- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02766530
Integrated Positron Emission Tomography Magnetic Resonance (PET/MR) of Breast Cancer
Use of Integrated PET/MR to Evaluate Clinical Staging and Monitor Treatment Response of Neoadjuvant Chemotherapy for Breast Cancer Patients: A Pilot Study
The investigators will use integrated PET/MR for the goals below:
- Use of PET-guided proton MRS (MR spectroscopy) and DCE MRI (dynamic contrast-enhanced MRI) for patients who will receive NAC (neoadjuvant chemotherapy) for breast cancer to monitor treatment response.
- Use of dynamic and static PET to monitor treatment response for NAC, and to investigate the correlation of PET results versus MRS, DCE MRI.
- Compare clinical staging by PET/MR and by clinical assessment.
- On pre-chemotherapy studies, to investigate the association of molecular marker status with the dynamic and static PET, MRS and DCE MRI parameters.
Study Overview
Detailed Description
Breast MRI with dynamic contrast-enhanced series (DCE MRI) is sensitive for breast cancer diagnosis (sensitivity 95-100%) with variable specificity (37-97%). Breast MRI was also used for pre-operative staging, and monitoring of therapeutic response of neoadjuvant chemotherapy (NAC). DCE MRI analysis with semi-quantitative and pharmacokinetic method can discriminate the responders versus non-responders during NAC. Analysis of choline peak on proton MR spectroscopy (MRS) can increase the MRI specificity of breast lesion diagnosis to 82-100%. Choline analysis was also used for monitoring treatment response of NAC. The change of choline integral can parallel the response status of NAC and was well correlated (r=0.91; P=0.01) with the change of lesion size, and the choline change can be found as early as 24 hours after first dose of chemotherapy.
Breast Positron Emission Tomography (PET) with 18F-FDG (2-deoxy-2-(18F)fluoro-D-glucose) was mainly used for staging and monitoring of treatment response of NAC, with the reduction of FDG uptake (P<0.001) was more evident than that of tumor size (P=0.005). However, FDG PET displayed a limited role in evaluation of primary breast cancer, brain and axillary lymph nodes metastases. There were publications regarding combined FDG PET/CT and breast MRI for breast cancer diagnosis and monitoring NAC response. The SUV on static PET and MRI findings were correlated well with molecular marker status of breast cancer (ER, PR, HER2), and were associated with clinical outcome. The change of choline integral on MRS was well correlated to the peak of SUV during NAC (r=0.84,P=0.02).The changes of dynamic PET parameters including rate constants for uptake, washout and FDG influx were moderately correlated with the DCE MRI parameters and can reflect the response status of NAC. However, PET/CT and MRI were performed by two machines at different time, so breast positioning is different, causing the lesion targeting sometimes difficult. Moreover, the selection of ROI/VOI for PET and MRS, DCE MRI is subjective with inter-observer bias. A new technology- PET/MR- can solve these problems. PET/MR has less radiation and offers more soft tissue details than PET/CT. A most recent PET/MR design- integrated PET/MR- is commercially available. Using the integrated PET/MR, patients can undergo whole body PET and MRI at the same time, followed by dedicated protocol for specific organ of primary tumor origin. The ROI/VOI of breast DCE MRI, MRS can be selected according to SUVmax site from PET, which is more objective and can ensure that the VOI/ROI is at same location across all techniques. PET/MR showed comparable reliability to PET/CT for detection of oncologic diseases, and contributed even more changes of clinical management than PET/CT. However, use of PET/MR for breast cancer was seldom reported.
The investigators will use integrated PET/MR for the studies below:
- Use of PET-guided proton MRS and DCE MRI for patients who will receive NAC for breast cancer to monitor treatment response.
- Use of dynamic and static PET to monitor treatment response for NAC, and to investigate the correlation of PET results versus MRS, DCE MRI.
- Compare clinical staging by of PET/MR and by clinical assessment.
- On pre-chemotherapy studies, to investigate the association of molecular marker status with the dynamic and static PET, MRS and DCE MRI parameters.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Locations
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Taipei, Taiwan, 100
- Recruiting
- National Taiwan University Hospital
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Principal Investigator:
- Ruoh-Fang Yen, MD, PhD
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Contact:
- Ruoh-Fang Yen, MD, PhD
- Phone Number: 65581 886223123456
- Email: rfyen@ntu.edu.tw
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Contact:
- Jane Wang, MD, PhD
- Phone Number: 2979 886228712121
- Email: jwwangjen@gmail.com
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Women aged 25-75 years old.
- Women with recently diagnosed breast cancer and who will receive NAC to reduce tumor burden before surgery. (including locally advanced breast cancer (LABC) according to clinical assessment; or tumor size > 2cm, that is, at least T2 in TNM staging).
Exclusion Criteria:
- Estimated GFR (eGFR) < 60 mL/min/1.73 m2 and blood glucose > 135 mg/dl; Past or present history of acute renal failure, renal dialysis, diabetes mellitus.
- Women who received metallic fixation, coronary artery stent in recent 3 months; or women who received mechanical valve replacement that is not compatible with MR magnet; or women with aneurysmal clips, pacemakers.
- Past history of claustrophobia.
- Women who are pregnant or who are planning to be pregnant, or who are lactating (though the possibility in our target population should be very low)
- Past history of breast cancer within recent 5 years before the currently diagnosed breast cancer.
- Women who received chemotherapy for other disease entity in recent 1 year.
- Women who cannot cooperate with the examinations.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: PETMR study
All the study participants will receive PET MR examinations before neoadjuvant chemotherapy and during neoadjuvant chemotherapy (during early cycle as well as during mid-cycle of chemotherapy treatment).
There will be two groups of patients after completion of neoadjuvant chemotherapy, that is, responders versus non-responders.
We will compare the PET MR imaging parameters before, during neoadjuvant chemotherapy between the two groups of patients.
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Use of PETMR study to evaluate the treatment response of breast cancer women
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
treatment effect of neoadjuvant chemotherapy evaluated by positron emission tomography magnetic resonance (PET/MR)
Time Frame: 7 months for each patient
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7 months for each patient
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Clinical staging of pre-chemotherapy breast cancer by PET/MR
Time Frame: 12 months
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12 months
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Collaborators and Investigators
Investigators
- Principal Investigator: Ruoh-Fang Yen, MD, PhD, National Taiwan University Hospital
Study record dates
Study Major Dates
Study Start
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 201401091MINA
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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