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frrol

09/16/23 9:02 AM

#430956 RE: frrol #430951

Regarding TEAEs, the most recent SA article's author said the company made a mistake in the Dec 1 readout PR which read: "The incidence of treatment emergent adverse events (TEAEs) was similar in the active and placebo arms with dizziness being the most common TEAE." A couple things on this: our CTAD deck showed the dizziness stats themselves, so the PR was wrong vs the deck: dizziness was not "similar". But such a mistake is relatively minor, because we were shown the data and could tell the PR was simply poorly written. (Ie, careful investors weren't completely misled.) The mention of "dizziness" was just really in the wrong sentence. (It should have been in the next sentence, regarding those TAEAs >=7.5% threshold.)

The company states that the TEAEs "were predominantly mild or moderate". This just stays in the bounds of 'true'. Dizziness is just one of many of the observed AEs, hence "predominantly". But while dizziness is not like "heart attack", it does increase fall risk (very important in geriatric patients). And it did cause titrations downward, which reduces drug exposure and potential efficacy. It also made trial results harder to interpret for designing dosing (very important for any drug, and a challenge for most future 2-73 trials). So dizziness is important.

But again, better than "heart attacks", or "ARIAs".

Joseph_K

09/16/23 6:08 PM

#431044 RE: frrol #430951

frrol, what tells you that

This time around, from the given CIs it's clearly an appropriate 2-tail z-test.

The slides from the December presentations showed a CI % and the range, just like this time around. The range numbers were very different, apparently because they were based on the percent decline, not on the score decline. I'm a novice and trust your word the new CIs are based on the two-tail test, but I'm wondering what the tip-off was.