this post was submitted on 22 Nov 2023
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Memantine, donepezil, etc. should be started much earlier in this population. We need better MCI tests. My grandmother who watched both of her parents die of Alzheimer's was passing her clinical MCI long after we had taken her keys because she was repeating questions over and over, and her house was covered in post-it notes to remind her about her post-it notes.
Our current clinical assessments for MCI are really bad.
Those are symptomatic medications. They don't alter the course Alzheimer's in any way. You won't die any sooner or later from Alzheimer's whether you're on or off those. I'm not saying don't offer them to people who are symptomatic and want them. I just point this out so people don't stress too much about these. Many people don't find them helpful and that's fine. If they do find them helpful, that's fine too. They have side effects, don't alter the disease course, so they may not be right for everyone.
You could argue maybe some of the newer anti amyloid medications theoretically slow progression some, but the evidence on those is very weak at the moment. I'm still surprised either of them were approved. The first one that was approved led to most members of the fda scientific advisory panel resigning (they had recommend against). I personally would have liked to see much better hard evidence before we embark on an epic project of doing amyloid pet scans, frequent monitoring mris, regular infusions, all while adding risks of brain inflammation and brain hemorrhages, for millions of people every year, all at the cost of hundreds of billions of year (if this actually started to be done across the board). I think in our desperation to address some of these devastating diseases we may inadvertently expose people to too many risks and costs for too little benefit.
Who said anything about replacing clinical MCI exams with invasive scans? (I'm terrible; I didn't read the article. I wouldn't agree with replacing exams with invasive scans.) We just need better MCI exams. The ones we have now are flawed. They are not catching people who are clearly already symptomatic, and who therefore should be started on one of the existing options for small molecule drugs.
Also all of our current research uses the existing MCI exams for assessment and often endpoint, which deeply complicates things if the exams don't even catch what they were intended to catch.
These are the requirements to use the new anti amyloid drugs (the ones that purportedly do change disease progression, unlike current small molecule drugs), which need amyloid pet imaging plus regular mris to monitor for complications. Sorry if I was unclear.