Researchers Examine Modeling for Pediatric Dose Selection
FDA researchers are working with industry and clinicians to determine the best way to apply modeling information to improve pediatric dose selection for renally eliminated drugs in the pediatric patient population. A new CDER Web posting notes recent research findings that renal function models and equations are “valuable tools for predicting drug pharmacokinetics, clearance, and dose adjustments in pediatric patients. Although the clearance of renally eliminated drugs might be overestimated when using creatinine-based renal function equations — especially for pediatric patients with low levels of serum creatinine — well-reasoned adjustments to methods of calculating eGFR [estimated glomerular filtration rate] values may improve the accuracy of predicted parameters. Equations based on cystatin C levels or a combination of multiple renal biomarkers might be productive in this regard.”
FDA says its research will inform efforts to “improve pediatric dose selection strategies for drug developers as well as pediatricians who must pay particular attention to renal function. The research project has also had a significant impact on pediatric drug regulatory review by facilitating consensus on best practices for assessing pediatric renal function and dose selection in clinical trials and product labeling.”