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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

NCT number NCT03693742
Study type Interventional
Source British Columbia Cancer Agency
Contact Hayley Allan
Phone 604-877-6000
Status Not yet recruiting
Phase N/A
Start date February 1, 2019
Completion date December 31, 2019

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