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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05397574
Other study ID # 307291
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date September 1, 2022
Est. completion date June 30, 2025

Study information

Verified date November 2023
Source King's College London
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this study is to obtain images of brain tumours during surgery using a new type of surgical camera. The study will assess how the information obtained from the images during surgery matches the removed tissue. Data will also be used to develop the system's key computer-processing features. This will enable real-time information to be given to the surgeon whilst they are performing the procedure and has the potential to make neurosurgery safer and more precise.


Description:

High grade gliomas (HGG) and low grade gliomas (LGG) are the commonest CNS cancers, with LGGs accounting for 6.4% of all adult cases (Ostrom 2019). Despite LGGs typically being slow-growing, over 70% of them transform into higher-grade tumours or become aggressive within a decade (Jooma 2019). Median survival for LGG patients spans 5.6 to 13.3 years (Brown 2019). Gross total resection (GTR) improves 5-year LGG survival rates from 60% to 90% when compared to subtotal resection. However, GTR (>96% tumour removal) is frequently not achieved because despite advanced techniques being available, surgeons are unable to clearly visualise the tumour and its boundaries in real-time during surgery. There is an acute need to improve outcomes for affected brain tumour patients. Patients undergoing surgery have significantly improved outcomes and increased life expectancy if complete tumour removal is achieved. However, close to 30% of patients are left with residual tumour tissue after surgery. Successful surgery indeed mandates maximal safe tumour removal: surgeons need to avoid damaging sensitive areas that undertake vital functions and preserve crucial nerves and blood vessels. Even with the most advanced current techniques, it is not possible to always identify tumour and critical structures reliably during surgery. Furthermore, because one cannot objectively measure the blood supply and oxygenation of brain tissue during surgery, it is difficult to judge if injury is being caused during the operation. To address the pressing clinical need of improved surgical precision and patient safety during low grade glioma surgery, we aim to develop an imaging system capable of quantitative wide-field fluorescence imaging for seamless real-time surgical guidance. This project aims to improve patient survival by delivering a precise assistive tool for neurosurgeons performing LGG surgery by evaluating this device in patients undergoing glioma surgery.


Recruitment information / eligibility

Status Recruiting
Enrollment 60
Est. completion date June 30, 2025
Est. primary completion date June 30, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adult patients aged 18 years and over - Patients with a diagnosis of a probable glioma (any grade), who are scheduled for elective surgery - Patients able to provide written informed consent Exclusion Criteria: - Patients under 18 years of age - Patients who have previously had brain surgery - Patients unable to provide written informed consent

Study Design


Related Conditions & MeSH terms


Locations

Country Name City State
United Kingdom King's College NHS Foundation Trust London

Sponsors (1)

Lead Sponsor Collaborator
King's College London

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Primary Correlation of qFHSI data with histological analysis of the corresponding biopsied pathological tissue To correlate ex vivo and in vivo qFHSI data with histological analysis of the corresponding biopsied glioma tissue 6-12 months
Secondary Safety of qFHSI in surgery To demonstrate safety of our intraoperative qFHSI device during glioma surgery 24-36 months
Secondary Tissue diagnosis To collect ex vivo and in vivo qFHSI data during glioma surgery for tissue analysis, algorithmic development and testing 24 months
Secondary Accuracy of biophotonics algorithm To evaluate accuracy of the computational biophotonics algorithm to determine 5-ALA-PpIX concentration in imaged tissue 24-36 months
Secondary Qualitative assessment A qualitative assessment of the impact that using the device has on surgical workflow 24-36 months
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