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Thursday, October 29, 2026Oct 29

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FDA to start regulating lab-developed tests

WASHINGTON – The Food and Drug Administration announced Thursday it will begin regulating laboratory-developed tests, a growing class of medical diagnostics that have never before been subject to federal oversight.

The agency says its proposal is designed to make sure that the tests used to diagnose cancer, heart disease and thousands of other conditions are safe, accurate and reliable.

“Inaccurate test results could cause patients to seek unnecessary treatment or delay and sometimes forgo treatment altogether,” said FDA Commissioner Dr. Margaret Hamburg, on a call with reporters. “These devices need to be accurate and reliable.”

In recent years scientists have documented laboratory-based tests that provided incorrect results for diagnosing conditions like autism, Lyme disease and antibiotic resistance.

Hamburg said the agency will introduce a proposal to regulate these tests within the next 60 days.