International Delphi-based Consensus: Therapeutic Approaches for Pediatric Adrenocortical Carcinoma

Adrenocortical carcinoma (ACC) in children is a rare and aggressive malignancy. Despite representing a small fraction of pediatric adrenal tumors, ACC poses distinct challenges due to its heterogeneous biological behavior, frequent hormone secretion, and the limited availability of standardized, pediatric-specific treatment protocols. Complete surgical resection remains the cornerstone of curative intent therapy, and complete adrenalectomy offers the best chance for long-term survival. Given the aggressiveness of ACC, particularly in advanced disease, adjuvant therapies are often considered to improve outcomes. The aim of this consensus meeting was to bring together international experts to develop international guidance based on the best available evidence and collective clinical experience to harmonize long-term management. A modified 3-step Delphi consensus method was used to finalize the statements from an international panel of pediatric ACC experts from 4 continents (Europe, the Americas, and Asia, and Oceania). An electronic survey was developed by the steering committee (ENSAT Kids) and distributed to the panel. Agreement and disagreement were rated using a 6-point Likert scale with the opportunity to provide structured feedback. Consensus was defined a priori as ≥75% agreement. This Delphi process yielded consensus statements for therapy guidance, comprising 12 surgical statements and 68 medical treatment statements, organized by strategy and disease stage. These statements are intended to support clinicians in delivering more consistent and standardized therapeutic strategies for pediatric ACC. Future efforts should prioritize the design and conduct of high-quality, collaborative research studies in order to provide more evidence and therapy improvements.