How can an oncologist monitor the effectiveness of Abemaciclib upon a patient’s cancer? I’m having the treatment but have information about effects on my liver, bones, kidneys, etc. but is there actually a way of monitoring the presence of cancer via a blood test, like in the U.S. where people get the Signatera test done? I don’t think the NHS offers anything apart from a mammogram, but is there anything I can try to access privately in the U.K.?