From my understanding, all the DMTs increase your risk of getting cancer - a horrible fact. You have all my sympathy. My sister was diagnosed with breast cancer a few days before Christmas and it has been a very worrying and distressing time for her and the family. She’s now recovering after having a mastectomy.
Like I said, any DMT will increase your risk of getting cancer. If you want more information, you might search the Barts MS Blogspot, where there’s quite a lot of stuff about cancer, MS and DMTs.
Here’s a relevant quote from the Blogspot
“Please note that one of the functions of the immune system is to fight malignancies and when you suppress the immune system you get a higher incidence of secondary malignancies; these tend to come on many years later and predominated by lymphomas and skin cancers.”
That’s actually from
http://multiple-sclerosis-research.blogspot.com/2014/10/offlabel-cladribine.html