NCT06070350 · Philip Spinella
Massive Transfusion in Children-2: A Trial Examining Life Threatening Hemorrhage in Children
(MATIC-2)
What this study is about
The MATIC-2 is a conducted at multiple hospitals clinical trial enrolling children who are less than 18 years of age with hemorrhagic shock potentially needing significant blood transfusion.
View original scientific description
The MATIC-2 is a multicenter clinical trial enrolling children who are less than 18 years of age with hemorrhagic shock potentially needing significant blood transfusion. The primary objective of the clinical trial is to determine the effectiveness of Low Titer Group O Whole Blood (LTOWB) compared to component therapy (CT), and Tranexamic Acid (TXA) compared to placebo in decreasing 24-hour all-cause mortality in children with traumatic life threatening hemorrhage.
Interventions
BIOLOGICAL
Low Titer Group O Whole Blood (LTOWB)
LTOWB is whole blood from group O donors with low titer (\<200) anti-A and anti-B antibodies. Up to 8 units of LTOWB will be allowed unless local clinical practice allows for a higher maximum dose.
DRUG
Placebo
Placebo will be provided to the research pharmacy at each of the clinical sites
DRUG
Tranexamic Acid (TXA)
TXA is a synthetic lysine analog that competitively inhibit activation of plasminogen, thereby decreasing the conversion of plasminogen to plasmin, preventing degradation of fibrin's matrix structure. Dose is 25mg/kg IV or IO (maximum 2 grams).
BIOLOGICAL
Component Therapy (CT)
Component Therapy (CT) will be RBCs, plasma and platelet units in a 1:1:1 unit ratio. This will be given with Placebo
Primary outcome measures
24 hours all cause mortality
Time frame: 24 hours
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Children, defined as less than estimated18 years of age with traumatic injury 2. MTP activation for confirmed or suspected active life-threatening traumatic bleeding AND Confirmed or suspected active life-threatening traumatic bleeding with at least 2 of 3 of the following criteria: 1. Hypotension for age (\< 5% tile) 2. Tachycardia for age (\>95th % tile) 3. Traumatic injury with exam findings consistent with severe bleeding (e.g., penetrating injury, hemothorax, distended abdomen with bruising, amputation of limb). General
Exclusion criteria
- Patient with devastating traumatic brain injury not expected to survive due to magnitude of injury (example: Transhemispheric gunshot wound with signs of herniation, GCS score of 3 with fixed and dilated pupils) 2. MTP activated but no blood products given 3. Patients who required an ED thoracotomy or received more than 5 consecutive minutes of cardiopulmonary resuscitation (prior to receiving randomized b
Where
- Tucson, Arizona
- Little Rock, Arkansas
- Sacramento, California
- Washington D.C., District of Columbia
- Atlanta, Georgia
- New Orleans, Louisiana
- Jackson, Mississippi
- St Louis, Missouri
- Albuquerque, New Mexico
- Wake Forest, North Carolina
- Columbus, Ohio
- Portland, Oregon
And 9 more locations — see the full list below.
Collaborators
Biomedical Advanced Research and Development Authority
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 8, 2026 · Source of record for eligibility and locations