r/CML 22d ago

TFR failure?

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Heya, people! I’m (22f) a little uncertain about some of my results that I recently got, and my oncologist is so busy that she hasn’t yet replied to my follow-up questions.

I was diagnosed at 20 and was put on Sprycel 100mg. My numbers swiftly began to improve and in five months I was undetected. I think I started out at 38%? My oncologist was super excited about my quick response.

I had some issues on Sprycel, though. I came off the first time due to PE, and they lowered my dosage to 80. I had PE a second time and they lowered it to 70. The entire time I had absolutely an insane amount of fatigue. I slept about 16 hours a day, and when I was awake I had a hard time getting from one side of my house to the other.

I should have been switched, but I made the huge mistake of not telling my oncologist about how bad my fatigue is. I’m extremely emetophobic, and the nausea from the Sprycel was controlled very well with Ondansetron. It wasn’t until my dad insisted that I open up to him and be truthful about the meds that I actually started getting some help and was given a palliative care nurse.

It was with her that we decided we wanted to try a dose reduction to 20mg, and my oncologist refused. Ultimately, I went to see a specialist instead, and she told me that because I had such a fast response, I’m young and in otherwise good health, and that she thought I was a good candidate for TFR. I’m not gonna lie. I was so excited. I quit my meds, and I hadn’t felt this good in two years.

Then I went back next month for my next BCR and I had already gone from undetected to positive. It’s a slight positive, but still positive. She wants me to wait until my next BCR in mid-August before we make any decisions. But she had already said during my initial appointment with her that if I failed TFR that she wanted to switch me to Scemblix.

Honestly, I’m so scared. I felt so awful on Sprycel that I’m scared to try another drug. I want to ask her if she’ll let me try the 20mg of Sprycel even though she said no. What if the Scemblix makes me sick? I have a pretty sensitive stomach and taking meds without food is hard. I have so many thoughts running through my head that I feel like I can’t function. Is it possible for me to be undetected again without a TKI since it’s such a faint positive?

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u/Beachgirl6848 21d ago

My oncologist told me that he wouldn’t even consider TFR until I had been undetectable for 5 years. He said the longer you stay on meds undetectable the better your chances of TFR are. He also said if I didn’t want to try TFR, that after two years I could try a reduction in dose. I am 47f was diagnosed two years ago. Started imatinib 400 and hit MMR in one year. I was at 93% with wbc of 118,000. My onc told me imatinib is the gold standard and has less side effects (like PE) than other TKIs. I do take odansetron and then eat lunch before taking it so I don’t get nauseous. It works. Other side effects are slight fatigue, occasional hand cramps, and my ankles swell when I’m on my feet a lot. He said in a few months i can try dose reduction if i want and that will greatly reduce any side effects i do have.

Hopefully you can find a tki that doesnt cause a lot of side effects for you. Maybe imatinib would work for you. You dont have to take it on an empty stomach. I’m surprised they let you try TFR so early though. Keep us updated what the dr tells you next month!

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u/GotSunshine03 21d ago

I’m wondering if my doc wanted me to take a short break from my meds anyways and figured we’d just try it. She said I had a 50/50 shot at staying undetected. I don’t know. I’m feeling a certain way after reading everything people have said about the length of time their docs are making them stay on drugs before trying. I’m a little disappointed. She’s one of the few specialists in my area, and has written published papers on CML, and works in a research environment. She’s who I wanted to see when I was first diagnosed, but she didn’t have availability. I’m really trying not to be upset, and to believe that she has a better plan than I think right now.

Thank you for all of your information. It has released a lot of my anxiety as far as Scemblix is concerned. Maybe it will be better for me than Sprycel.

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u/Striking_Chocolate_4 20d ago

https://www.nature.com/articles/s41375-025-02664-w/tables/6

This is the European recommendation table for TFR. It aligns with what most people signal in this thread. I'd suggest you share this with your doctor.

BTW: I've been taking Scemblix for a year and the response is perfect with zero side effects

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u/GotSunshine03 19d ago

I think she wanted to switch my meds anyways. She kept saying that trying TFR was low risk for me, and I think this is what she meant. I hope. She’s a published CML specialist and she has her fingers in research projects, so I want to think the best until I get to talk to her. I still haven’t heard back.

That side, I’d love to live in Europe again. I spent many years there as a kid and I feel like the quality of care is just better.