Cancer Chemotherapy and Pharmacology

, Volume 14, Issue 1, pp 42–48

Human pharmacokinetics of marcellomycin

  • P. Dodion
  • M. Rozencweig
  • C. Nicaise
  • M. Watthieu
  • J. M. Tamburini
  • C. E. RiggsJr.
  • N. R. Bachur
Original Articles Marcellomycin

Summary

In conjunction with two phase I clinical trials, we have investigated the pharmacokinetics of marcellomycin (MCM), a new class II anthracycline antibiotic, in nine patients with normal renal and hepatic functions and no third-space fluid accumulation. MCM was infused IV over 15 min at a dosage of 27.5, 40, or 50 mg/m2. Plasma and urine samples were collected up to 72 h. MCM and metabolites were assayed by thin-layer chromatography and quantified by specific fluorescence. The disappearance of total MCM-derived fluorescence from plasma followed first-order kinetics and lacked the rebound in total fluorescence that has been described for the structurally similar agent, aclacinomycin A. After 40–50 mg/m2, the peak MCM concentration in plasma was 1.67±0.61 μM; MCM disappeared from plasma in a triexponential fashion and was undetectabel by 48 h after infusion. The area under the plasma concentration-time plot (AUC), including the infusion time, was 1.11±0.39 μMxh; plasma clearance of MCM was 1.50±0.88 l/min/m2. Five other fluorescent compounds were consistently observed in plasma. M2 was a contaminant present in the parent drug. P1 and P2 were conjugates of MCM and M2, respectively. G1 and G2 were aglycones. The peak concentrations of the metabolites were 25% or less or the peak concentration for MCM, but their persistence resulted in higher AUCs than that for MCM. For the dosage of 27.5 mg/m2, fewer data were available; but the pharmacokinetics of MCM and metabolites appeared to be similar to that at higher dosage. Urinary excretion of total fluorescence amounted to 8.0%±1.6% of the total dose at 40–50 mg/m2, and to 7.0%±2.3% at 27.5 mg/m2. No correlation was detected among the various pharmacokinetic parameters and toxicities encountered in these patients.

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Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • P. Dodion
    • 3
  • M. Rozencweig
    • 2
  • C. Nicaise
    • 2
  • M. Watthieu
    • 2
  • J. M. Tamburini
    • 1
  • C. E. RiggsJr.
    • 2
  • N. R. Bachur
    • 3
  1. 1.Division of Developmental TherapeuticsUniversity of Maryland Cancer CenterBaltimoreUSA
  2. 2.Institut Jules BordetBrusselsBelgium
  3. 3.Laboratory of Medicinal Chemistry and Biology, National Cancer Institute, DCTNIHBethesdaUSA

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