LightPathTM Imaging System for Ex-vivo Assessment of Margin and Lymph Node Status in Breast Cancer Surgical Specimens
|Study Design:||Time Perspective: Prospective|
|Official Title:||A Pilot Study to Evaluate Cerenkov Luminescence Imaging for Measuring Margin and Lymph Node Status in Breast Cancer Surgical Specimens|
- Tumour margin status of the Wide Local Excision specimen as determined by the LightPathTM Imaging System [ Time Frame: Intra-operative ]
- Metastatic status of dissected lymph nodes as determined by the LightPathTM Imaging System [ Time Frame: Intra-operative ]
- Radiation dosimetry to operating theatre, recovery area and pathology staff [ Time Frame: Up to 24 hours after injection of radiopharmaceutical ]
- Ease of use of the LightPathTM Imaging System [ Time Frame: Intra-operative ]
|Study Start Date:||June 2014|
|Study Completion Date:||July 2016|
|Primary Completion Date:||June 2016 (Final data collection date for primary outcome measure)|
Female patients ≥30 years of age with known breast cancer scheduled for breast-conserving surgery (BCS) +/- sentinel lymph node biopsy (SLNB) or axillary lymph node dissection (ALND)
Subject's blood glucose level will be measured on the day of surgery. Subjects with a blood glucose level < 12 mmol/l receive an intravenous injection of 5 MBq/kg, up to a maximum 300 MBq of 18F-fluorodeoxyglucose (18F-FDG) prior to surgery. Breast cancer surgery will be performed per standard of care. SLNB will be performed using a dose of 150 MBq technetium 99 (99mTc) nanocolloid and patent blue dye. The resected WLE specimen and lymph nodes will be imaged in the LightPathTM Imaging System. A member of the research team who is not the operating surgeon will capture LightPathTM images intra-operatively.
Prior to CLI, the WLE specimen will be placed in a specimen holder. CLI is performed according to the LightPathTM Imaging System instructions for use. All CLI will be performed between 1 and 3 hours post injection of 18F-FDG.
The WLE specimen will then undergo standard of care histopathological analysis with a positive margin defined as either invasive carcinoma or ductal carcinoma in situ (DCIS) within 2mm of the specimen surface. Lymph nodes will also be examined according to standard of care histopathological analysis.
The CLI results will not be used to influence any surgical or clinical decision-making.
All staff in the operating theatre and the recovery area caring for the patient, and pathology staff processing surgical specimens will wear badge dosimeters. Staff handling surgical specimens will also wear ring dosimeters.
Please refer to this study by its ClinicalTrials.gov identifier: NCT02037269
|London, United Kingdom, SE1 9RT|
|Principal Investigator:||Anand D Purushotham, MBBS FRCS MD||King's College London|