Results day

My mum gets her results tomorrow of her latest ct scan. She is on her second line chemo for secondary bowell cancer. She was first diagnosed 6 years ago and had bowell op 2010 liver op 2011 and first set of chemo in 2012. Cancer showed back up at the beginning of 2016 in liver and adrenal gland. Chemo doesn't seem to be working this time???? Any help???