Introduction of Y90-PET-CT Post Radioembolisation Therapy Scans

Trial Title: Introduction of Y90-PET-CT Post Radioembolisation Therapy Scans

NCT ID: NCT06123676

Condition: Cancer

Study type: Interventional

Study phase: N/A

Overall status: Recruiting

Study design:

Allocation: N/A

Intervention model: Single Group Assignment

Primary purpose: Diagnostic

Masking: None (Open Label)

Intervention:

Intervention type: Device
Intervention name: Y90-PET-CT scan
Description: 40 min extra PET-CT scan - no extra injection of radiotracer. We image the Y90-microspheres administered to these patients during the therapy
Arm group label: Single arms

Other name: Y90-PET-CT protocol post-therapy scan for patients undergoing 90Y-microspheres or 90Y-radioembolization treatment or SIRT at the Christie NHS Hospital

Summary: Yttrium-90, attached to microspheres, usually referred to as 90Y-microspheres or Y-90 radioembolisation, can be used in some cases to treat patients with liver tumours or liver metastasis. The treatment aim is to infuse the 90Ymicrospheres into the patient's liver. The microspheres get trapped in the lesions of micro-blood vessels while the yttrium-90, a radioactive compound, delivers radiation doses locally at these sites and damages the diseased cells. Therapy is performed in such a way the 90Y-microspheres are localised in the tumour areas minimising damage to the healthy liver tissue. This treatment requires many steps involving professionals from different medical disciplines. Patients are scanned in the nuclear Medicine Department on a gamma camera the day after the treatment. This scan is referred as Y-90 bremsstrahlung-SPECT. This posttherapy scan provides a 3-dimensional (3D) image of the distribution of the therapeutic agent in the patient's abdomen so an assessment of how much of the therapeutic agent has gone to the sites of disease can be performed. In this research project, the investigators would like to evaluate an alternative post-therapy scan to the one routinely performed on the gamma camera. The alternative scan is done on a PET-CT scanner and is referred to as Y90-PET-CT. This type of scan has been reported to provide improved quality images, providing more accurate information on the distribution of the patients therapeutic dose. For this research project, the investigators will invite a small number of patients undergoing this therapy to be scanned twice after treatment: with the current post-therapy scan on a gamma camera; and with the newly proposed scan method, Y90-PET-CT. Depending on the outcomes of this project, assessed by an expert panel of radiologists and medical physicists, the investigators will determine whether we will introduce this new scanning method into clinical practice in the future.

Detailed description: The study will be conducted on patients with liver cancer and/or liver metastasis, referred to as 90Y-microspheres radiation therapy or Y-90 radioembolisation. There will be 10 patients recruited. No further radioisotope administration will be performed (please refer to section 7 for full eligibility criteria). Primary Outcome - Introduce and optimise a Y90-PET-CT protocol post-therapy scan for patients undergoing 90Y-radioembolisation treatment. The Y90-PET-CT scan will be used primarily to confirm the radiotracer delivery to the target lesions. A Y90-PET-CT scan is believed to provide improved quality images compared to a Y90-bremsstrahlung-SPECT scan; hence, more accurate information on the success/failure of the therapy is expected to be obtained when using Y90-PET-CT images. Secondary Outcomes - Introduce in the department post-therapy dosimetry for Y90-microspheres radioembolisation using the optimised 90Y-PET-CT images obtained from the primary objective. This work will be done following published guidelines for post-therapy dosimetry and using pre-existing and bespoke commercial software applications that perform this task. The investigators expect the images resulting from 90Y-PET-CT will provide better information about the success or not of the infusion of the 90Y-microspheres into the target areas. 90Y-PET-CT will, in turn, provide a better understanding of post-therapy scans in our department, better management of 90Y-radioembolization patients and the development of improved radioembolization treatment-planning models in the future.

Criteria for eligibility:
Criteria:
Inclusion Criteria: - Patients undergoing liver treatment Y90-Microspheres therapy. - Male or female - Aged 18-85 years Exclusion Criteria: A participant will not be eligible for inclusion in this study if any of the following criteria apply: - History of, or suffers from, claustrophobia or participant feels unable to lie flat and still on their back for a period of up to 45 minutes in the scanner; o Priority will be given to their current clinical care scan Y-90-bremsstrahlung-SPECT - In the opinion of the clinical team, they are unlikely to comply with the study protocol and restrictions that it imposes (i.e. patient uncomfortable to withstand a double scan on the day); Female participants of childbearing potential must confirm they are not pregnant (a strict requisite before 90Y-therapy anyway).

Gender: All

Minimum age: 18 Years

Maximum age: 80 Years

Healthy volunteers: No

Locations:

Facility:
Name: The Christie NHS - Nuclear Medicine Department

Address:
City: Manchester
Zip: M204BX
Country: United Kingdom

Status: Recruiting

Contact:
Last name: Heather Williams, PhD

Phone: 01619187118
Email: heather.williams34@nhs.net

Contact backup:
Last name: Jose M Anton Rodriguez, PhD

Phone: 01619187118
Email: Jose.antonrodriguez@nhs.net

Start date: October 9, 2023

Completion date: May 2026

Lead sponsor:
Agency: The Christie NHS Foundation Trust
Agency class: Other

Source: The Christie NHS Foundation Trust

Record processing date: ClinicalTrials.gov processed this data on November 12, 2024

Source: ClinicalTrials.gov page: https://clinicaltrials.gov/ct2/show/NCT06123676