That's the most Folfiri sessions that I recall.
One member here and CSN, luvinlife, extended her Folfiri-Avastin series with IV vitamin C and vitamin K3 into the 70s, by about 3 yrs past the point of quitting, but she was KRAS mutant, where vitamin C might be more favorable to Kras mutants. Some others have had intermittent chemo runs over 100 conventional cycles.
I've seen 2-3 long term conventional xeloda and maintenance users around 7 yrs wearing thin on chemo but didn't see many details.
One member at CSN went 6-7 yrs on erbitux and erbitux-irinotecan, after Folfox-Avastin, along with several surgeries. Current details a little blurry, he's out doing other things at ~11-12 yrs.
We're approaching 6 yrs daily oral chemo with too many adjuncts, natural and pharmaceutical, with excellent QoL and a lot of stability (nothing scannable yet), with some marker cycling. Two surgeries long ago. Probably mixed Kras or Kras cells eliminated from a single site.
There are various literature reports on oral chemo over 10 years, most reduced doses of xeloda in ADAPT in a clinical series.
Basically if your metastasis is reasonably under control or very slow spread, whether by adjuncts or not, going for the best physical removal of isolated mets or sites is a goal of many. Staying on some kind of adjunctive treatments, even if changed chemically, as close to surgery as possible has also seemed important.
The CEA and CA19-9 preop peaks often correlate with some adjuncts and experience.
watchful, active researcher and caregiver for stage IVb/c CC. surgeries 4/10 sigmoid etc & 5/11 para-aortic LN cluster; 8 yrs immuno-Chemo for mCRC; now no chemo
most of 2010 Life Extension recommendations and possibilities + more, some (much) higher, peaking ~2011-12, taper to almost nothing mid 2018, mostly IV C