Hyperbaric Oxygen Treatment to Treat Mild Traumatic Brain Injury (mTBI)/Persistent Post-Concussion Syndrome (PPCS)
Hyperbaric Oxygen Therapy Treatment of Chronic Mild Traumatic Brain Injury (mTBI)/Persistent Post-Concussion Syndrome (PPCS)
2 other identifiers
interventional
59
1 country
1
Brief Summary
Objective/Hypothesis: An eight-week course of forty low-pressure Hyperbaric Oxygen Treatment's (HBOT's) can significantly improve symptoms and cognitive function in subjects with the persistent-post concussion syndrome (PPCS) of mild traumatic brain injury (mTBI).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3
Started May 2014
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
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 14, 2014
CompletedFirst Posted
Study publicly available on registry
March 18, 2014
CompletedStudy Start
First participant enrolled
May 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2019
CompletedApril 18, 2017
April 1, 2017
3.8 years
March 14, 2014
April 16, 2017
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Working Memory
One week after final HBOT
Neurobehavioral Symptom Inventory (NSI)
One week after final HBOT
Secondary Outcomes (10)
Wechsler Abbreviated Scale of Intelligence II (WASI-II)
2 months after final HBOT
Wechsler Memory Scale-IV (WMS-IV
2 months after final HBOT
Rey Auditory Verbal Learning Test (RAVLT)
2 months after final HBOT
Benton Visual Retention Test with Alternate Forms (Benton VRT)
2 months after final HBOT
Stroop Color-Word Interference Test
2 months after final HBOT
- +5 more secondary outcomes
Study Arms (2)
Hyperbaric Oxygen Therapy (HBOT)
EXPERIMENTALHyperbaric Oxygen Therapy at 1.5 ATA (atmospheres absolute). The subjects will receive 40 low pressure HBOT's on a once/day, 5d/week eight week schedule.
No Hyperbaric Oxygen Treatment (HBOT)
EXPERIMENTALSubjects will receive eight weeks of no hyperbaric treatment while they continue any pre-study maintenance medication and/or pre-study counseling. Subjects will be retested and the control group will be crossed over to receive the identical 40 HBOTs of the HBOT group.
Interventions
HBOT Group: Pressurization will proceed with 100% oxygen at 1.0 pounds per square inch (psi) per minute, the minimal pressurization rate, to 1.5 ATA (atmospheres absolute) or 7.35 psi and will take approximately 7 minutes. Pressurization will then resume until the final depth of 1.5 ATA is achieved. The patient will remain at depth for approximately 45 minutes and the subject will be informed of the onset of depressurization, which will occur at the same rate as pressurization. Total dive time will be 60 minutes.
Subjects will receive their usual care during the equivalent eight-week HBOT treatment period. There will be no hyperbaric chamber experience. At the conclusion of the eight-week control period both control and experimental subjects will be retested and the control group will be crossed over to receive the identical 40 HBOTs of the HBOT group.
Eligibility Criteria
You may qualify if:
- Adults, 18-65 years old.
- One or more mild TBI's due to blunt or blast injury.
- Meets criteria for PPCS.
- Ability to complete the NSI.
- Ability to complete the PCL-M or C.
- Ability to complete CAPS if needed.
- Absence of acute cardiac arrest or hemorrhagic shock at time of TBI that would cause a global ischemic insult to the TBI.
- Ability to complete the Michigan Alcohol Screening Test( MAST) and Drug Abuse Screening Test (DAST).
- Ability to complete a urine toxicology screen for drugs of abuse.
- Negative pregnancy test in females. Female subjects will need to have a negative urinalysis result in order to start or continue treatment.
- Subjects must be legally responsible, speak and understand English fluently, and be able to sign their own consent documents.
- Otherwise good health.
You may not qualify if:
- Pulmonary disease that precludes HBOT (e.g., bronchospasm unresponsive to medication, bullous emphysema).
- Unstable medical conditions that are contraindicated in HBOT (e.g. severe congestive heart failure or heart failure requiring hospital emergency evaluation or admission in the previous year).
- Severe confinement anxiety (e.g., patients who require anesthesia conscious sedation for MRI).
- Other pre-TBI cerebral neurological diagnoses including stroke, dementia, degenerative diseases, multiple sclerosis, congenital neurological disorder.
- Participation in another experimental trial with active intervention.
- High probability of inability to complete the experimental protocol (e.g. terminal condition or inability to complete outcome instruments).
- Previous HBOT.
- History of hospitalization for past stroke, non-febrile seizures, or any seizure history other than seizure at the time of TBI.
- Past or current history of mental retardation.
- Pre-/post-TBI history of systemic illness with impact on central nervous system (P.I.'s decision).
- Pre-injury psychiatric disorders for which the patient was on medication at the time of the brain injury responsible for the patient's diagnosis of TBI/PPCS.
- Any concurrent systemic illness whose symptomatology confounds the diagnosis of PPCS (P.I.'s decision).
- Active malignancy undergoing treatment.
- Taking lithium.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Louisiana State University Health Sciences Center-New Orleans
New Orleans, Louisiana, 70112, United States
Related Publications (1)
Harch PG, Andrews SR, Rowe CJ, Lischka JR, Townsend MH, Yu Q, Mercante DE. Hyperbaric oxygen therapy for mild traumatic brain injury persistent postconcussion syndrome: a randomized controlled trial. Med Gas Res. 2020 Jan-Mar;10(1):8-20. doi: 10.4103/2045-9912.279978.
PMID: 32189664DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Paul G Harch, MD
Louisiana State University Health Sciences Center in New Orleans
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Masking Details
- Neuropsychological testers and neuropsychologist blinded to treatment group.
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Clinical Professor of Medicine
Study Record Dates
First Submitted
March 14, 2014
First Posted
March 18, 2014
Study Start
May 1, 2014
Primary Completion
March 1, 2018
Study Completion
March 1, 2019
Last Updated
April 18, 2017
Record last verified: 2017-04