- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03071913
Blood Brain Barrier Differences in Patients With Brain Tumors Undergoing Surgery
Pilot Study to Assess Heterogeneity of the Blood Brain Barrier in Patients With CNS Malignancy
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
PRIMARY OBJECTIVE:
I. To define the heterogeneity of blood brain barrier (BBB) permeability by assessing drug distribution in a population of patients with central nervous system (CNS) malignancy.
SECONDARY OBJECTIVE:
I. Establish correlation of BBB permeability with radiographic appearance for study patients.
CORRELATIVE RESEARCH OBJECTIVE:
I. To utilize tumor samples to investigate mechanisms for BBB heterogeneity.
OUTLINE:
As part of pre-operative standard of care, patients receive levetiracetam by injection and cefazolin by injection. Patients are also offered lorazepam in the pre-operative area. At the time of surgery, patients undergo approximately 2 tissue biopsies from 3-4 tumor locations. This tissue is removed as part of the planned surgery, but it is also tested for research purposes. During surgery, a blood sample is collected every 20-30 minutes beginning at the time of skin incision until all of the research tumor samples have been removed. A minimum of 3 blood samples are collected up to a maximum of 12.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Contact
- Name: Clinical Trials Referral Office
- Phone Number: 855-776-0015
- Email: mayocliniccancerstudies@mayo.edu
Study Locations
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-
Minnesota
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Rochester, Minnesota, United States, 55905
- Mayo Clinic in Rochester
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Age >= 18 years
- Clinical and radiographic evidence suggesting CNS malignancy
- Suspected newly diagnosed, local, or intracranial recurrence of primary brain tumor OR previously untreated or treated brain metastasis
- Willing to undergo a neurosurgical resection of CNS lesion at Mayo Clinic Rochester
- Able to have magnetic resonance imaging (MRI) imaging with gadolinium contrast (e.g. no cardiac pacemaker, defibrillator, renal failure)
- Females of childbearing potential must have a negative pregnancy test done =< 14 days prior to registration
- Provide written informed consent
- Willing to provide tissue and blood samples for research purposes
- Patients having a study-specific surgical planning MRI only: Creatinine (estimated glomerular filtration rate [eGFR] >= 30) (obtained =< 30 days prior to registration)
Exclusion Criteria:
- Vulnerable populations: pregnant women, prisoners, mentally handicapped
- Unable to undergo a biopsy of CNS lesion
- Documented drug allergy to cefazolin or levetiracetam, or other contraindication to use these drugs in the pre-operative setting (e.g., patient is already on another anti-seizure medication which precludes the clinical indication for pre-operative levetiracetam)
- Patients who are unable to swallow tablets if study drug is administered by mouth
- Patients who are at risk for impaired absorption of oral medication if study drug is administered by mouth; Note: This includes but not limited to, refractory vomiting, gastric resection/bypass, and duodenal/jejunal resection
- Pregnant or nursing women; Note: Pregnant women are excluded from this study because of the potential for teratogenic or abortifacient effects with chemotherapy; there is also a potential risk for adverse events (AEs) in nursing infants secondary to treatment of the mother with these drugs, so breastfeeding should be discontinued for the duration of the study
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Observational (biospecimen collection)
As part of pre-operative standard of care, patients receive levetiracetam by injection and cefazolin by injection.
Patients are also offered lorazepam in the pre-operative area.
At the time of surgery, patients undergo approximately 2 tissue biopsies from 3-4 tumor locations.
This tissue is removed as part of the planned surgery, but it is also tested for research purposes.
During surgery, a blood sample is collected every 20-30 minutes beginning at the time of skin incision until all of the research tumor samples have been removed.
A minimum of 3 blood samples are collected up to a maximum of 12.
|
Correlative studies
Undergo collection of tissue and blood samples
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Blood brain barrier permeability as measured by the ratio of drugs in blood and tissue samples taken during surgery
Time Frame: At the time of surgery
|
The ratio of cefazolin and levetiracetam (or lorazepam) and gadolinium in blood taken every 20-30 minutes during surgery will be correlated with the tissue samples.
Inter- and intra-subject variability over all patients will be estimated, within specific imaging features between patients, and within open biopsy specimens.
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At the time of surgery
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Radiographic appearance at each tissue sample location
Time Frame: At the time of surgery
|
The results of the tissue samples will be compared with the radiographic appearance at each tissue sample location.
This will be primarily descriptive in nature.
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At the time of surgery
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Jann N. Sarkaria, M.D., Mayo Clinic
Publications and helpful links
Helpful Links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- MC1671 (Mayo Clinic in Rochester)
- P30CA015083 (U.S. NIH Grant/Contract)
- NCI-2017-00299 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
- 16-007782 (Other Identifier: Mayo Clinic Institutional Review Board)
- U54CA210180 (U.S. NIH Grant/Contract)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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