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PROphylaxis for Venous ThromboEmbolism in Severe Traumatic Brain Injury (PROTEST) (PROTEST)

Primary Purpose

Traumatic Brain Injury

Status
Recruiting
Phase
Phase 3
Locations
Canada
Study Type
Interventional
Intervention
Dalteparin
Saline
Sponsored by
Sunnybrook Health Sciences Centre
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Traumatic Brain Injury focused on measuring Sequential Compression Device, Anticoagulant Thromboprophylaxis, Deep Vein Thrombosis, Sub Cutaneous, VTE

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria

The pragmatic nature of this study seeks to include all consecutive patients presenting with significant TBI, regardless of whether ICB is evident at presentation. Inclusion criteria are the following:

i) Patients with severe TBI defined as GCS of ≤8, or

ii) Patients with moderate TBI defined as GCS = 9-12, admitted to ICU, with at least some ICB present on initial CT scan and any of the following:

  1. Requiring invasive mechanical ventilation at the time of screening
  2. Increased ICB on repeat CT scan compared to initial CT scan

iii) Upon randomization the patient will be able to receive the first dose of study drug in the first 3 calendar days from the time of injury

iv) ≥ 18 years of age

Exclusion Criteria

All participants meeting any of the following exclusion criteria at baseline will be excluded from participation in this study:

i) Known Hypersensitivity to FRAGMIN (Dalteparin), or its constituents including benzyl alcohol or to other low molecular weight heparins and/or heparins or pork products

ii) Known history of confirmed or suspected immunologically-mediated heparin-induced thrombocytopenia (delayed-onset severe thrombocytopenia), and/or in patients with a known history of a positive in vitro platelet-aggregation test in the presence of FRAGMIN (Dalteparin) is positive

iii) Known septic endocarditis

iv) Uncontrollable active bleeding

v) Known major blood clotting disorders

vi) Known acute gastroduodenal ulcer (with active bleeding)

vii) Severe uncontrolled hypertension (i.e. BP>210 despite medications)

viii) Known diabetic or hemorrhagic retinopathy

ix) Anticipated to be unable to receive SCD on at least one lower extremity due to nature of injuries for duration of intervention period

x) Presence of another confounding factor that can adequately explain the poor GCS at time of presentation (e.g. drug toxicity, seizure)

xi) Known presence of irreversible coagulopathies

xii) Known Pregnancy

xiii) Participants extremely low weight (<45 kg), or extremely high weight (>120kg)

xiv) Not expected to survive more than 48 hours from admission

Sites / Locations

  • Foothills Medical CentreRecruiting
  • Royal Alexandra HospitalRecruiting
  • University of Alberta HospitalRecruiting
  • Vancouver General HospitalRecruiting
  • Queen Elizabeth II Health Sciences CentreRecruiting
  • Hamilton Health Sciences CentreRecruiting
  • Kingston General HospitalRecruiting
  • The Ottawa HospitalRecruiting
  • Sunnybrook Health Science CentreRecruiting
  • Unity Health TorontoRecruiting
  • Royal University HospitalRecruiting
  • Hopital de L'Enfant-JesusRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Placebo Comparator

Arm Label

Anticoagulant

Saline

Arm Description

Dalteparin sodium (at a dose of 5000 IU once daily by subcutaneous injection) for 7 days upon randomization after hospital admission.

Saline (0.2 mL) once daily by subcutaneous injection for 7 days upon randomization after hospital admission.

Outcomes

Primary Outcome Measures

Clinically important VTE
Composite outcome of clinically-important VTE within 7±1 days after randomization defined as any of: Symptomatic, objectively-confirmed pulmonary embolism (PE), or Symptomatic, objectively-confirmed, proximal leg deep vein thrombosis (DVT), or Proximal (above knee) leg DVT on compression ultrasonography on Day 7±1

Secondary Outcome Measures

Clinically-important ICB (Intracranial bleeding) progression
Clinically-important ICB progression within 7±1 days after randomization , as defined by having (1) any increase in volume of blood in the brain on any CT scan within 7±1 days relative to initial CT scan on Day 0* AND (2) clinical worsening within 24 hours of this CT scan, defined by one or more of the following: Surgical intervention related to increased ICB after Day 0 (craniotomy/craniectomy, ICP monitor, external ventricular drain) Decrease of GCS (Glasgow Coma Scale) by at least 2 points not related to sedation Increase in ICP >5 mmHg on 2 occasions at least 6 hours apart despite medical therapy (if ICP monitor is in place) Death
Objectively confirmed new or progressing ICB on radiology,
Assessed by comparing the initial brain CT (Day 0) to that performed within 8±1 days following randomization (or most recent prior to death).
180-day Mortality
Mortality at 180 days
7-day Mortality
Mortality at 7 days
30-day Mortality
Mortality at 30 days
Delayed VTE after day 7
Any clinically important VTE occurring between Day 8 to Day 30 detected by treating clinicians
Functional neurological outcome at day 30 as measured by Glasgow Outcome Scale Extended
Glasgow Outcome Scale Extended (GOSE) at Day 30±5 by phone interview.
Functional neurological outcome at day 180 as measured by Glasgow Outcome Scale Extended
Glasgow Outcome Scale Extended (GOSE) at Day 180±14 by phone interview.
Quality of life outcome at 30 days as measured by the EuroQol5D
EQ-5D (EuroQol 5D) at Day 30±5 by phone interview.
Quality of life outcome at 180 days as measured by the EuroQol5D
EQ-5D (EuroQol 5D) at Day 180±14 by phone interview.

Full Information

First Posted
April 10, 2018
Last Updated
November 16, 2022
Sponsor
Sunnybrook Health Sciences Centre
Collaborators
Sunnybrook Research Institute, Canadian Institutes of Health Research (CIHR)
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1. Study Identification

Unique Protocol Identification Number
NCT03559114
Brief Title
PROphylaxis for Venous ThromboEmbolism in Severe Traumatic Brain Injury (PROTEST)
Acronym
PROTEST
Official Title
PROTEST Trial - PROphylaxis for Venous ThromboEmbolism in Severe Traumatic Brain Injury, a Double-blind Randomized Controlled Trial
Study Type
Interventional

2. Study Status

Record Verification Date
November 2022
Overall Recruitment Status
Recruiting
Study Start Date
July 19, 2018 (Actual)
Primary Completion Date
December 2026 (Anticipated)
Study Completion Date
December 2027 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Sunnybrook Health Sciences Centre
Collaborators
Sunnybrook Research Institute, Canadian Institutes of Health Research (CIHR)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This is a pilot study, phase III, multi-centre, double blind, randomized controlled trial of patients with traumatic brain injury (TBI).
Detailed Description
Patients with severe brain injury are at risk for developing blood clots in their legs, which can travel to the lungs. This potentially serious complication is known as venous thromboembolism (VTE). Anticoagulants are commonly used to prevent VTE in hospital patients. However, in patients with major head injury, anticoagulant prevention is commonly delayed for the fear that it can potentially lead to further bleeding in the brain. Another method that aims to prevent blood clots involves the use of sequential compression device (SCD) that compress the legs and increase the flow of blood in the leg veins. This study will compare results from patients who receive the SCDs only to those who receive both SCD and anticoagulants. The outcome of this study will provide information about how best to prevent blood clots while not increase brain bleeding after head injury.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Traumatic Brain Injury
Keywords
Sequential Compression Device, Anticoagulant Thromboprophylaxis, Deep Vein Thrombosis, Sub Cutaneous, VTE

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantCare ProviderInvestigator
Allocation
Randomized
Enrollment
1100 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Anticoagulant
Arm Type
Active Comparator
Arm Description
Dalteparin sodium (at a dose of 5000 IU once daily by subcutaneous injection) for 7 days upon randomization after hospital admission.
Arm Title
Saline
Arm Type
Placebo Comparator
Arm Description
Saline (0.2 mL) once daily by subcutaneous injection for 7 days upon randomization after hospital admission.
Intervention Type
Drug
Intervention Name(s)
Dalteparin
Other Intervention Name(s)
Fragmin
Intervention Description
Dalteparin in prophylactic doses administered daily if screening criteria are satisfied.
Intervention Type
Drug
Intervention Name(s)
Saline
Other Intervention Name(s)
Sodium Chloride
Intervention Description
Saline in prophylactic doses administered daily if screening criteria are satisfied.
Primary Outcome Measure Information:
Title
Clinically important VTE
Description
Composite outcome of clinically-important VTE within 7±1 days after randomization defined as any of: Symptomatic, objectively-confirmed pulmonary embolism (PE), or Symptomatic, objectively-confirmed, proximal leg deep vein thrombosis (DVT), or Proximal (above knee) leg DVT on compression ultrasonography on Day 7±1
Time Frame
8 days
Secondary Outcome Measure Information:
Title
Clinically-important ICB (Intracranial bleeding) progression
Description
Clinically-important ICB progression within 7±1 days after randomization , as defined by having (1) any increase in volume of blood in the brain on any CT scan within 7±1 days relative to initial CT scan on Day 0* AND (2) clinical worsening within 24 hours of this CT scan, defined by one or more of the following: Surgical intervention related to increased ICB after Day 0 (craniotomy/craniectomy, ICP monitor, external ventricular drain) Decrease of GCS (Glasgow Coma Scale) by at least 2 points not related to sedation Increase in ICP >5 mmHg on 2 occasions at least 6 hours apart despite medical therapy (if ICP monitor is in place) Death
Time Frame
7 days
Title
Objectively confirmed new or progressing ICB on radiology,
Description
Assessed by comparing the initial brain CT (Day 0) to that performed within 8±1 days following randomization (or most recent prior to death).
Time Frame
8 days
Title
180-day Mortality
Description
Mortality at 180 days
Time Frame
180 days
Title
7-day Mortality
Description
Mortality at 7 days
Time Frame
7 days
Title
30-day Mortality
Description
Mortality at 30 days
Time Frame
30 days
Title
Delayed VTE after day 7
Description
Any clinically important VTE occurring between Day 8 to Day 30 detected by treating clinicians
Time Frame
30 days
Title
Functional neurological outcome at day 30 as measured by Glasgow Outcome Scale Extended
Description
Glasgow Outcome Scale Extended (GOSE) at Day 30±5 by phone interview.
Time Frame
30 days
Title
Functional neurological outcome at day 180 as measured by Glasgow Outcome Scale Extended
Description
Glasgow Outcome Scale Extended (GOSE) at Day 180±14 by phone interview.
Time Frame
180 days
Title
Quality of life outcome at 30 days as measured by the EuroQol5D
Description
EQ-5D (EuroQol 5D) at Day 30±5 by phone interview.
Time Frame
30 days
Title
Quality of life outcome at 180 days as measured by the EuroQol5D
Description
EQ-5D (EuroQol 5D) at Day 180±14 by phone interview.
Time Frame
180 days

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria The pragmatic nature of this study seeks to include all consecutive patients presenting with significant TBI, regardless of whether ICB is evident at presentation. Inclusion criteria are the following: i) Patients with severe TBI defined as GCS of ≤8, or ii) Patients with moderate TBI defined as GCS = 9-12, admitted to ICU, with at least some ICB present on initial CT scan and any of the following: Requiring invasive mechanical ventilation at the time of screening Increased ICB on repeat CT scan compared to initial CT scan iii) Upon randomization the patient will be able to receive the first dose of study drug in the first 3 calendar days from the time of injury iv) ≥ 18 years of age Exclusion Criteria All participants meeting any of the following exclusion criteria at baseline will be excluded from participation in this study: i) Known Hypersensitivity to FRAGMIN (Dalteparin), or its constituents including benzyl alcohol or to other low molecular weight heparins and/or heparins or pork products ii) Known history of confirmed or suspected immunologically-mediated heparin-induced thrombocytopenia (delayed-onset severe thrombocytopenia), and/or in patients with a known history of a positive in vitro platelet-aggregation test in the presence of FRAGMIN (Dalteparin) is positive iii) Known septic endocarditis iv) Uncontrollable active bleeding v) Known major blood clotting disorders vi) Known acute gastroduodenal ulcer (with active bleeding) vii) Severe uncontrolled hypertension (i.e. BP>210 despite medications) viii) Known diabetic or hemorrhagic retinopathy ix) Anticipated to be unable to receive SCD on at least one lower extremity due to nature of injuries for duration of intervention period x) Presence of another confounding factor that can adequately explain the poor GCS at time of presentation (e.g. drug toxicity, seizure) xi) Known presence of irreversible coagulopathies xii) Known Pregnancy xiii) Participants extremely low weight (<45 kg), or extremely high weight (>120kg) xiv) Not expected to survive more than 48 hours from admission
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Farhad Pirouzmand, MD, MSc, FRCSC
Phone
416-480-6100
Ext
5263
Email
farhad.pirouzmand@sunnybrook.ca
First Name & Middle Initial & Last Name or Official Title & Degree
Kanthi Kavikondala, CCRP
Phone
416-480-6100
Ext
87546
Email
protest@sunnybrook.ca
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Farhad Pirouzmand, MD, MSc, FRCSC
Organizational Affiliation
Sunnybrook Health Sciences Centre
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Damon Scales, MD, PhD, FRCPC
Organizational Affiliation
Sunnybrook Health Sciences Centre
Official's Role
Principal Investigator
Facility Information:
Facility Name
Foothills Medical Centre
City
Calgary
State/Province
Alberta
ZIP/Postal Code
T2N 2T9
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Olesya Dmitrieva
Email
olesya.dmitrieva@ucalgary.ca
First Name & Middle Initial & Last Name & Degree
Andreas Kramer, MD
Facility Name
Royal Alexandra Hospital
City
Edmonton
State/Province
Alberta
ZIP/Postal Code
T5H 3V9
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Patrica Thompson
Email
patrica.thompson@albertahealthservices.ca
First Name & Middle Initial & Last Name & Degree
Tayne Hewer
Email
tayne.hewer@albertahealthservices.ca
First Name & Middle Initial & Last Name & Degree
Jim Kutsogiannis, MD, MHS, FRCPC
Facility Name
University of Alberta Hospital
City
Edmonton
State/Province
Alberta
ZIP/Postal Code
T6G 2B7
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Patrica Thompson
Email
patrica.thompson@albertahealthservices.ca
First Name & Middle Initial & Last Name & Degree
Tayne Hewer
Email
tayne.hewer@albertahealthservices.ca
First Name & Middle Initial & Last Name & Degree
Jim Kutsogiannis, MD, MHS, FRCPC
Facility Name
Vancouver General Hospital
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V5Z 1M9
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Rebecca Grey
Email
Rebecca.Grey@vch.ca
First Name & Middle Initial & Last Name & Degree
Donald Griesdale, MD, MPH, FRCPC
Facility Name
Queen Elizabeth II Health Sciences Centre
City
Halifax
State/Province
Nova Scotia
ZIP/Postal Code
B3H 3A7
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Laura-Lee Magennis
Email
Laura.Magennis@nshealth.ca
First Name & Middle Initial & Last Name & Degree
Lisa Julien
Email
lisa.julien@nshealth.ca
First Name & Middle Initial & Last Name & Degree
Sean Christie, MD, FRCSC
First Name & Middle Initial & Last Name & Degree
Laurel Murphy, MD
Facility Name
Hamilton Health Sciences Centre
City
Hamilton
State/Province
Ontario
ZIP/Postal Code
L8N 3Z5
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Amanda Martyniuk
Email
martynia@mcmaster.ca
First Name & Middle Initial & Last Name & Degree
Sunjay Sharma, MD, MSc, FRCSC, FACS
First Name & Middle Initial & Last Name & Degree
Paul Engels, MD
Facility Name
Kingston General Hospital
City
Kingston
State/Province
Ontario
ZIP/Postal Code
K7N 2V7
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Tracy Boyd
Email
Tracy.Boyd@kingstonhsc.ca
First Name & Middle Initial & Last Name & Degree
Gordon Boyd, MD, PhD, FRCPC
Facility Name
The Ottawa Hospital
City
Ottawa
State/Province
Ontario
ZIP/Postal Code
KIH 8L6
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Rebecca Porteous
Email
rporteous@ohri.ca
First Name & Middle Initial & Last Name & Degree
Sydney Mietzitis
Email
smiezitis@ohri.ca
First Name & Middle Initial & Last Name & Degree
Shane English, MD, MSc, FRCPC
Facility Name
Sunnybrook Health Science Centre
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M4N 3M5
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Farhad Pirouzmand, MD, MSc, FRCSC
First Name & Middle Initial & Last Name & Degree
Damon Scales, MD, PhD, FRCPC
Facility Name
Unity Health Toronto
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M5B1W8
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Marlene Santos, MD, MSc
Email
Marlene.Santos@unityhealth.to
First Name & Middle Initial & Last Name & Degree
Michael Cusimano, MD, MHPE, FRCS, PhD
Facility Name
Royal University Hospital
City
Saskatoon
State/Province
Saskatchewan
ZIP/Postal Code
S7N 0W8
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Emily Junk
Email
emily.junk@usask.ca
First Name & Middle Initial & Last Name & Degree
Gary Hunter, MD, FRCPC, CSCN (EEG)
Facility Name
Hopital de L'Enfant-Jesus
City
Quebec
ZIP/Postal Code
G1J 1Z4
Country
Canada
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
David Bellemare
Email
David.Bellemare@crchudequebec.ulaval.ca
First Name & Middle Initial & Last Name & Degree
Alexis Turgeon-Fournier, MD

12. IPD Sharing Statement

Learn more about this trial

PROphylaxis for Venous ThromboEmbolism in Severe Traumatic Brain Injury (PROTEST)

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