Response to the letter from Dr Cosolo and Colleagues
1992

Pharmacokinetics of Methotrexate in Children

Sample size: 127 publication

Author Information

Author(s): A.D.J. Pearson

Primary Institution: University of Newcastle upon Tyne

Hypothesis

The study investigates the relationship between pharmacokinetics of methotrexate and clinical outcomes in children.

Conclusion

The study suggests that measuring methotrexate concentrations over 24 hours is sufficient to understand its pharmacokinetics and toxicity.

Supporting Evidence

  • The study involved 127 patients to relate pharmacokinetics to clinical outcomes.
  • Previous studies indicated that the AUC from 24 to 48 hours contributes less than 8% to the total AUC.

Takeaway

This study looked at how methotrexate behaves in children's bodies to see how it affects their treatment.

Methodology

Pharmacokinetic studies were conducted on methotrexate in 127 patients, measuring serum concentrations over a 24-hour period.

Limitations

Detailed pharmacokinetic studies were not possible in this large cohort due to practical constraints.

Participant Demographics

Children with acute lymphoblastic leukaemia.

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