Trial Outcomes & Findings for 18F-FLT-PET Imaging of the Brain in Patients With Metastatic Breast Cancer to the Brain Treated With Whole Brain Radiation Therapy With or Without Sorafenib: Comparison With MR Imaging of the Brain (NCT NCT01621906)

NCT ID: NCT01621906

Last Updated: 2022-09-09

Results Overview

Overall Response Rate is the proportion of participants who had a complete or partial response (Cohort 1)

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

17 participants

Primary outcome timeframe

1 year

Results posted on

2022-09-09

Participant Flow

Participant milestones

Participant milestones
Measure
Cohort 1
12-039 is a companion FLT-PET brain imaging study to 12-046. 10 participants from 12-046 were consented to 12-039. 10 other participants were approached for FLT-PET brain imaging getting standard WBRT off of 12-046, (without sorafenib), as a comparator group (not "arm").
Cohort 2
Cohort 2 will include patients treated with standard WBRT alone. Patients in both these cohorts will also be assessed with standard non-invasive MRI in addition to \[18F\] FLT PET at baseline (\< 4 weeks of WBRT) and 10-12 weeks after completion of WBRT.
Overall Study
STARTED
12
5
Overall Study
COMPLETED
12
5
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

18F-FLT-PET Imaging of the Brain in Patients With Metastatic Breast Cancer to the Brain Treated With Whole Brain Radiation Therapy With or Without Sorafenib: Comparison With MR Imaging of the Brain

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Cohort 1
n=12 Participants
All participants will be imaged using FLT-PET scans at baseline (within 4 weeks of initiation of WBRT), 7-10 days after completion of WBRT and then 10-12 weeks after WBRT. Participants will also be evaluated with MRI imaging at baseline and then 10-12 weeks after WBRT. Participants will be followed with MRI every 3 months (+/- 7 days) for the first year and then every 6 months (+/- 7 days) thereafter which is the standard of care.
Cohort 2
n=5 Participants
Cohort 2 will include patients treated with standard WBRT alone. Patients in both these cohorts will also be assessed with standard non-invasive MRI in addition to \[18F\] FLT PET at baseline (\< 4 weeks of WBRT) and 10-12 weeks after completion of WBRT.
Total
n=17 Participants
Total of all reporting groups
Age, Continuous
58 years
n=99 Participants
53 years
n=107 Participants
53 years
n=206 Participants
Sex: Female, Male
Female
11 Participants
n=99 Participants
0 Participants
n=107 Participants
11 Participants
n=206 Participants
Sex: Female, Male
Male
1 Participants
n=99 Participants
5 Participants
n=107 Participants
6 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=99 Participants
1 Participants
n=107 Participants
4 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
9 Participants
n=99 Participants
4 Participants
n=107 Participants
13 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
White
8 Participants
n=99 Participants
4 Participants
n=107 Participants
12 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=99 Participants
0 Participants
n=107 Participants
4 Participants
n=206 Participants
Region of Enrollment
United States
12 Participants
n=99 Participants
5 Participants
n=107 Participants
17 Participants
n=206 Participants

PRIMARY outcome

Timeframe: 1 year

Population: 12-039 is a companion FLT-PET brain imaging study to 12-046. 10 participants from 12-046 were consented to 12-039. 10 other participants were approached for FLT-PET brain imaging getting standard WBRT off of 12-046, (without sorafenib), as a comparator group (not "arm").

Overall Response Rate is the proportion of participants who had a complete or partial response (Cohort 1)

Outcome measures

Outcome measures
Measure
Participants With Metastatic Breast Cancer
n=12 Participants
All participants will be imaged using FLT-PET scans at baseline (within 4 weeks of initiation of WBRT), 7-10 days after completion of WBRT and then 10-12 weeks after WBRT. Participants will also be evaluated with MRI imaging at baseline and then 10-12 weeks after WBRT. Participants will be followed with MRI every 3 months (+/- 7 days) for the first year and then every 6 months (+/- 7 days) thereafter which is the standard of care.
Cohort 2
All participants will be imaged using FLT-PET scans at baseline (within 4 weeks of initiation of WBRT), 7-10 days after completion of WBRT and then 10-12 weeks after WBRT. Participants will also be evaluated with MRI imaging at baseline and then 10-12 weeks after WBRT. Participants will be followed with MRI every 3 months (+/- 7 days) for the first year and then every 6 months (+/- 7 days) thereafter which is the standard of care.
Overall Response Rate
71 % of pts w/complete or partial response

SECONDARY outcome

Timeframe: 1 year

Population: 12-039 is a companion FLT-PET brain imaging study to 12-046. 10 participants from 12-046 were consented to 12-039. 10 other participants were approached for FLT-PET brain imaging getting standard WBRT off of 12-046, (without sorafenib), as a comparator group (not "arm").

Comparing FLT PET findings with tissue analysis will enable us to determine if imaging results are concordant with histological findings and thus allow for confirmation of this hypothesis. In this manner, we propose to generate a bridge between tissue analysis and FLT-PET brain imaging studies. For patients needing to undergo craniotomy for resection of a brain metastasis after WBRT, tissue findings (radionecrosis versus viable tumor) will be correlated with radiologic assessment in an exploratory manner.

Outcome measures

Outcome measures
Measure
Participants With Metastatic Breast Cancer
n=12 Participants
All participants will be imaged using FLT-PET scans at baseline (within 4 weeks of initiation of WBRT), 7-10 days after completion of WBRT and then 10-12 weeks after WBRT. Participants will also be evaluated with MRI imaging at baseline and then 10-12 weeks after WBRT. Participants will be followed with MRI every 3 months (+/- 7 days) for the first year and then every 6 months (+/- 7 days) thereafter which is the standard of care.
Cohort 2
n=5 Participants
All participants will be imaged using FLT-PET scans at baseline (within 4 weeks of initiation of WBRT), 7-10 days after completion of WBRT and then 10-12 weeks after WBRT. Participants will also be evaluated with MRI imaging at baseline and then 10-12 weeks after WBRT. Participants will be followed with MRI every 3 months (+/- 7 days) for the first year and then every 6 months (+/- 7 days) thereafter which is the standard of care.
Change in Avg SUV Max From Baseline to 1 Year
No decline in avg SUV max of >/= 25% of WBRT participants
0 participants
3 participants
Change in Avg SUV Max From Baseline to 1 Year
Not enrolled in FLT-PET study
2 participants
0 participants
Change in Avg SUV Max From Baseline to 1 Year
Decline in avg SUV max of >/= 25% of WBRT + sorafenib participants
9 participants
0 participants
Change in Avg SUV Max From Baseline to 1 Year
No decline in avg SUV max of >/= 25% of WBRT + sorafenib participants
1 participants
0 participants
Change in Avg SUV Max From Baseline to 1 Year
Decline in avg SUV max of >/= 25% of WBRT participants
0 participants
2 participants

Adverse Events

Cohort 1

Serious events: 0 serious events
Other events: 0 other events
Deaths: 10 deaths

Cohort 2

Serious events: 4 serious events
Other events: 0 other events
Deaths: 5 deaths

Serious adverse events

Serious adverse events
Measure
Cohort 1
n=12 participants at risk
12-039 is a companion FLT-PET brain imaging study to 12-046.
Cohort 2
n=5 participants at risk
Cohort 2 will include patients treated with standard WBRT alone. Patients in both these cohorts will also be assessed with standard non-invasive MRI in addition to \[18F\] FLT PET at baseline (\< 4 weeks of WBRT) and 10-12 weeks after completion of WBRT.
Eye disorders
Blurred vision
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year
Nervous system disorders
Dizziness
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year
Infections and infestations
Lung Infection
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year
Nervous system disorders
Muscle weakness right-sided
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year
Nervous system disorders
Seizure
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year
Renal and urinary disorders
Urinary retention
0.00%
0/12 • 1 year
20.0%
1/5 • 1 year

Other adverse events

Adverse event data not reported

Additional Information

Dr. Andrew Seidman, MD

Memorial Sloan Kettering Cancer Center

Phone: 646-888-4559

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place