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Brain NeoplasmsNCT02884947

Improving Surgical Outcomes in Patients With Low Grade Gliomas Using Advanced Pre- and Intra-operative MRI

An observational study of Brain Neoplasms, run by University College, London at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This aim of this study is to improve the outcomes for patient with gliomas undergoing neurosurgery by maximising the extent of resection whilst minimising neurological morbidity. This will be achieved through the use of advanced MRI, fMRI and DTI, performed at two stages of the patients' clinical management. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Brain Neoplasms
How many people
31 participants
Where
1 siteUnited Kingdom
Study dates
May 2013to Dec 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients with intrinsic brain tumours which require surgical resection

Who may be able to join

  • Intrinsic brain tumour requiring resection
  • Aged 18 years or over

Who cannot join

  • Inability to give consent
  • Contraindication to MRI
  • No English language comprehension

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • UCL Institute of Neurology

    London, WC1N 3BG

Other trials in United Kingdom

About this study

This aim of this study is to improve the outcomes for patient with gliomas undergoing neurosurgery by maximising the extent of resection whilst minimising neurological morbidity. This will be achieved through the use of advanced MRI, fMRI and DTI, performed at two stages of the patients' clinical management.

Read the detailed description

Low grade gliomas are often located near to and infiltrate into important parts of brain which are involved with language and motor function. During surgery to remove these tumours, there is a fine balance between trying to remove as much of the tumour as possible and limiting any damage to these functionally important parts of the brain which, particularly in a young patient, may result in impairment for the rest of their life.

Functional MRI (fMRI) can be used to identify these functionally important cortical areas and diffusion tensor imaging (DTI) can be used to identify the important subcortical and deep white matter tracts connecting these regions. The use of these advanced imaging techniques performed pre-operatively to plan surgery is now commonplace however their role in guiding the actual operation itself is limited because of the occurrence of 'brain shift', this being deformation in the contour of the brain parenchyma which occurs as the tumour is resected. This can result in inaccuracies if the pre-operative advanced MRI data is being used in the neuronavigational system to guide surgery.

The main aim of this study is to determine the optimal method of providing updated, spatially accurate data on the location of these functionally important areas of the brain to the neurosurgeon intra-operatively. In this study, two different techniques will be compared. The first is the acquisition of real-time fMRI and DTI acquired intra-operatively during tumour resection. The second is to use intra-operatively acquired structural and diffusion sequences to perform non-rigid co-registration of fMRI and DTI data which has been acquired before surgery. The feasibility and then the accuracy of these two techniques will be evaluated.

The second aim of this study is to better understand the effect that the tumour and surgery have on language function as this will have important implications on the planning of the surgical approach, the counselling of patients of the possible risks of surgery and in helping to decide long term treatments. This will be achieved by performing advanced MRI scans, in particular an extensive language fMRI paradigm pre-operatively and post-operatively in patients with gliomas undergoing surgery. This will be combined with clinical testing of language function. Greater understanding of the neural plasticity in this functionally important system could allow for a greater, maximal resection.

Conditions
Brain Neoplasms
Keywords
Brain Neoplasms, Magnetic Resonance Imaging, Neurosurgery
Medical subject headings
Brain Neoplasms

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of participants with clinically applicable intra-operatively acquired fMRI data.

    The intra-operatively acquired fMRI data will be assessed by a neuroradiologist, experienced in the interpretation of fMRI data for application to neurosurgical planning. The data will be evaluated using a 3 point scoring system.

    Measured: 6 months following completion of data collection for 31 participants.

  2. Number of participants with spatially accurate co-registered pre-operative DTI data.

    The pre-operatively acquired DTI data, which has been co-registered using a non-rigid algorithm to intra-operatively acquired structural data, will be assessed for accuracy by comparison with intra-operatively acquired DTI using the Dice similarity coefficient (DSC).

    Measured: 12 months following completion of data collection for 31 participants.

  3. Change in language fMRI data for participants

    The language fMRI data for participants will be compared with language fMRI data from a

    control group to assess for both group and individual differences. This will be performed using multivariate regression in the analysis program: Statistical Parametric Mapping.

    Measured: 12 months following completion of data collection collection for 31 participants.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Aug 2016 (estimated)
  2. Study startMay 2013
  3. Primary completionDec 2015
  4. Study completionDec 2016

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02884947
Sponsor's protocol ID
12/0336
Other IDs
12/LO/1977
Status last verified
Aug 2016
First submitted
15 Aug 2016
Last updated
9 Apr 2018
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Brain Neoplasms, run by University College, London at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 9 Apr 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of participants with clinically applicable intra-operatively acquired fMRI data. (time frame: 6 months following completion of data collection for 31 participants.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Apr 2018.

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