Stable isotope-labeled internal standards are widely used in laboratory-developed clinical mass spectrometry tests. An equal amount of these internal standards is added to all samples in a batch, ...

The U.S. trade group representing laboratory companies and test manufacturers is suing to block the FDA from increasing its oversight of lab-developed tests, saying the agency overstepped its ...

Folks with cancer that has gene variants or rare diseases often need laboratory-developed tests for information that could guide their treatment when commercial tests don’t exist or aren’t precise ...

Laboratories are just beginning to assess the magnitude of operational changes needed to comply with a new federal rule expanding regulatory oversight of lab developed tests (LDTs). In a major shift, ...

A federal district court has struck a blow for medical innovation and patient empowerment by overruling the Food and Drug Administration's (FDA) misbegotten effort to regulate laboratory-developed ...

The FDA has scrapped a rule that would have allowed the agency to regulate lab-developed tests as medical devices. Under the rule, the FDA would have phased in oversight of laboratory-developed tests ...

A federal judge in Texas ruled that the FDA overstepped its authority when it issued its Final Rule: Medical Devices; Laboratory Developed Tests in May of last year, which said laboratory-developed ...