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    The changing regulatory landscape for laboratory developed tests

    The COVID-19 pandemic has highlighted the importance of reliable and accurate diagnostic tests. Laboratory developed tests (LDTs) do not typically require premarket review. The US Food and Drug Administration (FDA) has repeatedly proposed more rigorous regulatory frameworks for LDTs but has been unsuccessful owing to concerns about the impact on test availability and innovation. In this article, the authors describe the existing regulations and consider both sides of the d...