Trial Outcomes & Findings for Can HER2 Targeted PET/CT Imaging Identify Unsuspected HER2 Positive Breast Cancer Metastases, Which Are Amenable to HER2 Targeted Therapy? (NCT NCT02286843)

NCT ID: NCT02286843

Last Updated: 2021-06-18

Results Overview

Both SUVmax and SUVpeak will be recorded for lesions, and SUVmax and SUVaverage will be recorded for background measurements. Only those foci qualitatively scored conspicuously positive by both readers (scores of 4 or 5) will be considered as "positive".

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

49 participants

Primary outcome timeframe

3 years

Results posted on

2021-06-18

Participant Flow

Participant milestones

Participant milestones
Measure
HER2-targeted PET/CT
Pts with confirmed HER2- breast cancer will undergo HER2-targeted PET/CT. 89Zr-trastuzumab is a novel radiotracer which allows excellent visualization of HER2+ lesions. 89Zr-pertuzumab is a novel radiotracer which may allow for specific visualization of HER2+ lesions. PET/CT imaging with these novel radiotracers will allow evaluation of all identifiable malignant lesions, rather than evaluation of only single lesions by biopsy.
Overall Study
STARTED
49
Overall Study
COMPLETED
43
Overall Study
NOT COMPLETED
6

Reasons for withdrawal

Reasons for withdrawal
Measure
HER2-targeted PET/CT
Pts with confirmed HER2- breast cancer will undergo HER2-targeted PET/CT. 89Zr-trastuzumab is a novel radiotracer which allows excellent visualization of HER2+ lesions. 89Zr-pertuzumab is a novel radiotracer which may allow for specific visualization of HER2+ lesions. PET/CT imaging with these novel radiotracers will allow evaluation of all identifiable malignant lesions, rather than evaluation of only single lesions by biopsy.
Overall Study
Not Treated
4
Overall Study
Protocol Violation
1
Overall Study
Withdrawal by Subject
1

Baseline Characteristics

Can HER2 Targeted PET/CT Imaging Identify Unsuspected HER2 Positive Breast Cancer Metastases, Which Are Amenable to HER2 Targeted Therapy?

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
HER2-targeted PET/CT
n=49 Participants
Pts with confirmed HER2- breast cancer will undergo HER2-targeted PET/CT. 89Zr-trastuzumab is a novel radiotracer which allows excellent visualization of HER2+ lesions. 89Zr-pertuzumab is a novel radiotracer which may allow for specific visualization of HER2+ lesions. PET/CT imaging with these novel radiotracers will allow evaluation of all identifiable malignant lesions, rather than evaluation of only single lesions by biopsy.
Age, Continuous
51 years
n=99 Participants
Sex: Female, Male
Female
49 Participants
n=99 Participants
Sex: Female, Male
Male
0 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
44 Participants
n=99 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=99 Participants
Race (NIH/OMB)
Asian
6 Participants
n=99 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=99 Participants
Race (NIH/OMB)
White
36 Participants
n=99 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=99 Participants
Region of Enrollment
United States
49 Participants
n=99 Participants

PRIMARY outcome

Timeframe: 3 years

Population: Thirteen percent of women with HER2-negative primary malignancy has HER2-positive metastatic disease detected by HER2-targeted imaging.

Both SUVmax and SUVpeak will be recorded for lesions, and SUVmax and SUVaverage will be recorded for background measurements. Only those foci qualitatively scored conspicuously positive by both readers (scores of 4 or 5) will be considered as "positive".

Outcome measures

Outcome measures
Measure
HER2-targeted PET/CT
n=49 Participants
Pts with confirmed HER2- breast cancer will undergo HER2-targeted PET/CT. 89Zr-trastuzumab is a novel radiotracer which allows excellent visualization of HER2+ lesions. 89Zr-pertuzumab is a novel radiotracer which may allow for specific visualization of HER2+ lesions. PET/CT imaging with these novel radiotracers will allow evaluation of all identifiable malignant lesions, rather than evaluation of only single lesions by biopsy.
Percentage of Patients With HER2- Primary Breast Cancer Who Develop Imagable HER2+ Metastases
13 % of participants

Adverse Events

HER2-targeted PET/CT

Serious events: 6 serious events
Other events: 0 other events
Deaths: 37 deaths

Serious adverse events

Serious adverse events
Measure
HER2-targeted PET/CT
n=49 participants at risk
Pts with confirmed HER2- breast cancer will undergo HER2-targeted PET/CT. 89Zr-trastuzumab is a novel radiotracer which allows excellent visualization of HER2+ lesions. 89Zr-pertuzumab is a novel radiotracer which may allow for specific visualization of HER2+ lesions. PET/CT imaging with these novel radiotracers will allow evaluation of all identifiable malignant lesions, rather than evaluation of only single lesions by biopsy.
Gastrointestinal disorders
Abdominal pain
2.0%
1/49 • 1 year
Blood and lymphatic system disorders
Anemia
2.0%
1/49 • 1 year
Cardiac disorders
Cardiac arrest
2.0%
1/49 • 1 year
General disorders
Death NOS
2.0%
1/49 • 1 year
Gastrointestinal disorders
Duodenal ulcer
6.1%
3/49 • 1 year
Respiratory, thoracic and mediastinal disorders
Pleural effusion
2.0%
1/49 • 1 year
Respiratory, thoracic and mediastinal disorders
Respiratory failure
2.0%
1/49 • 1 year

Other adverse events

Adverse event data not reported

Additional Information

Dr. Gary Ulaner, MD, PhD

Memorial Sloan Kettering Cancer Center

Phone: 212-639-7373

Results disclosure agreements

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