Trial Outcomes & Findings for Gallium-68 PSMA-11 PET in Intermediate to High-risk Preprostatectomy Patients (NCT NCT02919111)
NCT ID: NCT02919111
Last Updated: 2020-12-10
Results Overview
Sensitivity is defined as the ratio of the proportion of the patients who have the condition of interest and whose test results are positive over the number who have the disease. Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true-negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives. Follow-up scans for up to one year can be used in analysis
COMPLETED
PHASE2/PHASE3
299 participants
Up to 1 year
2020-12-10
Participant Flow
Participant milestones
| Measure |
Ga-68 Labeled PSMA-11 PET
PSMA Positron Emission Tomography (PET) imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
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|---|---|
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Overall Study
STARTED
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299
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Overall Study
COMPLETED
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299
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Overall Study
NOT COMPLETED
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0
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Reasons for withdrawal
Withdrawal data not reported
Baseline Characteristics
Gallium-68 PSMA-11 PET in Intermediate to High-risk Preprostatectomy Patients
Baseline characteristics by cohort
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
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Sex: Female, Male
Male
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299 Participants
n=5 Participants
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Age, Customized
40-49 years old
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3 Participants
n=5 Participants
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Ethnicity (NIH/OMB)
Hispanic or Latino
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11 Participants
n=5 Participants
|
|
Ethnicity (NIH/OMB)
Not Hispanic or Latino
|
262 Participants
n=5 Participants
|
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Age, Customized
50-59 years old
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25 Participants
n=5 Participants
|
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Age, Customized
60-69 years old
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126 Participants
n=5 Participants
|
|
Age, Customized
70-79 years old
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124 Participants
n=5 Participants
|
|
Age, Customized
80-89 years old
|
19 Participants
n=5 Participants
|
|
Age, Customized
90-99 years old
|
2 Participants
n=5 Participants
|
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Sex: Female, Male
Female
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0 Participants
n=5 Participants
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Ethnicity (NIH/OMB)
Unknown or Not Reported
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26 Participants
n=5 Participants
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Race (NIH/OMB)
American Indian or Alaska Native
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3 Participants
n=5 Participants
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Race (NIH/OMB)
Asian
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19 Participants
n=5 Participants
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Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
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3 Participants
n=5 Participants
|
|
Race (NIH/OMB)
Black or African American
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8 Participants
n=5 Participants
|
|
Race (NIH/OMB)
White
|
218 Participants
n=5 Participants
|
|
Race (NIH/OMB)
More than one race
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1 Participants
n=5 Participants
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Race (NIH/OMB)
Unknown or Not Reported
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47 Participants
n=5 Participants
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Region of Enrollment
United States
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299 participants
n=5 Participants
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PRIMARY outcome
Timeframe: Up to 1 yearSensitivity is defined as the ratio of the proportion of the patients who have the condition of interest and whose test results are positive over the number who have the disease. Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true-negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives. Follow-up scans for up to one year can be used in analysis
Outcome measures
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
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|---|---|
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Sensitivity of PSMA PET for the Detection of Regional Nodal Metastases Compared to Pathology at Radical Prostatectomy
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.43 proportion of participants
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PRIMARY outcome
Timeframe: Up to 1 yearSpecificity is defined as the number of non-diseased participants correctly classified divided by all non-diseased individuals. Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true-negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives. Follow-up scans for up to one year can be used in analysis
Outcome measures
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
|
|---|---|
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Specificity of of PSMA PET for the Detection of Regional Nodal Metastases Compared to Pathology at Radical Prostatectomy
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.94 proportion of participants
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PRIMARY outcome
Timeframe: Up to 1 yearPPV is the proportion of patients with positive test who actually have the disease. Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true-negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives. Follow-up scans for up to one year can be used in analysis
Outcome measures
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
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|---|---|
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Positive Predictive Value (PPV) of of PSMA PET for the Detection of Regional Nodal Metastases Compared to Pathology at Radical Prostatectomy
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.64 proportion of true positives
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PRIMARY outcome
Timeframe: Up to 1 yearNPV is the ratio of participants truly diagnosed as negative to all those who had negative test results. Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives. Follow-up scans for obtained up to one year after study scan be used in analysis.
Outcome measures
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
|
|---|---|
|
Negative Predictive Value (NPV) of PSMA PET for the Detection of Regional Nodal Metastases Compared to Pathology at Radical Prostatectomy
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.87 proportion of true negatives
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SECONDARY outcome
Timeframe: Up to 3 daysAll grade 3 and above adverse events were recorded using the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v4.0. The Investigator assigns grade, attribution of the possible association of the event with use of the investigational drug. The safety parameters include spontaneous reports of adverse events reported to the investigator by patients
Outcome measures
| Measure |
Ga-68 Labeled PSMA-11 PET
n=299 Participants
PSMA PET imaging: Patients will receive Ga-68 labeled PSMA-11 PET and then undergo PET/CT or PET/MRI approximately 55-70 minutes later.
Ga-68 labeled PSMA-11 PET: Patients will be imaged using Ga-68 labeled PSMA-11 PET to determine if the presence of metastatic disease. Prostate Specific Membrane Antigen (PSMA) is a protein expressed on prostate cancer cells that can be imaged using small molecules that target this protocol.
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|---|---|
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Number of Participants With Grade 3 Treatment-related Adverse Events
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0 Participants
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SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of extra-pelvic nodal metastases was not collected
Gallium 68 labeled PSMA-11 (68Ga-PSMA-11) positive lymph nodes will be considered for detection of extra-pelvic nodal metastases and assessed by change in size. Participants who if on follow-up imaging within 3-12 months, have lymph nodes which decrease by more than 30% or increase by more than 20% in short axis diameter (with a minimum of 3 mm in change in size) or with solitary lymph node regions show a decrease of Prostate-specific antigen (PSA) by \>50% after targeted treatment and the lymph nodes do not change in size (less than 30% decrease or less than 20% increase in short axis diameter) will be counted as true positives. If on follow-up imaging, sites of initial 68Ga-PSMA-11 positive lymph node lesions \< 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive lymph node lesions that do not meet criteria for above false positive or true positive will be counted as false positives.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of extra-pelvic nodal metastases was not collected
68Ga-PSMA-11 positive lymph nodes will be considered for detection of extra-pelvic nodal metastases and assessed by change in size. Participants who if on follow-up imaging within 3-12 months, have lymph nodes which decrease by more than 30% or increase by more than 20% in short axis diameter (with a minimum of 3 mm in change in size) or with solitary lymph node regions show a decrease of PSA by \>50% after targeted treatment and the lymph nodes do not change in size (less than 30% decrease or less than 20% increase in short axis diameter) will be counted as true positives. If on follow-up imaging, sites of initial 68Ga-PSMA-11 positive lymph node lesions \< 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive lymph node lesions that do not meet criteria for above false positive or true positive will be counted as false positives.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of extra-pelvic nodal metastases was not collected
68Ga-PSMA-11 positive lymph nodes will be considered for detection of extra-pelvic nodal metastases and assessed by change in size. Participants who if on follow-up imaging within 3-12 months, have lymph nodes which decrease by more than 30% or increase by more than 20% in short axis diameter (with a minimum of 3 mm in change in size) or with solitary lymph node regions show a decrease of PSA by \>50% after targeted treatment and the lymph nodes do not change in size (less than 30% decrease or less than 20% increase in short axis diameter) will be counted as true positives. If on follow-up imaging, sites of initial 68Ga-PSMA-11 positive lymph node lesions \< 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive lymph node lesions that do not meet criteria for above false positive or true positive will be counted as false positives.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of extra-pelvic nodal metastases was not collected
68Ga-PSMA-11 positive lymph nodes will be considered for detection of extra-pelvic nodal metastases and assessed by change in size. Participants who if on follow-up imaging within 3-12 months, have lymph nodes which decrease by more than 30% or increase by more than 20% in short axis diameter (with a minimum of 3 mm in change in size) or with solitary lymph node regions show a decrease of PSA by \>50% after targeted treatment and the lymph nodes do not change in size (less than 30% decrease or less than 20% increase in short axis diameter) will be counted as true positives. If on follow-up imaging, sites of initial 68Ga-PSMA-11 positive lymph node lesions \< 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive lymph node lesions that do not meet criteria for above false positive or true positive will be counted as false positives.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of visceral metastases was not collected
Visceral lesions (non-lymph node soft tissue or organ) will be assessed by change in size. 68Ga-PSMA-11 positive visceral lesions will be considered True positive if on follow-up imaging within 3-12 months, visceral lesions seen on imaging decrease by 30% (for patients undergoing systemic treatment of focal therapy at this site) or increase by 20% in largest diameter or if participants with solitary visceral metastasis show a decrease of PSA by greater than 50% after targeted treatment and lesions do not change in size (less than 30% decrease or 20% increase in largest diameter) and False positive if on follow-up imaging within 3-12 months, sites of initial 68Ga-PSMA-11 positive visceral lesions seen on CT or MRI decrease by more than 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive visceral lesions do not meet the criteria for above false positive or true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of visceral metastases was not collected
Visceral lesions (non-lymph node soft tissue or organ) will be assessed by change in size. 68Ga-PSMA-11 positive visceral lesions will be considered True positive if on follow-up imaging within 3-12 months, visceral lesions seen on imaging decrease by 30% (for patients undergoing systemic treatment of focal therapy at this site) or increase by 20% in largest diameter or if participants with solitary visceral metastasis show a decrease of PSA by greater than 50% after targeted treatment and lesions do not change in size (less than 30% decrease or 20% increase in largest diameter) and False positive if on follow-up imaging within 3-12 months, sites of initial 68Ga-PSMA-11 positive visceral lesions seen on CT or MRI decrease by more than 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive visceral lesions do not meet the criteria for above false positive or true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of visceral metastases was not collected
Visceral lesions (non-lymph node soft tissue or organ) will be assessed by change in size. 68Ga-PSMA-11 positive visceral lesions will be considered True positive if on follow-up imaging within 3-12 months, visceral lesions seen on imaging decrease by 30% (for patients undergoing systemic treatment of focal therapy at this site) or increase by 20% in largest diameter or if participants with solitary visceral metastasis show a decrease of PSA by greater than 50% after targeted treatment and lesions do not change in size (less than 30% decrease or 20% increase in largest diameter) and False positive if on follow-up imaging within 3-12 months, sites of initial 68Ga-PSMA-11 positive visceral lesions seen on CT or MRI decrease by more than 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive visceral lesions do not meet the criteria for above false positive or true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of visceral metastases was not collected
Visceral lesions (non-lymph node soft tissue or organ) will be assessed by change in size. 68Ga-PSMA-11 positive visceral lesions will be considered True positive if on follow-up imaging within 3-12 months, visceral lesions seen on imaging decrease by 30% (for patients undergoing systemic treatment of focal therapy at this site) or increase by 20% in largest diameter or if participants with solitary visceral metastasis show a decrease of PSA by greater than 50% after targeted treatment and lesions do not change in size (less than 30% decrease or 20% increase in largest diameter) and False positive if on follow-up imaging within 3-12 months, sites of initial 68Ga-PSMA-11 positive visceral lesions seen on CT or MRI decrease by more than 30% without systemic therapy or focal therapy at this site or if 68Ga-PSMA-11 positive visceral lesions do not meet the criteria for above false positive or true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of osseous metastases was not collected
68Ga-PSMA-11 positive bone lesions will be considered a True positive if there was a corresponding positive sclerotic lesion on the CT portion of the 68Ga-PSMA-11 PET in the same location as the PSMA uptake, If there is focal uptake seen in the same location as the PSMA uptake on the baseline bone scan performed within one month of 68Ga-PSMA-11 PET, if there is a lesion noted in the same location as the PSMA uptake on the initial MRI performed within one month of 68Ga-PSMA-11 PET, if within 12 months follow-up CT demonstrates development of sclerosis in the same location as the PSMA uptake, if within 12 months follow-up MRI demonstrates a new bone lesion in the same location as the PSMA uptake, if within 12 months follow-up bone scan demonstrates new focal uptake in the same location as the PSMA uptake and a False positive if 68Ga-PSMA-11 positive bone lesions do not meet the criteria for true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of osseous metastases was not collected
68Ga-PSMA-11 positive bone lesions will be considered a True positive if there was a corresponding positive sclerotic lesion on the CT portion of the 68Ga-PSMA-11 PET in the same location as the PSMA uptake, If there is focal uptake seen in the same location as the PSMA uptake on the baseline bone scan performed within one month of 68Ga-PSMA-11 PET, if there is a lesion noted in the same location as the PSMA uptake on the initial MRI performed within one month of 68Ga-PSMA-11 PET, if within 12 months follow-up CT demonstrates development of sclerosis in the same location as the PSMA uptake, if within 12 months follow-up MRI demonstrates a new bone lesion in the same location as the PSMA uptake, if within 12 months follow-up bone scan demonstrates new focal uptake in the same location as the PSMA uptake and a False positive if 68Ga-PSMA-11 positive bone lesions do not meet the criteria for true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of osseous metastases was not collected
68Ga-PSMA-11 positive bone lesions will be considered a True positive if there was a corresponding positive sclerotic lesion on the CT portion of the 68Ga-PSMA-11 PET in the same location as the PSMA uptake, If there is focal uptake seen in the same location as the PSMA uptake on the baseline bone scan performed within one month of 68Ga-PSMA-11 PET, if there is a lesion noted in the same location as the PSMA uptake on the initial MRI performed within one month of 68Ga-PSMA-11 PET, if within 12 months follow-up CT demonstrates development of sclerosis in the same location as the PSMA uptake, if within 12 months follow-up MRI demonstrates a new bone lesion in the same location as the PSMA uptake, if within 12 months follow-up bone scan demonstrates new focal uptake in the same location as the PSMA uptake and a False positive if 68Ga-PSMA-11 positive bone lesions do not meet the criteria for true positive findings.
Outcome measures
Outcome data not reported
SECONDARY outcome
Timeframe: Up to 1 yearPopulation: Data on the detection of osseous metastases was not collected
68Ga-PSMA-11 positive bone lesions will be considered a True positive if there was a corresponding positive sclerotic lesion on the CT portion of the 68Ga-PSMA-11 PET in the same location as the PSMA uptake, If there is focal uptake seen in the same location as the PSMA uptake on the baseline bone scan performed within one month of 68Ga-PSMA-11 PET, if there is a lesion noted in the same location as the PSMA uptake on the initial MRI performed within one month of 68Ga-PSMA-11 PET, if within 12 months follow-up CT demonstrates development of sclerosis in the same location as the PSMA uptake, if within 12 months follow-up MRI demonstrates a new bone lesion in the same location as the PSMA uptake, if within 12 months follow-up bone scan demonstrates new focal uptake in the same location as the PSMA uptake and a False positive if 68Ga-PSMA-11 positive bone lesions do not meet the criteria for true positive findings.
Outcome measures
Outcome data not reported
Adverse Events
Ga-68 Labeled PSMA-11 PET
Serious adverse events
Adverse event data not reported
Other adverse events
Adverse event data not reported
Additional Information
Dr. Thomas Hope, MD
University of California, San Francisco
Results disclosure agreements
- Principal investigator is a sponsor employee
- Publication restrictions are in place