The DNA-based test looks for early signals of over fifty different tumors.

Federal health advisers just endorsed a highly anticipated new medical screening tool. This simple blood test is designed to spot signs of various hidden cancers. It works on apparently healthy people with just a single blood draw. Grail Inc. developed the technology, known as the Galleri test.

The test does not definitively diagnose cancer on its own. Instead, it looks for a biological signal that someone might have a tumor. Patients who receive a positive result require immediate additional medical care. The FDA advisory panel voted 7-2 that the potential benefits outweigh the risks.

The panel noted the technology still needs significantly more clinical study.

Experts warned against false assurances or raising unnecessary medical alarms. However, finding more early-stage cancers in the general population offers massive benefits. This marks the first time a federal group backed this experimental approach. The FDA is not legally bound by the panel's advice.

If approved, it could pave the way for widespread US adoption. Currently, standard cancer screenings look for one kind of tumor at a time. Grail’s test can pick up signs of dozens of hard-to-detect cancers. This includes lethal variations like liver and aggressive ovarian cancer.

Critics warn the test might miss a significant number of actual cancers.

There is also a risk of flagging a potential cancer in healthy patients. The primary study showed the test detected about one-third of diagnosed cancers. Consumer advocates worry patients might ignore real symptoms after a negative test. They stress it must supplement routine screenings, not replace them.

People in the US can already buy the test for around $700 cash. Official FDA approval would likely open the door to private insurance coverage. The medical community remains cautiously optimistic about the technology.

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