A Phase 1 interventional study of [18F]FMISO PET/MRI imaging in HER2-positive Breast Cancer, sponsored by University of Alabama at Birmingham. Recruiting at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-17.
Sponsored by University of Alabama at Birmingham · Phase 1, Interventional, and Diagnostic
The purpose of the study is to see if using an investigational drug called [18F]FMISO with PET/MRI imaging can help monitor and predict the effect of trastuzumab (Herceptin) on chemotherapy in patients diagnosed with advanced HER2 positive breast cancer. This study is for imaging purposes only and is not a treatment study. The results of this study will not change a patient's clinical treatment plan but it may help physicians and researchers better understand how best to treat patients with breast cancer in the future.
There are 2 groups or cohorts in this study. The cohort patient's are in is based on their clinical treatment plan set by your physician. The number of imaging visits and timing of visits will be determined by what cohort they are in.
If the patient is in cohort #1, they will make 4 visits to UAB. They will be scheduled for a pre-study or screening visit. During the pre-study visit, once consented, they will have a blood draw to determine kidney function, and a pregnancy test if they are a woman of childbearing potential. Their vital signs will be taken, they will be asked to fill out an MRI questionnaire, and they will have a PET/MRI fit test. If eligible for the study, they will be scheduled for the first PET imaging visit which will occur before they start chemotherapy. During this PET imaging visit, they will have a pregnancy test if they are a woman of childbearing potential. A plastic catheter will be placed into a vein in their arm and they will then be positioned in the PET/MRI scanner. Once positioned, they will be injected with the investigational radioactive drug, [18F]FMISO. They will then be imaged for up to 90 minutes during which time they will receive an FDA approved contrast agent called Prohance (gadoteridol). Once all the procedures are complete, the catheter will be removed and they may resume all normal activities. The patient will receive a follow-up phone call within 24-48 hours of your injection to be sure they are not experiencing any adverse events. Their second imaging visit will be scheduled after they receive therapy with Herceptin alone and within 10 days before their first cycle of combination therapy including Herceptin. During the second PET imaging visit, the same procedures will be followed as were performed during your first PET imaging visit. They will receive a follow-up phone call within 24-48 hours of your injection to be sure you are not experiencing any adverse events. Their third PET imaging visit will be scheduled after their first cycle of combination therapy including Herceptin and within 10 days before starting their second cycle of combination therapy including Herceptin. During the third PET imaging visit, the same procedures will be followed as were performed during their first and second PET imaging visits. The patient will receive a follow-up phone call within 24-48 hours of their injection to be sure they are not experiencing any adverse events.
If the patients are in cohort #2, they will make 3 visits to UAB. The patients will be scheduled for a pre-study or screening visit. During the pre-study visit, once consented, they will have a blood draw to determine kidney function, and a pregnancy test if they are a woman of childbearing potential. Their vital signs will be taken, they will be asked to fill out an MRI questionnaire, and they will have a PET/MRI fit test. If eligible for the study, they will be scheduled for the first PET imaging visit which will occur before they start chemotherapy. During this visit, they will have a pregnancy test if they are a woman of childbearing potential. A plastic catheter will be placed into a vein in their arm and they will then be positioned in the PET/MRI scanner. Once positioned, the patient will be injected with the investigational radioactive drug, [18F]FMISO. They will then be imaged for up to 90 minutes during which time they will receive an FDA approved contrast agent called Prohance (gadoteridol). Once all the procedures are complete, the catheter will be removed and the patient may resume all normal activities. They will receive a follow-up phone call within 24-48 hours of your injection to be sure they are not experiencing any adverse events. Your second PET imaging visit will be scheduled after your first cycle of combination therapy including Herceptin and within 10 days before starting the second cycle of combination therapy including Herceptin. During the third PET imaging visit, the same procedures will be followed as were performed during the first PET imaging visits. The patient will receive a follow-up phone call within 24-48 hours of your injection to be sure they are not experiencing any adverse events.
We will follow the patients every 6 months for 5 years by reviewing their medical records to see how they are doing.
University of Alabama at Birmingham is the lead sponsor of 1,396 studies on the registry; 284 are open to participants now.
Of its 156 completed or terminated interventional studies of FDA-regulated products, 124 (79%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Herceptin monotherapy cohort. Locally advanced HER2+ breast cancer patients receiving neoadjuvant Herceptin monotherapy prior to combination therapy will undergo three contrast-enhanced \[18F\]FMISO PET/MRI scans. Each imaging session will be identical. Imaging session one will be after diagnosis and before beginning monotherapy. Imaging session two will be within 10 days prior to beginning combination therapy with targeted HER2 agents. Imaging session three will be within 10 days prior to beginning the second round of combination therapy with targeted HER2 agents.
Drug: [18F]FMISO PET/MRI imaging
Locally advanced HER2+ breast cancer patients that receiving neoadjuvant combination therapy including Herceptin will undergo two contrast-enhanced \[18F\]FMISO PET/MRI imaging. Imaging session one will be after diagnosis and before beginning combination therapy. Imaging session two will be within 10 days prior to beginning the second round of combination therapy with targeted HER2 agents.
Drug: [18F]FMISO PET/MRI imaging
\[18F\]FMISO PET/MRI imaging
Baseline measure of PET standardized uptake value (SUV).
Compare baseline metrics from PET/MRI
Time frame: Baseline
Baseline measure of apparent diffusion coefficient (ADC) in mm2/sec from MRI.
Compare baseline metrics from PET/MRI
Time frame: Baseline
Baseline measure of signal enhancement ratio (SER) from MRI.
Compare baseline metrics from PET/MRI
Time frame: Baseline
Changes in SER from MRI
Compare percent change of SER from imaging visit 3 to the baseline.
Time frame: Baseline through 6 months
Changes in ADC from MRI
Compare percent change of ADC (mm2/sec) from imaging visit 3 to the baseline.
Time frame: Baseline through 6 months
Changes in SUV from PET
Compare percent change of SUV from imaging visit 3 to the baseline.
Time frame: Baseline through 6 months
Follow-up
Compare changes in imaging metrics to neoadjuvant response (defined as pathological complete response, near-pathological response, residual disease).
Time frame: Baseline through 5 years
Follow-up
Compare changes in imaging metrics to clinical response (defined as disease free-survival or recurrence).
Time frame: Baseline through 5 years
Changes in ADC (mm2/sec) from MRI.
Compare percent change from imaging visit 2 to the baseline.
Time frame: Baseline through 2 months
Changes in SER from MRI.
Compare percent change from imaging visit 2 to the baseline.
Time frame: Baseline through 2 months
Changes in SUV from PET.
Compare percent change from imaging visit 2 to the baseline.
Time frame: Baseline through 2 months
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University of Alabama at Birmingham