Unfortunately, no other class of drug class has worked, and the traditional delivery methods (ie - pill form) caused measurable hearing damage, just from the trial periods.
If you take the oral version (as opposed to the patch version) you can get it from India (where the patents have expired). A site I've used in the past that's reliable is AllDayChemist. Search for Selegiline and you can get it for as cheap as 18 cents per 5mg tablet.
Good luck!
Edit: Sorry, read below that you need the trans-dermal version.
Good luck!
Edit: Sorry, read below that you need the trans-dermal version.