Measuring Fatty Acid Oxidation in Gliomas Using 18F-FPIA PET/MRI

Determining the Magnitude of Early Steps of Fatty Acid Oxidation in Glioma Using 18F-FPIA

Glioma is the most common primary malignant brain tumour in adults and has an extremely poor prognosis. The aim of this study is to quantify the degree of early step fatty acid oxidation in gliomas as imaged by 18F-FPIA PET/MRI in 10 evaluable patients.

The Investigators hypothesise that FPIA uptake will be higher in high-grade gliomas compared to lower grade gliomas, in keeping with a higher propensity of high grade tumours to generate ATP and NADPH via fatty acid oxidation under bioenergetic stress.

Study Overview

• Status: Completed
• Conditions: Glioma
• Intervention / Treatment: Other: PET/MRI

Detailed Description

10 evaluable participants with suspected cerebral glioma on previous MRI who are due to undergo surgical resection or biopsy will be enrolled into the study. The patients invited to participate in the study will provide full consent, but will only undergo 18F-FPIA PET/MRI imaging once they have satisfied the inclusion and exclusion criteria. Once these have been satisfied, eligible participants will proceed to 18F-FPIA PET/MRI.

On the day of imaging the participants will undergo a blood test to measure plasma concentrations of carnitine. During the scan, a single dose of 18F-FPIA (maximum, 370 MBq) IV will be administered to the participant followed by a whole brain dynamic PET/MRI scan over 66 minutes. During the MRI sequences, the participant will receive an additional IV bolus of Gadolinium contrast medium administered through a peripheral venous cannula. Arterial blood sampling through a peripheral arterial line will be performed to determine the concentration of radiotracer within arterial plasma. All the participants that are enrolled into the study will undergo biopsy or surgical resection as part of their routine clinical care, from which their tumour grade will be confirmed; the Investigators will obtain tissue from these procedures to perform metabolomics, genomics and proteomics. Surgery or biopsy will be performed typically within 2 weeks but no later than 3 months.

• Study Type: Observational
• Enrollment (Actual): 10

Contacts and Locations

Study Locations

• United Kingdom
  • London, United Kingdom, W12 0NN
    • Imperial College Healthcare NHS Trust/ Imperial College london

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Patients with radiological evidence of suspected cerebral glioma due for surgery or biopsy

Description

Inclusion Criteria:

Patients with radiological evidence of suspected cerebral glioma due for surgery or biopsy and with the following characteristics will be recruited:

• Age ≥18
• Tumour size at least 2 cm.
• WHO performance status 0 - 2.
• If female, the subject is either post-menopausal (at least 1 year), or surgically sterilized (has had a documented bilateral oophorectomy and/or documented hysterectomy for at least 2 years,), or if of childbearing potential, must have a negative urine beta human chorionic gonadotropin pregnancy test done at initial screening and on the day of tracer administration. The result of the pregnancy test must be known before administration of 18F-FPIA injection.
• The subject is able and willing to comply with study procedures, and signed and dated informed consent is obtained.
• The subject has a satisfactory medical history as judged by the investigator with no significant co-morbidities, physical examination, and vital signs findings during the screening period (from 21 days before administration).
• The subject's clinical and laboratory tests are within normal limits and/or considered clinically insignificant.

Exclusion

• The subject has received any chemotherapy, immunotherapy, biologic therapy or investigational therapy within 14 days or five half-lives of a drug (whichever is longer) prior to the first dose of 18F-FPIA injection. The subject is pregnant or lactating.
• The subject is diabetic or has uncontrolled blood glucose or blood lipid levels (clinical decision by investigator), any other chronic illness that will preclude brief discontinuation of medication, or musculoskeletal condition that would not allow comfortable performance of a 66-minute study.
• The subject has received another investigational radioactive tracer within 1 month before administration of 18F-FPIA injection.
• Anticoagulation therapy, prolonged prothrombin time, abnormal Allen's test.
• Unsatisfactory renal function (eGFR<60)

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Quantitative measurement of 18F-FPIA uptake in human gliomas	PET/MRI	Through study completion, an average of 1 year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Correlation of 18F-FPIA uptake with tumour type and histological grade including O6-methylguanine-DNA methyltransferase (MGMT) and isocitrate dehydrogenase (IDH) gene expression.	PET/MRI & IHC	Through study completion, an average of 1 year

Collaborators and Investigators

• Sponsor: Imperial College London
• Investigators: Principal Investigator: Matthew Williams, MBChB, Imperial College Healthcare NHS Trust

Study record dates

Study Major Dates

• Study Start (Actual): December 6, 2018
• Primary Completion (Actual): August 7, 2020
• Study Completion (Actual): August 7, 2020

Study Registration Dates

• First Submitted: September 17, 2019
• First Submitted That Met QC Criteria: September 19, 2019
• First Posted (Actual): September 20, 2019

Study Record Updates

• Last Update Posted (Estimate): January 10, 2023
• Last Update Submitted That Met QC Criteria: January 9, 2023
• Last Verified: January 1, 2023

More Information

Terms related to this study

• Keywords: PET/MRI; Fatty Acid Oxidation
• Additional Relevant MeSH Terms: Neoplasms by Histologic Type; Neoplasms; Neoplasms, Glandular and Epithelial; Neoplasms, Neuroepithelial; Neuroectodermal Tumors; Neoplasms, Germ Cell and Embryonal; Neoplasms, Nerve Tissue; Glioma
• Other Study ID Numbers: 18HH4394; 228245 (Other Identifier: IRAS)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No