Early Feasibility Study of the “Easy Light” Fluorecence Imaging System


This is an early feasibility study to evaluate the device functionality of an open-field handheld wireless fluorecence imaging system for detection of sentinel lymph nodes in women with cervical and uterine cancers who underwent open surgery.

Full Title of Study: “Early Feasibility Study of an Open-Field Handheld Wireless Fluorecence Imaging System for Detection of Sentinel Lymph Nodes in Women With Cervical and Uterine Cancers”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: N/A
    • Intervention Model: Single Group Assignment
    • Primary Purpose: Device Feasibility
    • Masking: None (Open Label)
  • Study Primary Completion Date: July 27, 2021

Detailed Description

This study was designed to clinically evaluate the functionality of an prototype of our near-infrared fluorescence device named Easy Light. In brief, this device is an open-field handheld wireless fluorecence imaging system that allows real-time visualization of fluorescent dyes such as indocyanine green (ICG) using smartphones and tablets. The handheld is a rechargeable device responsible for excitation of the operative field with infra-red lighting and for capturing the fluorescence emitted by de fluorescent dye to be visualized via wi-fi in the smartphones and tablets using a pre-installed application software. Following the standards of near-infrared fluorescence for detection of sentinel lymph nodes in gynecological malignancies, the hypothesis was the identification of sentinel lymph nodes after lymphatic mapping by interstitial indocyanine green injection in the cervix was feasible with the use of our device named Easy Light.


  • Device: Sentinel Lymph Node Biopsy
    • Detection of sentinel lymph nodes by indocyanine green (ICG) fluorescent dye technique, using a prototype of the Easy Light device.

Arms, Groups and Cohorts

  • Other: Sentinel Lymph Node Biopsy
    • Sentinel lymph node biopsy by indocyanine green (ICG) fluorescent dye technique, using a prototype of the Easy Light device. Lymph node dissection in each hemipelvis should be performed as standard if no sentinel lymph node is detected. Decision of proceeding with complementary lymph node dissection after sentinel lymph node detection is a surgeon decision, according to his/her usual practice.

Clinical Trial Outcome Measures

Primary Measures

  • The ability to detect sentinel lymph nodes.
    • Time Frame: Intraoperativelly
    • The ability to detect at least one sentinel lymph node per patient during open surgeries.

Participating in This Clinical Trial

Inclusion Criteria

1. Patients with biopsy-proven cervical or uterine cancers; 2. Clinical stage I or II, according to FIGO – The International Federation of Gynecology and Obstetrics; 3. Indication for sentinel lymph node biopsy with or without complementary lymphadenectomy by her medical assistant; 4. Performance status of 0-2; 5. No synchronous malignancies or previous oncological treatments such as radiation or major abdominal surgery; 6. Absence of neuro-psychiatric disorders, apparent or confirmed infections, history of drug allergies, limiting obesity for surgery, and pregnancy or breast feeding; 7. Appropriated cardio-respiratory, hepato-renal and hematological reserves; 8. Signing of the Consent Form. Exclusion Criteria:

1. Perioperative impossibility to inject the fluorescent dye indocyanine green in the cervical region due to any locorregional reason.

Gender Eligibility: Female

Minimum Age: 18 Years

Maximum Age: 70 Years

Are Healthy Volunteers Accepted: Accepts Healthy Volunteers

Investigator Details

  • Lead Sponsor
    • Professor Fernando Figueira Integral Medicine Institute
  • Provider of Information About this Clinical Study
    • Principal Investigator: Thales Paulo Batista, Consulting – Professor Fernando Figueira Integral Medicine Institute
  • Overall Official(s)
    • Thales P Batita, PhD, Principal Investigator, IMIP, Department of Surgery/Oncology

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