Clinical Trials Logo

Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03180268
Other study ID # NRG-BN003
Secondary ID NCI-2016-01619NR
Status Recruiting
Phase Phase 3
First received
Last updated
Start date June 14, 2017
Est. completion date August 31, 2027

Study information

Verified date February 2024
Source NRG Oncology
Contact C. Leland Rogers, MD
Phone 602-406-6761
Email leland.rogers@dignityhealth.org
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This randomized phase III trial studies how well radiation therapy works compared with observation in treating patients with newly diagnosed grade II meningioma that has been completely removed by surgery. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors.


Description:

PRIMARY OBJECTIVES: I. To determine, in terms of progression-free survival (PFS), the extent of clinical benefit of the addition of adjuvant radiotherapy (RT) to gross total resection (GTR) for patients with newly diagnosed World Health Organization (WHO) grade II meningioma. SECONDARY OBJECTIVES: I. Overall survival (OS). II. Disease-specific survival (DSS). III. Toxicity (grade 3+, exclusive of expected alopecia). IV. Neurocognitive function (NCF). V. Outcomes and patient reported outcomes (PRO) measurements. VI. Adherence to protocol-specific target and normal tissue parameters. VII. Concordance measurements of central versus parent-institution pathology. VIII. Tissue microarray construction, and assessment of pHH3 mitotic index and molecular correlates to OS. OUTLINE: Patients are randomized to 1 of 2 arms after undergoing gross total resection. ARM I: Patients undergo observation. ARM II: Patients undergo radiation therapy 5 days a week over 6.5-7 weeks for a total of 33 fractions (59.4 Gy in 33 daily fractions of 1.8 Gy each). After completion of study treatment, patients are followed up at 3, 6, and 12 months, every 6 months for year 2 and 3, then yearly for 10 years.


Recruitment information / eligibility

Status Recruiting
Enrollment 148
Est. completion date August 31, 2027
Est. primary completion date June 15, 2027
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - PRIOR TO STEP 1 REGISTRATION: - The patient must have a newly diagnosed unifocal intracranial meningioma, gross totally resected, and histologically confirmed as WHO grade II based upon pathology findings at the enrolling institution; WHO grade will be assigned according to WHO 2016 criteria - Gross total resection (GTR) will be interpreted as modified Simpson grade 1-3 without gross residual dural-based or extradural tumor; GTR must be confirmed both by modified Simpson grade and by post-operative magnetic resonance imaging (MRI) findings - Step 1 registration must occur within 180 days of the initial surgery; within this 180 day interval, a second surgery is permitted in order to achieve GTR, but even with a second surgery, step 1 registration must occur within 180 days of the initial resection - For step 1 registration the operating neurosurgeon must provide the modified Simpson grade - GTR must be confirmed on post-operative imaging following the most recent surgery; submission of both pre-operative and post-operative MRIs is required for patients; if a second surgery is performed, submission of post-operative MRI is required and pre-operative MRI is required only if obtained; all sequences obtained in the pre- and post-operative MR imaging are to be submitted to National Radiology Group (NRG) Oncology for study registration; imaging subsequent to enrollment must include pre and post gadolinium contrast-enhanced three-dimensional spoiled gradient (SPGR), magnetization-prepared rapid gradient echo (MP-RAGE), or turbo field echo (TFE) MRI scan and an axial T2 fluid attenuated inversion recovery (FLAIR) sequence; to yield acceptable image quality, the gadolinium contrast-enhanced three-dimensional SPGR, MP-RAGE, or TFE axial MRI scan should use the smallest possible axial slice thickness not exceeding 1.5 mm; the post-operative MRI must be completed within sufficient time to permit step 1 registration within 180 days of the initial resection; these same conditions apply in the setting of a second surgical procedure, although if a second surgery is completed, step 1 registration must still occur with 180 days of initial surgery; computed tomography (CT) imaging is not required, but may be obtained if desired clinically, for instance to assess calcifications or hyperostosis - The patient or a legally authorized representative must provide study-specific informed consent prior to study entry - If the patient is a primary English speaker, the patient must participate in the NCF and patient reported outcomes part of the study; if the patient is a primary French or Spanish speaker, the patient must participate in the patient reported outcomes part of the study - NOTE: Central pathology review must occur between steps 1 and 2 of registration; once appropriate pathology specimens are received, central pathology review will occur within 15 days, and must confirm WHO grade II meningioma before the patient can proceed to step 2 registration and randomization - PRIOR TO STEP 2 REGISTRATION: - Histologically confirmed diagnosis of WHO grade II meningioma confirmed by central pathology review prior to step 2 registration - History/physical examination, including neurologic examination within 60 days prior to step 2 registration - Post-operative Zubrod performance status 0-1 within 60 days prior to step 2 registration - If the patient is a woman is of childbearing potential, a serum pregnancy test, obtained within 14 days prior to step 2 registration, must be negative, and, if randomized to receive radiation therapy, the woman must agree to use contraception Exclusion Criteria: - Optic nerve sheath meningioma, spinal or other extracranial meningioma, multiple meningiomas, hemangiopericytoma - Definitive evidence of metastatic meningioma - Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years (carcinoma in situ of the breast, oral cavity, cervix, melanoma in situ, or other non-invasive malignancies are permissible) - Previous radiotherapy to the scalp, cranium, brain, or skull base and radiation-induced meningiomas - Major medical illnesses or psychiatric impairments, which in the investigators opinion, will prevent administration or completion of the protocol therapy and/or preclude informed consent; these include, but are not restricted to: - Unstable angina and/or congestive heart failure requiring hospitalization at the time of step 2 registration - Transmural myocardial infarction within the last 6 months prior to step 2 registration - Acute bacterial or fungal infection requiring intravenous antibiotics at the time of step 2 registration - Chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of step 2 registration - Type II neurofibromatosis (NF2) - Ailments entailing substantial increases in sensitivity and side effect risk from radiation therapy (ataxia telangiectasia, Nijmegen breakage syndrome, and human immunodeficiency virus (HIV) with CD4 count < 200 cells/microliter); HIV testing is not required for eligibility for this protocol, and known HIV positive patients are eligible, provided they are under treatment with highly active antiretroviral therapy (HAART) and have a CD4 count >= 200 cells/microliter within 30 days prior to step 2 registration - Inability to undergo MRI with and without contrast (e.g. claustrophobia, non-MRI compatible implant or foreign body, etc) or receive gadolinium; note that patients with severe claustrophobia are permitted on this study if they are willing and able to undergo MRI with adequate sedation or anesthesia - Pregnancy and/or nursing females

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Clinical Observation
Undergo observation
Radiation:
Radiation Therapy
Undergo radiation therapy

Locations

Country Name City State
Canada Tom Baker Cancer Centre Calgary Alberta
Canada Cross Cancer Institute Edmonton Alberta
Canada Juravinski Cancer Centre at Hamilton Health Sciences Hamilton Ontario
Canada London Regional Cancer Program London Ontario
Canada CHUM - Centre Hospitalier de l'Universite de Montreal Montreal Quebec
Canada The Research Institute of the McGill University Health Centre (MUHC) Montreal Quebec
Canada Allan Blair Cancer Centre Regina Saskatchewan
Canada University Health Network-Princess Margaret Hospital Toronto Ontario
India Tata Memorial Hospital Mumbai
Japan Hiroshima University Hospital Hiroshima City
Japan Kyorin University Hospital Mitaka-shi Tokyo
Japan Saitama Medical University International Medical Center Saitama
Japan Hokkaido University Hospital Sapporo Hokkaido
Japan Keio University Shinjuku-ku Tokyo
Japan Iwate Medical University Hospital Shiwa-gun Iwate
Japan National Cancer Center Hospital Tokyo
Saudi Arabia King Faisal Specialist Hospital and Research Centre Riyadh
United States University of New Mexico Cancer Center Albuquerque New Mexico
United States American Fork Hospital / Huntsman Intermountain Cancer Center American Fork Utah
United States Kaiser Permanente-Anaheim Anaheim California
United States Saint Joseph Mercy Hospital Ann Arbor Michigan
United States University of Michigan Comprehensive Cancer Center Ann Arbor Michigan
United States Langlade Hospital and Cancer Center Antigo Wisconsin
United States Emory Proton Therapy Center Atlanta Georgia
United States Emory Saint Joseph's Hospital Atlanta Georgia
United States Emory University Hospital/Winship Cancer Institute Atlanta Georgia
United States Grady Health System Atlanta Georgia
United States Northside Hospital Atlanta Georgia
United States Piedmont Hospital Atlanta Georgia
United States Sutter Cancer Centers Radiation Oncology Services-Auburn Auburn California
United States Maryland Proton Treatment Center Baltimore Maryland
United States University of Maryland/Greenebaum Cancer Center Baltimore Maryland
United States Memorial Sloan Kettering Basking Ridge Basking Ridge New Jersey
United States MaineHealth Coastal Cancer Treatment Center Bath Maine
United States Saint Luke's University Hospital-Bethlehem Campus Bethlehem Pennsylvania
United States University of Alabama at Birmingham Cancer Center Birmingham Alabama
United States Boca Raton Regional Hospital Boca Raton Florida
United States Prisma Health Cancer Institute - Spartanburg Boiling Springs South Carolina
United States Tufts Medical Center Boston Massachusetts
United States New York-Presbyterian/Brooklyn Methodist Hospital Brooklyn New York
United States Christiana Care Health System-Concord Health Center Chadds Ford Pennsylvania
United States UNC Lineberger Comprehensive Cancer Center Chapel Hill North Carolina
United States Medical University of South Carolina Charleston South Carolina
United States Saint Joseph Mercy Chelsea Chelsea Michigan
United States Northwestern University Chicago Illinois
United States Rush University Medical Center Chicago Illinois
United States University of Illinois Chicago Illinois
United States Case Western Reserve University Cleveland Ohio
United States Cleveland Clinic Foundation Cleveland Ohio
United States Henry Ford Macomb Hospital-Clinton Township Clinton Township Michigan
United States MU Health - University Hospital/Ellis Fischel Cancer Center Columbia Missouri
United States Ohio State University Comprehensive Cancer Center Columbus Ohio
United States Memorial Sloan Kettering Commack Commack New York
United States UM Sylvester Comprehensive Cancer Center at Coral Gables Coral Gables Florida
United States Siteman Cancer Center at West County Hospital Creve Coeur Missouri
United States Northside Hospital-Forsyth Cumming Georgia
United States UT Southwestern/Simmons Cancer Center-Dallas Dallas Texas
United States Geisinger Medical Center Danville Pennsylvania
United States Decatur Memorial Hospital Decatur Illinois
United States UM Sylvester Comprehensive Cancer Center at Deerfield Beach Deerfield Beach Florida
United States Iowa Methodist Medical Center Des Moines Iowa
United States Ascension Saint John Hospital Detroit Michigan
United States Henry Ford Hospital Detroit Michigan
United States Kaiser Permanente Dublin Dublin California
United States Essentia Health Cancer Center Duluth Minnesota
United States Miller-Dwan Hospital Duluth Minnesota
United States Marshfield Medical Center-EC Cancer Center Eau Claire Wisconsin
United States Mercy Cancer Center-Elyria Elyria Ohio
United States NorthShore University HealthSystem-Evanston Hospital Evanston Illinois
United States Piedmont Fayette Hospital Fayetteville Georgia
United States The New York Hospital Medical Center of Queens Flushing New York
United States Northwestern Medicine Cancer Center Delnor Geneva Illinois
United States NorthShore University HealthSystem-Glenbrook Hospital Glenview Illinois
United States Benefis Healthcare- Sletten Cancer Institute Great Falls Montana
United States Prisma Health Cancer Institute - Eastside Greenville South Carolina
United States Prisma Health Cancer Institute - Faris Greenville South Carolina
United States Prisma Health Cancer Institute - Greer Greer South Carolina
United States Legacy Mount Hood Medical Center Gresham Oregon
United States Memorial Sloan Kettering Westchester Harrison New York
United States Hartford Hospital Hartford Connecticut
United States NorthShore University HealthSystem-Highland Park Hospital Highland Park Illinois
United States Queen's Medical Center Honolulu Hawaii
United States The Cancer Center of Hawaii-Liliha Honolulu Hawaii
United States M D Anderson Cancer Center Houston Texas
United States Indiana University/Melvin and Bren Simon Cancer Center Indianapolis Indiana
United States IU Health Methodist Hospital Indianapolis Indiana
United States University of Iowa/Holden Comprehensive Cancer Center Iowa City Iowa
United States University of Mississippi Medical Center Jackson Mississippi
United States Baptist MD Anderson Cancer Center Jacksonville Florida
United States Kalispell Regional Medical Center Kalispell Montana
United States University of Kansas Cancer Center Kansas City Kansas
United States Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center Lebanon New Hampshire
United States Geisinger Medical Oncology-Lewisburg Lewisburg Pennsylvania
United States Lewistown Hospital Lewistown Pennsylvania
United States University of Kentucky/Markey Cancer Center Lexington Kentucky
United States Trinity Health Saint Mary Mercy Livonia Hospital Livonia Michigan
United States Logan Regional Hospital Logan Utah
United States Kaiser Permanente Los Angeles Medical Center Los Angeles California
United States Los Angeles General Medical Center Los Angeles California
United States USC / Norris Comprehensive Cancer Center Los Angeles California
United States University of Wisconsin Carbone Cancer Center Madison Wisconsin
United States Marshfield Medical Center-Marshfield Marshfield Wisconsin
United States Loyola University Medical Center Maywood Illinois
United States Froedtert Menomonee Falls Hospital Menomonee Falls Wisconsin
United States UH Seidman Cancer Center at Lake Health Mentor Campus Mentor Ohio
United States Miami Cancer Institute Miami Florida
United States University of Miami Miller School of Medicine-Sylvester Cancer Center Miami Florida
United States Memorial Sloan Kettering Monmouth Middletown New Jersey
United States Medical College of Wisconsin Milwaukee Wisconsin
United States Abbott-Northwestern Hospital Minneapolis Minnesota
United States Marshfield Clinic-Minocqua Center Minocqua Wisconsin
United States Memorial Medical Center Modesto California
United States Memorial Sloan Kettering Bergen Montvale New Jersey
United States Intermountain Medical Center Murray Utah
United States Vanderbilt University/Ingram Cancer Center Nashville Tennessee
United States Rutgers Cancer Institute of New Jersey New Brunswick New Jersey
United States Yale University New Haven Connecticut
United States Memorial Sloan Kettering Cancer Center New York New York
United States NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center New York New York
United States NYP/Weill Cornell Medical Center New York New York
United States Christiana Care Health System-Christiana Hospital Newark Delaware
United States Helen F Graham Cancer Center Newark Delaware
United States Rutgers New Jersey Medical School Newark New Jersey
United States Piedmont Newnan Hospital Newnan Georgia
United States Drexel Town Square Health Center Oak Creek Wisconsin
United States Kaiser Permanente Oakland-Broadway Oakland California
United States McKay-Dee Hospital Center Ogden Utah
United States University of Oklahoma Health Sciences Center Oklahoma City Oklahoma
United States University of Nebraska Medical Center Omaha Nebraska
United States Kaiser Permanente-Ontario Ontario California
United States UC Irvine Health/Chao Family Comprehensive Cancer Center Orange California
United States AdventHealth East Orlando Orlando Florida
United States AdventHealth Orlando Orlando Florida
United States University of Kansas Cancer Center-Overland Park Overland Park Kansas
United States Stanford Cancer Institute Palo Alto Palo Alto California
United States Capital Health Medical Center-Hopewell Pennington New Jersey
United States Fox Chase Cancer Center Philadelphia Pennsylvania
United States Temple University Hospital Philadelphia Pennsylvania
United States Thomas Jefferson University Hospital Philadelphia Pennsylvania
United States Mayo Clinic Hospital in Arizona Phoenix Arizona
United States Saint Joseph's Hospital and Medical Center Phoenix Arizona
United States Legacy Good Samaritan Hospital and Medical Center Portland Oregon
United States Maine Medical Center-Bramhall Campus Portland Maine
United States Geisinger Cancer Services-Pottsville Pottsville Pennsylvania
United States Utah Valley Regional Medical Center Provo Utah
United States Kaiser Permanente-Rancho Cordova Cancer Center Rancho Cordova California
United States Beebe Health Campus Rehoboth Beach Delaware
United States Marshfield Medical Center-Rice Lake Rice Lake Wisconsin
United States Virginia Commonwealth University/Massey Cancer Center Richmond Virginia
United States Riverton Hospital Riverton Utah
United States Mayo Clinic in Rochester Rochester Minnesota
United States University of Rochester Rochester New York
United States Rohnert Park Cancer Center Rohnert Park California
United States Sutter Cancer Centers Radiation Oncology Services-Roseville Roseville California
United States The Permanente Medical Group-Roseville Radiation Oncology Roseville California
United States South Sacramento Cancer Center Sacramento California
United States Sutter Medical Center Sacramento Sacramento California
United States Ascension Saint Mary's Hospital Saginaw Michigan
United States Norris Cotton Cancer Center-North Saint Johnsbury Vermont
United States Siteman Cancer Center-South County Saint Louis Missouri
United States Washington University School of Medicine Saint Louis Missouri
United States Park Nicollet Clinic - Saint Louis Park Saint Louis Park Minnesota
United States Regions Hospital Saint Paul Minnesota
United States Siteman Cancer Center at Saint Peters Hospital Saint Peters Missouri
United States LDS Hospital Salt Lake City Utah
United States University of Texas Health Science Center at San Antonio San Antonio Texas
United States MaineHealth Cancer Care Center of York County Sanford Maine
United States Kaiser Permanente Medical Center - Santa Clara Santa Clara California
United States Maine Medical Center- Scarborough Campus Scarborough Maine
United States Mayo Clinic in Arizona Scottsdale Arizona
United States TidalHealth Nanticoke / Allen Cancer Center Seaford Delaware
United States University of Washington Medical Center - Montlake Seattle Washington
United States Prisma Health Cancer Institute - Seneca Seneca South Carolina
United States LSU Health Sciences Center at Shreveport Shreveport Louisiana
United States ProCure Proton Therapy Center-Somerset Somerset New Jersey
United States Robert Wood Johnson University Hospital Somerset Somerville New Jersey
United States Kaiser Permanente Cancer Treatment Center South San Francisco California
United States Ascension Saint Michael's Hospital Stevens Point Wisconsin
United States Marshfield Medical Center-River Region at Stevens Point Stevens Point Wisconsin
United States Piedmont Henry Hospital Stockbridge Georgia
United States ProMedica Flower Hospital Sylvania Ohio
United States Moffitt Cancer Center Tampa Florida
United States Banner University Medical Center - Tucson Tucson Arizona
United States University of Arizona Cancer Center-North Campus Tucson Arizona
United States University of Arizona Cancer Center-Orange Grove Campus Tucson Arizona
United States Memorial Sloan Kettering Nassau Uniondale New York
United States Westchester Medical Center Valhalla New York
United States Sutter Solano Medical Center/Cancer Center Vallejo California
United States Legacy Salmon Creek Hospital Vancouver Washington
United States Saint John Macomb-Oakland Hospital Warren Michigan
United States Northwestern Medicine Cancer Center Warrenville Warrenville Illinois
United States Aspirus Regional Cancer Center Wausau Wisconsin
United States Henry Ford West Bloomfield Hospital West Bloomfield Michigan
United States UHHS-Westlake Medical Center Westlake Ohio
United States Diagnostic and Treatment Center Weston Wisconsin
United States Geisinger Wyoming Valley/Henry Cancer Center Wilkes-Barre Pennsylvania
United States Aspirus Cancer Care - Wisconsin Rapids Wisconsin Rapids Wisconsin
United States Lankenau Medical Center Wynnewood Pennsylvania

Sponsors (2)

Lead Sponsor Collaborator
NRG Oncology National Cancer Institute (NCI)

Countries where clinical trial is conducted

United States,  Canada,  India,  Japan,  Saudi Arabia, 

Outcome

Type Measure Description Time frame Safety issue
Primary Progression-Free Survival (PFS) Kaplan-Meier method will be used to calculate the PFS rates for each of the two arms (Kaplan 1958). Hazard ratio (HR) on the treatment effect will be calculated using the Cox proportional hazard model (Cox 1972). A one-sided log-rank test will be used to test the difference in PFS between the two arms (Peto 1972). From randomization to the first documented disease progression, or death due to any cause, whichever comes first, assessed up to 10 years.
Secondary Overall Survival (OS) Kaplan-Meier method will be used to calculate the OS rates for each of the two arms (Kaplan 1958). Hazard ratio (HR) on the treatment effect will be calculated using the Cox proportional hazard model (Cox 1972). A one-sided log-rank test will be used to test the difference in OS between the two arms (Peto 1972). Cox proportional hazard model will be used to determine the adjusted treatment effect on OS, with patient pretreatment characteristics as covariates. From randomization to death due to any cause, assessed up to 10 years
Secondary 5 Year Overall Survival (OS) Will be calculated based on the Kaplan-Meier curve. At 5 years after randomization
Secondary Disease-Specific Survival (DSS) Will be calculated using the cumulative incidence function for each arm. The HR for the treatment effect on DSS will be calculated using Gray's method under the competing risk approach, with death due to non-disease related cause treated as the competing risk (Gray 1988). Multivariate analysis on DSS will be performed using the Fine-Gray model, with patient pretreatment characteristics as covariates (Fine 1999). From randomization to disease-related death, assessed up to 10 years
Secondary 3 Year Disease-Specific Survival (DSS) Will be calculated using the cumulative incidence function for each arm. At 3 years after randomization
Secondary 5 Year Disease-Specific Survival (DSS) Will be calculated using the cumulative incidence function for each arm. At 5 years after randomization
Secondary 3 Year Progression-Free Survival (PFS) Will be calculated based on the Kaplan-Meier curve. From randomization to the first documented disease progression, or death due to any cause, whichever comes first, assessed at 3 years after randomization.
Secondary 5 Year Progression-Free Survival (PFS) Will be calculated based on the Kaplan-Meier curve. From randomization to the first documented disease progression, or death due to any cause, whichever comes first, assessed up to 5 years after randomization.
Secondary Neurocognitive Function (NCF) Longitudinal analysis will be performed to compare NCF over time between the 2 arms, using the NCF Clinical Trial Battery (CTB) composite score. Early change from baseline in CTB composite score will be evaluated and compared between the 2 arms using 2-sample t tests. Baseline up to 60 months after randomization
Secondary Patient Reported Outcomes (PRO) as assessed by MDASI-BT Longitudinal analysis will be performed to compare symptom burden over time between the 2 arms, using the MDASI-BT. Early change from baseline in symptom burden will be evaluated and compared between the 2 arms using 2-sample t tests. Baseline up to 60 months after randomization
Secondary Assessment of pHH3 mitotic index The Kaplan-Meier method will be used to estimate the PFS and OS rates by pHH3 category. The HRs on the effect of pHH3 on PFS and OS, respectively will be calculated using the Cox proportional hazard model and will be tested using the log-rank test. Multivariate analyses will be conducted with patient pretreatment characteristics, such as age and Simpson resection grade, included as covariates. Up to 10 years after randomization
Secondary Incidence of adverse events as measured by the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 4 (exclusive of alopecia) The number of adverse events will be measured using the CTCAE, version 4 Up to 3 years after randomization
See also
  Status Clinical Trial Phase
Terminated NCT00972335 - Trial of the Combination of Bevacizumab and Everolimus in Patients With Refractory, Progressive Intracranial Meningioma Phase 2
Recruiting NCT02523014 - Vismodegib, FAK Inhibitor GSK2256098, Capivasertib, and Abemaciclib in Treating Patients With Progressive Meningiomas Phase 2
Active, not recruiting NCT02974127 - Multisession Radiosurgery in Large Meningiomas
Not yet recruiting NCT05832099 - Cognition-preserving Brain Irradiation for Treating Patients With Intracranial Meningioma in the Era of Modern Radiotherapeutic Techniques Including Proton Beam Therapy - a Prospective Study Focusing on Radiological Outcomes and Neurocognitive Endpoints
Not yet recruiting NCT02084927 - Hyperbaric Oxygen Therapy Can Improve Neurological State Post Meningioma Removal Surgery Phase 1