"A perfect society"- Swedish policymakers' ethical and social views on preconception expanded carrier screening

Attitudes of professional stakeholders towards implementation of reproductive genetic carrier screening: a systematic review

Reproductive genetic carrier screening (RGCS) for hundreds of different genetic conditions is technically available for prospective parents, but these tests have not been integrated in a public health policy except for specific sub-groups. We aimed to provide an overview of the perspectives of multiple professional stakeholder groups in order to enhance a responsible implementation of population-based reproductive genetic carrier screening. We conducted a systematic literature search using eight online databases focussing on studies that were published from January 2009 to January 2021. We selected articles dealing with attitudes and opinions from different professional stakeholders, in particular healthcare professionals and policymakers, on how to implement a policy about carrier screening for a reproductive purpose. We identified 18 studies that met our inclusion criteria. Based on our inductive analysis, we identified ten themes categorized in both clinical and program management challenges: ensuring availability of RGCS to all couples who request the test, embedding RGCS as a test offer before pregnancy, providing clear and reliable information, ensuring voluntary participation, developing genetic counselling pre- and post-testing (after positive or negative result), avoiding psychological harm, ensuring equal access, avoiding social pressure, educating and involving a broad spectrum of non-genetic health care professionals, and promoting an independent non-commercial organisational structure. We highlight one major stumbling block on how to responsibly inform couples about hundreds different genetic conditions within constraints regarding time and ability of non-genetic professionals. We promote further research to tackle the issues brought up by this systematic review through pilot studies. Trial Registration: PROSPERO International Prospective Register of Systematic Reviews PROSPERO 2021 # CRD42021233762; https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=233762 .

Societal implications of expanded universal carrier screening: a scoping review

Carrier screening aims to identify couples at risk of conceiving children with a recessive condition. Until recently, carrier screening was primarily offered ancestry-based. Technological advances now facilitate expanded universal carrier screening (EUCS). This scoping review aimed to map EUCS's potential societal implications based on both theoretical studies and empirical evidence. To this aim, we performed a CoCites search to find relevant articles, including articles describing carrier screening for at-risk populations, based on five selected query articles. Forty articles were included. Three main potential societal implications were identified: (1) unwanted medicalization, (2) stigmatization and discrimination of carriers and people affected with the conditions screened and (3) challenges in achieving equitable access. Within these themes, potential positive implications are reduction of ethnic stigmatization in ancestry-based offers and increased equity. Potential negative implications are reinforcement of disability-based stigmatization, less possibility for developing expertise in healthcare and societal pressure to partake in screening. Empirical evidence on all these implications is however scarce. In conclusion, both positive and negative potential societal implications of implementing EUCS, primarily theoretical, were identified, even in at-risk groups where evidence is mostly lacking. Empirical research in EUCS pilots is needed to identify which societal implications are likely to occur and therefore should be overcome when implementing EUCS.

Health practitioners' perceptions of the barriers and enablers to the implementation of reproductive genetic carrier screening: A systematic review

Background

As interest in reproductive genetic carrier screening rises, with increased availability, the role of healthcare practitioners is central in guiding uptake aligned with a couples' values and beliefs. Therefore, practitioners' views on implementation are critical to the success of any reproductive genetic carrier screening programme.

Aim

To explore healthcare practitioners' perceptions of the barriers and enablers to implementation.

Materials & Methods

We undertook a systematic review of the literature searching seven databases using health practitioner, screening and implementation terms returning 490 articles.

Results

Screening led to the inclusion of 26 articles for full‐text review. We found three interconnected themes relating to reproductive genetic carrier screening: (i) use and impact, (ii) practitioners' beliefs and expectations and (iii) resources.

Discussion

Barriers and enablers to implementation were present within each theme and grouping these determinants by (a) community for example lack of public interest, (b) practitioner for example lack of practitioner time and (c) organisation for example lack of effective metrics, reveals a preponderance of practitioner barriers and organisational enablers. Linking barriers with potential enablers leaves several barriers unresolved (e.g., costs for couples) implying additional interventions may be required.

Conclusion

Future research should draw on the findings from this study to develop and test strategies to facilitate appropriate offering of reproductive genetic carrier screening by healthcare practitioners.

What is already known?

Availability of reproductive genetic carrier screening is rising.

Screening is often focused on ethnically specific conditions or for those with a family history of disease.

Commonly, carriers do not have family history of disease.

What does this review add?

Identifies practitioner barriers to implementation of reproductive genetic carrier screening, for example, beliefs and expectations.

Matches identified practitioner barriers to enablers to implementation.

Highlights where additional implementation support is required, for example, lack of practitioner confidence.

Genetic Counseling, Personalized Medicine, and Precision Health

Millions of individuals in the United States will have their exomes and genomes sequenced over the next 5 years as the use of genomic sequencing technologies in clinical care grows and as initiatives in personalized medicine and precision health move forward. As a result, we will see a shift away from the patient population of early adopters who pursued direct-to-consumer (DTC) testing and paid thousands of dollars to get their genomes sequenced and toward a different and more diverse set of test takers. Early data suggest that these individuals will have different motivations for pursuing genomic sequencing and will be less knowledgeable about and less confident of the benefits of genetic testing. To serve this growing population, genetic counselors must understand our future patients as well as the changing landscape of genomic testing, DTC offerings, and population sequencing initiatives.

Values and value conflicts in implementation and use of preconception expanded carrier screening - an expert interview study

Background

Endeavors have been made to found and incorporate ethical values in most aspects of healthcare, including health technology assessment. Health technologies and their assessment are value-laden and could trigger problems with dissemination if they contradict societal norms. Per WHO definition, preconception expanded carrier screening is a new health technology that warrants assessment. It is a genetic test offered to couples who have no known risk of recessive genetic diseases and are interested pregnancy. A test may screen for carrier status of several autosomal recessive diseases and X-linked at one go. The technique has been piloted in the Netherlands and is discussed in other countries. The aim of the study was to examine values and value conflicts that healthcare experts recounted in relation to the discussion of implementation and use of preconception ECS in Sweden.

Methods

We interviewed ten experts, who were associated with influencing health policymaking in Sweden. We employed systematizing expert interviews, which endeavor to access experts’ specialist knowledge. There were four female and six male informants, of which four were physicians, three bioethicists, one a legal expert, one a theologian and one a political party representative in the parliament. The participants functioned as members of two non-governmental bodies and three governmental organizations. We employed thematic analysis to identify themes, categories and subcategories.

Results

Two main themes surfaced: values and value conflicts. The main categories of Respect for persons, Solidarity, Human dignity, Do no harm, Health and Love formed the first theme, while values conflicting with autonomy and integrity respectively, constituted the second theme. Concepts relating to respect for persons were the most commonly mentioned among the participants, followed by notions alluding to solidarity. Furthermore, respondents discussed values conflicting with Swedish healthcare ones such as equality and solidarity.

Conclusions

The experts highlighted values and concepts that are distinctive of welfare states such as Sweden and delineated how preconception ECS could challenge such values. Moreover, the analysis revealed that certain values were deemed more substantive than others, judging by the extent and detail of inference; for example, respect for persons and solidarity were on top of the list.