FDA Once Again Stands Athwart Biomedical Innovation, Yelling ‘Stop!’

“As earlier threatened, the Food and Drug Administration (FDA) has just issued new rules that will significantly slow down the development of new diagnostic tests. Specifically, the agency requires that all laboratory-developed tests (LDTs) be submitted to its regulators before the tests can be offered to patients and physicians. As I explained earlier, LDTs are in vitro diagnostic (IVD) tests for clinical use that are designed, manufactured, and performed by individual laboratories. They can diagnose illnesses and guide treatments by detecting relevant biomarkers in saliva, blood, or tissues; the tests can identify small molecules, proteins, RNA, DNA, cells, and pathogens. For example, some assess the risks of developing Alzheimer’s disease or guide the treatment of breast cancer.”

” “Laboratory developed testing services are not medical devices and subjecting them to medical device regulation will harm patient access to needed testing and compromise innovations that drive personalized medicine,” said American Clinical Laboratory Association President Susan Van Meter in a statement. “The rule will limit access to scores of critical tests, increase health care costs, and undermine innovation in new diagnostics.””

https://reason.com/2024/04/29/fda-once-again-stands-athwart-biomedical-innovation-yelling-stop/

What science still doesn’t know about the five senses

“Sound enters our ears, light enters our eyes, chemicals splash up in our nose and mouth, and mechanical forces graze our skin. It’s up to our brains to make sense of what it all means and create a seamless conscious experience of the world.
Illusions teach us that our reality isn’t a direct real-time feed coming from our ears, eyes, skin, and the rest of our bodies. Instead, what we experience is our brain’s best guess.

Sometimes, when the information coming in to our sensory organs is confusing, our brains have to edit parts out. Other times, our brains have to fill in some gaps with outright guesses. Our reality, ultimately, is constructed by our brains, built from our imperfect senses, and informed by our past experiences.”