Next-Generation Sequencing Identifies Potential Actionable Targets in Paediatric Sarcomas

Antonio Juan Ribelles1, Pablo Gargallo2, Pablo Berlanga3

  • 1Paediatric Oncology and Hematology Unit, Hospital U I P La Fe, Av. Fernando Abril Martorell, 106, 46026 Valencia, Spain.

Insights

Next-generation sequencing (NGS) identified actionable genomic alterations in 31% of pediatric sarcomas. Targeted therapy based on these findings demonstrated clinical benefit, particularly in relapsed cases.

Area of Science:

  • Oncology
  • Genomics
  • Pediatric Medicine

Background:

  • Bone and soft-tissue sarcomas account for 13% of childhood cancers.
  • Next-generation sequencing (NGS) is emerging in clinical applications for pediatric malignancies.
  • This study details results from a precision medicine program for pediatric sarcomas.

Purpose of the Study:

  • To evaluate the utility of next-generation sequencing (NGS) in identifying actionable genomic alterations in pediatric sarcomas.
  • To assess the feasibility and clinical benefit of targeted therapies guided by NGS results in children with sarcomas.
  • To characterize the genomic landscape of pediatric sarcomas.

Main Methods:

  • Histopathological analysis, RT-PCR, and NGS using a consensus gene panel were performed on 70 pediatric sarcoma samples.
  • Pathogenic alterations were identified and correlated with clinical data.
  • Actionable variants were used to guide targeted treatment recommendations.

Main Results:

  • Of 70 pediatric sarcoma patients, 22 (31%) had at least one pathogenic alteration detected by NGS.
  • Thirty pathogenic mutations in 18 genes, including TP53, FGFR4, and CTNNB1, were identified.
  • Six patients received targeted therapy for 18 actionable variants, achieving a 78% disease control rate.

Conclusions:

  • Pediatric sarcomas exhibit a distinct genomic profile compared to adult sarcomas.
  • Integrating NGS into pediatric sarcoma treatment is feasible and offers personalized therapeutic options.
  • Targeted therapies guided by NGS can provide clinical benefits, especially for patients with relapsed disease.