Safety and Tolerability of Oxycyte in Patients With Traumatic Brain Injury (TBI) (STOP-TBI)
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Purpose
The primary objective of this study is to evaluate the safety and tolerability of a single administration of Oxycyte in patients with severe non-penetrating traumatic brain injury (TBI).
In the first dose level (Cohort 1), 11 patients were randomized 2:1 to receive either 1.0 mL/kg Oxycyte (0.6 g/kg; n=8) or NS (n=3). A total of 8 patients received Oxycyte. The Data Safety Monitoring Board (DSMB) reviewed the safety data for patients in Cohort 1 through Day 14, and approved escalation to the next dose.
In Cohort 2, 18 patients will be randomized 2:1 to receive either 2.0 mL/kg Oxycyte (1.2 g/kg; n=12) or NS (n=6). The DSMB will then review the safety data for all patients in Cohort 2 through Day 14 and either approve escalation to the highest dose or remain at the current dose. If remaining at the current dose level (Cohort 2) an additional 50 patients will be randomized 1:1 to Oxycyte (n=25) or NS (n=25) and treated.
If escalation occurs to Cohort 3, 18 patients would be randomized 2:1 to Oxycyte (n=12) or NS (n=6) to receive the 3.0 mL/kg dose. The DSMB would again review the safety data and decide whether to treat an additional 50 patients at this dose, which would be randomized 1:1 to receive Oxycyte (n=25) or NS (n=25), or to decrease the dose back to 2.0 mL/kg. If the dose is reduced, an additional 50 patients will be randomized to receive Oxycyte (n=25) or NS (n=25) and treated at the 2.0 mL/kg dose.
| Condition | Intervention | Phase |
|---|---|---|
|
Traumatic Brain Injury |
Drug: Oxycyte Drug: Normal Saline |
Phase 2 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety Study Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor) Primary Purpose: Treatment |
| Official Title: | A Randomized, Placebo Controlled, Double-Blind, Single Dose, Dose Escalation Study to Evaluate the Safety and Tolerability of Oxycyte in Patients With Severe Non-Penetrating Traumatic Brain Injury |
- Safety as measured by incidence and severity of AEs/SAEs, thrombocytopenia, nosocomial infection and incidence of rebleed [ Time Frame: Through Day 30 or hospital discharge ] [ Designated as safety issue: Yes ]
- Efficacy as determined by 1. brain tissue oxygen tension, 2. neurological outcome as measured by GCS, and 3. functional outcome as measured by GOS-E [ Time Frame: Through Day 7, at Day 30, and at Months 3 and 6, respectively ] [ Designated as safety issue: No ]
| Estimated Enrollment: | 98 |
| Study Start Date: | October 2009 |
| Estimated Study Completion Date: | December 2015 |
| Estimated Primary Completion Date: | June 2015 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
| Experimental: Oxycyte Perfluorocarbon Emulsion |
Drug: Oxycyte
A single dose of one of three dosage levels (dose escalating design), given by intravenous infusion at the rate of 15 mL/min (total duration expected to be between 5 and 20 minutes).
|
| Placebo Comparator: Normal Saline |
Drug: Normal Saline
Normal saline given via intravenous infusion at the rate of 15 mL/min at the volume that would be equivalent to the volume of Oxycyte if the patient were assigned to the active treatment group.
|
Detailed Description:
Randomized, double-blind, controlled, single administration, dose-escalation (up to three dose levels of Oxycyte) administered in conjunction with 50% oxygen (or greater, if per standard of care for a particular patient based on his / her condition, up to a maximum of 80%) and standard of care.
At each dose level, patients receiving Oxycyte will be compared to a control group of patients who will receive Normal Saline (NS); all patients will receive 50% oxygen or greater, if per standard of care for a particular patient based on his / her condition, up to a maximum of 80%.
If the Principal Investigator deems it necessary the patient may be temporarily placed on 100% O2 for a maximum of 2 hours.
Ischemic brain damage is found in 80% of patients who die from severe head injury and studies have shown that early, transient cerebral hypoperfusion of unknown origin is present in about 40% of these patients. Recently, new techniques have permitted continuous monitoring of brain oxygen tension and in a recently published study, it has been shown that about one-third of severe head injured patients have reduced brain oxygen tension (<25 mm Hg Hg02) for the first 6 to 12 hours following severe head injury. In this group of patients with low brain oxygen, outcome is significantly worse.
Since increasing brain oxygen tension by both FiO2 increase and HBO have shown benefit both in the lab and in patients, it is theorized that perfluorocarbon-enhanced oxygen delivery may provide the same or greater benefit. PFCs are especially attractive in this setting for several reasons; first, because they transport oxygen without the need for erythrocytes and hemoglobin and can thus perfuse and oxygenate "peri-contusional" brain tissue in which it has been shown that capillaries are so narrowed as to impede RBC transport; secondly, PFCs actually increase oxygen transport and oxygen tension in the tissues, which cannot be achieved with normobaric hyperoxia alone.
Eligibility| Ages Eligible for Study: | 18 Years to 70 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Male or female 18 - 70 years of age, inclusive, at the time of study entry
- Non-penetrating traumatic brain injury
- Evidence of severe TBI by clinical evaluation, clinical indication for ICP monitoring, GCS assessment (3-9, obtained any time prior to dosing and including patients who deteriorate to severe TBI after arrival in the hospital) and abnormalities on head CT scan (e.g., Marshall Grade II-V or equivalent)
- At least one reactive pupil at screening, confirmed again just prior to the administration of study drug
- Able to begin the infusion of study drug within 12 hours of injury
- Weight ≥45 kg
- If a patient, due to his or her injuries is unable to provide written informed consent, then written informed consent may be obtained: A) From the patient's family or legally authorized representative through the conveyance of Presumable Will or B) Through discussions with the Principal Investigator an independent physician may approve a patient's participation in the study. In this process, conveyance of Presumable Will is provided by the patient's family or legally authorized representative, if available, at a later date.
Exclusion Criteria:
- Penetrating traumatic brain injury
- Absence of a motor response
- Bilaterally fixed and dilated pupils
- Known allergy to any component of Oxycyte or known severe allergy to eggs
- History of severe TBI (previous to the current TBI) or any prior cerebral injury that required hospitalization and that may, in the Investigator's opinion, interfere with the results of this study
- Known history of HIV
- Known history of major liver disease (e.g., liver failure, necrosis or cirrhosis) or chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
- Immersion injury
- Known or suspected brain tumor
- Known history of any of the following neurodegenerative diseases: Parkinson's Disease, Huntington's Disease, major stroke, seizure disorder, Multiple Sclerosis or cerebral aneurysm (unless clipped and stable, in which case patient may be included)
- Platelet count <100,000/mm3 at screening, prior to transfusion of any platelets
- In the judgment of the Investigator, any clinically significant prolonged clotting time on International Normalized ratio (INR), prothrombin time (PT) or activated partial thromboplastin time (aPTT), or any other coagulation test performed
- Major liver, kidney, or cardiac injury requiring operative intervention
- Not expected to survive the next 24 hours
- Morbidly obese (BMI >40)
- Concurrent use of Plavix® (clopidogrel bisulfate), Pradaxa® (dabigatran elexilate) or an anti- coagulant other than ≤100 mg/day aspirin for any condition
- One or more of the following liver function test results: Total Bilirubin >2 x ULN, ALT >2.5 x ULN, or AST 2.5 > x ULN
- Major pulmonary injury, including lung contusion, severe atelectasis, acute respiratory distress syndrome, or acute aspiration pneumonitis
- Severe COPD, pulmonary edema, or congestive heart failure in the judgment of the Investigator
- Any life threatening condition prior to the current injury or other diseases or disorders that, in the Investigator's opinion, may put the patient at undue risk or confound the results of the study
- Any known hematological or coagulopathic disorder that, in the Investigator's opinion, is likely to significantly impair platelet function or coagulation (e.g., hemophilia, von Willebrand's disease, myelodysplastic syndrome)
- Hemodynamically unstable ((defined as a mean arterial pressure (MAP) <70mmHg, or requiring >6L colloid or crystalloid fluid resuscitation))
- Cardiopulmonary resuscitation required following the current injury
- Women with a positive urine pregnancy test at screening
- Current participation in another clinical trial with an investigational product, or participation in such a clinical trial within 30 days prior to screening
- Patients serving in the military forces at the time of screening who (if required) do not have the necessary approval from the appropriate authorities
- Inability to obtain Informed Consent
Contacts and Locations| Contact: Timothy Bradshaw, Ph.D. | 919-855-2140 | t.bradshaw@oxybiomed.com |
| Contact: Cathy Grill, BSN | 919-855-2145 | c.grill@oxybiomed.com |
| Israel | |
| Soroka Medical Center | Active, not recruiting |
| Beer Sheva, Ben Gurion, Israel, 84101 | |
| Rambam Health Care Campus | Recruiting |
| Haifa, Israel, 31096 | |
| Contact: Leon Levi, MD 972 04 854 2320 llevi@rambam.health.gov.il | |
| Contact: Menashe Zaaroor, Prof 97248542640 m_zaaroor@rambam.health.gov.il | |
| Principal Investigator: Menashe Zaaroor, MD | |
| Principal Investigator: Leon Levi, MD | |
| Hadassah Medical Center | Active, not recruiting |
| Jerusalem, Israel, 91120 | |
| Sheba Medical Center | Active, not recruiting |
| Ramat Gan, Israel, 52662 | |
| Tel-Aviv Sourasky Medical Center | Active, not recruiting |
| Tel-Aviv, Israel, 64239 | |
| Switzerland | |
| Ospedale Regionale Lugano | Not yet recruiting |
| Lugano, Switzerland, CH-TI | |
| Contact: Michael Reinert, Prof., MD | |
| Principal Investigator: Michael Reinert, Prof., MD | |
| Principal Investigator: | Michael Reinert, MD | Neurosurgery, Ospedale Regionale Lugano |
More Information
No publications provided
| Responsible Party: | Oxygen Biotherapeutics, Inc. |
| ClinicalTrials.gov Identifier: | NCT00908063 History of Changes |
| Other Study ID Numbers: | OX-CL-II-005 |
| Study First Received: | May 22, 2009 |
| Last Updated: | May 8, 2013 |
| Health Authority: | Switzerland: Swissmedic Israel: Ministry of Health |
Keywords provided by Oxygen Biotherapeutics, Inc.:
|
TBI Traumatic Brain Injury |
Additional relevant MeSH terms:
|
Brain Injuries Brain Diseases Central Nervous System Diseases Nervous System Diseases |
Craniocerebral Trauma Trauma, Nervous System Wounds and Injuries |
ClinicalTrials.gov processed this record on May 23, 2013