I can't even pronounce it, so don't worry Kath :)
Can't spell -- that was comorbidity.
There have not been a lot of people here treating after 65 but the one I do remember was Andiamo. He had treated about 7 times and was finally successful when he was in a trial for Vertex which is not on the market yet. He didn't seem to have any worse of a time than anyone else. A lot depends on comarbidity at that age. That is, what else do you have that could make treatment harder like heart disease, or diabetes or other risk factors.
I plan to treat again next year if the new PIs are available and I will be 63 then.
frijole