I was dx w/ cml in July 2012 and am currently on 100 mg Sprycel. I initially had a couple PCR tests that were not IS and did not get my first IS PCR until 8/27/12. Here are my PCR dates and results of tests using IS figures:
1) 8/27/12 - 60.2% IS
2) 10/11/12 - 20.3% IS
3) 11/6/12 - 8.3% IS
4) 2/18/13 - 0.118% IS
All the above tests were done at Quest Lab.
As background I should mention that I had immune throbmocytopenia (ITP) for over 20 years prior to getting cml (lucky me - 2 blood diseases!). My normal platelet count was about 50 K, which never bothered me or hindered my lifestyle.
I should also mention for completeness that after a couple weeks on Sprycel my platelets tanked so I had to go off S until my platelets went up. In the meantime I got a splenectomy, actually as treatment for the ITP, which made my platelets go up to about 150K. I restarted on Sprycel on 9/25/12 at 50 mg, then went to 75 mg for 2 weeks, then went back to 100 mg S. So now all is good in the platelet department and things are going good.
My initial FISH test in June 2012 had the following results, looks like they tested 200 cells with the probe:
1) Negative for monosomy 5 and partial deletion of long arm of chromosome 5 including EGR1
2) Negative for monosomy 7 and partial deletion of chromosome 7 including D7S522
3) Negative for trisomy 8
4) Negative for deletion of D20S108 on chromosome 20 at q12
I never had a followup FISH test, but I am scheduled for one in June, along with another PCR plus some other minor stuff (CBC, LDH, metabolic panel, etc). My hemo also said he wants to do a 1-year bone marrow test as well at that time.
My question is: does it matter that I did not get any additional FISH tests, in light of the fact that my latest PCR = 0.118%, i.e., lower than 1%? Also, does my PCR indicate that I have achieved cytogenic response, or does that need to come from a 0% FISH result?
thx for any help on this.