Type O Whole Blood and Assessment of Age During Prehospital Resuscitation Trial
TOWAR
2 other identifiers
interventional
1,020
1 country
10
Brief Summary
Open label, multi-center, pre-hospital randomized trial utilizing 10 level-1 trauma centers designed to determine the efficacy and safety of low titer whole blood resuscitation as compared to standard of care resuscitation in patients at risk of hemorrhagic shock and to appropriately characterize the hemostatic competency of whole blood relative to its age.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_3
Started Apr 2022
Typical duration for phase_3
10 active sites
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
First Submitted
Initial submission to the registry
December 18, 2020
CompletedFirst Posted
Study publicly available on registry
December 24, 2020
CompletedStudy Start
First participant enrolled
April 19, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 28, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 12, 2025
CompletedFebruary 12, 2026
February 1, 2026
3.3 years
December 18, 2020
February 11, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
30-day mortality
All cause mortality within 30 days
Enrollment through 30 days
Secondary Outcomes (20)
Age of whole blood
During Procedure
3-hour mortality
Enrollment through 3 hours
6-hour mortality
Enrollment through 6 hours
24-hour mortality
Enrollment through 24 hours
In-hospital mortality
Enrollment through hospital discharge or 30 days
- +15 more secondary outcomes
Study Arms (2)
Whole Blood
EXPERIMENTALSubjects will receive up to two units of whole blood as collected by local blood bank procedures and stored at 1-6 degrees Celsius initiated in the prehospital phase of care.
Standard Care
ACTIVE COMPARATORSubjects will receive prehospital crystalloid infusion or blood component transfusion resuscitation per site standard care for the respective Emergency Medical unit/service.
Interventions
low titer whole blood, group O kept to either 21 days or 35 days based upon which preservation process is employed at each respective participating site
crystalloid infusion or blood component transfusion resuscitation
Eligibility Criteria
You may qualify if:
- ) Injured patients at risk of hemorrhagic shock being transported from scene or referral hospital to a participating TOWAR trial site that meet requirements for initiation of blood or blood component transfusion
- AND
- A.) Systolic blood pressure ≤ 90mmHg and tachycardia (HR ≥ 108) at scene, at outside hospital or during transport OR
- B.) Systolic blood pressure ≤ 70mmHg at scene, at outside hospital or during transport
You may not qualify if:
- Wearing NO TOWAR opt-out bracelet
- Age \> 90 or \< 18 years of age
- Isolated fall from standing injury mechanism
- Known prisoner or known pregnancy
- Traumatic arrest with \> 5 minutes of CPR without return of vital signs
- Brain matter exposed or penetrating brain injury (GSW)
- Isolated drowning or hanging victims
- Objection to study voiced by subject or family member at the scene
- Inability to obtain IV or intraosseous access
- Isolated burns without evidence of traumatic injury
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Jason Sperrylead
- United States Department of Defensecollaborator
Study Sites (10)
University of Alabama at Birmingham
Birmingham, Alabama, 35294, United States
University of Louisville
Louisville, Kentucky, 40292, United States
University of Mississippi Medical Center (UMMC)
Jackson, Mississippi, 39216, United States
University of Cincinatti
Cincinnati, Ohio, 45267, United States
Metrohealth Systems
Cleveland, Ohio, 44109, United States
University of Pittsburgh
Pittsburgh, Pennsylvania, 15213, United States
University of Tennessee Medical Center
Knoxville, Tennessee, 37920, United States
Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
University of Texas Health Science Center at Houston
Houston, Texas, 77030, United States
University of Washington
Seattle, Washington, 98104, United States
Related Publications (2)
Brunskill SJ, Disegna A, Wong H, Fabes J, Desborough MJ, Doree C, Davenport R, Curry N, Stanworth SJ. Blood transfusion strategies for major bleeding in trauma. Cochrane Database Syst Rev. 2025 Apr 24;4(4):CD012635. doi: 10.1002/14651858.CD012635.pub2.
PMID: 40271704DERIVEDMeizoso JP, Cotton BA, Lawless RA, Kodadek LM, Lynde JM, Russell N, Gaspich J, Maung A, Anderson C, Reynolds JM, Haines KL, Kasotakis G, Freeman JJ. Whole blood resuscitation for injured patients requiring transfusion: A systematic review, meta-analysis, and practice management guideline from the Eastern Association for the Surgery of Trauma. J Trauma Acute Care Surg. 2024 Sep 1;97(3):460-470. doi: 10.1097/TA.0000000000004327. Epub 2024 Mar 27.
PMID: 38531812DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jason L Sperry, MD
University of Pittsburgh
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
December 18, 2020
First Posted
December 24, 2020
Study Start
April 19, 2022
Primary Completion
July 28, 2025
Study Completion
August 12, 2025
Last Updated
February 12, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, ICF
- Time Frame
- Data will become available after publication of the primary manuscript.
- Access Criteria
- Requests for data will be submitted in writing and reviewed by the Principal Investigator.
De-identified data may be shared with the funding agency as well as other researchers upon request to the Principal Investigator.