The authors discuss United States and European efforts to increase pediatric medicine research and labeling information. They say these programs have not fully closed the evidence gap because pediatric studies may be delayed, incomplete, or postponed until after a medicine reaches the market.

The review separates unsupported off-label use from prescribing supported by research, clinical guidelines, or established clinical experience. Examples are discussed in pediatric cancer care, child psychiatric disorders, and supportive care, but the excerpts do not provide new patient-level results from these areas.