Oligodendroglioma, IDH-mutant and 1p/19q-codeleted
Prepared with OnCo (onco.cc/prep/oligodendroglioma/). 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 IDH1 or IDH2 mutation, Whole-arm 1p/19q codeletion, TERT promoter mutation, CIC and FUBP1 mutations, CDKN2A/B homozygous 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.For my situation (grade 2, residual or recurrent, not needing radiotherapy), which of the standard options do you recommend and why?
- 7.Am I a candidate for Vorasidenib, and what side effects should I expect?
- 8.How do the results of INDIGO apply to someone like me?
- 9.For my situation (grade 2, high risk, and grade 3), which of the standard options do you recommend and why?
- 10.Am I a candidate for Procarbazine, Lomustine (CCNU), Vincristine or related drugs, and what side effects should I expect?
- 11.How do the results of RTOG 9402 and EORTC 26951 apply to someone like me?
- 12.For my situation (recurrence), which of the standard options do you recommend and why?
- 13.Am I a candidate for Temozolomide, Lomustine (CCNU), Bevacizumab (glioblastoma use), and what side effects should I expect?
- 14.Are there clinical trials I could join, for example of Vorasidenib, Safusidenib, DNA methylation profiling?
- 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 “Whether temozolomide can replace PCV without losing survival (CODEL)”. How does that affect my plan?
- 18.I read that “How to sequence vorasidenib, chemotherapy and radiotherapy over a disease course of decades”. How does that affect my plan?
The words I may hear
- Extent of resection (RANO resect classes): How much of a brain tumour the surgeon removes, measured on an MRI scan soon after the operation.
- Re-irradiation: Giving radiotherapy again to a region that has already been treated, once thought impossible because normal tissues remember the first dose.
Tests and results to bring
Newly diagnosed: Maximal safe resection and molecular diagnosis with 1p/19q testing; observation is reasonable after gross total resection of a grade 2 tumour in a younger patient.
Biomarker results to ask for: IDH1 or IDH2 mutation, Whole-arm 1p/19q codeletion (FISH, array or methylation-based copy number), TERT promoter mutation, CIC and FUBP1 mutations, CDKN2A/B homozygous deletion (poor outlook, rare), DNA methylation class.
Scans and tests linked to this cancer: Active surveillance, 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
- Grade 2, high risk, and grade 3: Radiotherapy followed by PCV (procarbazine, lomustine, vincristine), the regimen validated in RTOG 9402, EORTC 26951 and RTOG 9802; radiotherapy with temozolomide is an alternative being compared in CODEL. (IMRT / IGRT (modern external beam), Procarbazine, Lomustine (CCNU), Vincristine, RTOG 9402, EORTC 26951, Temozolomide)
- Grade 2, residual or recurrent, not needing radiotherapy: Vorasidenib (INDIGO) or continued observation. (Vorasidenib, INDIGO)
- Recurrence: Re-resection, temozolomide or lomustine, re-irradiation; bevacizumab for symptoms. (Temozolomide, Lomustine (CCNU), Re-irradiation, Bevacizumab (glioblastoma use))
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.