Breast CancerPhase 3NCT00377156
Stereotactic Radiation Therapy With or Without Whole-Brain Radiation Therapy in Treating Patients With Brain Metastases
A Phase 3 study testing radiation therapy and stereotactic radiosurgery in people with Breast Cancer and Cognitive/Functional Effects, run by Alliance for Clinical Trials in Oncology at 64 sites in 2 countries.
Trial summary
RATIONALE: Stereotactic radiation therapy can send x-rays directly to the tumor and cause less damage to normal tissue. Radiation therapy uses high-energy x-rays to kill tumor cells. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Breast Cancer, Cognitive/Functional Effects, Lung Cancer
- What is being tested?
- radiation therapy and stereotactic radiosurgery
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 213 participants
- Where
- 64 sitesin 2 countries
- Study dates
- Jul 2006to 15 Dec 2019
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
DISEASE CHARACTERISTICS:
- Diagnosis of cerebral metastases meeting the following criteria:
- One to three presumed brain metastases
- Metastases must be from a histologically confirmed extracerebral site (e.g., lung, breast, prostate)
- Histologic confirmation may have been from the primary tumor site, from another metastatic site (e.g., osseous metastasis, adrenal metastasis), or from the metastatic brain lesion(s)
- Each lesion must measure less than 3.0 cm by contrast MRI of the brain performed within the past 21 days
- Lesions must not be within 5 mm of the optic chiasm or within the brainstem
- Eligibility for treatment with gamma knife or linear accelerator-based radiosurgery confirmed by a radiation oncologist
- No primary germ cell tumor, small cell carcinoma, or lymphoma
- No leptomeningeal metastases
- Hormone receptor status not specified
PATIENT CHARACTERISTICS:
- Male or female
- Menopausal status not specified
- ECOG performance status 0-2
- Not pregnant
- Negative pregnancy test
- Fertile patients must use effective contraception
- Male patients must continue to use contraception for 3 months after the completion of radiotherapy
- No pacemaker or other MRI-incompatible metal in the body
- No known allergy to gadolinium
PRIOR CONCURRENT THERAPY:
- More than 7 days since prior and no concurrent chemotherapy
- No prior cranial radiotherapy
- No prior resection of cerebral metastases
- Concurrent hormonal agents, steroids, and/or anticonvulsants allowed
Trial locations and contacts
64 sites in 2 countries.
64 sites in 2 countries
United States60 sites
Summa Center for Cancer Care at Akron City Hospital
Akron, Ohio, 44309-2090
Northwest Community Hospital
Arlington Heights, Illinois, 60005
Northside Hospital Cancer Center
Atlanta, Georgia, 30342-1611
Saint Joseph's Hospital of Atlanta
Atlanta, Georgia, 30342-1701
University of Colorado Cancer Center at UC Health Sciences Center
Aurora, Colorado, 80045
Billings Clinic - Downtown
Billings, Montana, 59107-7000
Medcenter One Hospital Cancer Care Center
Bismarck, North Dakota, 58501
Sanford Bismarck Medical Center
Bismarck, North Dakota, 58501
Saint Alphonsus Cancer Care Center at Saint Alphonsus Regional Medical Center
Boise, Idaho, 83706
Cancer Institute of Cape Girardeau, LLC
Cape Girardeau, Missouri, 63703
Carolinas Medical Center/Levine Cancer Institute
Charlotte, North Carolina, 28203
Blumenthal Cancer Center at Carolinas Medical Center
Charlotte, North Carolina, 28232-2861
Geisinger Cancer Institute at Geisinger Health
Danville, Pennsylvania, 17822-0001
Veterans Affairs Medical Center - Denver
Denver, Colorado, 80220
Henry Ford Hospital
Detroit, Michigan, 48202
Josephine Ford Cancer Center at Henry Ford Hospital
Detroit, Michigan, 48202
Seacoast Cancer Center at Wentworth - Douglass Hospital
Dover, New Hampshire, 03820
CCOP - Duluth
Duluth, Minnesota, 55805
Cape Fear Valley Medical Center Cancer Center
Fayetteville, North Carolina, 28302-2000
Northeast Georgia Medical Center
Gainesville, Georgia, 30501
University of Texas Medical Branch
Galveston, Texas, 77555
St. Vincent Hospital Regional Cancer Center
Green Bay, Wisconsin, 54307-3508
Cancer Centers of the Carolinas - Faris Road
Greenville, South Carolina, 29605
CCOP - Greenville
Greenville, South Carolina, 29615
Greenville Cancer Center of the Carolinas (CCOP)
Greenville, South Carolina, 29615
Legacy Mount Hood Medical Center
Gresham, Oregon, 97030
Mayo Clinic - Jacksonville
Jacksonville, Florida, 32224
West Michigan Cancer Center
Kalamazoo, Michigan, 49007-3731
Saint Luke's Cancer Institute at Saint Luke's Hospital
Kansas City, Missouri, 64111
Lucille P. Markey Cancer Center at University of Kentucky
Lexington, Kentucky, 40536-0093
Lowell General Hospital
Lowell, Massachusetts, 01854
Elliot Regional Cancer Center at Elliot Hospital
Manchester, New Hampshire, 03103
Memorial Medical Center
Modesto, California, 95355
Ochsner Cancer Institute at Ochsner Clinic Foundation
New Orleans, Louisiana, 70121
Kaiser Permanente - Division of Research - Oakland
Oakland, California, 94611
Immanuel Medical Center
Omaha, Nebraska, 68122
St. Joseph Hospital Regional Cancer Center - Orange
Orange, California, 92868
Florida Hospital Cancer Institute at Florida Hospital Orlando
Orlando, Florida, 32803-1273
Owensboro Mercy Medical Center
Owensboro, Kentucky, 42303
Frankford Hospital Cancer Center - Torresdale Campus
Philadelphia, Pennsylvania, 19114
Arizona Oncology-Deer Valley Center
Phoenix, Arizona, 85027
Legacy Good Samaritan Hospital & Comprehensive Cancer Center
Portland, Oregon, 97210
Legacy Good Samaritan Hospital and Medical Center
Portland, Oregon, 97210
All Saints Cancer Center at Wheaton Franciscan Healthcare
Racine, Wisconsin, 53405
Mayo Clinic Cancer Center
Rochester, Minnesota, 55905
Rohnert Park Cancer Center
Rohnert Park, California, 94928
CentraCare Clinic - River Campus
Saint Cloud, Minnesota, 56303
Cancer Care Center, Incorporated
Salem, Ohio, 44460
Kaiser Permanente Medical Center - Santa Clara Kiely Campus
Santa Clara, California, 95051
Kaiser Permanente Medical Center - Santa Rosa
Santa Rosa, California, 95403
Nancy N. and J. C. Lewis Cancer and Research Pavilion at St. Joseph's/Candler
Savannah, Georgia, 31405
Arizona Oncology Services Foundation
Scottsdale, Arizona, 85260
Somerset Medical Center
Somerville, New Jersey, 08876
J. Phillip Citta Regional Cancer Center at Community Medical Center
Toms River, New Jersey, 08755
Legacy Salmon Creek Medical Center
Vancouver, Washington, 98686
Via Christi Cancer Center at Via Christi Regional Medical Center
Wichita, Kansas, 67214
Coastal Carolina Radiation Oncology Center
Wilmington, North Carolina, 28401
Forsyth Regional Cancer Center at Forsyth Medical Center
Winston-Salem, North Carolina, 27103
Cancer Treatment Center
Wooster, Ohio, 44691
Saint Vincent Hospital at Worcester Medical Center
Worcester, Massachusetts, 01608
Canada4 sites
Tom Baker Cancer Centre - Calgary
Calgary, Alberta, T2N 4N2
Margaret and Charles Juravinski Cancer Centre
Hamilton, Ontario, L8V 5C2
CHUS-Hopital Fleurimont
Sherbrooke, Quebec, J1H 5N4
Princess Margaret Hospital
Toronto, Ontario, M5G 2M9
About this study
Official title: Phase III Randomized Trial of the Role of Whole Brain Radiation Therapy in Addition to Radiosurgery in Patients With One to Three Cerebral Metastases
RATIONALE: Stereotactic radiation therapy can send x-rays directly to the tumor and cause less damage to normal tissue. Radiation therapy uses high-energy x-rays to kill tumor cells. It is not yet known whether stereotactic radiation therapy is more effective with or without whole-brain radiation therapy in treating patients with brain metastases.
PURPOSE: This randomized phase III trial is studying stereotactic radiation therapy and whole-brain radiation therapy to see how well they work compared with stereotactic radiation therapy alone in treating patients with brain metastases.
Read the detailed description
OBJECTIVES:
Primary
- Compare the overall survival of patients with 1 to 3 cerebral metastases treated with stereotactic radiosurgery with vs without whole-brain radiotherapy.
Secondary
- Compare time to CNS (brain) failure in patients treated with these regimens.
- Compare quality of life, duration of functional independence, and long-term neurocognitive status of patients treated with these regimens.
- Compare post-treatment toxicity in these patients.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to age (18 to 59 vs 60 and over), extracranial disease (controlled for ≤ 3 months vs controlled for > 3 months), and number of brain metastases (1 vs 2 vs 3). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo stereotactic radiosurgery (SRS).
- Arm II: Patients undergo SRS as in arm I. Within 14 days, patients then undergo whole-brain radiotherapy 5 days a week for 2.5 weeks.
Quality of life, functional independence, and neurocognitive status are assessed at baseline, at the beginning of each treatment, at weeks 6 and 12, and then at 6, 9, 12, 16, 24 , 36, 48, and 60 months.
PROJECTED ACCRUAL: A total of 238 patients will be accrued for this protocol.
- Conditions
- Breast Cancer, Cognitive/Functional Effects, Lung Cancer, Metastatic Cancer, Prostate Cancer
- Being tested
- radiation therapy, stereotactic radiosurgery
- Keywords
- cognitive/functional effects, tumors metastatic to brain, stage IV breast cancer, stage IV prostate cancer, stage IV non-small cell lung cancer, male breast cancer, recurrent breast cancer, recurrent prostate cancer, recurrent non-small cell lung cancer
- Medical subject headings
- Breast Neoplasms, Lung Neoplasms, Neoplasm Metastasis, Prostatic Neoplasms, Brain Neoplasms, Carcinoma, Non-Small-Cell Lung, Breast Neoplasms, Male
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
radiation therapyRadiation
Patients undergo radiation therapy 5 days a week for 2.5 weeks
stereotactic radiosurgeryRadiation
| Study group | Role | What they receive |
|---|---|---|
| Arm I | Active comparator | Patients undergo stereotactic radiosurgery (SRS) Receives: Radiation: stereotactic radiosurgery |
| Arm II | Experimental | Patients undergo SRS as in arm I. Within 14 days, patients then undergo whole-brain radiotherapy 5 days a week for 2.5 weeks. Receives: Radiation: radiation therapy; Radiation: stereotactic radiosurgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
Neurocognitive Progression as Measured by the Number of Participants With Cognitive Deterioration by 3 Months
The primary endpoint was cognitive deterioration (progression), defined as a decline of greater than 1 SD from baseline on at least 1 of 7 cognitive tests (all tests are standardized based on published norms and transformed so that higher values represent improved cognition) at the 3-month post-SRS evaluation. The number of participants who experienced cognitive deterioration by 3 months is reported for each arm below. For primary analysis of the 3-month cognitive deterioration endpoint, the Fisher exact 2-group binomial test was used to compare the proportion of evaluable patients with 3-month cognitive deterioration between the 2 groups.
Measured: 3 months post radiosurgery
Secondary outcomes (4)
Number of Participants With Local and Distant Tumor Control up to 3 Months
Number of Participants with Local and Distant Tumor Control up to 3 months is defined as....
Measured: Up to 3 months
Overall Quality of Life, as Measured by Mean Change From Baseline [3 Month]
Quality of Life was assessed using the Functional Assessment of Cancer Therapy-Brain, for which the range is from 0 to 200 and higher scores indicate better QOL. The Quality of Life (QOL) scores were transformed to a 0- to 100-point scale (with 100 being most favorable), in which a 10-point change was considered clinically significant. Intergroup changes in QOL scores were compared using a 2-sample t test.
Measured: From Baseline to 3-Month Evaluation
Long-Term Neurocognitive Status (Long-Term Cognitive Status), as Measured by Percentage of Long-term Survivors With Cognitive Deterioration at 12 Months
Long-Term Neurocognitive Status > To ascertain in patients with one to three brain metastases whether there is better long-term neurocognitive status in patients who receive SRS alone (Arm A) compared to patients who receive SRS combined with WBRT (Arm B). Long-term survival status is defined as evaluable patients who survived for at least 12 months and had at least one cognitive assessment on or after 365 days.
Measured: From baseline to 12 months
Overall Survival
Overall survival, defined as the time from randomization until death due to any cause, was compared between the groups using stratified log-rank tests.
Measured: Up to 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Sep 2006 (estimated)
- Study startJul 2006
- Primary completionOct 2014
- Study completion15 Dec 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- More trials run by Alliance for Clinical Trials in OncologyThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 213 participants (actual)
Sponsor and investigators
- Lead sponsor
- Alliance for Clinical Trials in Oncology
- Sponsor type
- University, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Responsible party
- Sponsor
- Investigators
- Paul D. Brown, MD, Study chair, Mayo Clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00377156
- Sponsor's protocol ID
- N0574
- Other IDs
- NCCTG-N0574, ACOSOG-N0574, CDR0000499633, NCI-2009-00653
- Status last verified
- Sep 2022
- First submitted
- 13 Sep 2006
- Last updated
- 16 Sep 2022
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Publications
Churilla TM, Ballman KV, Brown PD, Twohy EL, Jaeckle K, Farace E, Cerhan JH, Anderson SK, Carrero XW, Garces YI, Barker FG 2nd, Deming R, Dixon JG, Burri SH, Chung C, Menard C, Stieber VW, Pollock BE, Galanis E, Buckner JC, Asher AL. Stereotactic Radiosurgery With or Without Whole-Brain Radiation Therapy for Limited Brain Metastases: A Secondary Analysis of the North Central Cancer Treatment Group N0574 (Alliance) Randomized Controlled Trial. Int J Radiat Oncol Biol Phys. 2017 Dec 1;99(5):1173-1178. doi: 10.1016/j.ijrobp.2017.07.045. Epub 2017 Aug 5.
PubMed 28939223Brown PD, Jaeckle K, Ballman KV, Farace E, Cerhan JH, Anderson SK, Carrero XW, Barker FG 2nd, Deming R, Burri SH, Menard C, Chung C, Stieber VW, Pollock BE, Galanis E, Buckner JC, Asher AL. Effect of Radiosurgery Alone vs Radiosurgery With Whole Brain Radiation Therapy on Cognitive Function in Patients With 1 to 3 Brain Metastases: A Randomized Clinical Trial. JAMA. 2016 Jul 26;316(4):401-409. doi: 10.1001/jama.2016.9839.
PubMed 27458945
Study at a glance
From the registry record, last updated by the sponsor on 16 Sep 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase III Randomized Trial of the Role of Whole Brain Radiation Therapy in Addition to Radiosurgery in Patients With One to Three Cerebral Metastases
- ClinicalTrials.gov ID
- NCT00377156
- Acronym / sponsor ID
- N0574
- Conditions
- Breast Cancer, Cognitive/Functional Effects, Lung Cancer, Metastatic Cancer, Prostate Cancer
- Keywords
- cognitive/functional effects, tumors metastatic to brain, stage IV breast cancer, stage IV prostate cancer, stage IV non-small cell lung cancer, male breast cancer, recurrent breast cancer, recurrent prostate cancer
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 213 participants (actual)
- Lead sponsor
- Alliance for Clinical Trials in OncologyUniversity, hospital or other
- Collaborators
- National Cancer Institute (NCI)
- Study start
- Jul 2006 (actual)
- Primary completion
- Oct 2014 (actual)
- Study completion
- 15 Dec 2019 (actual)
- First posted
- 15 Sep 2006 (estimated)
- Results
- Posted 24 Aug 2017
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
RATIONALE: Stereotactic radiation therapy can send x-rays directly to the tumor and cause less damage to normal tissue. Radiation therapy uses high-energy x-rays to kill tumor cells. It is not yet known whether stereotactic radiation therapy is more effective with or without whole-brain radiation therapy in treating patients with brain metastases.
PURPOSE: This randomized phase III trial is studying stereotactic radiation therapy and whole-brain radiation therapy to see how well they work compared with stereotactic radiation therapy alone in treating patients with brain metastases.
Detailed description
OBJECTIVES:
Primary
- Compare the overall survival of patients with 1 to 3 cerebral metastases treated with stereotactic radiosurgery with vs without whole-brain radiotherapy.
Secondary
- Compare time to CNS (brain) failure in patients treated with these regimens.
- Compare quality of life, duration of functional independence, and long-term neurocognitive status of patients treated with these regimens.
- Compare post-treatment toxicity in these patients.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to age (18 to 59 vs 60 and over), extracranial disease (controlled for ≤ 3 months vs controlled for > 3 months), and number of brain metastases (1 vs 2 vs 3). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo stereotactic radiosurgery (SRS).
- Arm II: Patients undergo SRS as in arm I. Within 14 days, patients then undergo whole-brain radiotherapy 5 days a week for 2.5 weeks.
Quality of life, functional independence, and neurocognitive status are assessed at baseline, at the beginning of each treatment, at weeks 6 and 12, and then at 6, 9, 12, 16, 24 , 36, 48, and 60 months.
PROJECTED ACCRUAL: A total of 238 patients will be accrued for this protocol.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm I | Active comparator | Radiation: stereotactic radiosurgeryPatients undergo stereotactic radiosurgery (SRS) |
| Arm II | Experimental | Radiation: radiation therapy, Radiation: stereotactic radiosurgeryPatients undergo SRS as in arm I. Within 14 days, patients then undergo whole-brain radiotherapy 5 days a week for 2.5 weeks. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| radiation therapyPatients undergo radiation therapy 5 days a week for 2.5 weeks | Radiation | Arm II |
| stereotactic radiosurgery | Radiation | Arm I, Arm II |
Primary outcome
Neurocognitive Progression as Measured by the Number of Participants With Cognitive Deterioration by 3 Months
Time frame: 3 months post radiosurgery
The primary endpoint was cognitive deterioration (progression), defined as a decline of greater than 1 SD from baseline on at least 1 of 7 cognitive tests (all tests are standardized based on published norms and transformed so that higher values represent improved cognition) at the 3-month post-SRS evaluation. The number of participants who experienced cognitive deterioration by 3 months is reported for each arm below. For primary analysis of the 3-month cognitive deterioration endpoint, the Fisher exact 2-group binomial test was used to compare the proportion of evaluable patients with 3-month cognitive deterioration between the 2 groups.
4 secondary outcomes
Number of Participants With Local and Distant Tumor Control up to 3 Months
Time frame: Up to 3 months
Overall Quality of Life, as Measured by Mean Change From Baseline [3 Month]
Time frame: From Baseline to 3-Month Evaluation
Long-Term Neurocognitive Status (Long-Term Cognitive Status), as Measured by Percentage of Long-term Survivors With Cognitive Deterioration at 12 Months
Time frame: From baseline to 12 months
Overall Survival
Time frame: Up to 5 years
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 16 Sep 2022.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 28939223Churilla TM, Ballman KV, Brown PD, Twohy EL, Jaeckle K, Farace E, Cerhan JH, Anderson SK, Carrero XW, Garces YI, Barker FG 2nd, Deming R, Dixon JG, Burri SH, Chung C, Menard C, Stieber VW, Pollock BE, Galanis E, Buckner JC, Asher AL. Stereotactic Radiosurgery With or Without Whole-Brain Radiation Therapy for Limited Brain Metastases: A Secondary Analysis of the North Central Cancer Treatment Group N0574 (Alliance) Randomized Controlled Trial. Int J Radiat Oncol Biol Phys. 2017 Dec 1;99(5):1173-1178. doi: 10.1016/j.ijrobp.2017.07.045. Epub 2017 Aug 5.
- Derived from this study: PubMed 27458945Brown PD, Jaeckle K, Ballman KV, Farace E, Cerhan JH, Anderson SK, Carrero XW, Barker FG 2nd, Deming R, Burri SH, Menard C, Chung C, Stieber VW, Pollock BE, Galanis E, Buckner JC, Asher AL. Effect of Radiosurgery Alone vs Radiosurgery With Whole Brain Radiation Therapy on Cognitive Function in Patients With 1 to 3 Brain Metastases: A Randomized Clinical Trial. JAMA. 2016 Jul 26;316(4):401-409. doi: 10.1001/jama.2016.9839.
- Data Available: Select individual patient-level data from this trial can be requested from the NCTN/NCORP Data ArchiveLink provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Paul D. Brown, MD study chair
Mayo Clinic
64 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing radiation therapy and stereotactic radiosurgery in people with Breast Cancer and Cognitive/Functional Effects, run by Alliance for Clinical Trials in Oncology at 64 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 16 Sep 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 64 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 24 Aug 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Neurocognitive Progression as Measured by the Number of Participants With Cognitive Deterioration by 3 Months (time frame: 3 months post radiosurgery). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00377156, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Sep 2022.