Savolitinib in Treating Patients With Recurrent or Refractory Primary CNS Tumors
A Phase I Study of Savolitinib in Recurrent, Progressive, or Refractory Medulloblastoma, High-Grade Glioma, Diffuse Intrinsic Pontine Glioma, and CNS Tumors Harboring MET Aberrations
3 other identifiers
interventional
41
2 countries
12
Brief Summary
This phase I trial studies the side effects and best dose of savolitinib in treating patients with primary central nervous system (CNS) tumors that have come back (recurrent) or does not respond to treatment (refractory). Savolitinib 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 Nov 2018
Longer than P75 for phase_1
12 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 24, 2018
CompletedFirst Posted
Study publicly available on registry
July 26, 2018
CompletedStudy Start
First participant enrolled
November 27, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 22, 2026
CompletedResults Posted
Study results publicly available
June 23, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
May 27, 2027
ExpectedJuly 30, 2026
May 1, 2026
7.4 years
July 24, 2018
April 8, 2026
July 7, 2026
Conditions
Outcome Measures
Primary Outcomes (2)
The Maximum Tolerated Dose (MTD) and Recommended Phase II Dose
The maximum tolerated dose (MTD) and recommended Phase II dose (RP2D) of savolitinib were determined using a Rolling-6 Phase I dose-escalation design. Dose escalation was conducted in cohorts of two to six participants, starting at Dose Level 1. The MTD was defined based on the occurrence of dose-limiting toxicities during the dose-finding period (Course 1: 28 days) according to protocol-specified criteria. No intra-patient dose escalation was permitted. Participants were considered evaluable for dose-limiting toxicity assessment if they received the required dose of study drug and completed the dose-limiting toxicity observation period or experienced a dose-limiting toxicity during that period.
Up to 30 days post treatment initiation
Number of Patients Who Experienced Dose Limiting Toxicities (DLTs)
Dose-limiting toxicity (DLT) was defined as any adverse event at least possibly related to savolitinib occurring during the dose-finding period that met protocol-specified hematologic or non-hematologic criteria, including severe toxicity, treatment delay, dose reduction, or permanent discontinuation.
Up to 30 days post treatment initiation
Secondary Outcomes (17)
Number of Patients With Sustained Objective Responses (Complete Response + Partial Response)
Up to 2 years
Pharmacokinetic Parameters: AUC0-infinity
up to 10 days from treatment initiation
Pharmacokinetic Parameters of Interest: Cmax
up to 10 days from treatment initiation
Pharmacokinetic Parameters: Clearance/F
up to 10 days from treatment initiation
Population Parameters: Fixed-Effect Parameter Estimates: Tlag_pop
up to 10 days from treatment initiation
- +12 more secondary outcomes
Study Arms (1)
Treatment (savolitinib)
EXPERIMENTALPatients receive savolitinib PO QD. Treatment repeats every 28 days for up to 39 courses in the absence of disease progression or unacceptable toxicity. Additionally, patients undergo blood sample collection, X-ray imaging, and MRI scans throughout study.
Interventions
Undergo blood sample collection
Undergo MRI scan
Given PO
Undergo X-ray imaging
Eligibility Criteria
You may qualify if:
- Patients with a histologically confirmed diagnosis of a primary CNS tumor (medulloblastoma, high-grade glioma, or diffuse intrinsic pontine glioma \[DIPG\]) that is recurrent, refractory, or progressive. All tumors must have histologic verification at either the time of diagnosis or recurrence except patients with diffuse intrinsic brain stem tumors. These patients must have radiographic or clinical evidence of progression. Patients with a recurrent, progressive, or refractory primary CNS tumor with evidence of genetic activation of the MET pathway, regardless of histology, are also eligible to the Phase I component of this study
- Note: Refractory disease is defined as the presence of persistent abnormality on conventional MRI imaging that is further distinguished by histology (biopsy or sample of lesion) or advanced imaging, OR as determined by the treating physician and discussed with the primary investigator prior to enrollment
- Efficacy Expansion Cohort: Patients must have a recurrent, progressive, or refractory primary CNS tumor with evidence of genetic activation of the MET pathway, regardless of histology. Specimens can be from diagnosis or recurrence and there is no time limit from when the specimen was obtained prior to enrollment onto the efficacy expansion cohort. Results from a Clinical Laboratory Improvement Act (CLIA)-certified laboratory will be accepted for this eligibility criterion. Sites must provide a redacted copy of the local CLIA-certified sequencing laboratory report to the study chair via email prior to enrollment. MET pathway activation is defined as:
- MET mutations, OR
- MET or HGF amplification, OR
- MET fusion
- Recurrent or refractory primary malignant CNS tumor patients must have adequate pre-trial frozen or formalin-fixed paraffin-embedded (FFPE) tumor material available for the required correlative studies. If target amounts of tissue or number of slides are not available, the site must obtain study chair/co-chair approval for adequacy of submitted tumor samples and prioritization of studies to be performed, prior to patient enrollment
- Patients with DIPG who have pre-trial tumor tissue available are requested to submit tissue; however, this is not required for eligibility
- Patients must have evaluable disease to be eligible. Evaluable disease is defined as the presence of at least one lesion that can be measured accurately in at least 2 (two) dimensions
- Patients must be \> 5 years and =\< 21 years of age at the time of study enrollment
- Body surface area (BSA)
- Patients enrolled on 75 mg/m\^2/day (dose level 0) must have a BSA \>= 1.00 m\^2
- Patients enrolled on 150 mg/m\^2/day (dose level 1) must have a BSA \>= 0.55 m\^2
- Patients enrolled on 240 mg/m\^2/day (dose level 2) must have a BSA \>= 0.67 m\^2
- Patients enrolled on 350 mg/m\^2/day (dose level 3) must have a BSA \>= 0.73 m\^2
- +45 more criteria
You may not qualify if:
- Pregnant women or nursing mothers are excluded from this study. Female patients of childbearing potential must have a negative serum or urine pregnancy test within 7 days prior to enrollment. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. Pregnant women are excluded from this study because there are unknown but potential risks to an unborn baby from savolitinib. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with savolitinib, breastfeeding should be discontinued if the mother is treated with savolitinib
- Patients with a known serious active infection including, but not limited to human immunodeficiency virus, and tuberculosis
- Patients with a known active or resolved viral hepatitis infection
- Patients with any clinically significant unrelated systemic illness or significant cardiac, pulmonary, hepatic, or other organ dysfunction), that in the opinion of the investigator would compromise the patient's ability to tolerate protocol therapy, put them at additional risk for toxicity or would interfere with the study procedures or results
- Patients with uncontrolled hypertension (i.e., a blood pressure \[BP\] \> 95th percentile for age, height, and sex, patients with values above these levels must have their blood pressure controlled with medication prior to starting study drug)
- The normal blood pressure by height, age, and sex can be assessed by using the NIH Guidelines on the PBTC Member's website (Protocols- Generic Forms and Templates- Normal Blood Pressure by Height and Age)
- Patients with any of the following cardiac diseases
- Congestive heart failure (New York Heart Association \>= grade 2)
- Clinically significant cardiac arrhythmia
- Mean resting corrected QT interval (QTc Bazett) \> 450 msec on screening obtained from 3 electrocardiograms (EKGs) or
- Factors that may increase the risk of QTc prolongation such as chronic hypokalemia not correctable with supplements, congenital or familial long QT syndrome, or
- Family history of unexplained sudden death under 40 years of age in first-degree relatives or
- Any concomitant medication known to prolong the QT interval and cause Torsade de Pointes. These drugs must have been discontinued prior to the start of administration of study treatment in accordance with guidance
- Any clinically important abnormalities in rhythm, conduction, or morphology of resting EKG, e.g., complete left bundle branch block, third degree heart block, second degree heart block, PR interval \> 250 msec
- Patients with history of liver cirrhosis of any origin and clinical stage; or history of other serious liver disease or chronic disease with relevant liver involvement, with or without normal liver function tests (LFTs), including but not limited to:
- +20 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (12)
Children's Hospital Los Angeles
Los Angeles, California, 90027, United States
Lucile Packard Children's Hospital Stanford University
Palo Alto, California, 94304, United States
Children's Hospital Colorado
Aurora, Colorado, 80045, United States
Children's National Medical Center
Washington D.C., District of Columbia, 20010, United States
Lurie Children's Hospital-Chicago
Chicago, Illinois, 60611, United States
Memorial Sloan Kettering Cancer Center
New York, New York, 10065, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
Nationwide Children's Hospital
Columbus, Ohio, 43205, United States
Children's Hospital of Pittsburgh of UPMC
Pittsburgh, Pennsylvania, 15224, United States
Saint Jude Children's Research Hospital
Memphis, Tennessee, 38105, United States
Texas Children's Hospital
Houston, Texas, 77030, United States
Hospital for Sick Children
Toronto, Ontario, M5G 1X8, Canada
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
PBTC-049 closed to accrual on 03/21/2025 one patient short of the planned accrual when it was determined that the efficacy aim would not be met. All patients are off treatment and off study.
Results Point of Contact
- Title
- Dr. Arzu Onar-Thomas
- Organization
- St.Jude Children's Research Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
Ralph Salloum
Pediatric Brain Tumor Consortium
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- LTE60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 24, 2018
First Posted
July 26, 2018
Study Start
November 27, 2018
Primary Completion
April 22, 2026
Study Completion (Estimated)
May 27, 2027
Last Updated
July 30, 2026
Results First Posted
June 23, 2026
Record last verified: 2026-05