What treatment options for CMML2 with no detected mutations ?

Hello
What are all the treatment options for a 78-yeald old patient with CMML2, with no detected mutations? (BMT is not an option due to age). 13%blasts. Is about to start Azacitidine treatment 7 day per month for 6 month. I would like to know what the other options are (if any) if Azacitidine doesn't work or when it ceases to work.
Are there any options of innovative treatments such as CAR-T or others?
Thank you