Use of the EnLightTM and LightPathTM Imaging Systems in Gastrointestinal Tumour Surgery

Lightpoint Medical Limited

Overview

This study will evaluate the performance of the EnLightTM and LightPathTM Imaging Systems in detecting tumour lesions in patients with gastric, pancreas, bile duct or duodenal cancer. EnLightTM will be used to detect positron emission and the LightPathTM system to detect Cerenkov Luminescence. Both are emitted by the Positron Emission Tomography (PET) agent. The study will also evaluate the patient safety and radiation safety of the EnLightTM, and the safety for the device operators and surgical staff of the LightPathTM Imaging System.

This is a pilot study that is prospective, open-label, single-centre in nature in patients with gastric, pancreas, bile duct or duodenal cancer in whom tumour excision surgery is indicated. Patients who give written informed consent will be screened for the study (Visit 1). Patients will undergo a positron emission tomography (PET) whole body scan. Screening assessments, including the PET scan, must be performed no less than 60 days before surgery and may be performed on the day of surgery. On the day of surgery (Visit 2), subject's blood glucose level will be measured. Subjects with a blood glucose level \< 12 mmol/l will receive an intravenous injection of 2-5 Mega Becquerel/kg (MBq/kg), up to a maximum 300 MBq of fluorine-18 fluorodeoxyglucose (18F-FDG) prior to surgery. During surgery and not less than 120 minutes after injection of FDG, the primary lesion will be imaged using the EnLightTM system to determine margin status. Gastrointestinal tumour excision surgery will then be performed according to standard of care. The surgical cavity and the lymph nodes will be imaged by the EnLightTM system to establish whether other radioactive tissue remain. These results will not influence any surgical or clinical decision-making, which will remain as standard of care. The resected tumour excision specimen will be imaged by the LightPathTM Imaging System. The resected tumour excision specimen will, in addition, be analysed according to standard of care pathology. The surgeon and surgical staff will be monitored for external exposure to ionizing radiation by means of dosimeters, and position sensors during surgery. Patients will be followed-up (Visit 3) within a 2 - 14 day window after the end of surgery for adverse events (AEs). Those related to the use of the investigational devices, or the PET imaging agent will be identified as such.

Study Type

OBSERVATIONAL

Conditions

Gastric Cancer Pancreatic Cancer Bile Duct Cancer Duodenal Cancer

Interventions

The marketed product 2-5 MBq/kg 18F-fluorodeoxyglucoseDRUG

The FDG is injected at least 120 minutes prior to the imaging by the EnLightTM and LightPathTM Imaging Systems

EnLightTMDEVICE

The surgical cavity and the resected lymph nodes (if any) will be imaged by the EnLightTM system to establish whether radioactive tissue remains after surgery.

LightPathTM Imaging SystemDEVICE

The resected tumour excision specimens and the resected lymph nodes (if any)will be imaged by CLI and by WLI to establish whether they contain radioactive tissue.

Eligibility

Sex: ALLMin age: 30 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Provides written informed consent to participate in the study. 2. Is a man or woman aged ≥ 30 years. 3. Patients diagnosed with gastric, pancreatic, bile duct or duodenal cancer whose treatment is to be tumour excision surgery. 4. Life expectancy of at least 12 months. 5. Blood glucose level \< 12 mmol/l. Exclusion Criteria: 1. Participation in another clinical study either concurrently or within 180 days prior to surgery. 2. Major surgery within 30 days before the baseline visit. 3. Women who are pregnant or lactating. 4. Renal impairment, hepatic impairment, serious infection or other life-threatening illness, other than cancer, within 60 days before surgery. 5. Previous exposure to ionizing radiation \>5 millisieverts (mSv) in the previous 12 months.

Locations (1)

Semmelweis University First Clinic of Surgery

Budapest, Budapest, Hungary

Outcomes

Primary Outcomes

The location of PET imaging agent as measured by beta particle detection

The EnLightTM will be used for determining the number of lesions, their location and margin status, in the surgical cavity including within surrounding tissue, and lymph nodes. The EnLightTM is a beta particle detector used for imaging the location of the PET imaging agent. It works both in a hot-spot mode, to localise areas with high beta particle detection signal from the PET imaging agent, and in an imaging mode that allows video imaging of areas where the PET imaging agent has accumulated.

Time frame: Intraoperatively (during the single session of surgery on Day 0)

The location of PET imaging agent as measured by the LightPathTM Imaging System

The LightPathTM Imaging System will be used for determining the margin status of lesions and the metastatic involvement of lymph nodes.

Time frame: Intraoperatively (during the single session of surgery on Day 0)

Secondary Outcomes

The number of lesions by histopathology

Number of lesions according to standard of care histopathology.

Time frame: Expected on average Day 10 after surgery

The number of metastatic lymph nodes by histopathology

The number of metastatic lymph nodes according to standard of care histopathology.

Time frame: Expected on average Day 10 after surgery

The extent of resection margins by histopathology

Extent of resection margins according to standard of care histopathology.

Time frame: Expected on average Day 10 after surgery

Ease of use measured by questionnaire

Ease of use measured by study-specific questionnaire

Data from ClinicalTrials.gov

This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.