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Comparison of Yttrium-90 Absorbed Doses Using PET/CT Versus PET/MR Imaging for Hepatic Malignancies

Comparison of Yttrium-90 Absorbed Doses Using PET/CT Versus PET/MR Imaging in Patients Undergoing Selective Internal Radiation Therapy for Hepatic Malignancies

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04332419
Enrollment
11
Registered
2020-04-02
Start date
2020-03-03
Completion date
2020-09-21
Last updated
2022-06-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatic Malignancies

Brief summary

The purpose of this study is to compare the results of positron emission tomography/computer tomography (PET/CT) to positron emission tomography/magnetic resonance imaging (PET/MRI) to help determine any added advantage of one over the other in relation to a tumor which might assist in further management plans.

Detailed description

Participants in this study will undergo PET/CT (standard imaging) and PET/MR (additional imaging), within 6 hours after SIRT with Y-90 for palliative treatment of the liver malignancy. Patients will be randomized to receive either of the imaging modalities first, based on the availability of the imaging device, and less than 1 hour apart. Upon acquirement and construction of PET/CT and PET/MR images, a software (MIM SurePlan LiverY90) would be utilized for semi-automatic determination of the liver/tumor contours and calculation of the Y-90 absorbed doses (Gy) in the regions of interest (including within tumor and background liver outlines) using the Local Deposition Method. The primary objective of this study is to assess the agreement between post-Y-90 RE absorbed doses (Gy) in the liver tumor tissues based on PET/CT versus PET/MR imaging. This would permit the comparison of Y-90 tumor absorbed doses, acquired from PET/MR, with the current standard of care PET/CT imaging to verify the data consistency and to validate its application for the prediction of tumor response to treatment. The secondary objective of this study is to assess the agreement between post-Y-90 RE absorbed doses (Gy) in the background liver tissues (surrounding tumors), based on PET/CT versus PET/MR imaging. This would permit the comparison of Y-90 background liver absorbed doses, acquired from PET/MR, with the current standard of care PET/CT imaging to verify the data consistency and to validate its application for the prediction of dose toxicity.

Interventions

DEVICEPET/CT

Standard Imaging

DEVICEPET/MR

Additional Imaging

RADIATIONSIRT with Y-90

SIRT with Y-90 for palliative treatment of the liver malignancy.

Sponsors

Case Comprehensive Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* The patient has a liver malignancy and is scheduled for SIRT with Y-90; AND * The patient is an adult, self-competent, and able to provide informed consent to participate in the study

Exclusion criteria

* The patient loses competence, has a condition that questions their ability to provide informed consent independently (e.g. cannot communicate in English), or withdraws consent to participate within any time in the study period; OR * The patient is not eligible to undergo MRI due to the presence of metal devices or implants in their body; OR * Both imaging modalities cannot take place within 6 hours after Y-90 RE; OR * Both imaging modalities cannot take place within 1 hour apart from each other

Design outcomes

Primary

MeasureTime frameDescription
Reproducibility Coefficient (RDC) Between the Two Imaging Modalities in Liver Tumor TissuesPost-op day 0, 1 hour apartRDC between the two imaging modalities for post-Y-90 Radioembolization (RE) absorbed doses (Gy) in the liver tumor tissues The RDC is the minimum difference between the two measurements that can be considered a true difference, with 95% confidence.

Secondary

MeasureTime frameDescription
RDC Between the Two Imaging Modalities in Background Liver TissuesPost-op day 0, 1 hour apartRDC between the two imaging modalities for post-Y-90 RE absorbed doses (Gy) in the background liver tissues The RDC is the minimum difference between the two measurements that can be considered a true difference, with 95% confidence.

Countries

United States

Participant flow

Participants by arm

ArmCount
PET/CT & PET/MR
One-time PET/MR imaging in addition to the standard PET/CT imaging, both performed on the same day of the treatment procedure (Selective Internal Radiation Therapy Y-90 RE). Participants will be randomized to receive either of the imaging modalities first, based on the availability of the imaging device, and less than 1 hour apart. PET/CT: Standard Imaging PET/MR: Additional Imaging SIRT with Y-90: SIRT with Y-90 for palliative treatment of the liver malignancy.
11
Total11

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicPET/CT & PET/MR
Age, Continuous67.8 Years
STANDARD_DEVIATION 10.7
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
10 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
1 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
9 Participants
Region of Enrollment
United States
11 participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
7 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 11
other
Total, other adverse events
0 / 11
serious
Total, serious adverse events
0 / 11

Outcome results

Primary

Reproducibility Coefficient (RDC) Between the Two Imaging Modalities in Liver Tumor Tissues

RDC between the two imaging modalities for post-Y-90 Radioembolization (RE) absorbed doses (Gy) in the liver tumor tissues The RDC is the minimum difference between the two measurements that can be considered a true difference, with 95% confidence.

Time frame: Post-op day 0, 1 hour apart

ArmMeasureValue (MEAN)
PET/CT & PET/MRReproducibility Coefficient (RDC) Between the Two Imaging Modalities in Liver Tumor Tissues16.9 percent difference
Secondary

RDC Between the Two Imaging Modalities in Background Liver Tissues

RDC between the two imaging modalities for post-Y-90 RE absorbed doses (Gy) in the background liver tissues The RDC is the minimum difference between the two measurements that can be considered a true difference, with 95% confidence.

Time frame: Post-op day 0, 1 hour apart

ArmMeasureValue (MEAN)
PET/CT & PET/MRRDC Between the Two Imaging Modalities in Background Liver Tissues25.8 percent difference

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026