HootOwl
Member
Right. Both were delivered intratympanically to mice. Part of the mechanism behind including a poloxamer involves surface tension, and the ability for a substance to continue onward until it meets resistance. Unless there is something severely and fundamentally different in a human cochlea, the same physical process would apply.Preclinical as in not in a live human being? As far as I know it's pretty darn hard to get a drug into the apex when delivered intratympanically. You'll probably need something better. As for Frequency's gel, this is what it said in their prospectus:
FX-322 is our proprietary thermoreversible polymer formulation that is administered through the eardrum, or intratympanically, into the middle ear in a procedure that takes approximately 10 to 15 minutes.
It's probably worth noting that Otonomy is in phase 3 for their IT dexamethasone drug which uses this same poloxamer as a part of their vehicle delivery to treat Meniere's in humans, and has shown to be pretty successful.
You need to be able to get at least below 1000Hz to see those kinds of results, and once you get to 250Hz you're basically already at the tip.