Sonobiopsy for Noninvasive and Sensitive Detection of Glioblastoma

December 1, 2023 updated by: Washington University School of Medicine
This clinical study to evaluate sonobiopsy is significant because sonobiopsy will fundamentally enhance the clinician's insight into the molecular features of an intracranial lesion to tailor treatment approaches and optimize outcomes. In addition to the standard diagnostics of anatomic imaging and surgical histology, sonobiopsy has the potential to become the third pillar for brain tumor management by radically advancing the ability to easily and regularly acquire tumor genetic and molecular signatures. This enhanced capability will have a dramatic impact on patient survival and quality of life.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Missouri
      • Saint Louis, Missouri, United States, 63110
        • Recruiting
        • Washington University School of Medicine
        • Sub-Investigator:
          • Eric Leuthardt, M.D.
        • Sub-Investigator:
          • Hong Chen, Ph.D.
        • Contact:
        • Principal Investigator:
          • Albert Kim, M.D.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Must be newly diagnosed with a lesion in the brain with imaging characteristics consistent with glioblastoma multiforme. Scan must have occurred no more than 28 days prior to enrollment.
  • Lesion must be > 3 cm in maximal dimension on MRI.
  • Lesion must be in the supratentorial space within 5 cm of the cortical surface.
  • Lesion must be gadolinium enhancing.
  • Low grade tumors and metastatic tumors
  • Recurrent brain tumors and/or radiation necrosis
  • Must be planning to undergo surgical resection of the tumor.
  • Must be at least 18 years old.
  • Patients with recurrent GBM who are planning to undergo surgical resection or laser ablation of the recurrent tumor. Recurrence must be confirmed on MRI performed no more than 28 days prior to enrollment.

Exclusion Criteria:

  • Contraindication to MRI.
  • Previous cranial surgery.
  • Previous history of cancer and/or cancer treatments.
  • Coagulopathy within 14 days of enrollment defined as PT/PTT outside of normal parameters and platelets < 100,000/mcL.
  • Physical skull defect of any kind.
  • Ferrous material in the scalp or skull.
  • Scalp or skin disease that limits contact with the ultrasound probe.
  • Enrolled in another clinical trial where intervention is administered prior to surgery.
  • Known hypersensitivity to polyethylene glycol.
  • Known unstable cardiopulmonary condition (e.g. acute myocardial infarction, acute coronary artery syndromes, worsening or unstable congestive heart failure, serious ventricular arrhythmias).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Sonobiopsy
  • Once enrolled, participants would be prepared for standard of care surgery.
  • The sonobiopsy involves the standard procedure for a biopsy, but the biopsy needle is replaced with a customized ultrasound probe, a standard ultrasound contrast agent (microbubbles) is injected intravenously, and the probe is turned on for 3 minutes for the sonobiopsy. Then the planned surgery to remove the tumor will occur.
  • An additional brief MRI scan will be obtained using the intraoperative MRI to define imaging changes (if any) that occur as a result of the sonobiopsy procedure. The imaging protocols will include a 3D T2-weighted (T2w) scan, and 3D contrast T1-weighted (T1w) with dynamic contrast enhancement and if time allows T2* sequence.
  • Blood will be collected at several time points.
  • A small skin biopsy or another blood draw will be drawn for comparison against the genetic mutations shown in the tumor.
  • The blood, tumor, and skin (if applicable) will undergo genetic analysis.
Ultrasound combined with microbubbles to facilitate sampling of biomarkers from brain tumors via blood-based liquid biopsy
No more than 10 minutes prior to ultrasound sonication, 10 minutes after ultrasound sonication, 30 minutes after ultrasound sonication (optional at the discretion of the PI), and 60 minutes after ultrasound sonication (optional at the discretion of the PI)
Cancer Personalized Profiling by deep Sequencing will be used to compare the frequency of tumor-specific variants in the blood before and after sonobiopsy.
Being used off-label in this trial
Other Names:
  • Definity® microbubbles

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of sonobiopsy as measured by change in ctDNA level
Time Frame: Day 1
The feasibility of sonobiopsy will be demonstrated by an increase in the amount of ctDNA in the blood samples acquired post than prior sonobiopsy in at least 50% of the patients.
Day 1
Number of matched mutations between the post-sonobiopsy sample and the tumor tissue sample
Time Frame: Day 1
The agreement of the post-sonobiopsy sample mutation detected in the blood with a variant identified in the tumor tissue will be compared using a kappa statistic.
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Albert Kim, M.D., Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 18, 2022

Primary Completion (Estimated)

April 30, 2025

Study Completion (Estimated)

April 30, 2025

Study Registration Dates

First Submitted

February 11, 2022

First Submitted That Met QC Criteria

March 4, 2022

First Posted (Actual)

March 16, 2022

Study Record Updates

Last Update Posted (Actual)

December 8, 2023

Last Update Submitted That Met QC Criteria

December 1, 2023

Last Verified

December 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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