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RecruitingNCT06594315Updated Sep 2, 2026

Assessing Brain Metabolism Using MRS With Deuterated Glucose

An observational study in Glioma, sponsored by University of California, San Francisco. Recruiting at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-02.

Sponsored by University of California, San Francisco · Observational

From the registry’s dates

  • Started Jul 2022; still recruiting 4 years 2 months later.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
80
Ages
18 Years and older
Sex
All
01

Study summary

This study will investigate the use of Hydrogen 1 (1H) magnetic resonance spectroscopy (MRS) with deuterated glucose (2H-glucose) to detect dynamic glucose uptake in the brain.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To define the most appropriate imaging parameters of 1H MRS for obtaining deuterium-labeled glucose metabolism (Cohorts 1 and 2).
  2. To evaluate treatment induced metabolic changes after the administration of 2H-glucose in participants with glioma (Cohort 3).

OUTLINE:

Participants with and without glioma will be evaluated to develop a robust strategy for obtaining 2H-glucose metabolism in twenty healthy participants (cohort 1) and thirty participants with glioma (cohort 2), while the remaining thirty glioma participants will be studied at baseline and after completion of non-investigational therapy (cohort 3).

02

Conditions studied

  • Glioma

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Keywords

  • Glucose Metabolism
03

In context

Glioma

1,397 studies on the registry are indexed under Glioma; 351 are open to participants now.

This study's planned enrollment of 80 is close to the median of 88 across 238 observational studies indexed under Glioma.

Browse Glioma studies →

Lead sponsor

University of California, San Francisco is the lead sponsor of 2,132 studies on the registry; 375 are open to participants now.

Of its 262 completed or terminated interventional studies of FDA-regulated products, 196 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Healthy adults and adult patient referrals from the UCSF Neuro-Oncology Service and Department of Neurological Surgery.

Inclusion criteria

  1. Participants must be >= 18 years old

    • Cohort 1: Healthy controls
    • Cohort 2: Participants with histological proven glioma who have evidence of evaluable disease (with contrast enhancing lesion or non-enhancing lesion > 4 cc) based on a prior MR scan.
    • Cohort 3: Participants with histologically proven glioma who will be undergoing any treatment.
  2. Participants must not have any significant medical illness that in the investigator's opinion cannot be adequately controlled with appropriate therapy, would compromise the subject's ability to participate in this study or any disease that will obscure toxicity or dangerously impact response to the imaging agent.
  3. Participants must not be pregnant or breast-feeding. Persons of childbearing potential are required to obtain a negative serum or urine pregnancy test within 14 days of the scan. Effective contraception (men and women) must be used in subjects of childbearing potentials.
  4. Participants must sign an informed consent indicating that they are aware of the investigational nature of the study

Exclusion criteria

Exclusion Criteria:

Participants must be excluded from participating in this study if they are not able to comply with the study and/or follow-up procedures.

  1. Participants exceeding the weight limitations of the scanner (300 pounds)
  2. Inability to lie still for the entire imaging time (e.g., cough, severe arthritis, etc.)
  3. Inability to complete the study due to other reasons (severe claustrophobia, MR incompatible medical implants or devices, inability to comply with pre-procedure fasting, etc.)
  4. Pre-examination blood glucose level of > 120 mg/dL as measured by point of care finger stick blood glucose test prior to MR examination.
  5. Participants, either healthy volunteers (recruited for cohort 1) or participants with glioma (for cohorts 2 \&3), have history of diabetes mellitus.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
80 participants (estimated)
Patient registry
No

Groups and cohorts

  • Cohort 1: Healthy Controls

    Twenty healthy controls for will have 2H-glucose metabolism in measured for development of robust strategy in optimizing acquisition parameters.

    Drug: Deuterated Glucose · Procedure: Magnetic Resonance Imaging (MRI) · Procedure: Blood Sample · Procedure: MR spectroscopy (MRS)

  • Cohort 2: Glioma participants (Single Time point)

    Thirty participants with glioma who may or may not have received prior treatment for testing the optimized imaging protocol developed in Cohort 1.

    Drug: Deuterated Glucose · Procedure: Magnetic Resonance Imaging (MRI) · Procedure: Blood Sample · Procedure: MR spectroscopy (MRS)

  • Cohort 3: Glioma participants (Multiple Time points)

    Thirty participants who will receive non-investigational treatment for glioma enrolled to test the evaluation for treatment induced metabolic changes at baseline and post- non-investigational treatment.

    Drug: Deuterated Glucose · Procedure: Magnetic Resonance Imaging (MRI) · Procedure: Blood Sample · Procedure: MR spectroscopy (MRS)

Interventions

  • DrugDeuterated Glucose

    Given orally

    Also known as: Hydrogen gas (H2) glucose, [6,6'-2H2] glucose

  • ProcedureMagnetic Resonance Imaging (MRI)

    Imaging procedure performed at University of California, San Francisco

    Also known as: MRI

  • ProcedureBlood Sample

    Capillary blood from the fingertip

  • ProcedureMR spectroscopy (MRS)

    Imaging procedure performed at University of California, San Francisco

    Also known as: MRS

06

What researchers measure

Primary outcomes

  1. Signal-to-noise ratio (Cohort 1 & 2)

    The signal-to-noise ratio (SNR) in metabolite concentrations will be calculated and compared on a voxel-by-voxel basis and via summary parameters (mean, median, and max) from the regions of interest (ROIs) of the anatomic and metabolic lesions on the imaging scan. Peaks with SNR \> 5.0 are considered detectable

    Time frame: Day of imaging (1 day)

  2. Mean difference in metabolite concentrations (Cohort 1 & 2)

    Mean difference in metabolite concentrations of 2H labeling of these metabolites will be calculated and compared on a voxel-by-voxel basis and via summary parameters (mean, median, and max) from the ROIs of the anatomic and metabolic lesions.

    Time frame: Day of imaging (1 day)

  3. Mean difference in fractional enrichment (Cohort 1 & 2)

    Mean difference in fractional enrichment of 2H labeling of these metabolites will be calculated and compared on a voxel-by-voxel basis and via summary parameters (mean, median, and max) from the ROIs of the anatomic and metabolic lesions.

    Time frame: Day of imaging (1 day)

  4. Mean metabolic turnover over time (Cohort 3)

    Estimates of the extent of change over time following non-investigational treatment obtained at the baseline and one repeated after receiving treatment will be compared.

    Time frame: Up to 21 days after the completion of non-investigational treatment

07

Study locations

1 of 1 sites recruiting
  • University of California, San Francisco
    San Francisco, California 94143, United States
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 2, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06594315
Lead sponsor
University of California, San Francisco
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Jul 20, 2022
Primary completion
Jul 31, 2027 (estimated)
Completion
Jul 31, 2027 (estimated)
Last update
Sep 2, 2026

Study contacts

Wendy Ma
Contact
Wendy.Ma@ucsfe.du
(415) 514-4418
Yan Li, PhD
principal investigator · University of California, San Francisco

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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