- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03693742
MSG Use With 18F-DCFPyL PET/CT Imaging
Evaluation of Monosodium Glutamate (MSG) to Reduce Salivary Gland and Renal Accumulation of PSMA-binding Radiopharmaceuticals
Study Overview
Status
Intervention / Treatment
Detailed Description
This is a prospective single cohort study to evaluate the utility of MSG in reducing salivary gland radiotracer uptake, in patients who undergo an 18F-DCFPyL Positron Emission tomography / Computer Tomography (PET/CT) scan.
18F-DCFPyL PET/CT scans Each participant will receive 2 18F-DCFPyL PET/CT scans at the BC Cancer - Vancouver Centre, as part of this research sub-study. Each participant will receive tomato juice before each appointment. One visit they will have tomato juice containing MSG and the other will be a placebo (standard tomato juice).
Each study participant will receive a bolus intravenous dose of 18F-DCFPyL. The participant will rest in a comfortable chair for 120 minutes and will then be taken to the PET/CT scanner for images.
24 hour follow-up All participants will be requested to either return to the functional imaging department approximately 24 hours (acceptable range 16-28 hours) after the injection of 18F-DCFPyL and tomato juice consumption or agree to be contacted by phone. The participants will be asked if they experienced any undesirable effects following the administration of 18F-DCFPyL and tomato juice, or in the intervening 24 hours. The local site attending nuclear medicine physician will then make an assessment as to whether these effects are likely related to 18F-DCFPyL and/or tomato juice administration.
The study is expected to take approximately 1 year for accrual.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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British Columbia
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Vancouver, British Columbia, Canada, V5Z 4E6
- BC Cancer
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Known prostate cancer with biochemical recurrence after initial curative therapy with radical prostatectomy, presenting with a prostate specific antigen (PSA) greater than 0.4 ng/mL.
- Subjects with findings on other examinations (such as plain x-ray, CT, MRI or bone scintigraphy and others) that are suspicious for metastatic disease but not conclusively diagnostic of metastatic disease, within 3 months of PET scan.
- Known prostate cancer with biochemical recurrence after initial curative therapy with radiation therapy (including brachytherapy), with a PSA level >2 ng/mL above the nadir after radiation therapy.
- Castration resistant prostate cancer with a minimum PSA of 2.0 ng/mL with 2 consecutive rises above the nadir and castrate levels of testosterone (<1.7 nmol/L). Treatment does not need to be discontinued before the 18F-DCFPyL scan.
- Eastern Cooperative Oncology Group (ECOG) performance status of 2 or less.
Exclusion Criteria:
- Medically unstable (eg. acute illness, unstable vital signs)
- Unable to lie supine for the duration of imaging
- Unable to provide written consent
- Exceeds safe weight limit of the PET/CT bed (204.5 kg) or unable to fit through the PET/CT bore (diameter 70 cm)
- Severe uncontrolled hypertension (systolic blood pressure above 140 mm Hg and diastolic blood pressure above 90 mm Hg, or systolic blood pressure above 180 mm Hg, or diastolic blood pressure above 110 mg Hg). Patients with controlled hypertension under medication are eligible
- History of severe asthma that has led to hospitalizations or emergency room visits
- History of intolerance to MSG
- History of severe headaches or migraines triggered by food or MSG
- Participants on a sodium/salt restricted diet due to other medical conditions
- No new treatment has started between the first and second 18F-DCFPyL PET/CT
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: 18F-DCFPyL PET/CT scan with MSG drink
Food grade MSG will be dissolved in low sodium tomato juice, and administered orally before 18F-DCFPyL administration.
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Participants will have their weight recorded and baseline vital signs (blood pressure, heart rate, and oxygen saturation level) measured prior to the tomato juice ingestion, immediately prior to 18F-DCFPyL injection and 5 to 15 minutes after injection. The participant will receive a bolus intravenous dose of 18F-DCFPyL. After 60 min, the vital signs will be recorded and again two hours after 18F-DCFPyL. Immediately before scanning, the participants will be taken to a designated washroom and asked to void. The PET/CT image acquisition time will be approximately 30 minutes.
Participants will consume 300mL of tomato juice with MSG 30 minutes prior to 18F-DCFPyL injection.
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Placebo Comparator: 18F-DCFPyL PET/CT scan with placebo drink
Regular tomato juice will be used, and administered orally before 18F-DCFPyL administration.
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Participants will have their weight recorded and baseline vital signs (blood pressure, heart rate, and oxygen saturation level) measured prior to the tomato juice ingestion, immediately prior to 18F-DCFPyL injection and 5 to 15 minutes after injection. The participant will receive a bolus intravenous dose of 18F-DCFPyL. After 60 min, the vital signs will be recorded and again two hours after 18F-DCFPyL. Immediately before scanning, the participants will be taken to a designated washroom and asked to void. The PET/CT image acquisition time will be approximately 30 minutes.
Participants will consume 300mL of tomato juice 30 minutes prior to 18F-DCFPyL injection.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Salivary Gland Maximal Standardized Uptake Values Corrected for Lean Body Mass (SULmax) for 18F-DCFPyL
Time Frame: scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Comparison of MSG and placebo 18F-DCFPyL salivary gland (submandibular) accumulation measured by the maximal standardized uptake values corrected for lean body mass (SULmax).
For determination of salivary gland uptake, regions of interest will be drawn around the salivary glands, using a standardized contouring method, to measure the SULmax.
The average SULmax in the organs will be used for this analysis.
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scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Renal Maximal Standardized Uptake Values Corrected for Lean Body Mass (SULmax) for 18F-DCFPyL
Time Frame: scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Comparison of MSG and placebo 18F-DCFPyL renal accumulation measured by the maximal standardized uptake values corrected for lean body mass (SULmax).
For determination of renal uptake, regions of interest will be drawn around the kidneys, using a standardized contouring method, to measure the SULmax.
The average SULmax in the organs will be used for this analysis.
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scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Tumour Maximal Standardized Uptake Values Corrected for Lean Body Mass (SULmax) for 18F-DCFPyL
Time Frame: scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Comparison of MSG and placebo 18F-DCFPyL tumour accumulation measured by the maximal standardized uptake values corrected for lean body mass (SULmax).
For determination of tumour uptake, all malignant lesions, the SULmax were measured using the PET Edge tool running on MIM.
All regions of interest were created in one dataset by a blinded observer, and then saved and compared to the identical location in the second dataset for matched comparisons of activity.
The median SULmax in the malignant lesions will be used for this analysis.
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scan with MSG and 3-7 days later, scan with Placebo (or vice versa)
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Number of Participants With Tomato Juice (Containing Either MSG or Placebo) Related Adverse Events as Assessed by Abnormal Vital Sign Measurement.
Time Frame: 2 hours
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Vital signs (blood pressure, heart rate and pulse oximetry) will be measured at two time points (before tomato juice and 2 hours after radiotracer injection).
All values that fall outside of the normal parameters will be assessed by a physician and reported as an adverse event.
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2 hours
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- H18-02227
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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