'Over-the-counter' genetic testing: what does it really mean for primary care?

Area of Science:

• Genetics and Genomics
• Public Health
• Primary Care Medicine

Background:

• The Human Genetics Commission's report, 'More Genes Direct,' highlights the potential influence of over-the-counter (OTC) genetic testing on the National Health Service (NHS).
• Advancements in genetic research for complex common diseases (e.g., dementia, cancer, cardiovascular disease) are generating risk estimates.
• The increasing availability of direct genetic tests without medical referral necessitates an evaluation of their implications for healthcare systems.

Purpose of the Study:

• To assess the relevance of current genetic research on complex common diseases for risk prediction.
• To explore the implications of over-the-counter genetic testing for primary care.
• To provide recommendations regarding the integration of direct genetic testing into healthcare.

Main Methods:

• Review of current genetic research pertaining to complex common diseases.
• Analysis of the potential impact of over-the-counter genetic testing on primary care services.
• Consideration of the limitations of existing genetic testing technologies and their commercial applications.

Main Results:

• Genetic research offers potential risk estimates for conditions like dementia, cancer, and cardiovascular disease, but with current limitations.
• Primary care must understand the constraints of genetic testing and its OTC commercialization.
• Family history remains a crucial tool for risk assessment in primary care settings.

Conclusions:

• Caution is advised regarding the premature implementation of over-the-counter genetic testing due to the lack of a robust evidence base.
• Healthcare providers need to be informed about the capabilities and limitations of genetic testing.
• Continued reliance on traditional risk assessment methods, such as family history, is important alongside emerging genetic information.