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Table 4 Selection of stratified doses with highest probability of target attainment (PTA) compared to that of the body surface area (BSA)-based and flat doses of MTX administered as 24 h continuous infusion

From: Evaluation of body-surface-area adjusted dosing of high-dose methotrexate by population pharmacokinetics in a large cohort of cancer patients

BSA-based

Flat

Stratified

< 25%

(< 1.7m2)

25–75%

(1.7–2.12 m2)

> 75%

(> 2.12 m2)

500 mg/m2

850 mg

775 mg

850 mg

975 mg

1000 mg/m2

1700 mg

1550 mg

1700 mg

1900 mg

2000 mg/m2

3400 mg

3000 mg

3400 mg

3800 mg