Study Stopped
Principal investigator transition
Ferumoxytol MRI in Assessing Response to Pembrolizumab in Patients With Glioblastoma
Response Assessment to Pembrolizumab With Standard of Care Therapy in Glioblastoma Using Ferumoxytol Steady State Imaging- A Pilot Study
3 other identifiers
interventional
52
1 country
1
Brief Summary
This pilot phase II trial studies how well ferumoxytol magnetic resonance imaging (MRI) works in assessing response to pembrolizumab in patients with glioblastoma. Diagnostic procedures, such as ferumoxytol MRI, may help measure a patient's response to pembrolizumab treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Dec 2017
Longer than P75 for phase_2
1 active site
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
November 2, 2017
CompletedFirst Posted
Study publicly available on registry
November 20, 2017
CompletedStudy Start
First participant enrolled
December 20, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
June 23, 2025
CompletedResults Posted
Study results publicly available
September 9, 2025
CompletedSeptember 9, 2025
September 1, 2025
6 years
November 2, 2017
July 3, 2025
September 4, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Specificity of Identifying Pseudoprogression
Sensitivity and specificity are measures for the diagnostic performance of rCBV (relative cerebral blood volume) to distinguish between pseudoprogression and true progression. Sensitivity measures how well Fe-SS-rCBV identifies those who have true progression, and specificity those who have psuedoprogression. Because rCBV is a continuous variable, the cutoff point for this analysis was 1.75.
At suspected progression, up to two years.
Sensitivity of Identifying True Progression
The calculation of sensitivity is based on steady state rCBV (relative cerebral blood volume) at suspected progression. Cutoff point 1.75. Sensitivity and specificity are measures for the diagnostic performance of rCBV (relative cerebral blood volume) to distinguish between pseudoprogression and true progression. Sensitivity measures how well Fe-SS-rCBV identifies those who have true progression, and specificity those who have psuedoprogression. Because rCBV is a continuous variable, the cutoff point for this analysis was 1.75.
At suspected progression, up to two years.
Secondary Outcomes (5)
Progression Free Survival
Until off study, up to 5 years.
Overall Survival
Until off study, up to 5 years.
Duration of Best Response
Until off study, up to 5 years.
Disease Response
Until off study, up to 5 years.
Determine the Safety and Toxicity of Pembrolizumab When Used in Combination With Standard of Care Chemo Radiation.
30 days after last dose of pembrolizumab, up to 2 years.
Study Arms (1)
Diagnostic (Ferumoxytol MRI, pembrolizumab)
EXPERIMENTALPatients receive pembrolizumab IV over 30 minutes on day 1. Treatment repeats every 3 weeks for up to 2 years or 35 cycles in the absence of disease progression or unacceptable toxicity. Patients also receive ferumoxytol IV and undergo MRI scans at baseline, 4 weeks after the last day of standard of care stereotactic radiosurgery or chemoradiotherapy, every 9 weeks thereafter until suspected radiographic progression, and then within 4 weeks from suspected radiographic progression.
Interventions
Given IV
Undergo ferumoxytol MRI
Given IV
Eligibility Criteria
You may qualify if:
- Be willing and able to provide written informed consent/assent for the trial
- Have a life expectancy of at least 6 months
- Have a histologically confirmed diagnosis of:
- Newly diagnosed glioblastoma (World Health Organization \[WHO\] grade IV)
- Have Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 on stable or reducing dose of steroids for symptom management (not more than 8 mg of dexamethasone or equivalent per day) for 5 days prior to enrollment; change in glucocorticoid dose for any purpose other than to modulate symptoms from an adverse event; Note: The use of physiologic doses (e.g., prednisone 10 mg) of corticosteroids may be approved after consultation with Merck \& Co; use of prophylactic corticosteroids to avoid allergic reactions (e.g. IV contrast dye) is permitted
- At least 14 days from any major surgeries including brain biopsy before the start of study drug pembrolizumab
- Absolute neutrophil count (ANC) \>= 1,500/mcL
- Platelets \>= 100,000/mcL
- Hemoglobin \>= 9 g/dL or \>= 5.6 mmol/L without transfusion or erythropoietin (EPO) dependency (within 7 days of assessment)
- Serum creatinine =\< 1.5 X upper limit of normal (ULN) OR measured or calculated creatinine clearance (glomerular filtration rate \[GFR\] can also be used in place of creatinine or creatinine clearance \[CrCl\]) \>= 60 mL/min for subject with creatinine levels \> 1.5 X institutional ULN
- Serum total bilirubin =\< 1.5 X ULN OR direct bilirubin =\< ULN for subjects with total bilirubin levels \> 1.5 ULN
- Aspartate aminotransferase (AST) (serum glutamic oxaloacetic transaminase \[SGOT\]) and alanine aminotransferase (ALT) (serum glutamic pyruvic transaminase \[SGPT\]) =\< 2.5 X ULN OR =\< 5 X ULN for subjects with liver metastases
- Albumin \>= 2.5 mg/dL
- International normalized ratio (INR) or prothrombin time (PT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or partial thromboplastin time (PTT) is within therapeutic range of intended use of anticoagulants
- Activated partial thromboplastin time (aPTT) =\< 1.5 X ULN unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants
- +3 more criteria
You may not qualify if:
- Has a diagnosis of immunodeficiency including human immunodeficiency virus (HIV) (HIV 1/2 antibodies) and is not on continuous daily immunosuppressive therapy within 7 days prior to the first dose of trial treatment; (an exception to this is the use of steroids for brain edema and resulting symptom); subjects may receive a stable or reducing dose of steroids (up to 8 mg dexamethasone or equivalent for at least 5 days prior to signing consent) to prevent or manage cerebral edema; subjects requiring over 8mg of dexamethasone per day on or five days prior to signing consent are excluded)
- Has a known history of active TB (Bacillus tuberculosis)
- Hypersensitivity to pembrolizumab or ferumoxytol or any of their excipients
- Has had a prior anti-cancer monoclonal antibody (mAb) within 4 weeks prior to study day 1 or who has not recovered (i.e., =\< grade 1 or at baseline) from adverse events due to agents administered more than 4 weeks earlier
- Has a known additional malignancy that is progressing or requires active treatment; exceptions include basal cell carcinoma of the skin or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer
- Has active autoimmune disease that has required systemic treatment in the past 2 years (i.e. with use of disease modifying agents, corticosteroids or immunosuppressive drugs); replacement therapy (e.g. thyroxine, insulin, or physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment
- Has known history of, or any evidence of active, non-infectious pneumonitis
- Has an active infection requiring systemic therapy
- Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
- Has known psychiatric or substance abuse disorders that would interfere with cooperation with the requirements of the trial
- Is pregnant or breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the pre-screening or screening visit through 120 days after the last dose of trial treatment
- Has known active hepatitis B (e.g., hepatitis B surface antigen \[HBsAg\] reactive) or hepatitis C (e.g., hepatitis C virus \[HCV\] ribonucleic acid \[RNA\] \[qualitative\] is detected)
- Has received a live vaccine within 30 days of planned start of study therapy; Note: Seasonal influenza vaccines for injection are generally inactivated flu vaccines and are allowed; however intranasal influenza vaccines (e.g., Flu-Mist) are live attenuated vaccines, and are not allowed
- Subjects with clinically significant signs of uncal herniation, such as acute pupillary enlargement, rapidly developing motor changes (over hours), or rapidly decreasing level of consciousness, are not eligible
- Subjects with known allergic or hypersensitivity reactions to parenteral iron, parenteral dextran, parenteral iron-dextran, or parenteral iron-polysaccharide preparations (Ferumoxytol Investigator's Drug Brochure, 2009); subjects with significant drug or other allergies or autoimmune diseases may be enrolled at the investigator's discretion
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- OHSU Knight Cancer Institutelead
- National Cancer Institute (NCI)collaborator
- Oregon Health and Science Universitycollaborator
Study Sites (1)
OHSU Knight Cancer Institute
Portland, Oregon, 97239, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Amy Huddleston
- Organization
- Oregon Health and Science University
Study Officials
- PRINCIPAL INVESTIGATOR
Leslie Muldoon, Ph.D.
OHSU Knight Cancer Institute
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
November 2, 2017
First Posted
November 20, 2017
Study Start
December 20, 2017
Primary Completion
December 31, 2023
Study Completion
June 23, 2025
Last Updated
September 9, 2025
Results First Posted
September 9, 2025
Record last verified: 2025-09