My father aged 69, had his MM detected in January 2024 with M spike at 2.73 He had 1q gain. He was on VRD treatment and M spike had reached 0.72 by April in just 3 months time. Bortezomib was stopped after total 5 months due to early signs of peipheral neutropathy. And Bortezomib was stopped and he continued with Dex(20mg) 2 times a month and Lenalidomide (10mg). August M protein was 0.56 Few days back, he complained of backache and as was the plan of doing M protein test every 3 months, we did and it has increased to 1.2 Is it very concerning? Has anybody had a similar journey? Would be very useful to understand the same? Thank you!