Adapting therapy with repeated short-infusions to inter individual variability between patients

Area of Science:

• Pharmacology
• Clinical Pharmacy
• Pharmacokinetics

Background:

• Individual patient variability significantly impacts drug response and therapeutic efficacy.
• Standard drug administration protocols may not be optimal due to inter-individual differences.
• Intravenous (IV) drug delivery allows for adjustable administration parameters in a hospital setting.

Purpose of the Study:

• To describe a therapeutic method for adapting intravenous drug therapy to individual patients.
• To present a two-stage approach for optimizing drug administration based on patient-specific pharmacokinetics.
• To introduce a method for achieving generalizable solutions using dimensionless parameters.

Main Methods:

• Stage 1: Determination of patient pharmacokinetic parameters through analysis of drug concentrations in blood after the first infusion.
• Stage 2: Repeated short infusions with adjusted dosage, infusion rate, or interval between infusions.
• Development of master curves using dimensionless numbers (e.g., time relative to half-life, peak concentration fraction) for generalizability.

Main Results:

• The described method allows for precise adaptation of drug therapy to individual patient needs.
• Pharmacokinetic parameters can be reliably determined from limited blood samples.
• Master curves provide a framework for optimizing repeated short infusion strategies across different drugs and patients.

Conclusions:

• The presented two-stage therapeutic method enables personalized intravenous drug administration.
• This approach addresses the challenge of inter-individual variability in drug response.
• The use of dimensionless parameters facilitates the development of broadly applicable therapeutic guidelines.