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Brief Title: Palbociclib Isethionate in Treating Younger Patients With Recurrent, Progressive, or Refractory Central Nervous System Tumors
Official Title: Phase I Study of CDK 4-6 Inhibitor PD-0332991 (Palbociclib; IBRANCE) in Children With Recurrent, Progressive or Refractory Central Nervous System Tumors
Study ID: NCT02255461
Brief Summary: This phase I trial studies the side effects and best dose of palbociclib isethionate in treating younger patients with central nervous system tumors that have grown, come back, or not responded to treatment. Palbociclib isethionate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
Detailed Description: PRIMARY OBJECTIVES: I. To determine the maximum tolerated dose (MTD)/phase II recommended dose and describe toxicities related to PD-0332991 (palbociclib isethionate) in children with retinoblastoma protein 1 (Rb1) positive recurrent, progressive or refractory primary central nervous system (CNS) tumors. II. To determine plasma pharmacokinetics of PD-0332991 in children with Rb1positive recurrent, progressive or refractory primary CNS tumors. SECONDARY OBJECTIVES: I. To record preliminary evidence of efficacy of PD-0332991 in children with recurrent CNS tumors. II. To evaluate cyclin-dependent kinase (CDK)4/6, cyclin D1-3, Ink4a-ARF copy-number variations in available tumor tissue by array comparative, genomic hybridization (aCGH). III. To explore the potential relationships between the pharmacokinetics of PD-0332991 and pharmacodynamic response (e.g. percentage change in absolute neutrophil count \[ANC\], platelet counts). IV. To explore the pharmacogenetic polymorphisms in PD-0332991 metabolizing enzymes and transporters and relate these polymorphisms to PD-0332991 pharmacokinetics. OUTLINE: This is a dose-escalation study. Patients receive palbociclib isethionate orally (PO) once daily (QD) on days 1-21. Treatment repeats every 4 weeks for 26 courses in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days.
Minimum Age: 4 Years
Eligible Ages: CHILD, ADULT
Sex: ALL
Healthy Volunteers: No
Childrens Hospital Los Angeles, Los Angeles, California, United States
Lucile Packard Children Hospital Stanford University, Palo Alto, California, United States
Childrens National Medical Center, Washington, District of Columbia, United States
Lurie Childrens Hospital-Chicago, Chicago, Illinois, United States
Memorial Sloan Kettering Cancer Center, New York, New York, United States
Duke University Medical Center, Durham, North Carolina, United States
Cincinnati Children Hospital Medical Center, Cincinnati, Ohio, United States
Children Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania, United States
St. Jude Children Research Hospital, Memphis, Tennessee, United States
Texas Childrens Hospital, Houston, Texas, United States
Seattle Children Hospital, Seattle, Washington, United States
Name: David Van Mater, MD
Affiliation: Pediatric Brain Tumor Consortium
Role: PRINCIPAL_INVESTIGATOR