At the 80th United Nations General Assembly (UNGA 80), childhood cancer was recognised at the highest political level for the first time during the Fourth High-Level Meeting on Noncommunicable Diseases (NCDs) and Mental Health.

On 26 September 2025, the International Society of Paediatric Oncology (SIOP) and Memorial Sloan Kettering Cancer Center (MSK) co-hosted the high-level side event: “Leveraging the WHO GICC to Accelerate NCD Progress and Leave No One Behind: Advancing Childhood Cancer Outcomes in Low- and Middle-Income Countries Through Stronger Data Mapping and Local Research.”

This landmark event brought together leaders in paediatric oncology, policymakers, researchers, and advocates to highlight the progress of the WHO Global Initiative for Childhood Cancer (GICC) and chart the path forward to achieving the global target of at least 60% survival for children with cancer by 2030.

• Equity in Childhood Cancer Care: The event underscored the urgent need to reduce survival disparities between high-income and low- and middle-income countries (LMICs).

• Data Mapping & Local Research: Speakers emphasised the critical role of reliable data systems and context-specific research in driving sustainable improvements.

• People with Lived Experience (PWLE): Alejandra Méndez, Vice President and Chair-Elect of Childhood Cancer International (CCI), represented families and survivors, calling for the meaningful inclusion of PWLE in research and policy processes.

• Collaborative Approaches: The discussions reinforced that only through strong partnerships—across sectors, regions, and communities—can the childhood cancer community deliver on its promises.

As a global leader in paediatric oncology, SIOP continues to champion stronger research capacity, equitable access to care, and the integration of childhood cancer within the global NCD agenda. This side event marked a pivotal step in ensuring that no child is left behind.