A Multi-centre Clinical Study to Evaluate the LightPath® Imaging System in Wide Local Excision (WLE) for Breast Cancer
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 170
- 试验地点
- 10
- 主要终点
- Diagnostic performance of the LightPath® Imaging System
研究概览
简要总结
This study is a prospective, single arm, multi-centre study to evaluate the intra-operative use of the LightPath® Imaging System for the assessment of tumour margin status compared to hospital standard of care histopathology in wide local excision (WLE) for breast cancer
The intraoperative 18F-fluorodeoxyglucose (18F-FDG) LightPath® Images will be used to inform the surgeons about detectable residual cancer, in an attempt to achieve better guided cancer surgery and complete tumour excision with clear WLE resection margins.
Study sites will use the local criteria considered standard of care to guide decisions to act on positive margins.
In the LightPath® arm the resection margin status of the WLE specimen, cavity shavings (if any) and the metastatic status of axillary (sentinel) lymph nodes as measured with the LightPath® Imaging System will be compared with histopathology results.
详细描述
Female subjects with a diagnosis of invasive breast cancer scheduled to have wide local excision (WLE) +/- sentinel lymph node biopsy (SLNB) or axillary lymph node dissection (ALND) will be screened and receive 18F-FDG plus LightPath® Image. Subjects will have standard of care WLE. Extra cavity shaving due to positive 18F-FDG LightPath® Images is at the discretion of the surgeon.
Subjects will receive an intravenous injection of up to 5 MBq/kg, to a maximum 300 MegaBecquerel (MBq) of 18F-FDG prior to surgery.
Following resection, the WLE specimen will be examined using the LightPath® Imaging System. If the surgeons detect a positive signal they may perform cavity shavings of the resection cavity area corresponding to the positive signal area (up to a maximum thickness of 10mm).
Axillary SLNB will be performed according to local practice. At sites where 99mTc is used: In the 18F-FDG + LightPath® a higher dose of up to 150 MBq technetium-99m (99mTc) nanocolloid is necessary to avoid 18F-FDG masking the signal from 99mTc. Blue dye will be used according to local practice at sites where it is considered standard of care.
Sentinel lymph nodes (SLNs) will be examined using the LightPath® Imaging System. Where clinically indicated, ALND will be performed as per standard of care. At the time this protocol was finalised, LightPath® data involved lymph nodes sufficient to support recommendations were not available. For this reason, LightPath® Image results will not be used to direct ALND.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •Subjects who have signed an informed consent form prior to any study related activity
- •Subjects who are able to give voluntary, written informed consent to participate in this study.
- •Subjects who are able to understand this study and are willing to complete all the study assessments
- •Female participants ≥18 years of age with a diagnosis of invasive breast cancer
- •Subjects who have disease in one quadrant of the breast, not including the nipple
- •Subjects scheduled for WLE for breast cancer +/- SLNB or ALND.
- •Females of childbearing age must have a negative pregnancy test (by Beta human chorionic gonadotropin (HCG) qualitative analysis), or must have had a history of a surgical sterilisation, or must give history of no menses in the past twelve months
排除标准
- •Subjects with pure DCIS or with pleomorphic LCIS
- •Subjects who have had surgery in the ipsilateral breast in the past 12 months
- •Subjects who have had radiotherapy in the ipsilateral breast
- •Subjects who have had neoadjuvant systemic therapy
- •Subjects who have had systemic chemotherapy in the past two years
- •Subjects with a non-palpable lesion scheduled to have radio guided occult lesion localisation (ROLL)
- •Subjects who have known hypersensitivity to 18F-FDG
- •Subjects who are pregnant or lactating
- •Subjects who have an existing medical condition that would compromise their participation in the study
- •Subjects who have participated in a clinical study in the last 2 months
- •Subjects with a current or active history of other known cancer
研究组 & 干预措施
Treatment arm
Wide local excision (WLE) for breast cancer with intra-operative use of the LightPath® Imaging System.
干预措施: LightPath® Imaging System. (Device)
结局指标
主要结局
Diagnostic performance of the LightPath® Imaging System
时间窗: Initial surgery
The diagnostic performance of tumour margin assessment with the LightPath® Imaging System compared to hospital histopathology.
次要结局
- The recommendation by the study site's multidisciplinary team (MDT) to re-operate at the index location (breast) within 1 to 6 weeks post-initial surgery according to local practice.(1-6 weeks post initial surgery)
- Rate of re-operation at the index location(1 to 6 weeks post initial surgery)
- Safety - adverse events (related to breast surgery)(Initial surgery)
- Radiation dosimetry(Initial surgery)
- Volume of tissue excised(Initial surgery)