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Gallium 68 PSMA-11

Radiopharmaceuticals

On the scheduled visit date for the study,

* An intravenous cannula (plug) will be inserted in a vein in the participant's arm, through which the 68-Ga PSMA radiotracer for the scan will be injected. The infusion will take about 1-2 minutes.
* PET imaging will be performed with a dedicated PET/CT scanner. 2.5-6.0 mCi (depending on weight of the patient) of PSMA radiotracer will be injected intravenously.

68-Ga PSMA PET scan

Dr Wen-Long NEI, MD

The objectives of this pilot feasibility study, which is on the use of 68-Ga PSMA PET imaging of salivary gland tumours, are

* to determine the proportion of patients with high PSMA-ligand uptake on Ga-68 PSMA imaging in locally advanced, recurrent or metastatic salivary gland cancers and other rare cancer; and
* to determine if in vitro PSMA expression correlates to PSMA-ligand uptake on Ga-68 PSMA imaging in locally advanced, recurrent or metastatic salivary gland cancers and other rare cancers.

The hypotheses of this study are that there is high PSMA-ligand uptake on Ga-68 PSMA imaging in locally advanced, recurrent or metastatic salivary gland cancers and other rare cancers; and that in vitro PSMA expression correlates to PSMA-ligand uptake on Ga-68 PSMA imaging.

The potential participant will be screened and confirmed for eligibility by the appropriate study-team member. A signed IRB approved informed consent will be obtained prior to conducting any study-related procedures.

On the scheduled visit date for the study,

* An intravenous cannula (plug) will be inserted in a vein in the participant's arm, through which the 68-Ga PSMA radiotracer for the scan will be injected. The infusion will take about 1-2 minutes.
* PET imaging will be performed with a dedicated PET/CT scanner. 2.5-6.0 mCi (depending on weight of the patient) of PSMA radiotracer will be injected intravenously.
* A PET scan will be done around 60 minutes after the injection of the 68-Ga PSMA imaging agent.
* During imaging, the participant will be asked to lie still and may be asked to hold his/her breath for a few seconds.
* Imaging will be performed using a PET/CT, which will take 30 to 40 minutes to complete. Imaging of the body from vertex to mid thigh or feet will be obtained.
* After the completion of the scan, the plug will be removed.

A Final Study Visit will take place on that one scheduled day. The participant will not need to visit the doctor's office during the course of the study outside of their usual scheduled doctor's follow up appointments.

PSMA-PET Imaging of Salivary Gland Tumours and Other Rare Cancers

The proportion of patients with PSMA-ligand uptake greater than liver uptake on Ga-68 PSMA imaging in locally advanced, recurrent or metastatic salivary gland cancers and other rare cancer.

Correlation between the value of IHC PSMA expression and the PSMA PET SUVmax in locally advanced, recurrent or metastatic salivary gland cancers and other rare cancers.

National Cancer Centre, Singapore

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
PSMA-PET Imaging of Salivary Gland Tumours and Other Rare Cancers	NCT05581979	Salivary Gland ... Rare Malignant ...	68-Ga PSMA PET ...	21 Years - 99 Years	National Cancer Centre, Singapore
PSMA-PET Imaging of Salivary Gland Tumours and Other Rare Cancers	NCT05581979	Salivary Gland ... Rare Malignant ...	68-Ga PSMA PET ...	21 Years - 99 Years	National Cancer Centre, Singapore

Spots Global Cancer Trial Database for rare tumours

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