Cognitive Outcome After Gamma Knife Radiosurgery in Patients With Brain Metastases (CAR-Study A)
Study Details
Study Description
Brief Summary
Stereotactic radiosurgery (SRS) is increasingly applied in patients with brain metastases (BM) and is expected to have less adverse effects on cognitive functioning than Whole Brain Radiation Therapy (WBRT). Because cognitive functions are essential for daily functioning, and may affect therapy compliance and quality of life in general, a full understanding of cognitive functioning in patients with BM after SRS is essential.
CAR-Study A is a prospective study to evaluate cognitive functioning in patients with 1-10 BM accepted for treatment with Gamma Knife radiosurgery (GKRS).
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
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Detailed Description
CAR-Study A is a prospective study to evaluate cognitive functioning after GKRS in patients with 1-10 newly diagnosed brain metastases on a triple dose gadolinium-enhanced MRI-scan. Neuropsychological assessment will be performed at baseline and at 3, 6, 9, 12, 15, and 21 months after treatment. Follow-up assessments will be combined with 3-monthly MRI-scans.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Stereotactic radiosurgery (SRS) Gamma Knife radiosurgery (GKRS) |
Radiation: Gamma Knife radiosurgery
Gamma Knife radiosurgery will be performed with a Leksell Gamma Knife® Icon, Elekta Instruments, AB. Depending upon the tumor volume, a dose of 18-25 Gy will be prescribed with 99-100% coverage of the target
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Outcome Measures
Primary Outcome Measures
- Change in verbal memory [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Verbal memory is measured with the Hopkins Verbal Learning Test-Revised (HVLT-R)
- Change in cognitive flexibility [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Cognitive flexibility is measured with the Trail Making Test B (TMT B)
- Change in word fluency [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Word Fluency is measured with the Controlled Oral Word Association (COWA)
- Change in working memory [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Working memory is measured with the Wechsler Adult Intelligence Scale - Digit Span
- Change in processing speed [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Processing speed is measured with the Wechsler Adult Intelligence Scale - Digit Symbol
- Change in motor dexterity [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Motor dexterity is measured with the Grooved Pegboard (GP)
Secondary Outcome Measures
- Health Related Quality Of Life (HRQOL) [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
The Functional Assessment of Cancer Therapy-Brain (FACT-Br) is used to measure HRQOL.
- Fatigue [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS]
Fatigue is measured with the Multidimensional Fatigue Inventory (MFI).
- Depression and anxiety [Baseline and 3, 6, 9, 12, 15, and 21 months post GKRS.]
Depression and anxiety are measured with the Hospital Anxiety and Depression Scale (HADS).
- Median Overall Survival [12 months after GKRS]
Overall survival is defined as the time in months from the start of GKRS to the date of death or last contact if alive. Kaplan-Meier methods are used to estimate overall survival.
- Local tumor control [12 months after GKRS]
Local brain tumor control of the initial GKRS-treated lesions is defined as a complete, partial, or stable response, or less than a 25% increase in diameter on contrast-enhanced MRI follow-up and not requiring resection. Any initial treated lesions increased by more than 25% in diameter on contrast-enhanced MRI or required resection will be considered a local failure.
- Distant tumor control [12 months after GKRS]
Distant brain tumor control is defined as the absence of any new brain metastases, distinct from the initial GKRS-treated lesion(s), on follow-up MRI. The appearance of one or more new lesions in the brain by contrast-enhanced follow-up MRI is considered distant failure.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Histologically proven malignant cancer
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1-10 newly diagnosed brain metastases on a triple dose gadolinium-enhanced MRI-scan
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Maximum total tumor volume 30 cm3
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Lesion ≥ 3 mm from the optic apparatus
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Age ≥ 18 years
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Karnofsky Performance Status (KPS) ≥ 70
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Anticipated survival > 3 months
Exclusion Criteria:
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No prior histologic confirmation of malignancy
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Primary brain tumor
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A second active primary tumor
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Small cell lung cancer
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Lymphoma
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Leukemia
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Meningeal disease
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Progressive, symptomatic systemic disease without further treatment options
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Prior brain radiation
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Prior surgical resection of brain metastases
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Additional history of a significant neurological or psychiatric disorder
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Participation in a concurrent study in which neuropsychological testing and/or health-related QOL assessments are involved
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Contra indications to MRI or gadolinium contrast
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Underlying medical condition precluding adequate follow-up
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Lack of basic proficiency in Dutch
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IQ below 85
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Severe aphasia
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Paralysis grade 0-3 according to MRC scale (Medical Research Council)
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Gamma Knife Center Tilburg, Elisabeth-TweeSteden Hospital | Tilburg | Noord-Brabant | Netherlands | 5022 GC |
Sponsors and Collaborators
- Elisabeth-TweeSteden Ziekenhuis
- Tilburg University
- ZonMw: The Netherlands Organisation for Health Research and Development
Investigators
- Principal Investigator: Patrick EJ Hanssens, MD, Gamma Knife Center Tilburg, Elisabeth-TweeSteden Hospital, The Netherlands
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 842003008