Assessment of Primary and Metastatic Brain Tumor Hypoxia With Fluoromisonidazole, FDG and Water

March 18, 2024 updated by: University of Utah

Assessment of Primary and Metastatic Brain Tumor Hypoxia With 18F-Fluoromisonidazole, [18F]Fluoro-2-deoxy-D-glucose (FDG) and [15O]Water (H215O)

Purpose of Study This exploratory clinical study will investigate FMISO (fluoromisonidazole) in patients with (1) newly diagnosed primary malignant brain tumors (WHO [World Health Organization] Grade III or IV glial-based tumors) who have not had a complete surgical resection and by contrast MRI (Magnetic resonance imaging) have residual tumor > 1.0 cm in diameter and will be receiving radiotherapy or (2) newly diagnosed brain metastasis (> 1.0 cm in diameter who will be receiving radiotherapy. The ability to accurately assess tumor hypoxia and accurately determine the amount/degree of tumor hypoxia could potentially change patient management once validated as tumor hypoxia is known to be associated with a poor prognosis [Eyler 2008].

Study Overview

Detailed Description

Malignant Brain Tumors (Primary and Metastatic) Despite significant advances in the understanding of brain tumor biology and genetics as well as improvements in surgical techniques, radiotherapy administration, and chemotherapy methods, many brain tumors remain incurable. Many brain tumors are highly infiltrative neoplasms, and are therefore unlikely to be cured by local treatments such as surgery, focal radiotherapy, radiosurgery or brachytherapy.

Rationale and Goals of Study The preliminary efficacy of the radiopharmaceutical, 1H-1-(3-[18F]-fluoro-2-hydroxy-propyl)-2-nitro-imidazole [18F]-fluoromisonidazole, [18F]FMISO, FMISO (fluoromisonidazole), a radiopharmaceutical that directly assess tumor hypoxia using Positron Emission Tomography(PET) will be assessed.

This preliminary/exploratory clinical study will investigate [F-18]FMISO in 30 evaluable patients with newly diagnosed primary brain tumor or brain metastasis. We expect that up to 35 -40 total patients may be enrolled in this study. This will assure that 30 evaluable patients (patients who have complete imaging results and blood metabolism data available for data analysis). In certain patients the blood metabolism data is not acceptable for final analysis typically due to difficulty in drawing it rapidly enough due to the vein collapsing during the rapid sampling required.

When possible we will also correlate FMISO uptake with the typical in-vitro test used to assess proliferation, Ki-67 (protein) and other experimental assessments of hypoxia. This correlation will be made whenever possible in those patients where tumor tissue is obtained as part of standard care.

OBJECTIVES:

Primary Objective of Study - Synopsis The primary objective of this study is to determine the association of FMISO PET (positron emission tomography) uptake (hypoxic volume (HV)), highest tumor:blood ratio [T/Bmax]), FDG ([18F]-2 fluoro-2-deoxy-d-glucose) uptake, and tumor blood flow/perfusion determined with water (H2O) and MRI and correlate these variables with overall survival (OS) and time to progression (TTP) in participants with newly diagnosed primary brain tumors or brain metastases.

The Hypotheses to be Tested

Three exploratory hypotheses will be studied. These include:

  1. The first hypothesis to be tested is that increased FMISO PET uptake (hypoxic volume [HV], highest tumor:blood ratio [T/Bmax]) is correlated with a shorter overall survival and a shorter time to progression. An exploratory evaluation assessing combinations of PET imaging variables such as hypoxic volume [HV], highest tumor:blood ratio [T/Bmax], FDG-standardized uptake value (SUV), FDG quantitative parameters and blood flow as well as magnetic resonance (MR) perfusion and blood volume will be assessed to see if they correlate with survival and time to progression.
  2. A second hypothesis to be tested is that FMISO is safe and non toxic in the dose administered in this study in patients with primary and metastatic brain tumors. This will be assessed in the first 10 patients enrolled in the study. Even though there have been numerous published studies using FMISO in humans in several different tumor types little human safety data has been published. Laboratory tests (except urinalysis) will be repeated at approximately 24 hours in the first 10 and compared to the screening values.
  3. A third exploratory hypothesis to be tested is that FMISO uptake (hypoxic volume [HV], highest tumor:blood ratio [T/Bmax]) will correlate with increased FDG uptake and possibly with reduced blood flow/perfusion as determined with H215O PET imaging and MRI

Study Type

Interventional

Enrollment (Actual)

2

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Utah
      • Salt Lake City, Utah, United States, 84112
        • Huntsman Cancer Institute

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Adult patients. The patient must have a newly diagnosed primary malignant brain tumors (WHO Grade III or IV glial-based tumors) and not have had a complete surgical resection and by contrast MRI (obtained within 14 days prior to the FMISO study)
  2. Patients must be 18 years or older for inclusion in this research study.
  3. Patients must document their willingness to be followed until death or time of progression.
  4. All patients must sign a written informed consent and HIPAA authorization in accordance with institutional guidelines.
  5. Female patients who are not postmenopausal or surgically sterile will undergo a serum pregnancy test prior to the research PET scans.
  6. Pre-treatment laboratory tests for patients receiving [18F]FMISO must be performed within 21 days prior to study entry.

Exclusion Criteria:

  1. Patients with known allergic or hypersensitivity reactions to previously administered radiopharmaceuticals.
  2. Patients who are pregnant or lactating or who suspect they might be pregnant.
  3. Adult patients who require monitored anesthesia for PET scanning.
  4. Patients who are too claustrophobic to undergo MRI or PET imaging
  5. Patients who cannot undergo MRI imaging due to MRI exclusion criteria

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: All Participants
All enrolled participants will complete three imaging sessions on separate days, beginning with a research MRI, then a PET scan with FDG and [15O]water, and a PET scan with FMISO. The two PET scans will be in any order on different days within one week of each other, and preferably on consecutive days. The research MRI will be within 14 days of the first PET scan.
Brain scan with imaging tracer used for measuring glucose metabolism in the assessment, diagnosis, and staging of patients with cancer
Other Names:
  • FDG
  • [18F]FDG
  • FDG-PET/CT
Brain scan with radiopharmaceutical imaging tracer that directly assesses tumor hypoxia
Other Names:
  • FMISO
  • [18F]FMISO
  • FMISO-PET/CT
Brain scan with imaging tracer used for measuring tumor blood flow/perfusion
Other Names:
  • H2[15O]
  • H2[15O]-PET-CT
Brain scan to assess tumor size and tumor blood flow/perfusion
Other Names:
  • MRI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Determination of multi-tracer update times as related to overall survival and time to progression
Time Frame: estimated 2 years
determine the association of FMISO PET uptake (hypoxic volume [HV]), highest tumor:blood ratio [T/Bmax]), FDG uptake, and tumor blood flow/perfusion determined with H215O and MRI and correlate these variables with overall survival (OS) and time to progression (TTP) in participants with newly diagnosed primary brain tumors or brain metastases.
estimated 2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: John M Hoffman, MD, University of Utah

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 27, 2013

Primary Completion (Actual)

May 3, 2014

Study Completion (Actual)

May 3, 2014

Study Registration Dates

First Submitted

November 1, 2010

First Submitted That Met QC Criteria

November 22, 2010

First Posted (Estimated)

November 23, 2010

Study Record Updates

Last Update Posted (Actual)

March 20, 2024

Last Update Submitted That Met QC Criteria

March 18, 2024

Last Verified

March 1, 2024

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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