debated issue in Islam, because there is generally a strong preference for having sons over daughters due to widespread cultural norms of elderly parents depending on their sons for financial support, as well as the need for male heirs to continue the family lineage within the backdrop of local patriarchal cultures. There is a risk of gender imbalance and social disequilibrium occurring in Islamic societies due to prevalent sex selection. Hence, the question is whether opportunistic sex selection with PGT would contravene Islamic ethics and principles, which will thus be discussed here. (shrink)

It is unarguable that the implementation and use of noninvasive prenatal testing (NIPT) should be critical and appropriate. After all, decisions that influence when and how to have children have ut...

An increasing number of European research projects return, or plan to return, individual genomic research results (IRR) to participants. While data access is a data subject’s right under the General Data Protection Regulation (GDPR), and many legal and ethical guidelines allow or require participants to receive personal data generated in research, the practice of returning results is not straightforward and raises several practical and ethical issues. Existing guidelines focusing on return of IRR are mostly project-specific, only discuss which results to (...) return, or were developed outside Europe. To address this gap, we analysed existing normative documents identified online using inductive content analysis. We used this analysis to develop a checklist of steps to assist European researchers considering whether to return IRR to participants. We then sought feedback on the checklist from an interdisciplinary panel of European experts (clinicians, clinical researchers, population-based researchers, biobank managers, ethicists, lawyers and policy makers) to refine the checklist. The checklist outlines seven major components researchers should consider when determining whether, and how, to return results to adult research participants: 1) Decide which results to return; 2) Develop a plan for return of results; 3) Obtain participant informed consent; 4) Collect and analyse data; 5) Confirm results; 6) Disclose research results; 7) Follow-up and monitor. Our checklist provides a clear outline of the steps European researchers can follow to develop ethical and sustainable result return pathways within their own research projects. Further legal analysis is required to ensure this checklist complies with relevant domestic laws. (shrink)

Multiple studies show that periodic reanalysis of genomic test results held by clinical laboratories delivers significant increases in overall diagnostic yield. However, while there is a widespread consensus that implementing routine reanalysis procedures is highly desirable, there is an equally widespread understanding that routine reanalysis of individual patient results is not presently feasible to perform for all patients. Instead, researchers, geneticists and ethicists are beginning to turn their attention to one part of reanalysis—reinterpretation of previously classified variants—as a means of (...) achieving similar ends to large-scale individual reanalysis but in a more sustainable manner. This has led some to ask whether the responsible implementation of genomics in healthcare requires that diagnostic laboratories routinely reinterpret their genomic variant classifications and reissue patient reports in the case of materially relevant changes. In this paper, we set out the nature and scope of any such obligation, and analyse some of the main ethical considerations pertaining to a putative duty to reinterpret. We discern and assess three potential outcomes of reinterpretation—upgrades, downgrades and regrades—in light of ongoing duties of care, systemic error risks and diagnostic equity. We argue against the existence of any general duty to reinterpret genomic variant classifications, yet we contend that a suitably restricted duty to reinterpret ought to be recognised, and that the responsible implementation of genomics into healthcare must take this into account. (shrink)

Precision medicine is an emerging approach to treatment and disease prevention that relies on linkages between very large datasets of health information that is shared amongst researchers and health professionals. While studies suggest broad support for sharing precision medicine data with researchers at publicly funded institutions, there is reluctance to share health information with private industry for research and development. As the private sector is likely to play an important role in generating public benefits from precision medicine initiatives, it is (...) important to understand what the concerns are and how they might be mitigated. This study reports outcomes of a deliberative method of citizen engagement in Singapore that asked whether sharing precision medicine data with private industry would be permissible, and if so, under what circumstances. Findings from this citizens’ jury suggest sharing with industry would be permissible under certain conditions that are set out in nine recommendations. Implications of the recommendations and their underlying assumptions for policy decision makers are discussed. This study aligns with prior international studies which found conditional acceptance for data sharing with private industry, a public benefit requirement, specific reluctance to share with insurance companies and an emphasis on accountability and transparency to demonstrate trustworthiness. However, our results differ from prior studies in that opt-in consent did not dominate the deliberations as jurors were able to set it aside as an assumed prerequisite for participation in a precision medicine programme. (shrink)

We would like to thank the authors of the excellent Open Peer Commentaries on our target article, “Implementing Expanded Prenatal Genetic Testing: Should Parents Have Access to Any and All Fetal Ge...

What is the future of genetic testing during pregnancy likely to look like? Given that the patterns of use of genetic testing in neonatology tend to precede, and thus predict, patterns of prenatal...

Anti-selection occurs when information asymmetry exists between insurers and applicants. When an applicant knows they are at high risk of loss, but the insurer does not, the applicant may try to use this knowledge differential to secure insurance at a lower premium that does not match risk.

RésuméJe soutiendrai que la façon dont Davidson rend compte de l'intention pure peut être comprise comme une analyse de l'intention comme étant relative à un jugement dans une perspective en première personne. Selon Davidson, avoir la pure intention de faire A, c'est formuler un jugement tout bien considéré qu'il est désirable de faire A. Dans cette analyse anti-réductionniste, l'intention est traitée comme un état irréductible du sujet. J’établirai une comparaison entre cette analyse et celle de Wright et je montrerai comment (...) la position de Davidson peut être considérée comme une analyse non-réductionniste rapportant l'intention au jugement, selon les directions suggérées par Wright. J'expliquerai ensuite comment cette analyse peut aider à éclaircir diverses difficultés qui se présentent dans la conception que Davidson se fait ultérieurement de la signification et du contenu mental. (shrink)

In their analysis of how much fetal genetic information prospective parents should be able to access, Bayefsky and Berkman determine that parents should only be able to access information th...

Bayefsky and Berkman argue in favor of evidence-based policy development for expanded prenatal genetic testing. They propose to identify what kinds of information pregnant persons, their par...

In Vayena’s article, ‘direct-to-consumer (DTC) genomics on the scales of autonomy’, she claims that there may be a strong autonomy-based argument for permitting DTC genomic services. In this response, I point out how the diminishment of one’s genetic privacy can cause a relevant autonomy-related harm which must be balanced against the autonomy-related gains DTC services provide. By drawing on conceptual connections between privacy and the Razian conception of autonomy, I show that DTC genetic testing may decrease the range of valuable (...) options individuals possess, which impacts the extent to which would-be consumers can exercise their autonomy. (shrink)

Background: Preimplantation genetic testing is used in In Vitro Fertilization to identify genetic abnormalities in embryos. Genetically defective embryos are not transferred to the uterus, resulting in a higher percentage of healthy babies born. Aim: to study the ethical problems of using preimplantation genetic testing in Orthodox Christian discourse. Materials and methods: An analysis of the provisions of Orthodox ethics, expressed in the church resolutions of the Russian Orthodox Church and the general church teaching on morality, was carried out in (...) the context of their application for the biotic analysis of preimplantation genetic testing. Results: Despite the fact that PGT can have positive implications for the choice of the mode of delivery later on and for the earliest possible initiation of intrauterine treatment, this practice meets with certain ethical objections in Orthodox Christian discourse. Identified genetic abnormalities of embryos in PGT encourage women to refuse to transfer the "diseased" embryo, leading ultimately to its death. The absence of intrauterine interaction between a mother and an embryo makes such a choice easily feasible. Given that Orthodox Christianity affirms the beginning of human life from the moment of conception, refusing to become pregnant with a "sick embryo" would be tantamount to its murder. In addition, among the ethical problems of PGT is the possibility of the use thereof for the embryo selection according to sex or other chosen characteristics, which also belongs to immoral actions in Orthodox Christianity. Conclusion: Thus, the possibility for Orthodox couples to participate in assisted reproductive technology must exclude the use of pre-implantation genetic testing, which is ethically unacceptable within Orthodox Christianity. The couple starting IVF should be ready to give birth and bring up such a child, who will be the result of the fertilization in vitro. (shrink)

Reproductive genetic carrier screening is increasingly being offered more widely, including to people with no family history or otherwise elevated chance of having a baby with a genetic condition. There are valid reasons to reject a prevention-focused public health ethics approach to such screening programs. Rejecting the prevention paradigm in this context has led to an emphasis on more individually-focused values of freedom of choice and fostering reproductive autonomy in RCS. We argue, however, that population-wide RCS has sufficient features in (...) common with other public health screening programs that it becomes important also to attend to its public health implications. Not doing so constitutes a failure to address the social conditions that significantly affect people’s capacity to exercise their reproductive autonomy. We discuss how a public health ethics approach to RCS is broader in focus than prevention. We also show that additional values inherent to ethical public health—such as equity and solidarity—are essential to underpin and inform the aims and implementation of reproductive carrier screening programs. (shrink)

In the United States in particular, one institution that consistently resisted the social momentum to implement eugenic public policies was the Catholic Church. From the Catholic perspective, everyone is worthy, and the focus should be on figuring out how best to care for each individual human being, with access to scarce resources given first to those who need them the most. This chapter addresses the ethical challenge of eugenics and genetic technologies, including preconception and pre-natal genetic testing and genome editing, (...) from the perspective of the medical moral tradition of the Roman Catholic Church. This perspective can contribute to a broad and rich description of human nature and experience, including many types of knowledge and experience, because genetic interventions can and will affect human beings on all levels of their existence. (shrink)

Critiques of prenatal genetic testing as eugenic have been debated for decades, but this strident debate can obscure ways in which persistent eugenic aspects of prenatal genetic testing can and should be addressed. Comparing arguments and professional guidelines regarding prenatal testing for genetic conditions with those regarding sex selection can provide useful insights into the ways prenatal genetic testing is offered by clinicians and administered by government programs. This chapter addresses the predominant funding models for prenatal genetic testing and ways (...) in which these models could be improved to support broader goals of maternal and child health. (shrink)

Scientific advancements in the genetic testing and screeningGenetic testing and screening of children have provided answers for some and afforded therapies and preventive guidance for others. These benefits have the potential to revolutionize preventive medicine and categorically change outcomes in specific diseases. Ethical challenges emerge, however, when the benefits of testing come with a price related to its inherent ambiguities and uncertainties. Testing a child at risk for a condition of adult onset, for example, has generated tremendous debate and though (...) generally discouraged, continues to plague clinicians dealing with the nuanced narrative at the bedside. In this chapter we unpack some of the arguments for genetic testing and screeningGenetic testing and screening in children. We use the best interest standardBest interest standard to explore these arguments and acknowledge when it falls short of helping to answer the question “what is ethically permissible?”. We explore the risks and potential harmsHarm done by performing or not performing a genetic test in a child, including psychological effects such as guilt. We highlight the importance of the child’s voice with such concepts as assentAssent, informed consentInformed consent, capacityCapacity and disclosureDisclosure. We explore prenatalPrenatal and newbornNewborn screening, and we address the increasing complexity of the patient as consumer of knowledge and manager of health choices. Finally, we aim to give the clinician a practical guide for determining what is ethically permissible and how to navigate decisions regarding genetic testing and screeningGenetic testing and screening of children. We include these convictions in the context of the North American perspective and offer areas of international discrepancy. (shrink)

Background Genomic research on neurodevelopmental disorders (NDDs), particularly involving minors, combines and amplifies existing research ethics issues for biomedical research. We performed a review of the literature on the ethical issues associated with genomic research involving children affected by NDDs as an aid to researchers to better anticipate and address ethical concerns. Results Qualitative thematic analysis of the included articles revealed themes in three main areas: research design and ethics review, inclusion of research participants, and communication of research results. Ethical (...) issues known to be associated with genomic research in general, such as privacy risks and informed consent/assent, seem especially pressing for NDD participants because of their potentially decreased cognitive abilities, increased vulnerability, and stigma associated with mental health problems. Additionally, there are informational risks: learning genetic information about NDD may have psychological and social impact, not only for the research participant but also for family members. However, there are potential benefits associated with research participation, too: by enrolling in research, the participants may access genetic testing and thus increase their chances of receiving a (genetic) diagnosis for their neurodevelopmental symptoms, prognostic or predictive information about disease progression or the risk of concurrent future disorders. Based on the results of our review, we developed an ethics checklist for genomic research involving children affected by NDDs. Conclusions In setting up and designing genomic research efforts in NDD, researchers should partner with communities of persons with NDDs. Particular attention should be paid to preventing disproportional burdens of research participation of children with NDDs and their siblings, parents and other family members. Researchers should carefully tailor the information and informed consent procedures to avoid therapeutic and diagnostic misconception in NDD research. To better anticipate and address ethical issues in specific NDD studies, we suggest researchers to use the ethics checklist for genomic research involving children affected by NDDs presented in this paper. (shrink)

The development of new methods in the field of prenatal testing leads to an expansion of information that needs to be provided to expectant mothers. The aim of this research is to explore opinions and attitudes of gynecologists in Germany, Poland and Russia towards access to prenatal testing and diagnostics in these countries. Semi-structured interviews were conducted with n = 18 gynecologists in Germany, Poland and Russia. The interviews were analyzed using the methods of content analysis and thematic analysis. Visible (...) in all three countries is a connection of prenatal medicine with the politically and socially contentious issue of pregnancy termination. Respondents in Poland and Russia concentrated on the topic of inadequate resources. Quality of information for expectant mothers is an important point in all three countries. Only in Germany was the issue of language barriers in communication raised. With regard to non-invasive prenatal testing (NIPT) respondents in Germany focused on the ethical issues of routinization of testing; in Poland and Russia they concentrated on fair access to NIPT. Challenges in all three countries arise from structural factors such as imprecise and prohibitive regulations, lack of resources or organization of healthcare services. These should be addressed on a political and medico-ethical level. (shrink)