Convection-Enhanced Delivery in Children: Techniques and Applications

Area of Science:

• Neurosurgery and Drug Delivery
• Pediatric Oncology
• Neurology

Background:

• Convection-enhanced delivery (CED) is a direct brain drug administration technique established in 1994, bypassing the blood-brain barrier.
• CED is more effective than diffusion for delivering large molecules into the brain parenchyma.
• While primarily used in adults for glioblastoma, CED shows potential for pediatric applications including brain tumors (e.g., DIPG) and metabolic diseases.

Purpose of the Study:

• To review current knowledge of CED applications in children.
• To discuss the history, development, and challenges of pediatric CED.
• To explore future disease-modifying opportunities for CED in pediatric neurological conditions.

Main Methods:

• Review of published pediatric CED studies.
• Analysis of CED hardware development and pharmacological agent selection.
• Examination of challenges in pediatric CED clinical trial design and gene therapy applications.

Main Results:

• CED has a well-established pre-clinical foundation with successful early-phase clinical trials in some centers.
• Clinical efficacy of CED, particularly in pediatric neuro-oncology, requires further unequivocal demonstration through clinical trials.
• Significant challenges remain in hardware development, agent selection, and clinical trial design for pediatric CED.

Conclusions:

• CED holds significant theoretical promise for treating pediatric brain tumors and other neurological disorders.
• Further research and robust clinical trials are essential to validate CED's efficacy and optimize its application in children.
• Addressing challenges in technology, pharmacology, and trial methodology will be key to realizing CED's full potential in pediatric neuro-oncology and beyond.