Actively Recruiting

Phase 3
Age: 0 - 17Years
All Genders
ID06070350

Massive Transfusion in Children: a Platform RCT of Whole Blood Compared to Component Therapy and Tranexamic Acid to Placebo in Life-threatening Traumatic Bleeding

Led by Philip Spinella · Updated on 2026-05-11

1000

Participants Needed

23

Research Sites

17 weeks

Total Duration

On this page

Sponsors

P

Philip Spinella

Lead Sponsor

B

Biomedical Advanced Research and Development Authority

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are conducting the MATIC-2 trial, a multicenter phase III study, to evaluate treatments for children under 18 years old experiencing hemorrhagic shock from traumatic injury who may need large blood transfusions. The study aims to compare the effectiveness of Low Titer Group O Whole Blood (LTOWB) versus component therapy (CT), and Tranexamic Acid (TXA) versus placebo, in reducing death from any cause within 24 hours after injury. The trial also assesses safety outcomes such as organ failure, infections, and thrombotic events, as well as explores how treatments affect trauma-induced blood clotting problems and TXA drug properties in children. Participants will be randomly assigned to one of four groups receiving concurrent treatments: LTOWB with TXA, LTOWB with placebo, CT with TXA, or CT with placebo. LTOWB involves transfusing whole blood from group O donors with low antibody levels, while CT uses separate blood components in a 1:1:1 ratio. TXA is given intravenously or intraosseously at a dose based on body weight. The study excludes children with devastating brain injuries, those who had CPR for over 5 minutes before treatment, or those who received TXA before enrollment. Treatment is delivered during active life-threatening bleeding under a massive transfusion protocol. During the trial, children will be monitored for survival at 6 hours, 24 hours, 72 hours, and 28 days, along with blood transfusion volumes. Researchers will evaluate adverse events like kidney injury, respiratory distress, stroke, and infections. Blood samples and clinical data will be collected to understand blood clotting and immune responses. The study involves careful safety monitoring and aims to improve trauma resuscitation in pediatric patients. Participation duration varies depending on follow-up and treatment responses.

CONDITIONS

Brief Title

Massive Transfusion in Children-2: A Trial Examining Life Threatening Hemorrhage in Children

Who Can Participate

Age: 0 - 17Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Children under 18 years old with traumatic injury
  • Activation of massive transfusion protocol for confirmed or suspected life-threatening bleeding
  • Confirmed or suspected active life-threatening bleeding with at least two of the following: low blood pressure for age, high heart rate for age, severe bleeding signs such as penetrating injury or hemothorax
Not Eligible

You will not qualify if you...

  • Devastating traumatic brain injury unlikely to survive (e.g., transhemispheric gunshot wound with herniation, GCS score of 3 with fixed dilated pupils)
  • Massive transfusion protocol activated but no blood products given
  • Needed emergency thoracotomy or received more than 5 minutes of CPR before blood products
  • Known or suspected pregnancy
  • Known prisoners
  • Ward of the state
  • Isolated hanging, drowning, or burns
  • Previous enrollment in MATIC-2
  • Prior study opt-out with bracelet
  • Use of Tranexamic Acid before enrollment
  • More than 3 hours since injury
  • History of seizure after injury
  • Known allergy to Tranexamic Acid

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - Up to 3 hours since injury

Participants are screened for eligibility to participate in the trial.

1 screening and enrollment visit (emergency setting)

Treatment

Duration - Treatment during active hemorrhage and transfusion period

Participants receive randomized treatment with either Low Titer Group O Whole Blood (LTOWB) or Component Therapy (CT), combined with Tranexamic Acid (TXA) or placebo to manage life-threatening traumatic hemorrhage.

Treatment administered as part of emergency care with interventions concurrent during transfusion

Follow-up

Duration - Up to 28 days post-treatment

Participants are monitored for survival, safety outcomes, and adverse events including kidney injury, respiratory distress, thrombotic events, and infection up to 28 days after treatment.

Assessments at 6 hours, 24 hours, 72 hours, and 28 days post-treatment

Trial Site Locations

Total: 23 locations

1

University of Arizona

Tucson, Arizona, United States, 84719

Actively Recruiting

2

Arkansas Children's Hospital

Little Rock, Arkansas, United States, 72202

Actively Recruiting

3

University of California Davis

Sacramento, California, United States, 95817

Actively Recruiting

4

Children's National Hospital

Washington D.C., District of Columbia, United States, 20010

Actively Recruiting

5

Emory University-Arthur M. Blank Hospital

Atlanta, Georgia, United States, 30329

Actively Recruiting

6

Emory University-Scottish Rite Hospital

Atlanta, Georgia, United States, 30342

Actively Recruiting

7

Tulane School of Medicine

New Orleans, Louisiana, United States, 70118

Actively Recruiting

8

University of Mississippi Medical Center

Jackson, Mississippi, United States, 39216

Actively Recruiting

9

Washington University of St. Louis

St Louis, Missouri, United States, 63110

Actively Recruiting

10

University of New Mexico

Albuquerque, New Mexico, United States, 87131

Actively Recruiting

11

Wake Forest University Health Sciences

Wake Forest, North Carolina, United States, 27157

Actively Recruiting

12

Nationwide Children's Hospital

Columbus, Ohio, United States, 43205

Actively Recruiting

13

Oregon Health and Science University

Portland, Oregon, United States, 97239

Actively Recruiting

14

Children's Hospital of Pittsburgh of UPMC

Pittsburgh, Pennsylvania, United States, 15224

Actively Recruiting

15

LeBonheur Children's Hospital

Memphis, Tennessee, United States, 38103

Actively Recruiting

16

Vanderbilt University Medical Center

Nashville, Tennessee, United States, 37232

Not Yet Recruiting

17

The University of Texas Southwestern Medical Center

Dallas, Texas, United States, 75390

Actively Recruiting

18

Baylor College of Medicine

Houston, Texas, United States, 77030

Actively Recruiting

19

Children's Memorial Hermann Hospital

Houston, Texas, United States, 77030

Actively Recruiting

20

University of Texas Health Science Center at San Antonio

San Antonio, Texas, United States, 78229

Actively Recruiting

21

Primary Children's Hospital

Salt Lake City, Utah, United States, 84112

Actively Recruiting

22

University of Washington Harborview

Seattle, Washington, United States, 98195

Actively Recruiting

23

Medical College of Wisconsin

Milwaukee, Wisconsin, United States, 53226

Actively Recruiting

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Research Team

J

Jane Luce

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

CROSSOVER

Primary Purpose

TREATMENT

Number of Arms

4

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Published Research Related To This Trial

The effect of the proportion of low-titer O whole blood for resuscitation in pediatric trauma patients on 6-, 12- and 24-hour survival.

Ethan M Petersen, Andrew D Fisher, Michael D April...

https://pubmed.ncbi.nlm.nih.gov/39898869