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Fluorescence Spectroscopy Guided Surgery

NCT02473380 · Status: COMPLETED · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 11

Last updated 2025-12-19

No results posted yet for this study

Summary

Intraoperative surgical fluorescence microscopy is a useful technique for the surgical resection of glioma. However the accuracy of this method is limited by its too low sensitivity. Fluorescence spectroscopy has the potential capacity to overcome the current limitations of conventional fluorescence guided surgery by increasing the sensitivity: in a pilot study on brain tumor biopsies, fluorescence spectroscopy was shown to measure two-peaked 5-ALA-induced protoporphyrin IX (PpIX) fluorescence emission spectrum which clearly enables to distinguish the solid component of glioblastomas from low grade gliomas and infiltrative component of glioblastomas. This innovative method could become in future a useful tool for real-time diagnosis of brain lesions (initial diagnosis or follow-up post resection to check for residual dysplasia) and real-time assessment of resections margins during surgery. However, those preliminary ex-vivo results have to be confirmed in a feasibility in-vivo study on human.

Conditions

  • Low Grade Glioma (LGG)
  • High Grade Glioma (HGG)

Interventions

DEVICE

Fluorescence spectroscopy guided surgery

A prototype of intraoperative fluorescence spectroscope will be used for fluorescence spectroscopy during a surgical procedure (open surgical approach only). The experimental probe dedicated to the spectroscopic system will be positioned against the surface of the brain, emission spectrum will be acquired and measured, and finally compared with anatomopathology exams. One specific medication will be used as contrast agent in the study: 5 amino-levulinic hydrochloride (GLIOLAN, MEDAC) orally at the dose of 20mg/kg of body weight.

Sponsors & Collaborators

  • Hospices Civils de Lyon

    lead OTHER

Principal Investigators

  • Jacques GUYOTAT, MD, PhD · Hospices Civils de Lyon

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
19 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2015-08-31
Primary Completion
2016-10-31
Completion
2016-10-31

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02473380 on ClinicalTrials.gov