What question did this study set out to answer?

To evaluate the predictive accuracy of different population pharmacokinetic models for estimating vancomycin clearance in hospitalized patients with low serum creatinine levels.

August 20, 2026Basic & Clinical Pharmacology & Toxicology

Discrepancies in Vancomycin Clearance Estimation Among Renal Function Models in Patients With Low Serum Creatinine Levels: A Pilot Study

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To evaluate the predictive accuracy of different population pharmacokinetic models for estimating vancomycin clearance in hospitalized patients with low serum creatinine levels.
Retrospective single-centre study evaluated hospitalized adult patients (N = 24) receiving intravenous vancomycin.
Predicted vancomycin clearance was calculated across six pharmacokinetic scenarios using creatinine clearance, serum albumin, reduced muscle mass, serum creatinine rounding, and Japanese cystatin C–based estimated glomerular filtration rate.
Agreement between predicted and two-point estimated clearance was assessed using concordance correlation coefficients and Bland–Altman analysis.
The creatinine clearance-based model showed the highest predictive agreement among all six scenarios (concordance correlation coefficient = 0.79).
Models incorporating Japanese cystatin C-based estimated glomerular filtration rate or rounded-up serum creatinine systematically underestimated vancomycin clearance during augmented renal clearance.
Vancomycin clearance increased substantially in patients with a body mass index ≥ 25 kg/m² and those younger than 70 years.

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Implication

Retrospective study reveals standard creatinine clearance models best predict vancomycin clearance in low serum creatinine patients, suggesting practical dosing benefits in obesity and youth.

Cite This Study

Nakano et al. (2026) studied this question.

synapsesocial.com/papers/6a86b57f8a91293e6a1ccf35 https://doi.org/10.1111/bcpt.70287

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Implication

Retrospective study reveals standard creatinine clearance models best predict vancomycin clearance in low serum creatinine patients, suggesting practical dosing benefits in obesity and youth.

Discrepancies in Vancomycin Clearance Estimation Among Renal Function Models in Patients With Low Serum Creatinine Levels: A Pilot Study

Key Points

Discussion

Implication

Cite This Study

Discrepancies in Vancomycin Clearance Estimation Among Renal Function Models in Patients With Low Serum Creatinine Levels: A Pilot Study

Key Points

Discussion

Implication

Cite This Study