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CompletedNCT03469947Cal-PATUpdated Jul 30, 2024

California Prehospital and In Hospital Antifibrinolytic Therapy Via TXA

A Phase 3 interventional study of Tranexamic Acid in Hemorrhagic Shock and Trauma Injury, sponsored by Arrowhead Regional Medical Center. Completed. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2024-07-30.

Sponsored by Arrowhead Regional Medical Center · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Jul 2024, 2 years 2 months ago, and no results have been posted to the registry.
  • Registered 3 years after the study started (first participant enrolled Mar 2015, registered Mar 2018).
Phase
Phase 3
Study type
Interventional
Enrollment
200
Allocation
Non-randomized
Ages
18 Years to 90 Years
Sex
All
01

Study summary

The California Prehospital Antifibrinolytic Therapy (Cal-PAT) study seeks to evaluate the safety and efficacy of Tranexamic Acid (TXA) use in the civilian prehospital and in hospital setting in cases of traumatic hemorrhagic shock.

Read the detailed description

The Cal-PAT study is a multi-centered, prospective, observational cohort study. From March 2015 to July 2017, patients ≥ 18-years-old who sustained blunt or penetrating trauma with signs of hemorrhagic shock identified were considered for TXA treatment by first responders in the prehospital setting and physicians in hospital. A control group was formed of patients seen in the five years prior to data collection cessation (June 2012 to July 2017) at each receiving center who were not administered TXA. Control group patients were selected through propensity score matching based on gender, age, injury severity scores, and mechanism of injury. The primary outcome measured was mortality. Secondary outcomes measured included the total blood products transfused, the hospital and intensive care unit length of stay, and the incidence of known adverse events associated with TXA.

02

Conditions studied

  • Hemorrhagic Shock
  • Trauma Injury

Keywords

  • Tranexamic Acid
  • TXA
03

In context

Shock, Hemorrhagic

81 studies on the registry are indexed under Shock, Hemorrhagic; 16 are open to participants now.

This study's enrollment of 200 is above the median of 100 across 42 interventional studies indexed under Shock, Hemorrhagic.

Browse Shock, Hemorrhagic studies →

Lead sponsor

Arrowhead Regional Medical Center is the lead sponsor of 15 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 90 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Blunt or penetrating trauma with signs and symptoms of hemorrhagic shock
  • Systolic blood pressure less than 90 mmHg at scene of injury, during air and/or ground medical transport, or on arrival to designated trauma centers
  • Any sustained blunt or penetrating injury within 3 hours
  • Patient who are considered to be at high risk for significant hemorrhage

    1. Estimated blood loss of 500 milliliters int he field accompanied with HR >120
    2. Bleeding not controlled by direct pressure or tourniquet
    3. Major amputation of any extremity above the wrists and above the ankles

Exclusion criteria

Exclusion Criteria:

  • Any patient under 18 years of age
  • Any patient with an active thromboembolic event (within the last 24 hours) i.e. active stroke, myocardial infarction, or pulmonary embolism
  • Any patient with a hypersensitivity or anaphylactic reaction to TXA
  • Any patient more than 3 hours post injury
  • Traumatic arrest with > 5 minutes CPR without return of vital signs
  • Penetrating cranial injury
  • Traumatic brain injury with brain matter exposed
  • Isolated drowning or hanging victims
  • Documented cervical cord injury with motor deficit
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
200 participants (actual)

Study arms

  • Experimental
    Prehospital Tranexamic Acid

    1 gram of Tranexamic Acid will be given during medical transport

    Drug: Tranexamic Acid

  • No intervention
    Matched Controls

    Retrospective matched controls

Interventions

06

What researchers measure

Primary outcomes

  1. Survival at 24 hours

    Mortality at 24 hours

    Time frame: 24 hours

  2. Survival at 48 hours

    Mortality at 48 hours

    Time frame: 48 hours

  3. Survival at 28 days

    Mortality at 28 days

    Time frame: 28 days

Secondary outcomes

  1. Blood Transfusion

    Units of blood products needed (\<2 units, 2-4 units, \>4 units)

    Time frame: 24 hours

  2. Length of Hospital Stay

    Duration of ICU stay

    Time frame: 28 days

  3. Adverse Events

    Incidence of known adverse events associated with TXA

    Time frame: 28 days

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • CRASH-2 collaborators; Roberts I, Shakur H, Afolabi A, Brohi K, Coats T, Dewan Y, Gando S, Guyatt G, Hunt BJ, Morales C, Perel P, Prieto-Merino D, Woolley T. The importance of early treatment with tranexamic acid in bleeding trauma patients: an exploratory analysis of the CRASH-2 randomised controlled trial. Lancet. 2011 Mar 26;377(9771):1096-101, 1101.e1-2. doi: 10.1016/S0140-6736(11)60278-X. PubMed 21439633 ↗
  • Morrison JJ, Dubose JJ, Rasmussen TE, Midwinter MJ. Military Application of Tranexamic Acid in Trauma Emergency Resuscitation (MATTERs) Study. Arch Surg. 2012 Feb;147(2):113-9. doi: 10.1001/archsurg.2011.287. Epub 2011 Oct 17. PubMed 22006852 ↗
  • Neeki MM, Dong F, Toy J, Vaezazizi R, Powell J, Jabourian N, Jabourian A, Wong D, Vara R, Seiler K, Pennington TW, Powell J, Yoshida-McMath C, Kissel S, Schulz-Costello K, Mistry J, Surrusco MS, O'Bosky KR, Van Stralen D, Ludi D, Sporer K, Benson P, Kwong E, Pitts R, Culhane JT, Borger R. Efficacy and Safety of Tranexamic Acid in Prehospital Traumatic Hemorrhagic Shock: Outcomes of the Cal-PAT Study. West J Emerg Med. 2017 Jun;18(4):673-683. doi: 10.5811/westjem.2017.2.32044. Epub 2017 Apr 19. PubMed 28611888 ↗

Study documents

  • Protocol and statistical analysis plan · Mar 7, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Mar 2015 to primary completion in Jul 2024, 112 months.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 8, 2018
First posted
Mar 19, 2018
StartActual
Mar 2015
Primary completionActual
Jul 29, 2024
CompletionActual
Jul 29, 2024
Last update
Jul 30, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 30, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03469947
Lead sponsor
Arrowhead Regional Medical Center
Responsible party
Michael Neeki (Director of Research - Emergency Medicine, Arrowhead Regional Medical Center) — Principal investigator
First posted
Mar 19, 2018
Start date
Mar 2015
Primary completion
Jul 29, 2024
Completion
Jul 29, 2024
Last update
Jul 30, 2024

Study contacts

Michael Neeki
principal investigator · Arrowhead Regional Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2024. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Tranexamic Acid

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