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Improving Ultrasound Images in Brain Tumor Surgery With the Use of Brain Mimicking Fluid

Study Purpose

Prognosis in patients with glioblastomas (the most aggressive high-grade glioma) remains unfavourable. Tools for improving brain tumor surgery, in particular for gliomas, are increasing. There seems to be an agreement that achieving extensive resections, when done safely without jeopardizing neurological function, improves survival. Ultrasound is currently used as a tool for providing 2D or 3D images for the purpose of tumor localization and resection control. For the use in resection control the resection cavity is filled with saline to provide acoustic coupling between the ultrasound transducer and tissue. However, attenuation of acoustic waves is very low in saline compared to the brain and this difference in attenuation is the cause of artifacts that may severely degrade the ultrasound images. Such artifacts are seen as high-intensity signal at the resection cavity wall and beyond, potentially masking small tumor remnants and generally making the interpretation of images more difficult. This research group has developed an acoustic fluid intended for use in the resection cavity instead of saline. Tests in laboratory measurements have shown that the fluid reduces artifacts and has the potential to enhance ultrasound image quality in brain tumor surgery. The investigators expect that the acoustic fluid will make it easier to detect small tumor remnants near the end of an operation, thus increasing success of glioma surgery. The purpose of this study is to test the fluid during surgery for histopathologically proven glioblastoma to assess safety and efficacy.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

No
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Interventional
Eligible Ages 18 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

  • - A glioblastoma is suspected when there is a solitary brain tumour with ring-like contrast enhancement and oedema with no recent history (last 3 years) of primary tumour elsewhere.
  • - In cases where histopathology is not known from previous biopsy or resection (i.e. diagnosis is suspected based on MRI findings and not from previous surgery) a tissue sample for frozen section is necessary.
The fluid will only be used in cases where glioblastoma is suggested from this preliminary histopathological assessment.

Exclusion Criteria:

  • - Intended biopsy only (meaning: cases not suitable for resection) - Other entities than glioblastoma is suspected.
  • - Allergy to diary products and marine products.
  • - Hypersensitvity to egg protein.
  • - Hypersensitivity to soya or peanut protein.
- Hypersensitvity to glycerol

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT02105233
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Phase 1
Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

St. Olavs Hospital
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Geir BrĂ¥then, phd md
Principal Investigator Affiliation St. Olavs Hospital
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other
Overall Status Completed
Countries Norway
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Brain Neoplasms, Glioma
Arms & Interventions

Arms

Experimental: BMG

brain mimicking fluid

Interventions

Biological: - brain mimicking fluid

filled into the operation cavity during surgery for glioblastoma

Contact a Trial Team

If you are interested in learning more about this trial, find the trial site nearest to your location and contact the site coordinator via email or phone. We also strongly recommend that you consult with your healthcare provider about the trials that may interest you and refer to our terms of service below.

International Sites

Trondheim, Norway

Status

Address

Department of Neurosurgery, St Olavs Hospital

Trondheim, ,