I got your PM
I've just asked about location because there are some immunotherapy trials (immunotherapy is no chemotherapy) for Stage III, but not in your area, at the moment.
Because of what you said, she's NED at the moment. So the chemotherapy would be adjuvant.
You say that your mom is fragile (and that she may be not well predisposed to chemo, right). The alternative "chemo or not chemo" should be re-think, in her case, then. Even if she's only 57 years old, she can demand to be treated with a less harsh regimen -as if she was elderly.
So, a regimen with only intravenous 5-FU and leucovorin only (without oxaliplatin or irinotecan; that is, no Folfox or Folfiri) would be possible and in the lines of the standard of care. Even better, after year 2000, that regimen (intravenous 5-FU and leucovorin) has been determined to be equivalent, regarding effectiveness, to capecitabine (=
Xeloda, which is chemotherapy but in pill form). For her, it may feel like she's not doing chemotherapy. If the side effects are too much, the dose can be lowered.
In fact, she can also op to receive Folfox BUT ask her onc for a reduced dose of the oxaliplatin in the combo (that's the harsher component there). That is, she can have Folfox with the oxali at the 80% of the normal dose, or even %60.
In any of those cases, or other alternatives the oncologist should provide, the doses can be lowered until she feels comfortable with that. (That could be even better, in terms of results, that having chemotherapy at the present MTD (maximum tolerated doses): for a line of research, the idea of 'hit harder' is a bad idea -certain subset of cancer cells become resistant *because* of the too harsh chemotherapy. So who knows.)
And she always can stop, of course.
Check the NCI page, scroll down to "Chemotherapy regimens after 2000 -Capecitabine)
http://www.cancer.gov/cancertopics/pdq/ ... ection_125You may also find of interest for you the information in this thread (all the pages):
viewtopic.php?f=1&t=39924