Phase I and Pharmacokinetic Study of the Oral Farnesyltransferase Inhibitor Lonafarnib Administered Twice Daily to Pediatric Patients With Advanced Central Nervous System Tumors Using a Modified Continuous Reassessment Method: A Pediatric Brain Tumor Consortium Study

作者: Mark W. Kieran , Roger J. Packer , Arzu Onar , Susan M. Blaney , Peter Phillips

DOI: 10.1200/JCO.2006.09.4243

关键词: Pediatric Brain Tumor ConsortiumDoseLonafarnibSurvival analysisMedicinePneumonitisPharmacokineticsOncologyCentral nervous system diseaseFarnesyltransferase inhibitorInternal medicineSurgery

摘要: Purpose A dose-escalation phase I and pharmacokinetic study of the farnesyltransferase inhibitor lonafarnib (SCH66336) was conducted in children with recurrent or progressive CNS tumors. Primary objectives were to estimate maximum-tolerated dose (MTD) describe dose-limiting toxicities (DLTs) pharmacokinetics lonafarnib. Farnesylation inhibition HDJ-2 peripheral blood also measured. Patients Methods Lonafarnib administered orally twice daily at levels 70, 90, 115, 150, 200 mg/m2/dose bid. modified continual reassessment method (CRM) used MTD based on actual dosages observed during initial 4 weeks treatment. Results Fifty-three brain tumors enrolled, a median age 12.2 years (range, 3.9 19.5 years). Dose-limiting pneumonitis myelosuppression three patients level. relatively constant...

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