Diffuse Optical Tomography (DOT) for Monitoring Response to Neoadjuvant (Preoperative) Chemotherapy in Breast Cancer
This study has been terminated.
National University, Singapore
Information provided by (Responsible Party):
Yap Yoon Sim, National Cancer Centre, Singapore
First received: July 12, 2011
Last updated: May 2, 2013
Last verified: May 2013
The aim of the study is to determine if DOT can detect response early in breast cancer patients undergoing neoadjuvant chemotherapy.
||Observational Model: Cohort
Time Perspective: Prospective
||Diffuse Optical Tomography (DOT) for Monitoring Response to Neoadjuvant (Preoperative) Chemotherapy in Breast Cancer
Primary Outcome Measures:
- Parameters derived from the optical images acquired with the DOT system [ Time Frame: These parameters will be obtained from patients during neoadjuvant chemotherapy process, which is up to an average of 6 months ] [ Designated as safety issue: No ]
The primary parameters derived from the optical images acquired with the DOT system include: The volume of tumor microvasculature V, the total haemoglobin concentration (THC), and the blood volume index BVI (=VC).
Other available optical parameters are: blood oxygenation in the tumor microvasculature (SO2), its spatial distribution and dynamic fluctuation; dynamic blood perfusion.
These parameters will be compared with histopathological response.
Biospecimen Retention: Samples With DNA
Secondary Outcome Measures:
- Change in DOT parameters such as BVI, SO2, blood perfusion dynamic fluctuation [ Time Frame: These parameters will be obtained from patients during neoadjuvant chemotherapy process, which is up to an average of 6 months ] [ Designated as safety issue: No ]
The change in DOT parameters such as BVI, SO2, blood perfusion dynamic fluctuation will be correlated with response based on clinical examination, ultrasound, MMG and MRI.
Standard definitions for clinical response will be used to classify patients into four categories: complete response (CR), partial response (PR), progressive disease (PD) and stable disease (SD).
Pre-operative biopsy specimens and definitive surgical specimens
| Study Start Date:
| Study Completion Date:
| Primary Completion Date:
||May 2013 (Final data collection date for primary outcome measure)
The pilot study will enrol up to ten patients over one year. Patients receiving neoadjuvant chemotherapy for breast cancer will undergo baseline clinical examination, mammography, ultrasound, MRI and DOT before commencement of treatment. DOT will be repeated at 1,3,6 weeks after chemotherapy, and at the end of each chemotherapy regimen. Ultrasound will be repeated every 6 weeks and at the end of treatment. Mammography and MRI will be repeated once at the end of treatment before surgery. A breast pathologist will evaluate the subtype of breast cancer and the pathologic response of the operative specimen at the end of treatment. Patient satisfaction questionnaires will be administered to evaluate their preferences for DOT, ultrasound, mammography and MRI scanning at the beginning and the end of the study.
|Ages Eligible for Study:
||21 Years and older
|Genders Eligible for Study:
|Accepts Healthy Volunteers:
Approximately 60 patients are prescribed neaodjuvant chemotherapy for breast cancer at National Cancer Centre Singapore annually. Accrual is expected to be 10 patients per year. Up to 10 patients will be recruited for this study.
- Patients receiving neoadjuvant chemotherapy for breast cancer.
- Patients with locally advanced breast tumours or large operable tumours who require neoadjuvant treatment for downstaging.
- Histological confirmation of invasive breast carcinoma.
- Patients with metastatic disease may be eligible if they have oligometastatic disease and breast surgery after neoadjuvant chemotherapy is planned.
- Signed informed consent
- Age equal to or more than 21 years
- Life expectancy greater than 12 weeks.
- ECOG performance status 0-2
- Fungating or ulcerated tumours
- Inability to provide informed consent
- Anticipated inability to follow-up patient for response to chemotherapy
- Any contraindication to undergoing ultrasound, MRI, MMG or DOT
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study.
To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below.
For general information, see Learn About Clinical Studies.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01394315
|National Cancer Centre Singapore
|Singapore, Singapore, 169610 |
National Cancer Centre, Singapore
National University, Singapore
||Yoon Sim Yap, MBBS, FRACP
||National Cancer Centre, Singapore
No publications provided
||Yap Yoon Sim, Senior Consultant, National Cancer Centre, Singapore
History of Changes
|Other Study ID Numbers:
|Study First Received:
||July 12, 2011
||May 2, 2013
||Singapore: SingHealth Centralised Institutional Review Board
Keywords provided by National Cancer Centre, Singapore:
diffuse optical tomography
Additional relevant MeSH terms:
ClinicalTrials.gov processed this record on November 25, 2015
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