I want to know how people feel about this.
If you wanted to match the trial solution as close as possiuble.
https://patents.google.com/patent/EP3108879A1
That is the patent. And this is what they were using as a vehicle for the trials according to it.
The formulation described in Example 4 was studied in a clinical trial to evaluate its pharmacokinetic profile, safety, and tolerability.
Example 4: Anhydrous 5% w/w Solution
[0152] - A 5 weight percent (w/w) solution of cortexolone-17α-propionate having the components shown in Table 4, below, was prepared by solubilizing the therapeutic agent in the mixture of solvents followed by the addition of the antioxidant (ascorbyl palmitate) and the emulsifier (polysorbate 80).
Table 4
Component Amount (g/100 g) Amount (Kg/ 15 Kg batch)
Cortexolone-17α-propionate 5.00 0.75
Diethylene glycol monoethyl ether 31.50 4.725
Alcohol (Ethanol) 31.50 4.725
Ascorbyl palmitate 0.50 0.075
Polysorbate 80 0.10 0.015
Propylene glycol 31.40 g 4.710
So essentially
Propylene glycol = PG,
Diethylene glycol monoethyl ether = Transcutol,
Alcohol (Ethanol) = Ethanol
They added a few other things, which I'm debating doing. But I'm not sure how it will mix. This solution is mixed for 5%, so I guess you could cut it down to 2.5% for daily application twice a day which was relatively effective from the Breezula trials. Anhydrous solution means it lacked water and from what I read water made effectiveness lower. It's somewhere in that patent. (see next post)
I want to see what Ascorbyl palmitate (antioxidant) and Polysorbate 80 (emulsifier) do for the solution, as in, if they are necessary or you can just use PG/Eth/Trans. I wanted to try to emulate what they did as close as possible.
What do you guys think, am I being pedantic?