Evaluation of a standardized daptomycin dosing nomogram.

Area of Science:

• Pharmacoeconomics
• Infectious Diseases
• Clinical Pharmacy

Background:

• Daptomycin is a crucial antibiotic for treating serious Gram-positive infections.
• Optimizing daptomycin dosing protocols can lead to significant cost savings and improved patient outcomes.
• Standardized administration and preparation workflows are essential for efficient antibiotic use.

Purpose of the Study:

• To evaluate the cost savings, effectiveness, and safety of implementing a standardized daptomycin dosing protocol.
• To assess the impact of a new protocol on drug waste and resource utilization.
• To compare clinical outcomes before and after the protocol implementation.

Main Methods:

• Retrospective review of patients receiving daptomycin before and after protocol implementation.
• Standardized preparation time and storage of reconstituted daptomycin doses.
• Rapid intravenous (IV) administration and consistent creatine phosphokinase (CPK) monitoring.
• Defined protocol for CPK level evaluation throughout daptomycin therapy.

Main Results:

• Implementation of the standardized dosing nomogram and workflow optimization reduced daptomycin waste by 21,500 mg.
• Achieved cost savings of $13,845 over four months, extrapolating to $41,535 annually.
• Infection cure rates increased from 56.7% preimplementation to 70.0% postimplementation.
• Daptomycin was well tolerated, with no adverse events linked to the standardized dosing.

Conclusions:

• A standardized daptomycin dosing nomogram effectively reduces drug waste and generates substantial cost savings.
• The protocol maintained or improved clinical effectiveness and did not lead to adverse events.
• Optimized workflow and standardized dosing are key to efficient and safe daptomycin therapy.