BRAF V600E-mutated metastatic Wilms tumor with complete response to targeted RAF/MEK inhibition: a post-treatment follow-up case report - Report - MDSpire

BRAF V600E-mutated metastatic Wilms tumor with complete response to targeted RAF/MEK inhibition: a post-treatment follow-up case report

  • By

  • Iliani Slika

  • Carlene K. Edwards

  • Kenneth J. Cohen

  • Alan D. Friedman

  • Christine A. Pratilas

  • Patience Odeniyide

  • May 7, 2026

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Clinical Report: Complete Response to Targeted RAF/MEK Inhibition in Wilms Tumor

Overview

Revise to include initial treatment details and context of the BRAF V600E mutation.

Background

Wilms tumor is the most prevalent renal malignancy in children, with standard treatments yielding high survival rates for most patients. However, relapsed cases often have poor outcomes and limited treatment options. This case underscores the potential of precision-targeted therapies in improving survival for patients with recurrent Wilms tumor.

Data Highlights

No numerical data available in the source material.

Key Findings

  • The patient achieved a sustained complete remission after BRAF/MEK inhibition.
  • He remains disease-free for two years following the cessation of targeted therapy.
  • This case represents the first report of long-term survival after targeted therapy for multiply relapsed Wilms tumor.
  • Genomic profiling identified the BRAF V600E mutation as a target for therapy.
  • The treatment regimen was well tolerated without major adverse events.

Clinical Implications

This case highlights the importance of molecular profiling in guiding treatment decisions for relapsed Wilms tumor. The successful use of BRAF/MEK inhibitors may offer a new therapeutic avenue for patients with similar genetic profiles.

Conclusion

The long-term disease-free status of this patient following targeted therapy illustrates the potential for precision medicine in managing challenging cases of Wilms tumor. Further studies are warranted to explore the broader applicability of these findings.

References

  1. Brastianos et al., Journal of Neuro-Oncology, 2025 -- Management of Papillary Craniopharyngioma in the Context of BRAF and MEK Inhibitors
  2. Lacouture et al., The ASCO Post, 2012 -- Answer to Secondary Cancers with RAF Inhibitors May Be Concomitant MEK Inhibition
  3. Blood Cancer Journal, 2015 -- BRAF V600E mutation in early-stage multiple myeloma: good response to broad acting drugs and no relation to prognosis
  4. The ASCO Post, 2012 -- Dual BRAF and MEK Inhibition Is Active in Advanced Melanoma
  5. Wilms Tumor and Other Childhood Kidney Tumors Treatment (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf, 2025
  6. FDA, 2022 -- FDA grants accelerated approval to dabrafenib in combination with trametinib for unresectable or metastatic solid tumors with BRAF V600E mutation
  7. Wilms Tumor and Other Childhood Kidney Tumors Treatment (PDQ®) - PDQ Cancer Information Summaries - NCBI Bookshelf
  8. FDA grants accelerated approval to dabrafenib in combination with trametinib for unresectable or metastatic solid tumors with BRAF V600E mutation | FDA

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