p53-abnormal endometrial cancer, including uterine serous carcinoma
Prepared with OnCo (onco.cc/prep/endometrial-p53-abnormal/). 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
19 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 p53 immunohistochemistry, TP53 sequencing where staining is equivocal, HER2 immunohistochemistry and in situ hybridisation, Copy-number burden and homologous recombination deficiency, CA-125 for monitoring), 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 (surgery and staging), which of the standard options do you recommend and why?
- 6.For my situation (adjuvant, stage i to iii), which of the standard options do you recommend and why?
- 7.Am I a candidate for Carboplatin, Paclitaxel / nab-paclitaxel, and what side effects should I expect?
- 8.How do the results of PORTEC-3 apply to someone like me?
- 9.For my situation (advanced or recurrent her2-positive serous), which of the standard options do you recommend and why?
- 10.Am I a candidate for Trastuzumab, Trastuzumab deruxtecan, and what side effects should I expect?
- 11.How do the results of DESTINY-PanTumor02 apply to someone like me?
- 12.For my situation (advanced or recurrent her2-negative), which of the standard options do you recommend and why?
- 13.Am I a candidate for Carboplatin, Paclitaxel / nab-paclitaxel, Dostarlimab or related drugs, and what side effects should I expect?
- 14.How do the results of RUBY / ENGOT-EN6 / GOG-3031 and KEYNOTE-775 / Study 309 apply to someone like me?
- 15.Are there clinical trials I could join, for example of DESTINY-Endometrial01: A Phase III Study of Trastuzumab Deruxtecan Plus Rilvegostomig or Pembrolizumab as First-Line Treatment of HER2-Expressing (IHC, Trastuzumab deruxtecan, Olaparib, HER2 ADCs as standard for HER2-positive serous endometrial cancer?
- 16.Would a second opinion at a high-volume centre change anything, and can you help arrange it?
- 17.What supportive care (symptom control, nutrition, exercise, mental health, financial help) is available from the start?
- 18.I read that “Distant relapse after early-stage disease despite chemotherapy”. How does that affect my plan?
- 19.I read that “Whether PARP inhibition helps p53-abnormal tumours as it does ovarian cancer”. How does that affect my plan?
The words I may hear
- Endometrial cancer molecular classes (POLEmut, MMRd, p53abn, NSMP): Four groups defined by a few tests that predict outcome better than the microscope: POLE-mutated (excellent), mismatch-repair deficient, p53-abnormal (worst), and 'no specific profile'.
- Hysterectomy: Removing the uterus (womb), often with the cervix, tubes and ovaries.
Tests and results to bring
Surgery and staging: Hysterectomy with bilateral salpingo-oophorectomy, sentinel node mapping and omental sampling, with peritoneal assessment because serous tumours spread like ovarian cancer.
Biomarker results to ask for: p53 immunohistochemistry (mutant-pattern staining or null), TP53 sequencing where staining is equivocal, HER2 immunohistochemistry and in situ hybridisation (serous and carcinosarcoma), Copy-number burden and homologous recombination deficiency, CA-125 for monitoring, PIK3CA, PPP2R1A and FBXW7 mutations.
Scans and tests linked to this cancer: Histopathology & immunohistochemistry.
Bring copies of scan reports, pathology and blood results, and a list of every medicine and supplement.
The treatments I may be offered
- Adjuvant, stage I to III: Carboplatin-paclitaxel chemotherapy, with pelvic radiotherapy and vaginal brachytherapy as in PORTEC-3; chemotherapy is recommended for all p53-abnormal tumours with myometrial invasion. (PORTEC-3, Carboplatin, Paclitaxel / nab-paclitaxel, IMRT / IGRT (modern external beam), Brachytherapy, TP53)
- Advanced or recurrent HER2-positive serous: Trastuzumab added to carboplatin-paclitaxel and continued as maintenance; trastuzumab deruxtecan for HER2-expressing disease after chemotherapy (DESTINY-PanTumor02). (Trastuzumab, Trastuzumab deruxtecan, DESTINY-PanTumor02, HER2)
- Advanced or recurrent HER2-negative: Carboplatin-paclitaxel with dostarlimab or pembrolizumab as for other endometrial cancers, though the immunotherapy gain is smaller in mismatch-repair-proficient disease; lenvatinib-pembrolizumab after platinum. (Carboplatin, Paclitaxel / nab-paclitaxel, Dostarlimab, Pembrolizumab, RUBY / ENGOT-EN6 / GOG-3031, KEYNOTE-775 / Study 309)
From the standard of care recorded for this cancer; which apply depends on your stage and biomarkers. Ask which the team recommends and why.