Paediatric high-grade glioma (excluding diffuse midline glioma)
Prepared with OnCo (onco.cc/prep/paediatric-high-grade-glioma/). 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
18 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 H3 G34 mutationand, to exclude diffuse midline glioma, H3 K27 status, IDH1/IDH2, NTRK, ALK, ROS1 and MET fusions in infants, BRAF V600E with CDKN2A deletion, PDGFRA, MYCN and EGFR amplification), 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, child over about three years), which of the standard options do you recommend and why?
- 6.Am I a candidate for Temozolomide, and what side effects should I expect?
- 7.For my situation (infant-type hemispheric glioma with a fusion), which of the standard options do you recommend and why?
- 8.Am I a candidate for Larotrectinib, Entrectinib, Alectinib or related drugs, and what side effects should I expect?
- 9.For my situation (braf v600e-mutant), which of the standard options do you recommend and why?
- 10.Am I a candidate for Dabrafenib + trametinib, Dabrafenib, Trametinib, and what side effects should I expect?
- 11.For my situation (constitutional mismatch repair deficiency), which of the standard options do you recommend and why?
- 12.Am I a candidate for Nivolumab, Pembrolizumab, and what side effects should I expect?
- 13.For my situation (recurrence), which of the standard options do you recommend and why?
- 14.Are there clinical trials I could join, for example of Dabrafenib + trametinib, Larotrectinib, Entrectinib, CAR-T for glioma (IL13Rα2, GD2, EGFRvIII, multi-target)?
- 15.Would a second opinion at a high-volume centre change anything, and can you help arrange it?
- 16.What supportive care (symptom control, nutrition, exercise, mental health, financial help) is available from the start?
- 17.I read that “No systemic therapy has improved survival in H3 G34-mutant or H3- and IDH-wildtype tumours”. How does that affect my plan?
- 18.I read that “How long to continue fusion or BRAF inhibitors in children who respond, and what happens on stopping”. How does that affect my plan?
The words I may hear
- H3 K27M (diffuse midline glioma): A single change in a histone protein that defines diffuse midline glioma, the childhood brain tumour with the fewest treatment options, and now the target of the first approved drug for it.
- Re-irradiation: Giving radiotherapy again to a region that has already been treated, once thought impossible because normal tissues remember the first dose.
- Late effects and survivorship toxicity: Health problems appearing months or decades after treatment ends: heart damage, infertility, second cancers, lymphoedema, dry mouth, memory problems, weak bones.
Tests and results to bring
Newly diagnosed, child over about three years: Maximal safe resection, focal radiotherapy and temozolomide during and after radiotherapy by extrapolation from adult practice; molecular profiling of every tumour.
Biomarker results to ask for: H3 G34 mutation (H3F3A) and, to exclude diffuse midline glioma, H3 K27 status, IDH1/IDH2 (wildtype in most; mutant in some adolescents), NTRK, ALK, ROS1 and MET fusions in infants, BRAF V600E with CDKN2A deletion, PDGFRA, MYCN and EGFR amplification, Mismatch repair protein loss and tumour mutation burden (constitutional mismatch repair deficiency), DNA methylation class.
Scans and tests linked to this cancer: Comprehensive genomic profiling, Germline (hereditary) testing, DNA methylation profiling.
Bring copies of scan reports, pathology and blood results, and a list of every medicine and supplement.
The treatments I may be offered
- Infant-type hemispheric glioma with a fusion: Surgery and fusion-directed therapy: larotrectinib or entrectinib for NTRK fusions, alectinib or lorlatinib for ALK or ROS1 fusions; chemotherapy to defer radiotherapy. (Larotrectinib, Entrectinib, Alectinib, Lorlatinib)
- BRAF V600E-mutant: Dabrafenib plus trametinib (paediatric high-grade glioma cohort 2023; tumour-agnostic approval for BRAF V600E solid tumours from age six). (Dabrafenib + trametinib, Dabrafenib, Trametinib)
- Constitutional mismatch repair deficiency: PD-1 blockade (nivolumab or pembrolizumab) for hypermutant tumours; germline counselling for the family. (Nivolumab, Pembrolizumab, Germline (hereditary) testing)
- Recurrence: No standard; re-resection, re-irradiation, clinical trials including CAR-T and oncolytic virus studies. (Re-irradiation, CAR-T for glioma (IL13Rα2, GD2, EGFRvIII, multi-target))
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.