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Combined 18F-NaF/18F-FDG PET/MRI for Detection of Skeletal Metastases

Combined 18F-NaF/18F-FDG PET/MRI for Detection of Skeletal Metastases

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00375830
Enrollment
114
Registered
2006-09-13
Start date
2006-01-31
Completion date
2019-03-14
Last updated
2023-12-12

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

Conditions

Cancer

Brief summary

This clinical trial studies the use of sodium fluorine-18 (18F-NaF) plus fluorine-18 (18F) fluorodeoxyglucose (FDG) positron emission tomography (PET)/ whole body magnetic resonance imaging (WBMRI) to detect skeletal metastases in patients with stage III-IV breast cancer or stage II-IV prostate cancer.

Detailed description

Eligible participants had previously received a bone scan using the radiolabel 99mTc-methyl diphosphonate (t99-MDP) as part of their regular medical care. 18F-NaF and 18F-FDG are radioactive substances (radiolabels) that are absorbed by cancerous cells and allow for the cancer to be found using diagnostic procedures such as positron emission tomography (PET)/ whole body magnetic resonance imaging (WBMRI). PET/WBMRI is a combination procedure that combines the detailed PET images of areas inside the body from PET with the WBMRI scans, and may help find and diagnose skeletal metastases in patients with breast or prostate cancer. It is not yet known whether 18F-NaF/18F-FDG PET/WBMRI is better than standard imaging methods in detecting skeletal metastases. Eligible participants diagnosed with breast/prostate cancers and who have had 99mTc MDP bone scanning as part of their routine care are recruited and enrolled. Participants then receive an 18F-NaF/18F-FDG positron emission tomography (PET)/ WBMRI combination scan. The PET/MRI scans will be interpreted by 2 American Board Nuclear Medicine (ABNM)-certified physicians and 2 American Board of Radiology (ABR)-certified radiologists, all with significant clinical experience, who are blinded to the subjects' medical history and the results of other imaging modalities. The scans will be analyzed and compared against each other, with a consensus read will be obtained for each scan. Characterization of lesions as true-positive, true-negative, false-positive or false-negative will be done through a combination of clinical follow-up, imaging follow-up and/or histopathology findings. An overall diagnosis based on each scan will be determined on a 5-point scale (1=benign, 2=likely benign, 3=uncertain, 4=likely malignant, 5=malignant) to conduct a receiver operating characteristic (ROC) analysis. If the diagnosis is positive for metastases on any of the scans, the investigator will identify the number of lesions and locations of positivity, and record this information. Clinical is obtained at about 12 months after the initial scans.

Interventions

PROCEDUREBone scan

Scan to diagnose a number of bone conditions including cancer or metastasis

DRUG99mTc-methyl diphosphonate

Radiolabel for bone scan procedures

Scan to detect gamma rays emitted by a positron-emitting radioligand such as 18F

Radiolabel for positron emission tomography scan procedures

Scan to detect & analyze X-rays

DRUG18F-Sodium Fluoride (18F-NaF)

Radiolabel for CT and PET scans, & as a contrast agent for MRI scans.

PROCEDUREWhole Body Magnetic Resonance Imaging (WB-MRI) scan

Whole Body Magnetic Resonance Imaging (WB-MRI) scan: Scan that uses strong magnetic fields & radio waves to generate images of the organs in the body.

A gadolinium-based contrast agent for MRI

A gadolinium-based contrast agent for MRI

DRUGGadobutrol

A gadolinium-based contrast agent for MRI

Sponsors

Stanford University
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

All patients were enrolled after receiving a regular medical care bone scan using the radiolabel 99mTc-methyl diphosphonate (t99-MDP). INCLUSION CRITERIA * ≥ 18 years old at the time of the drug administration * ≥ Stage 3 breast cancer OR ≥ stage 2 prostate cancer OR prostate-specific antigen (PSA) \> 10 micrograms/L OR recurrent breast or prostate cancer * Capable of complying with study procedures * Able to remain still for duration of imaging procedure (about one hour) * Written informed consent

Exclusion criteria

* Pregnant or nursing * Metallic implants that contraindicate MRI * Renal function impairment that contraindicates MRI

Design outcomes

Primary

MeasureTime frameDescription
Cohort 1 - NaF PET/CT vs 99mTc-MDP Bone Scintigraphy30 daysThe medical value of 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) vs 99mTc-methylene diphosphonate (MDP) bone scintigraphy was assessed on the basis of the radiation oncologist's medical assessment of image quality and detected extent of disease, for each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom the medical value of the image was superior for 18F-NaF vs 99mTc-MDP bone scintigraphy (18F-NaF \> 99mTc-MDP), the same between both scans (18F-NaF = 99mTc-MDP), or inferior for 18F-NaF vs 99mTc-MDP bone scintigraphy (18F-NaF \< 99mTc-MDP).

Secondary

MeasureTime frameDescription
Cohort 1 - Whole-body MRI vs 18F-NaF PET/CT30 daysThe medical value of whole body magnetic imaging resonance (WB-MRI) vs 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of which scan detected the greater number of tumor lesions in each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom lesions detected by WB MRI was \> 18F-NaF PET/CT; equal to 18F-NaF PET/CT; or \< 18F-NaF PET/CT. The outcome result is represented as a number without dispersion. 8 analyzed 5 2 1
Cohort 1 - Whole-body MRI vs 18F-FDG PET/CT30 daysThe medical value of whole body magnetic imaging resonance (WB-MRI) vs 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of which scan detected the greater number of tumor lesions in each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom lesions detected by WB MRI was \> 18F-FDG PET/CT; equal to to 18F-FDG PET/CT; or \< 18F-FDG PET/CT. The outcome result is represented as a number without dispersion.
Cohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CT30 daysThe ability of 18F-sodium fluoride (NaF) and 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) to detect osseous (skeletal) metastases was assessed. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of Cohort 1 participants for whom osseous metastases were detected, a number without dispersion.
Cohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal Lesions30 daysSensitivity; positive predictive value (PPV); and accuracy for the detection of extraskeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). * Sensitivity is a percentage that defines the proportion of true positive participants with the disease in a total group of participants. * PPV is the probability that participants with a positive screening test truly have the disease. * Accuracy is the proportion of true results (both true positives and true negatives) among the total number of cases examined. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity, PPV, and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.
Cohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal Lesions30 daysSensitivity and accuracy for the detection of skeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.
Cohort 1 - 18F-NaF PET/CT vs 18F-FDG PET/CT30 daysThe medical value of 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) vs 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of the radiation oncologist's medical assessment of image quality and detected extent of disease, for each participant diagnosed with osseous (skeletal) metastases. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom the medical value of the image was superior for 18-NaF PET/CT compared to 18F-FDG PET/CT, the same between both scans, or inferior for 18-NaF PET/CT compared to 18F-FDG PET/CT. The outcome result is represented as a number without dispersion.
Cohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI30 daysOverall sensitivity and accuracy for the detection of tumor lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.
Cohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone Scintigraphy30 daysOverall sensitivity and accuracy for the detection of tumor lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for 99mTc-methylene diphosphonate (MDP) bone scintigraphy. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.
Cohort 3 - Skeletal Lesions Identified by 99mTc MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI30 daysParticipants in Cohort 3 received 99mTc-methylene diphosphonate (MDP) whole-body bone scintigraphy (WBBS) and 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / magnetic imaging resonance (PET/MRI) scans. On the basis of the scans, participants with skeletal lesions were identified. The outcome is reported as the number of Cohort 3 participants for whom skeletal lesions were identified by each scan methodology, a number without dispersion.
Cohort 3 - Total Skeletal Lesions Identified, Tc-99m MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI30 daysParticipants in Cohort 3 received 99mTc-methylene diphosphonate (MDP) whole-body bone scintigraphy (WBBS) and 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / magnetic imaging resonance (PET/MRI) scans. On the basis of the scans, the total number skeletal lesions identified in the participants was determined. The outcome is reported as the total number skeletal lesions identified by each scan methodology, a number without dispersion.
Cohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal Lesions30 daysSensitivity and accuracy for the detection of skeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for 99mTc-methylene diphosphonate (MDP) bone scintigraphy. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Countries

United States

Participant flow

Participants by arm

ArmCount
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET Scans
Preliminary pilot assessment to confirm feasibility & improved diagnostic accuracy of the combined 18F-NaF CT & 18F-FDG PET scan procedures, as compared to the regular medical care procedure, 99mTc MDP bone scans. Bone scan: Scan to diagnose a number of bone conditions including cancer or metastasis 99mTc-methyl diphosphonate: Radiolabel for bone scan procedures Positron Emission Tomography (PET) scan: Scan to detect gamma rays emitted by a positron-emitting radioligand such as 18F 18F-Fludeoxyglucose (18F-FDG): Radiolabel for positron emission tomography scan procedures Computed Tomography (CT) scan: Scan to detect & analyze X-rays 18F-Sodium Fluoride (18F-NaF): Radiolabel for CT and PET scans, & as a contrast agent for MRI scans. Gadopentetate dimeglumine: A gadolinium-based contrast agent for MRI
10
Cohort 2 WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET Scans
Assessment to define the accuracy of the combined 18F-NaF CT & 18F-FDG PET/CT scan procedures compared to 99mTc MDP bone scan. Bone scan: Scan to diagnose a number of bone conditions including cancer or metastasis 99mTc-methyl diphosphonate: Radiolabel for bone scan procedures Positron Emission Tomography (PET) scan: Scan to detect gamma rays emitted by a positron-emitting radioligand such as 18F 18F-Fludeoxyglucose (18F-FDG): Radiolabel for positron emission tomography scan procedures Computed Tomography (CT) scan: Scan to detect & analyze X-rays 18F-Sodium Fluoride (18F-NaF): Radiolabel for CT and PET scans, & as a contrast agent for MRI scans. Whole Body Magnetic Resonance Imaging (WB-MRI) scan: Whole Body Magnetic Resonance Imaging (WB-MRI) scan: Scan that uses strong magnetic fields & radio waves to generate images of the organs in the body. Gadofosveset: A gadolinium-based contrast agent for MRI Gadobutrol: A gadolinium-based contrast agent for MRI
30
Cohort 3 Combined 18F-NaF / 18F-FDG PET/WB-MRI Scan
Assessment to define the utility of 18F-NaF & 18F-FDG as the radiolabels in a single combined PET / WB-MRI procedure. Bone scan: Scan to diagnose a number of bone conditions including cancer or metastasis 99mTc-methyl diphosphonate: Radiolabel for bone scan procedures Positron Emission Tomography (PET) scan: Scan to detect gamma rays emitted by a positron-emitting radioligand such as 18F 18F-Fludeoxyglucose (18F-FDG): Radiolabel for positron emission tomography scan procedures 18F-Sodium Fluoride (18F-NaF): Radiolabel for CT and PET scans, & as a contrast agent for MRI scans. Whole Body Magnetic Resonance Imaging (WB-MRI) scan: Whole Body Magnetic Resonance Imaging (WB-MRI) scan: Scan that uses strong magnetic fields & radio waves to generate images of the organs in the body. Gadofosveset: A gadolinium-based contrast agent for MRI Gadobutrol: A gadolinium-based contrast agent for MRI
74
Total114

Baseline characteristics

CharacteristicCohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 3 Combined 18F-NaF / 18F-FDG PET/WB-MRI ScanTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
5 Participants14 Participants32 Participants51 Participants
Age, Categorical
Between 18 and 65 years
5 Participants16 Participants42 Participants63 Participants
Age, Continuous62.5 years
STANDARD_DEVIATION 11.8
61.6 years
STANDARD_DEVIATION 13
62.9 years
STANDARD_DEVIATION 11.2
62.8 years
STANDARD_DEVIATION 11.5
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants6 Participants7 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants28 Participants66 Participants101 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
3 Participants1 Participants2 Participants6 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants5 Participants14 Participants21 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants2 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants6 Participants6 Participants15 Participants
Race (NIH/OMB)
White
5 Participants18 Participants52 Participants75 Participants
Region of Enrollment
United States
10 participants30 participants74 participants114 participants
Sex: Female, Male
Female
5 Participants15 Participants23 Participants43 Participants
Sex: Female, Male
Male
5 Participants15 Participants51 Participants71 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 100 / 300 / 74
other
Total, other adverse events
0 / 100 / 300 / 74
serious
Total, serious adverse events
0 / 100 / 300 / 74

Outcome results

Primary

Cohort 1 - NaF PET/CT vs 99mTc-MDP Bone Scintigraphy

The medical value of 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) vs 99mTc-methylene diphosphonate (MDP) bone scintigraphy was assessed on the basis of the radiation oncologist's medical assessment of image quality and detected extent of disease, for each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom the medical value of the image was superior for 18F-NaF vs 99mTc-MDP bone scintigraphy (18F-NaF \> 99mTc-MDP), the same between both scans (18F-NaF = 99mTc-MDP), or inferior for 18F-NaF vs 99mTc-MDP bone scintigraphy (18F-NaF \< 99mTc-MDP).

Time frame: 30 days

Population: This assessment was conducted only for Cohort 1 as part of the pilot phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - NaF PET/CT vs 99mTc-MDP Bone Scintigraphy18F-NaF < 99mTc-MDP0 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - NaF PET/CT vs 99mTc-MDP Bone Scintigraphy18F-NaF > 99mTc-MDP10 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - NaF PET/CT vs 99mTc-MDP Bone Scintigraphy18F-NaF = 99mTc-MDP0 Participants
Secondary

Cohort 1 - 18F-NaF PET/CT vs 18F-FDG PET/CT

The medical value of 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) vs 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of the radiation oncologist's medical assessment of image quality and detected extent of disease, for each participant diagnosed with osseous (skeletal) metastases. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom the medical value of the image was superior for 18-NaF PET/CT compared to 18F-FDG PET/CT, the same between both scans, or inferior for 18-NaF PET/CT compared to 18F-FDG PET/CT. The outcome result is represented as a number without dispersion.

Time frame: 30 days

Population: This assessment was conducted only for Cohort 1, and only for participants with skeletal metastases, as part of the pilot phase of the study.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - 18F-NaF PET/CT vs 18F-FDG PET/CT18F-NaF > 18F-FDG3 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - 18F-NaF PET/CT vs 18F-FDG PET/CT18F-NaF = 18F-FDG0 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - 18F-NaF PET/CT vs 18F-FDG PET/CT18F-NaF < 18F-FDG0 Participants
Secondary

Cohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CT

The ability of 18F-sodium fluoride (NaF) and 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) to detect osseous (skeletal) metastases was assessed. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of Cohort 1 participants for whom osseous metastases were detected, a number without dispersion.

Time frame: 30 days

Population: This assessment was conducted only for Cohort 1 as part of the pilot phase of the study. Only participants with both medically-evaluable scans are included.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CTParticipants with lesions detected by 18F-NaF9 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CTParticipants with lesions not detected by 18F-NaF0 Participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CTParticipants with lesions detected by 18F-NaF6 Participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 1 - Detection of Osseous (Skeletal) Metastases by 18F-NaF and 18F-FDG PET/CTParticipants with lesions not detected by 18F-NaF3 Participants
Secondary

Cohort 1 - Whole-body MRI vs 18F-FDG PET/CT

The medical value of whole body magnetic imaging resonance (WB-MRI) vs 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of which scan detected the greater number of tumor lesions in each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom lesions detected by WB MRI was \> 18F-FDG PET/CT; equal to to 18F-FDG PET/CT; or \< 18F-FDG PET/CT. The outcome result is represented as a number without dispersion.

Time frame: 30 days

Population: This assessment was conducted only for Cohort 1 as part of the pilot phase of the study. Only participants with medically-evaluable results for both scans are included.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-FDG PET/CTWB MRI > 18F-FDG PET/CT0 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-FDG PET/CTWB MRI = 18F-FDG PET/CT6 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-FDG PET/CTWB MRI < 18F-FDG PET/CT3 Participants
Secondary

Cohort 1 - Whole-body MRI vs 18F-NaF PET/CT

The medical value of whole body magnetic imaging resonance (WB-MRI) vs 18F-sodium fluoride (NaF) positron emission tomography / computed tomography (PET/CT) was assessed on the basis of which scan detected the greater number of tumor lesions in each participant. Per protocol, the data were collected and the outcome is reported for Cohort 1 only. The outcome is reported as the number of participants for whom lesions detected by WB MRI was \> 18F-NaF PET/CT; equal to 18F-NaF PET/CT; or \< 18F-NaF PET/CT. The outcome result is represented as a number without dispersion. 8 analyzed 5 2 1

Time frame: 30 days

Population: This assessment was conducted only for Cohort 1 as part of the pilot phase of the study. Only participants with medically-evaluable results for both scans are included.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-NaF PET/CTWB MRI > 18F NaF PET/CT5 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-NaF PET/CTWB MRI = 18F NaF PET/CT2 Participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 1 - Whole-body MRI vs 18F-NaF PET/CTWB MRI < 18F NaF PET/CT1 Participants
Secondary

Cohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal Lesions

Sensitivity; positive predictive value (PPV); and accuracy for the detection of extraskeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). * Sensitivity is a percentage that defines the proportion of true positive participants with the disease in a total group of participants. * PPV is the probability that participants with a positive screening test truly have the disease. * Accuracy is the proportion of true results (both true positives and true negatives) among the total number of cases examined. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity, PPV, and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Time frame: 30 days

Population: For this outcome, participants in Cohort 2 were analyzed with 2 distinct scanning procedures, ie, 18F-NaF/18F-FDG PET/CT scan and whole-body MRI scan.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsSensitivity92.9 percentage of particpants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsPositive predictive value81.3 percentage of particpants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsAccuracy76.5 percentage of particpants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsSensitivity92.9 percentage of particpants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsPositive predictive value86.7 percentage of particpants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG PET/CT vs Whole-body MRI for Detection of Extraskeletal LesionsAccuracy82.4 percentage of particpants
Secondary

Cohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal Lesions

Sensitivity and accuracy for the detection of skeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for 99mTc-methylene diphosphonate (MDP) bone scintigraphy. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Time frame: 30 days

ArmMeasureGroupValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal LesionsSensitivity96.2 percentage of participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal LesionsAccuracy89.8 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal LesionsSensitivity64.6 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG vs 99mTc-MDP Bone Scintigraphy for Detection of Skeletal LesionsAccuracy65.9 percentage of participants
Secondary

Cohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal Lesions

Sensitivity and accuracy for the detection of skeletal lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Time frame: 30 days

Population: For this outcome, participants in Cohort 2 were analyzed with 2 distinct scanning procedures, ie, 18F-NaF/18F-FDG PET/CT scan and whole-body MRI scan.

ArmMeasureGroupValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal LesionsSensitivity96.2 percentage of particpants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal LesionsAccuracy89.8 percentage of particpants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal LesionsSensitivity81.4 percentage of particpants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - 18F-NaF/18F-FDG vs Whole-body MRI for Detection of Skeletal LesionsAccuracy74.7 percentage of particpants
Secondary

Cohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI

Overall sensitivity and accuracy for the detection of tumor lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for whole body magnetic imaging resonance (WB-MRI). Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Time frame: 30 days

ArmMeasureGroupValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRISensitivity95.7 percentage of participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRIAccuracy87.6 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRISensitivity83.3 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRIAccuracy76.0 percentage of participants
Secondary

Cohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone Scintigraphy

Overall sensitivity and accuracy for the detection of tumor lesions was assessed for 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / computed tomography (PET/CT) and for 99mTc-methylene diphosphonate (MDP) bone scintigraphy. Per protocol, the data were collected and the outcome is reported for Cohort 2 only. Sensitivity and accuracy are reported as a percentage, a number without dispersion. Higher numbers represent better detection.

Time frame: 30 days

ArmMeasureGroupValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone ScintigraphySensitivity95.7 percentage of participants
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone ScintigraphyAccuracy87.6 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone ScintigraphySensitivity91.6 percentage of participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 2 - Overall Sensitivity and Accuracy for 18F-NaF/18F-FDG vs Whole-body MRI/99mTc-MDP Bone ScintigraphyAccuracy83.0 percentage of participants
Secondary

Cohort 3 - Skeletal Lesions Identified by 99mTc MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI

Participants in Cohort 3 received 99mTc-methylene diphosphonate (MDP) whole-body bone scintigraphy (WBBS) and 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / magnetic imaging resonance (PET/MRI) scans. On the basis of the scans, participants with skeletal lesions were identified. The outcome is reported as the number of Cohort 3 participants for whom skeletal lesions were identified by each scan methodology, a number without dispersion.

Time frame: 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 3 - Skeletal Lesions Identified by 99mTc MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI37 Participants
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 3 - Skeletal Lesions Identified by 99mTc MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI45 Participants
Secondary

Cohort 3 - Total Skeletal Lesions Identified, Tc-99m MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI

Participants in Cohort 3 received 99mTc-methylene diphosphonate (MDP) whole-body bone scintigraphy (WBBS) and 18F-sodium fluoride (NaF) / 18F-fluorodeoxyglucose (FDG) positron emission tomography / magnetic imaging resonance (PET/MRI) scans. On the basis of the scans, the total number skeletal lesions identified in the participants was determined. The outcome is reported as the total number skeletal lesions identified by each scan methodology, a number without dispersion.

Time frame: 30 days

ArmMeasureValue (NUMBER)
Cohort 1 Pilot-WB-MRI & Combined 18F-NaF-CT/18F-FDG-PET ScansCohort 3 - Total Skeletal Lesions Identified, Tc-99m MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI81 lesions
Cohort 1 Pilot - 18F-FDG-PET ScanCohort 3 - Total Skeletal Lesions Identified, Tc-99m MDP WBBS vs 18F-NaF / 18F-FDG PET/MRI140 lesions

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