Mouse Results5 Jun 2023 21:21
Https://www.scancell.co.uk/Data/Sites/1/media/docspres/agm-presentationnovember-2022_final.pdf
It's worth re-visiting page 11 of last year's AGM presentation showing the mouse results from the pre-clinical research.
If I read this correctly
1 All mice not treated with Modi1 had died by day 28.
2 The best result was for mice treated with Modi1 on day 10 after tumour implant although there was very little difference between mice treated at day 7 to those treated at day 10. The difference is very likely not statistically significant.
3 Of this group 80% were still alive after day 50 (50 days after implant and 40 days after Modi1 dose)
Now, if Burble's rule of thumb (1 mouse day = 40 human days) is correct, 80% of the day 10 group were still alive 2000 (50x40) equivalent human days after implant i.e. about 5 and a half years.
Obviously, these are mouse results with no guarantee that the results will be replicated in a human trial.
However, it's easy to see why Lindy was so excited at the AGM with the very early results at that time.
At this time in November 2022 it was approximately 2 months after the first patient received the full dose of Modi1 (cohort 2 as RNS'ed on Aug 16th) i.e. less than 2 mouse days.
Lindy will no doubt be looking at p values i.e. the probability of achieving the same result by pure chance.
You will notice that for the mice groups treated at day 7 and that at day 10 we has p < 0.0001 i.e. less than 1 hundreth of 1 percent of achieving this result by chance.
As pointed out over the weekend, a lot of trials are looking for a p value of < 0.05 (i.e. 5 percent).
We are now at just less than 10 months after that Aug 16th RNS i.e. about 7.5 mouse days into the trial.
However, let's just say for sake of argument, that the patient recruitment has been at a constant rate over those 10 months, then the average mouse days for the patients recruited so far would be half that of that first cohort 2 patient i.e. less that 4 mouse days.
The other important factor is the number of patients dosed.
So, as this number increases and the average time since first does increases, if the results are good, the p value will keep declining. I am guessing here that Lindy will be keeping a close eye on the overall p value for the trial.
Maybe Lindy will be looking oat more than one p value, one for survival and 1 for tumour regression perhaps.
Just a few ramblings to take my mind off thinking of matron and that cold spoon.
This perhaps gives us some perspective of where we are in the timeline of this trial.