MSG Use With 18F-DCFPyL PET/CT Imaging

Status Completed

Clinical Trial Summary

18F-DCFPyL is an agent that binds to prostate specific membrane antigen (PSMA). Due to high levels of PSMA in prostate cancer, treatments targeting PSMA have been developed to deliver therapy to these specific target cells. Unfortunately when this treatment is delivered there is radiotracer uptake in the salivary glands and kidneys, not related to cancer, which causes dry mouth and causes patients to stop treatment. It is proposed that having tomato juice containing monosodium glutamate (MSG) may reduce radiotracer uptake in the salivary glands and kidneys and reduce damage to these tissues.

Clinical Trial 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 Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT03693742
Study type	Interventional
Source	British Columbia Cancer Agency
Contact
Status	Completed
Phase	N/A
Start date	November 4, 2019
Completion date	May 8, 2020

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.