it is the E and the A in the regimes FEC, FEC-T, AC, EC, or E-CMF that do the work they are known as anthracyclines and are second generation chemo which has been found to be very effective in treating TNBC… when they are researching they always start off testing people with secondaries before rolling it out and then testing on primary cancer so thats why some people who are diagnosed with mets are on different regimes.
taxanes are new and more recently been researched and found to be very effective in secondary TNBC as well as anthracylcines and some would argue that perhaps they are just as effective… there are ongoing tirals for them… but so long as you have at least 4 epirubicin or (adriamycin) or you have at least 3 in combination with tax then i think the difference between them is small…
there are other drugs getting trialed too which are platinums which are having some good effects, but it all takes a while to research… there may at some point be a consensus but unless something NICE makes an actual guideline its unlikely to change as it will be down to individual oncs recommendations… a bit like many things are treated by GPs depending on their own experience.
a few things to bear in mind all you TNBC ladies… that even though the mortality rate is higher in those with TNBC the average overall survival for TNBC to 10 years is 77%, for non TNBC its over 90% so its still lower than ER BCs but probably a lot higher than many of you think.
also the risk of recurrence is highest in the first 3 years… if you havent had a relapse by then its unlikely to happen and if you reach 5 years you are pretty much considered to be cured (obviously nothing is 100%).
TNBC has only been identified for around 5 or 6 years so it may take some time to get all the information.
and there are at least two types of TNBC… there are ones which as basal like which are positive for cytokeratin 5/6 and/or for EGFR1 (HER1), where as there are a rarer subset known as 5 neg which are negative for both these other factors… so things like this may sway the type of treatment you have too.
and they may find other markers in the future which could potentially have a bearing on treatment options.
and for those with a family history TNBC tends to occur more so in BRCA1 mutation carriers, although you can get it if your not a carrier… it also more likely to occur at younger age of onset (which again could be linked to family history) but women over 50 and even over 55 do also get it, but not so frequently.
hope i havent bombarded you with science… i just find the whole thing very fascinating.
lulu x