Study Stopped
Data for the primary objectives is complete and the MTD identified in Stratum II.
Palbociclib Isethionate in Treating Younger Patients With Recurrent, Progressive, or Refractory Central Nervous System Tumors
Phase I Study of CDK 4-6 Inhibitor PD-0332991 (Palbociclib; IBRANCE) in Children With Recurrent, Progressive or Refractory Central Nervous System Tumors
2 other identifiers
interventional
35
1 country
11
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.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_1
Started Dec 2014
Longer than P75 for phase_1
11 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 30, 2014
CompletedFirst Posted
Study publicly available on registry
October 2, 2014
CompletedStudy Start
First participant enrolled
December 8, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 25, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
February 25, 2019
CompletedResults Posted
Study results publicly available
April 8, 2020
CompletedMarch 2, 2021
February 1, 2021
4.2 years
September 30, 2014
February 20, 2020
February 10, 2021
Conditions
Outcome Measures
Primary Outcomes (13)
Maximum Tolerated Dose (MTD) of Palbociclib in Stratum I
Rolling-6 design was used to estimate MTD. The MTD was empirically defined as the highest dose level at which six patients were treated with at most one patient experiencing a dose-limiting toxicity (DLT) and the next higher dose level had been determined to be too toxic. Stratum I consisted of less-heavily pre-treated patients.
4 weeks
Maximum Tolerated Dose (MTD) of Palbociclib in Stratum II
Rolling-6 design was used to estimate MTD. The MTD was empirically defined as the highest dose level at which six patients were treated with at most one patient experiencing a DLT and the next higher dose level had been determined to be too toxic. Stratum II consisted of heavily pre-treated patients.
4 weeks
Number of Patients Who Experienced Dose Limiting Toxicities (DLTs)
DLTs were defined as any of the following adverse events that were at least possibly related to palbociclib that occurred during the first 4 weeks of therapy regardless of expectedness. Hematologic DLTs included grade 3 neutropenia with fever and sepsis, grade 3 thrombocytopenia and/or requiring a platelet transfusion on 2 separate days within a 7-day period, or any grade 4 hematologic toxicity except lymphopenia. Non-hematologic DLTs included any grade 4 non-hematologic toxicity, any grade 3 non-hematologic toxicity with some exceptions (e.g., nausea and vomiting of \< 5 days; diarrhea and/or electrolyte disturbances which have not been maximally treated; AST/ALT elevation that returns to levels meeting eligibility criteria within 7 days of study drug interruption and does not recur upon restarting drug), or any grade 2 non-hematologic toxicity that persists for \> 7 days and is considered medically significant or sufficiently intolerable by patients requires treatment interruption.
4 weeks
Single Dose Apparent Volume of Central Compartment (Vc/F)
On day 1 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 0.5, 1, 2, 4, 8 (±1), 10 (±0.5) optional, 24 (±4), 48 (±4) hours after the oral dose of palbociclib. Apparent volume of central compartment (Vc/F) was estimated using a non-compartmental method.
Up to day 3
Single Dose Elimination Rate Constant (Ke)
On day 1 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 0.5, 1, 2, 4, 8 (±1), 10 (±0.5) optional, 24 (±4), 48 (±4) hours after the oral dose of palbociclib. Elimination rate constant (Ke) was estimated using a non-compartmental method.
Up to day 3
Single Dose Half-life (t1/2)
On day 1 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 0.5, 1, 2, 4, 8 (±1), 10 (±0.5) optional, 24 (±4), 48 (±4) hours after the oral dose of palbociclib. Half-life (t1/2) was estimated using a non-compartmental method.
Up to day 3
Single Dose Apparent Oral Clearance (CL/F)
On day 1 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 0.5, 1, 2, 4, 8 (±1), 10 (±0.5) optional, 24 (±4), 48 (±4) hours after the oral dose of palbociclib. Apparent oral clearance (CL/F) was estimated using a non-compartmental method.
Up to day 3
Single Dose Area Under the Plasma Concentration Time Curve (AUC)
On day 1 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 0.5, 1, 2, 4, 8 (±1), 10 (±0.5) optional, 24 (±4), 48 (±4) hours after the oral dose of palbociclib. Area under the plasma concentration time curve (AUC) was estimated using a non-compartmental method.
Up to day 3
Steady State Apparent Volume of Central Compartment (Vc/F)
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Apparent volume of central compartment (Vc/F) was estimated using a non-compartmental method.
Up to day 22
Steady State Elimination Rate Constant (Ke)
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Elimination rate constant (Ke) was estimated using a non-compartmental method.
Up to day 22
Steady State Half-life (t1/2)
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Half-life (t1/2) was estimated using a non-compartmental method.
Up to day 22
Steady State Apparent Oral Clearance (CL/F)
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Apparent oral clearance (CL/F) was estimated using a non-compartmental method.
Up to day 22
Steady State Area Under the Plasma Concentration Time Curve (AUC)
On day 21 of course 1, series blood samples for palbociclib pharmacokinetic studies were collected at pre-dose, 1, 2, 4, 8 (±1), 10 (±0.5) optional, and 24 (±4) hours after the dose. Area under the plasma concentration time curve (AUC) was estimated using a non-compartmental method.
Up to day 22
Secondary Outcomes (4)
Number of Subjects With Objective Responses
Up to 2 years
Association Between Neutropenia and Single Dose Palbociclib AUC
Up to approximately 4 weeks
Association Between Lymphopenia and Single Dose Palbociclib AUC
Up to approximately 4 weeks
Association Between Leukopenia and Single Dose Palbociclib AUC
Up to approximately 4 weeks
Other Outcomes (8)
Number of Subjects With Cyclin-dependent Kinase-4 (CDK4) Copy Number Variations
At enrollment
Number of Subjects With Cyclin-dependent Kinase-6 (CDK6) Copy Number Variations
At enrollment
Number of Subjects With Cyclin D1 Copy Number Variations
At enrollment
- +5 more other outcomes
Study Arms (1)
Treatment (palbociclib isethionate)
EXPERIMENTALPatients receive palbociclib isethionate PO QD on days 1-21. Treatment repeats every 4 weeks for 26 courses in the absence of disease progression or unacceptable toxicity.
Interventions
Given PO
Correlative studies
Eligibility Criteria
You may qualify if:
- Patients with retinoblastoma protein (Rb1) positive recurrent, progressive or refractory central nervous system (CNS) tumors
- Histologically confirmed Rb1 positive primary recurrent, progressive, or refractory central nervous system tumors; patients with low grade gliomas are excluded
- Formalin fixed paraffin embedded tumor tissue (preferably from current recurrence) must be available to assess Rb1 protein status prior to enrollment; only patients with recurrent diffuse intrinsic brain stem glioma (DIPG) can be enrolled without the need for available tumor tissue for Rb1 protein status confirmation
- Patients must have measurable disease (in 2-dimensions) on magnetic resonance imaging (MRI) scan of brain and/or spine to assess preliminary evidence of response
- Body surface area (BSA):
- Patients enrolled on dose level 1 (50 mg/m\^2) must have BSA \>= 1.20 m\^2
- Patients enrolled on dose level 2 (75 mg/m\^2) must have BSA \>= 0.93 m\^2
- Patients enrolled on dose level 3 (95 mg/m\^2) must have BSA \>= 0.70 m\^2
- Patients must have received no more than 2 prior chemotherapy regimens and/or focal radiotherapy for their brain tumor and fully recovered from the acute treatment related toxicities of all prior therapies prior to entering this study; for those acute baseline adverse events attributable to prior therapy, patients must meet organ function criteria
- Chemotherapy: patients must have received their last dose of known myelosuppressive anticancer chemotherapy at least three (3) weeks prior to study enrollment in the study or at least six (6) weeks for those receiving nitrosourea
- Biologic therapy: patients should have received their last dose of biologic agent \>= 7 days prior to enrollment; in the event the patient has received another biologic agent and has experienced \>= grade 2 myelosuppression, then at least three (3) weeks must have elapsed prior to enrollment; if the investigational or biologic agent has a prolonged half-life then at least three (3) weeks interval is required
- Radiotherapy: patients must have had their last fraction of:
- \* Focal irradiation \> 2 weeks prior to enrollment
- Corticosteroids: patients who are receiving dexamethasone or other corticosteroids must be on a stable or decreasing dose for at least 1 week prior to enrollment; it is recommended that patients be off all steroid therapy or receive the least dose that will control their neurologic symptoms
- Growth factors: all colony forming growth factor(s) have been discontinued for at least one week prior to enrollment (filgrastim, sargramostim, and erythropoietin); for patients on long acting growth factors, the interval should be two weeks
- +19 more criteria
You may not qualify if:
- Patients with any clinical significant unrelated systemic illness (serious infections or significant cardiac, pulmonary, hepatic or other organ dysfunction) that is likely to interfere with the study procedures or results
- Patients with low grade gliomas and Rb1 negative tumors
- Patients who have received any of the following:
- \> 2 chemotherapy regimens
- Myeloablative chemotherapy with stem cell rescue
- Craniospinal irradiation
- Patients with corrected QT (QTc) interval of \> 450 msec or those on medications known to prolong QTc interval
- Prior treatment on a CDK inhibitor
- Patients who are receiving drugs that are strong inducers or inhibitors of cytochrome P450, family 3, subfamily A, polypeptide 4 (CYP3A4)
- Patients who are receiving any other investigational therapy
- Patients who require enzyme inducing anti-convulsants to control seizures
- Patients with cataracts on ophthalmologic examination
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Pediatric Brain Tumor Consortiumlead
- National Cancer Institute (NCI)collaborator
Study Sites (11)
Childrens Hospital Los Angeles
Los Angeles, California, 90027, United States
Lucile Packard Children Hospital Stanford University
Palo Alto, California, 94304, United States
Childrens National Medical Center
Washington D.C., District of Columbia, 20010-2970, United States
Lurie Childrens Hospital-Chicago
Chicago, Illinois, 60614, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
Duke University Medical Center
Durham, North Carolina, 27710, United States
Cincinnati Children Hospital Medical Center
Cincinnati, Ohio, 45229, United States
Children Hospital of Pittsburgh of UPMC
Pittsburgh, Pennsylvania, 15224, United States
St. Jude Children Research Hospital
Memphis, Tennessee, 38105, United States
Texas Childrens Hospital
Houston, Texas, 77030, United States
Seattle Children Hospital
Seattle, Washington, 98105, United States
Related Publications (1)
Raetz EA, Teachey DT, Minard C, Liu X, Norris RE, Denic KZ, Reid J, Evensen NA, Gore L, Fox E, Loh ML, Weigel BJ, Carroll WL. Palbociclib in combination with chemotherapy in pediatric and young adult patients with relapsed/refractory acute lymphoblastic leukemia and lymphoma: A Children's Oncology Group study (AINV18P1). Pediatr Blood Cancer. 2023 Nov;70(11):e30609. doi: 10.1002/pbc.30609. Epub 2023 Aug 8.
PMID: 37553297DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Jie Huang
- Organization
- St. Jude Children's Research Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
David Van Mater, MD
Pediatric Brain Tumor Consortium
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- NETWORK
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 30, 2014
First Posted
October 2, 2014
Study Start
December 8, 2014
Primary Completion
February 25, 2019
Study Completion
February 25, 2019
Last Updated
March 2, 2021
Results First Posted
April 8, 2020
Record last verified: 2021-02
Data Sharing
- IPD Sharing
- Will not share