Philadelphia chromosome-positive acute lymphoblastic leukaemia in children (Ph-positive ALL)
Prepared with OnCo (onco.cc/prep/all-paediatric-ph-positive/). Orientation, not medical advice; your team knows your case.
My details
What I know, what is unclear, changes to discuss
Saved in this browserMy questions
15 on the sheet- 1.What is my exact diagnosis, stage, and grade, and which tests established them?
- 2.Which biomarkers have been tested on my tumour (for example BCR::ABL1 by FISH or PCR, BCR::ABL1 transcript quantification during therapy, Flow cytometry MRD at end of induction and consolidation, ABL1 kinase domain mutation testing at relapse, IKZF1 deletion), and what were the results?
- 3.Which subtype is my cancer, and does that change the recommended treatment?
- 4.Is germline (inherited) genetic testing recommended for me or my family?
- 5.For my situation (newly diagnosed), which of the standard options do you recommend and why?
- 6.Am I a candidate for Dasatinib, Imatinib, Vincristine or related drugs, and what side effects should I expect?
- 7.For my situation (poor residual disease response), which of the standard options do you recommend and why?
- 8.Am I a candidate for Dasatinib, Imatinib, Blinatumomab, and what side effects should I expect?
- 9.For my situation (relapsed or refractory), which of the standard options do you recommend and why?
- 10.Am I a candidate for Ponatinib, Blinatumomab, Tisagenlecleucel or related drugs, and what side effects should I expect?
- 11.Are there clinical trials I could join, for example of Ponatinib, Blinatumomab, BCR::ABL1 TKI + blinatumomab (chemotherapy-free Ph+ ALL), Transplant-free Ph-positive ALL for MRD-negative adults?
- 12.Would a second opinion at a high-volume centre change anything, and can you help arrange it?
- 13.What supportive care (symptom control, nutrition, exercise, mental health, financial help) is available from the start?
- 14.I read that “Whether chemotherapy-free kinase inhibitor plus blinatumomab regimens can replace intensive chemotherapy in children”. How does that affect my plan?
- 15.I read that “Kinase domain resistance mutations and the lack of paediatric approval for ponatinib”. How does that affect my plan?
The words I may hear
- Ph-positive ALL: Ph-positive ALL is acute lymphoblastic leukaemia carrying the Philadelphia chromosome.
- BCR::ABL1 kinase domain mutations (T315I and others): When a CML drug stops working, the leukaemia has usually changed the shape of the pocket the drug fits into; sequencing the BCR::ABL1 kinase domain names the mutation, and the name tells the doctor which drug still fits: most mutations respond to another second-generation drug, but T315I responds only to ponatinib or asciminib.
- Philadelphia chromosome (Ph+, BCR::ABL1): A swapped piece between chromosomes 9 and 22 that fuses two genes into BCR::ABL1, a runaway kinase.
- B-ALL risk groups (NCI criteria, ETV6::RUNX1, hyperdiploidy, hypodiploidy, iAMP21, IKZF1, CNS status): Childhood leukaemia treatment is chosen from a risk table built over fifty years: age and white count at diagnosis (the NCI criteria), the chromosome pattern in the blasts (favourable ETV6::RUNX1 and high hyperdiploidy, unfavourable hypodiploidy, iAMP21, KMT2A, Ph-positive and Ph-like), whether leukaemia cells are in the spinal fluid, and above all how fast the leukaemia clears in the first month.
- Minimal / molecular residual disease (MRD): Cancer still present after treatment but too small to see on scans, detected by blood or marrow tests.
Tests and results to bring
Newly diagnosed: Imatinib or dasatinib started in induction and continued throughout intensive BFM or EsPhALL-type chemotherapy; intrathecal therapy without cranial irradiation.
Biomarker results to ask for: BCR::ABL1 by FISH or PCR (p190 and p210 transcripts), BCR::ABL1 transcript quantification during therapy, Flow cytometry MRD at end of induction and consolidation, ABL1 kinase domain mutation testing at relapse, IKZF1 deletion (adverse co-lesion).
Scans and tests linked to this cancer: Multiparameter flow cytometry MRD, NGS-based MRD (clonoSEQ and molecular MRD).
Bring copies of scan reports, pathology and blood results, and a list of every medicine and supplement.
The treatments I may be offered
- Poor residual disease response: Blinatumomab to clear residual disease, then allogeneic transplant in first remission with a kinase inhibitor continued afterwards. (Allogeneic stem cell transplantation, Dasatinib, Imatinib, Blinatumomab, NGS-based MRD (clonoSEQ and molecular MRD))
- Relapsed or refractory: Switch kinase inhibitor by mutation (ponatinib for T315I, used off label in children), blinatumomab or CD19 CAR T-cells, inotuzumab ozogamicin, then transplant. (Ponatinib, Blinatumomab, Tisagenlecleucel, Inotuzumab ozogamicin, Allogeneic stem cell transplantation, BCR::ABL1 TKI + blinatumomab (chemotherapy-free Ph+ ALL))
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.