RET fusion-positive non-small-cell lung cancer
Prepared with OnCo (onco.cc/prep/ret-fusion-nsclc/). 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
14 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 RET fusion by RNA sequencing or DNA panel, RET resistance mutationsand bypass alterations at progression, Brain MRI at diagnosis and during follow-up, Blood pressure, liver enzymes and QT interval on RET inhibitors), 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 (advanced, first line), which of the standard options do you recommend and why?
- 6.Am I a candidate for Selpercatinib, Pralsetinib, and what side effects should I expect?
- 7.How do the results of LIBRETTO-431 and A Study of Selpercatinib (LOXO-292) in Participants With Advanced Solid Tumors, RET Fusion-Positive Solid Tumors, and Medullary Thyroid Cancer (LIBRET apply to someone like me?
- 8.For my situation (advanced, after a ret inhibitor), which of the standard options do you recommend and why?
- 9.Am I a candidate for Pemetrexed, Carboplatin, Pembrolizumab, and what side effects should I expect?
- 10.Are there clinical trials I could join, for example of Selpercatinib, LIBRETTO-431?
- 11.Would a second opinion at a high-volume centre change anything, and can you help arrange it?
- 12.What supportive care (symptom control, nutrition, exercise, mental health, financial help) is available from the start?
- 13.I read that “Solvent-front resistance mutations have no approved inhibitor”. How does that affect my plan?
- 14.I read that “Whether adjuvant selpercatinib prevents recurrence is not yet known”. How does that affect my plan?
The words I may hear
- Oligoprogression: When only one or two spots grow on an otherwise working targeted therapy; treat the spots and keep the pill.
- On-target resistance mutations (gatekeeper, solvent-front, compound): When a cancer becomes resistant to a targeted pill, it often does so by changing the exact spot where the drug binds: a 'gatekeeper' or 'solvent-front' mutation.
- Oncogene addiction: When a cancer depends so completely on one mutated gene that blocking it collapses the tumour.
- Tyrosine kinase inhibitor (TKI): Pills that block the on-switch enzyme (a kinase) that a particular cancer depends on: imatinib for CML, osimertinib for EGFR lung cancer, ibrutinib for CLL.
- Gene fusion: A gene fusion is two genes broken and joined together, creating a hybrid protein that can drive cancer.
- Brain metastases (intracranial disease): Tumour deposits that have travelled to the brain from a cancer elsewhere, ten times more common than cancers that start in the brain, mostly from lung, breast, melanoma and kidney cancer.
Tests and results to bring
Biomarker results to ask for: RET fusion by RNA sequencing or DNA panel (RNA preferred; fluorescence in situ hybridisation less reliable), RET resistance mutations (G810) and bypass alterations at progression, Brain MRI at diagnosis and during follow-up, Blood pressure, liver enzymes and QT interval on RET inhibitors.
Scans and tests linked to this cancer: Comprehensive genomic profiling.
Bring copies of scan reports, pathology and blood results, and a list of every medicine and supplement.
The treatments I may be offered
- Advanced, first line: Selpercatinib (LIBRETTO-431) as preferred; pralsetinib as an alternative. (Selpercatinib, LIBRETTO-431, A Study of Selpercatinib (LOXO-292) in Participants With Advanced Solid Tumors, RET Fusion-Positive Solid Tumors, and Medullary Thyroid Cancer (LIBRET, Pralsetinib, Brain metastases (intracranial disease))
- Advanced, after a RET inhibitor: Platinum-pemetrexed with or without pembrolizumab; clinical trial of a next-generation RET inhibitor; local radiotherapy for oligoprogression. (Pemetrexed, Carboplatin, Pembrolizumab, SBRT / SABR (stereotactic radiotherapy), Oligoprogression, On-target resistance mutations (gatekeeper, solvent-front, compound))
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.