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Saturday, September 03, 2022 4:54:14 AM
From the peer reviewed P2a paper SupplementaryFigures.pdf document
c. Boxplot of mean concentration groups of Blarcamesine (ANAVEX2-73) in the plasma (High: ≥ 4ng/mL; Medium: < 4ng/mL and ≥ 2.06 ng/mL; Low: <2.06 ng/mL) is linked to an improved ADCS-ADL response from baseline (ie. Higher change in ADCS-ADL). Significant p-value (<0.05) of Mann-Whitney U test. (N=24 patients having a ADCS-ADL value at Week 57)
The Bootstrapped data plot refers to this methodology: Introduction to Bootstrapping in Statistics with an Example
Bootstrapping is a statistical procedure that resamples a single dataset to create many simulated samples. This process allows you to calculate standard errors, construct confidence intervals, and perform hypothesis testing for numerous types of sample statistics. Bootstrap methods are alternative approaches to traditional hypothesis testing and are notable for being easier to understand and valid for more conditions.
If one reads and think about the full explanation in this short paper, it should be obvious that n=32, while it may be representative of the overall AD population, could also be skewed in some significant way and still internally with bootstrapping applied look as if it is representative of the overall population. Doing bootstrapping on a larger sample, say even double or certainly on 509 patients would be a more reliable indicator that we understand our patient sample is representative of the overall population distribution.
One extreme analogy I like, is that the cosmos at large is very uniform and boring, where over time entropy (disorder) increases., Looking at it zoomed in on much smaller scales like planetary systems and even smaller just our planet Earth, one finds low entropy pockets vastly different from the mean such as humans and the human brain.
Now turn to slide 13 of same presentation, the poster below and then the intermittent dosing patent for more context. Then contemplate why perhaps another Precision Medicine P3 AD trial might be needed - of course is also might not be needed, but imo less likely:
![](http://investorshub.advfn.com/uimage/uploads/2020/1/7/hoxcxDose_Exposure.png)
![](http://investorshub.advfn.com/uimage/uploads/2019/3/4/jymprTolerability.png)
Anavex2-73 for the treatment of alzheimer's disease
Contemplated dosage regimens include administering to the subject a pharmaceutical composition comprising ANAVEX2-73 according to an intermittent dosing regimen of at least two cycles, each cycle comprising (a) a dosing period during which a therapeutically effective amount of said pharmaceutical composition is administered to said patient and, thereafter, (b) a resting period. In some embodiments the dosing period and the resting period are of the same duration or are of different durations.
Attention is brought to the dosing period and the resting period in the range of a lower limit of about 1 day, 2 days, 3 days, 4 days, 5 days, 6 days, 7 days, 8 days, 9 days, 10 days, 11 days, 12 days, 13 days, and 14 days to an upper limit of about 28 days, 27 days, 26 days, 25 days, 24 days, 23 days, 22 days, 21 days, 20 days, 19, days, 18 days, 17 days, 16 days, 15 days, and 14 days. Also noted is the dosing period of between about 1 day and 12 days and the resting period is between about 1 day and 12 days with particular reference to a dosing period is 12 days and resting period is 12 days. Such regimen is usefully employed wherein the therapeutically effective amount of said pharmaceutical composition of ANAVEX2-73 is about 1 mg to about 60 mg and particularly about 30 mg to about 50 mg, and particularly for oral dosage forms. Also contemplated are ANAVEX2-73 dosages of about 3 mg to about 5 mg and particularly with intravenous administration.
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