AzTrials
AzTrials

Brain Injuries, TraumaticBOOST3NCT03754114

Brain Oxygen Optimization in Severe TBI, Phase 3

A study testing ICP + PbtO2 guided management strategy and ICP guided management strategy in people with Brain Injuries, Traumatic, run by University of Michigan at 51 sites in 2 countries.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

BOOST3 is a randomized clinical trial to determine the comparative effectiveness of two strategies for monitoring and treating patients with traumatic brain injury (TBI) in the intensive care unit (ICU). Read more about this study

Who is it for?
Ages 14 years and older
Conditions the study is for
Brain Injuries, Traumatic
What is being tested?
ICP + PbtO2 guided management strategy and ICP guided management strategy
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1,094 participants
Where
51 sitesin 2 countries
Study dates
28 Aug 2019to 1 Nov 2027
Phase
Interventional
Are there results?
Not yet: the study is under way

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 14 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Non-penetrating traumatic brain injury
  • Glasgow Coma Scale (GCS) 3-8 measured off paralytics
  • Glasgow Coma Scale motor score < 6 if endotracheally intubated
  • Evidence of intracranial trauma on CT scan
  • Able to place intracranial probes and randomize within 6 hours of arrival at enrolling hospital
  • Able to place intracranial probes and randomize within 12 hours from injury
  • Age greater than or equal to 14 years

Who cannot join

  • Non-survivable injury
  • Bilaterally absent pupillary response in the absence of paralytic medication
  • Contraindication to the placement of intracranial probes
  • Treatment of brain tissue oxygen values prior to randomization
  • Planned use of devices which may unblind treating physicians to brain tissue hypoxia
  • Systemic sepsis at screening
Show all 15Show fewer
  • Refractory hypotension
  • Refractory systemic hypoxia
  • PaO2/FiO2 ratio < 150
  • Known pre-existing neurologic disease with confounding residual neurological deficits
  • Known inability to perform activities of daily living (ADL) without assistance prior to injury
  • Known active drug or alcohol dependence that, in the opinion of site investigator, would interfere with physiological response to brain tissue oxygen treatments
  • Pregnancy
  • Prisoner
  • On EFIC Opt-Out list as indicated by a bracelet or medical alert

Trial locations and contacts

51 sites in 2 countries.

51 sites in 2 countries

United States48 sites
  • University of New Mexico Hospital

    Albuquerque, New Mexico, 87131

  • University of Michigan

    Ann Arbor, Michigan, 48109

  • Grady Memorial Hospital

    Atlanta, Georgia, 30303

  • University of Colorado Hospital

    Aurora, Colorado, 80045

  • University of Maryland Medical Center

    Baltimore, Maryland, 21201

  • Johns Hopkins Hospital

    Baltimore, Maryland, 21287

  • Brigham and Women's Hospital

    Boston, Massachusetts, 02115

  • Massachusetts General Hospital

    Boston, Massachusetts, 02128

  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts, 02215

  • Cooper University Hospital

    Camden, New Jersey, 08103

  • University of North Carolina Medical Center

    Chapel Hill, North Carolina, 27514

  • University of Chicago Medical Center

    Chicago, Illinois, 60637

  • University of Cincinnati Medical Center

    Cincinnati, Ohio, 45219

  • OSU Wexner Medical Center

    Columbus, Ohio, 43210

  • Riverside Methodist Hospital

    Columbus, Ohio, 43214

  • Parkland Hospital

    Dallas, Texas, 75235

  • Detroit Receiving Hospital

    Detroit, Michigan, 48201

  • Henry Ford Hospital

    Detroit, Michigan, 48201

  • Duke University Hospital

    Durham, North Carolina, 27710

  • NewYork-Presbyterian Queens Hospital

    Flushing, New York, 11355

  • UF Health Shands Hospital

    Gainesville, Florida, 32608

  • The Queen's Medical Center

    Honolulu, Hawaii, 96813

  • Ben Taub General Hospital

    Houston, Texas, 77030

  • St. Vincent Hospital

    Indianapolis, Indiana, 46260

  • Cedars-Sinai Medical Center

    Los Angeles, California, 90048

  • Ronald Reagan UCLA Medical Center

    Los Angeles, California, 90095-7436

  • North Shore University Hospital

    Manhasset, New York, 11030

  • Froedtert Hospital

    Milwaukee, Wisconsin, 53226

  • WVU Healthcare Ruby Memorial Hospital

    Morgantown, West Virginia, 26506

  • Yale New Haven Hospital

    New Haven, Connecticut, 06510

  • NYP Columbia University Medical Center

    New York, New York, 10032

  • Stanford University Medical Center

    Palo Alto, California, 94305

  • Penn Presbyterian Medical Center

    Philadelphia, Pennsylvania, 19104

  • Thomas Jefferson University Hospital

    Philadelphia, Pennsylvania, 19107

  • UPMC Presbyterian Hospital

    Pittsburgh, Pennsylvania, 15212

  • Maine Medical Center

    Portland, Maine, 04102

  • Oregon Health & Science University Hospital

    Portland, Oregon, 97239

  • VCU Medical Center

    Richmond, Virginia, 23298

  • Strong Memorial Hospital

    Rochester, New York, 14642

  • UC Davis Medical Center

    Sacramento, California, 95817

  • Regions Hospital

    Saint Paul, Minnesota, 55101

  • University of Utah Healthcare

    Salt Lake City, Utah, 84132

  • University of Texas Health Science Center San Antonio

    San Antonio, Texas, 78229

  • San Francisco General Hospital

    San Francisco, California, 94143

  • Harborview Medical Center

    Seattle, Washington, 98104

  • SUNY Upstate Medical University

    Syracuse, New York, 13210

  • Jacobi Medical Center

    The Bronx, New York, 10461

  • UMASS Memorial Medical Center

    Worcester, Massachusetts, 01655

Other trials in United States

Canada3 sites
  • University of Calgary - Foothills Medical Centre

    Calgary, Alberta, T2N 2T9

  • CIUSSS-NIM Hopital du Sacre - Coeur de Montreal

    Montreal, H4J 1C5

  • St. Michaels Hospital

    Toronto, Ontario, M5B 1W8

Other trials in Canada

About this study

Official title: Brain Oxygen Optimization in Severe TBI (BOOST3): A Comparative Effectiveness Study to Test the Efficacy of a Prescribed Treatment Protocol Based on Monitoring the Partial Pressure of Brain Tissue Oxygen.

BOOST3 is a randomized clinical trial to determine the comparative effectiveness of two strategies for monitoring and treating patients with traumatic brain injury (TBI) in the intensive care unit (ICU). The study will determine the safety and efficacy of a strategy guided by treatment goals based on both intracranial pressure (ICP) and brain tissue oxygen (PbtO2) as compared to a strategy guided by treatment goals based on ICP monitoring alone. Both of these alternative strategies are used in standard care. It is unknown if one is more effective than the other. In both strategies the monitoring and goals help doctors adjust treatments including the kinds and doses of medications and the amount of intravenous fluids given, ventilator (breathing machine) settings, need for blood transfusions, and other medical care. The results of this study will help doctors discover if one of these methods is more safe and effective.

Read the detailed description

BOOST3 is a randomized clinical trial to determine the comparative effectiveness of two strategies for monitoring and treating patients with traumatic brain injury (TBI) in the intensive care unit (ICU).

When a person has a TBI, their injured brain can swell over a period of hours or days. If the brain swells too much, the pressure in the skull increases and becomes dangerous, causing further injury to the brain. To try to prevent this, doctors usually insert a device, an ICP monitor, into the brain through a hole in the skull of people with severe TBI. An ICP monitor measures the pressure inside the skull. Most doctors agree that it is important to measure and prevent high ICP. Patients with injured brains also suffer additional injury to the brain if the amount of oxygen in the brain gets too low. Some doctors also insert a second device, a PbtO2 monitor, in the brain through the same or a second hole in the skull to measure brain tissue oxygen. A PbtO2 monitor measures how much oxygen is in a small area of the brain near the tip of the monitor. Other doctors think this is unnecessary and unhelpful. Both monitoring devices are approved by the US Food and Drug Administration (FDA) and Health Canada for patients with TBI. Both are commonly used. The ICP and PbtO2 goals guided by these monitors are used to help doctors adjust their treatment choices. Treatments include kinds and doses of medications and the amount of intravenous fluids given, ventilator (breathing machine) settings, need for blood transfusions, and other medical care. Each of these treatment decisions is intended to improve outcomes. However, each treatment decision also involves potential risks. Different treatment decisions may result in different risks. This study will also help doctors better understand these risks. This study is funded by the National Institutes of Health because it answers questions important to the care of patients with TBI.

This study is a two-arm, single-blind, randomized, controlled, phase III, multi-center trial of ICU monitoring and treatment strategies for patients with severe TBI. It will compare the efficacy of ICU care guided by PbtO2 and ICP monitoring versus monitoring of ICP alone in the first 5 days after injury. Only subjects who have severe TBI and require invasive monitoring, according to Brain Trauma Foundation (BTF) and American College of Surgeons-Trauma Quality Improvement (ACS TQIP) guidelines, will be enrolled. All participants in this study will have both ICP monitors and PbtO2 monitors. Half of the participants will be randomized to an arm that includes treatment informed by PbtO2 and ICP, and half will be randomized to an arm that treats only ICP.

The PbtO2 values of those in the ICP only arm will be masked, so that the treating physicians will not be guided by PbtO2 information. Participants in the PbtO2 and ICP arm will have PbtO2 monitored and low measurements treated. Treatments to address physiological goals in both arms will follow a clinical standardization plan. Participants will be followed for 6 months and occurrence of serious adverse events or death will be recorded. Participants will have a follow-up interview to assess their level of recovery approximately 6 months post injury.

To reduce the likelihood of imbalance of important prognostic factors between groups, a covariate-adjusted randomization scheme will be used in this study. Adjustment variables are clinical site and probability of a poor outcome as defined by the IMPACT core model.

Being tested
ICP + PbtO2 guided management strategy, ICP guided management strategy
Keywords
intracranial pressure, hypoxia, brain, critical care, emergency treatment, monitoring, physiologic
Medical subject headings
Brain Injuries, Traumatic, Hypoxia, Brain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ICP + PbtO2 guided management strategyOther

    In this management strategy, the physiological goal is to avoid ICP from exceeding 22 mm Hg and to avoid PbtO2 dropping below 20 mm Hg. ICP and PbtO2 are monitored using devices inserted into the brain through a hole in the skull. These devices are approved by the US Food and Drug Administration (FDA) and Health Canada for patients with severe TBI. The devices are used in standard care at hospitals participating in this research study. Doctors adjust their treatment choices to try to achieve these ICP and PbtO2 goals. Treatments include kinds and doses of medications and the amount of intravenous fluids given, ventilator (breathing machine) settings, need for blood transfusions, and other medical care. This management strategy is used to guide care for 5 days in this research study.

  • ICP guided management strategyOther

    In this management strategy, the physiological goal is to avoid ICP from exceeding 22 mm Hg. ICP and PbtO2 are monitored using devices inserted into the brain through a hole in the skull, but PbtO2 is not used to guide care. These devices are approved by the US Food and Drug Administration (FDA) and Health Canada, and are routinely used in patients with severe TBI. Doctors adjust their treatment choices to try to achieve this ICP goal. Treatments include kinds and doses of medications and the amount of intravenous fluids given, ventilator (breathing machine) settings, need for blood transfusions, and other medical care. This management strategy is used to guide care for 5 days in this research study.

Study groups in NCT03754114
Study groupRoleWhat they receive
ICP onlyActive comparatorICP guided management strategy: Care in the ICU of research participants randomized to this arm will be guided by a monitoring and treatment strategy in which doctors try to prevent high intracranial pressure (ICP) caused by a swollen brain. This strategy is one of two alternative strategies that is currently used in standard care of patients with traumatic brain injury.
Receives: Other: ICP guided management strategy
ICP + PbtO2Active comparatorICP + PbtO2 guided management strategy: Care in the ICU of research participants randomized to this arm will be guided by a monitoring and treatment strategy in which doctors try to prevent high intracranial pressure (ICP), and also try to prevent low PbtO2 (brain tissue oxygen levels). This strategy is one of two alternative strategies that is currently used in standard care of patients with traumatic brain injury.
Receives: Other: ICP + PbtO2 guided management strategy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Glasgow Outcome Scale-Extended (GOS-E)

    The Glasgow Outcome Scale-Extended (GOS-E) is a global scale for functional outcome, in which higher scores indicate better outcomes. The GOS-E rates patient status into one of eight categories. A GOS-E score of 1 indicates death, 2 indicates a vegetative state, 3 or 4 indicates severe disability, 5 or 6 indicates moderate disability, and 7 or 8 indicates good recovery. The categories of severe disability, moderate disability and good recovery are subdivided into a lower and upper category. All injury related disabilities are assessed.

    Measured: 6 months

Secondary outcomes (8)
  1. Survival

    Survival at discharge from hospital

    Measured: At discharge from hospital, an average of 19 days

  2. Total Brain Hypoxia Exposure

    The cumulative area on the time versus brain tissue oxygenation (PbtO2) curve in which PbtO2 is less than 20 mmHg.

    Measured: Inclusive of up to 5 days of study intervention

  3. Cognition: Rey Auditory Verbal Learning Test

    A measure of verbal learning and memory.

    Measured: 6 months

  4. Cognition: Trail Making Test Part A+B

    A measure of attention, visual-motor tracking and executive functioning.

    Measured: 6 months

  5. Emotional Health: Rivermead Post-Concussion Symptom Questionnaire

    A measure of the presence and severity of post-concussion somatic, cognitive, and emotional symptoms.

    Measured: 6 months

  6. Emotional Health: Brief Symptom Inventory 18

    A measure of psychological distress and psychiatric disorders.

    Measured: 6 months

  7. Emotional Health: Satisfaction with Life Scale

    A measure of global cognitive judgments of one's life satisfaction.

    Measured: 6 months

  8. Functional Status Exam

    Change in the activities of every day life as a function of a sudden event or illness

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Nov 2018
  2. Study start28 Aug 2019
  3. Primary completion1 Nov 2027 (estimated)
  4. Study completion1 Nov 2027 (estimated)

Resources

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
1,094 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03754114
Sponsor's protocol ID
BOOST3
Other IDs
U01NS099046
Acronym
BOOST3
Status last verified
Apr 2026
First submitted
16 Nov 2018
Last updated
5 May 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes

Publications

  • Okonkwo DO, Shutter LA, Moore C, Temkin NR, Puccio AM, Madden CJ, Andaluz N, Chesnut RM, Bullock MR, Grant GA, McGregor J, Weaver M, Jallo J, LeRoux PD, Moberg D, Barber J, Lazaridis C, Diaz-Arrastia RR. Brain Oxygen Optimization in Severe Traumatic Brain Injury Phase-II: A Phase II Randomized Trial. Crit Care Med. 2017 Nov;45(11):1907-1914. doi: 10.1097/CCM.0000000000002619.

    PubMed 29028696
  • Steinberg A, Case N, Yang Y, Fischhoff B, Callaway CW, Coppler PJ, Barsan WG, Diaz-Arrastia R, Geocadin R, Okonkwo DO, Shutter L, Silbergleit R, Meurer WJ, Yeatts SD, Elmer J. Clinicians' Approaches to Prognostication After Traumatic Brain Injury and Cardiac Arrest: A Multi-Hospital, Qualitative Study. Neurocrit Care. 2026 Aug;45(1):132-141. doi: 10.1007/s12028-026-02452-z. Epub 2026 Feb 12.

    PubMed 41680356
  • Bernard F, Barsan W, Diaz-Arrastia R, Merck LH, Yeatts S, Shutter LA. Brain Oxygen Optimization in Severe Traumatic Brain Injury (BOOST-3): a multicentre, randomised, blinded-endpoint, comparative effectiveness study of brain tissue oxygen and intracranial pressure monitoring versus intracranial pressure alone. BMJ Open. 2022 Mar 10;12(3):e060188. doi: 10.1136/bmjopen-2021-060188.

    PubMed 35273066
  • Fiore M, Bogossian E, Creteur J, Oddo M, Taccone FS. Role of brain tissue oxygenation (PbtO2) in the management of subarachnoid haemorrhage: a scoping review protocol. BMJ Open. 2020 Sep 15;10(9):e035521. doi: 10.1136/bmjopen-2019-035521.

    PubMed 32933956

Questions about this trial

What is this clinical trial studying?

A study testing ICP + PbtO2 guided management strategy and ICP guided management strategy in people with Brain Injuries, Traumatic, run by University of Michigan at 51 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?

The sponsor lists 7 inclusion and 15 exclusion criteria. 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: under way, not looking for participants, as of the sponsor's last update on 5 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 51 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.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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?

Glasgow Outcome Scale-Extended (GOS-E) (time frame: 6 months). 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 NCT03754114, which also lists 4 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 5 May 2026.

Free account

Keep searching with a free account

You’ve used your 3 free searches for this session. Log in or create a free AzTrials account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in
Brain Oxygen Optimization in Severe TBI, Phase 3 | AzTrials