Fluorescence-guided Surgery for Low- and High-grade Gliomas
BALANCE
Barrow 5-ALA Intraoperative Confocal Evaluation Trial
1 other identifier
interventional
127
1 country
1
Brief Summary
Gliomas are the most common primary brain tumor, yet remain a challenge to effectively treat. Mounting evidence suggests that survival improves with greater tumor removal, yet being able do a complete removal can be difficult due to the tumor's infiltrating nature. 5-aminolevulinic acid (5-ALA) is a natural compound that, when patients take it by mouth 3 hours before surgery, is selectively taken up by glioma cells and causes a red/pink fluorescence (glow) under a blue light that allows tumor margins to be seen during the course of surgery. While this compound is used as a standard-of-care agent in Europe, it remains under testing by the Food and Drug Administration (FDA). A recent clinical trial in Germany, however, has demonstrated a significant improvement in the rate of complete resection for certain brain tumors (65% vs. 34%). The Barrow 5-ALA Intraoperative Confocal (BALANCE) Trial will measure the effect of 5-ALA on the amount of glioma tumor removal. To improve the usefulness of 5-ALA, a new special microscope fitted with a blue light, will be used to magnify microscopic fluorescence at the tumor margins. The investigators' hypothesis is that 5-ALA fluorescence with the use of the special microscope during surgery will greatly lower the amount of tumor left behind.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_3
Started Nov 2010
Longer than P75 for phase_3
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 1, 2010
CompletedFirst Submitted
Initial submission to the registry
December 22, 2011
CompletedFirst Posted
Study publicly available on registry
December 30, 2011
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2018
CompletedNovember 24, 2023
January 1, 2017
7.2 years
December 22, 2011
November 21, 2023
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Volumetric extent of resection
Volumetric analysis of MRI contrast T1-weighted images (for low grade gliomas) will be compared to the preoperative sequences to calculate the volume of residual disease. Slice-by-slice assessment of pre- and postoperative tumor volume will be quantified by sequentially measuring the area of tumor on each slice and then integrating the combined measurements. This methodology has been previously reported (Sanai et al., Journal of Neurosurgery, 2010; Sanai et al, The New England Journal of Medicine, 2008)
Change in MRI from pre-operative to within 48 hours post-operative
Secondary Outcomes (3)
Overall Survival rate(OS)
Time from randomization until date of death assessed up to 48 months
Progression-free survival rate (PFS)
Time from randomization until first date of progression assessed up to 48 months
National Institute of Health Stroke Scale (NIHSS)
Change in score from pre-operative at post-operative, 6, 12, 18 and 24 months
Study Arms (2)
5-ALA/Gliolan® /5-Aminolevulinic acid
EXPERIMENTALWithin 3 hours prior to surgery, patient will orally ingest \[or be given via Nasogastric (NG), Orogastric (OG), or Gastric tube (G-tube)\] 5-ALA/Gliolan®/5-Aminolevulinic acid mixed with sterile water (20mg/kg)
Placebo - ascorbic acid
PLACEBO COMPARATORWithin 3 hours prior to surgery, patient will orally ingest \[or be given via Nasogastric (NG), Orogastric (OG), or Gastric tube (G-tube)\] 1.5 Gm. placebo - ascorbic acid in 50 ml sterile water.
Interventions
Following informed consent, within 3 hours prior to surgery, patient will orally ingest \[or be given via Nasogastric (NG), Orogastric (OG), or Gastric tube (G-tube)\] either (1) 5-ALA/Gliolan® mixed with sterile water (20mg/kg)
Within 3 hours prior to surgery, patient will orally ingest \[or be given via Nasogastric (NG), Orogastric (OG), or Gastric tube (G-tube)\] 1.5 Gm. placebo - ascorbic acid in 50 ml sterile water.
Eligibility Criteria
You may qualify if:
- Presumed newly-diagnosed supratentorial glioma (previous biopsy-only/no adjuvant therapy are eligible for randomization)
- Age \> 18 years
- Normal bone marrow function (WBC \> 3000, Platelets \> 100,000)
You may not qualify if:
- Infratentorial tumors
- Pregnancy
- Hypersensitivity to 5-aminolevulinic acid hydrochloride or porphyrins
- History of photosensitivity, porphyria, or exfoliative dermatitis
- Hepatic dysfunction in the last 12 months (defined by AST, ALT, ALP, bilirubin \> 2.5 x normal)
- Serum creatinine \> 180 µmol/L
- Estimated Glomerular Filtration Rate (eGFR) \< 60 ml/min/1.73m2
- Inability to undergo MRI scan with contrast
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
St. Joseph's Hospital and Medical Center/Barrow Neurological Institute
Phoenix, Arizona, 85013, United States
Related Publications (1)
Sanai N, Snyder LA, Honea NJ, Coons SW, Eschbacher JM, Smith KA, Spetzler RF. Intraoperative confocal microscopy in the visualization of 5-aminolevulinic acid fluorescence in low-grade gliomas. J Neurosurg. 2011 Oct;115(4):740-8. doi: 10.3171/2011.6.JNS11252. Epub 2011 Jul 15.
PMID: 21761971RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Nader Sanai, MD
St. Joseph's Hospital Medical Center, Phoenix
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- PARTICIPANT
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 22, 2011
First Posted
December 30, 2011
Study Start
November 1, 2010
Primary Completion
January 1, 2018
Study Completion
June 1, 2018
Last Updated
November 24, 2023
Record last verified: 2017-01