Anyone here fighting hairy cell leukemia? I was first diagnosed in 2012 and had a 7 day, 24/7 course of chemo using cladribine. My remission lasted 4 years, almost to the day. I recently completed another 24/7 course of cladribine and my oncologist says my blood counts are close to normal except for the red cells which are still low. These take the longest to come back. Are risks of secondary cancers, or reactions to the chemo common with hairy cell?