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Introduction to the Pediatric PPK (PD) Study Design Template and Analyses of the FDA Pediatric Database Clinical Pharmacology Subcommittee Advisory Committee for Pharmaceutical Sciences April 22-23, 2003 Rockville, Maryland. Lawrence J. Lesko, Ph.D.
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Introduction to the Pediatric PPK (PD) Study Design Template and Analyses of the FDA Pediatric DatabaseClinical Pharmacology SubcommitteeAdvisory Committee for Pharmaceutical SciencesApril 22-23, 2003Rockville, Maryland Lawrence J. Lesko, Ph.D. Director, Office of Clinical Pharmacology and Biopharmaceutics Center for Drug Evaluation and Research Food and Drug Administration
Pediatric Rule or Best Pharmaceuticals for Children Act • Use adult clinical data to draw conclusions about the efficacy, safety and dosing of drugs in pediatric patients • avoids large scale pediatric clinical trials • basis to decide what studies to conduct • expedites access to drugs for children • cost-effective • generally successful in meeting goals
Some Questions Always Need Assessment • Is it reasonable to assume a similar PK-PD relationship as adults • need to develop standard methods for specific drugs and drug classes • What is the appropriate dose? • rely on PK studies • full exposure profiles or sparse samples • dosing intended to achieve exposure similar to adults • standardized PPK study design template would be useful (Dr. Peter Lee)
What Can Be Learned From the Studies Conducted Under the Pediatric Rule? • Evaluation of the FDA pediatric database • age groups, PK data, elimination pathways, clinical endpoints • Presentation of research objectives to generate knowledge from database • look at the underlying mechanisms (age-related) where exposure differences exist between children and adults • goal is to improve or revise the pediatric decision tree to better identify studies need in children • Dr. Gene Williams