As someone who sailed thru 5 years of tamoxifen when pre menopausal as part of the IBIS trial to see if it was worth being used as a preventative for those at high risk pre cancer developing, I agree with Mrs Blue's question - if you can do such a thing?!
I think the secondary ladies are possibly more motivated to cling on to anything and perhaqps put up with more as we have a limited number of options before us and are fighting a definite - those in category 1 are trying to prevent a possibilty, which is a very different mental state to be in.
I sincerely doubt any reasearch is done - they don't even know how many of us secondary ladies there are out there!
Please ladies - don't let this thread deteriorate into a primary v secondary tho - I see potential for that - hope I'm just being pessimistic - it is a valid question Mrs B is asking.