I would encourage anyone who has been maintaining undetected on low dosage for a considerable period of time to gradually lower their dosage even further with the possibility of weaning yourself off of your TKI at some point in the future
Someone on Dasatinib 20mg might begin by skipping every fourth day which would result in a 15mg/day average.
If you are detectable at a low level while maintaining on a low TKI dosage, there is still a very good chance that you can lower your dosage without an adverse effect to your TKI level. Please post your CML history.