Calcium and vasopressin treatment for trauma patients at risk of shock

CAlcium and VAsopressin Following Injury Early Resuscitation (CAVALIER) Trial

Phase 2 Interventional University of Pittsburgh · NCT05958342

This study is testing if giving calcium and vasopressin to trauma patients at risk of shock can help them recover better and faster.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment1050 (estimated)
Ages18 Years to 90 Years
SexAll
SponsorUniversity of Pittsburgh Academic / other
Locations14 sites (Tucson, Arizona and 13 other locations)
Trial IDNCT05958342 on ClinicalTrials.gov

What this trial studies

The CAVALIER Trial is a multi-center, double-blind trial aimed at evaluating the safety and efficacy of administering calcium gluconate prehospital and vasopressin early in the hospital for patients experiencing hemorrhagic shock. This study focuses on patients with low blood pressure and high heart rates, indicating severe trauma. By addressing hypocalcemia, which is common in these patients, the trial seeks to improve outcomes during the critical early phases of trauma care. The research will involve both prehospital and in-hospital interventions to assess their impact on patient recovery.

Who should consider this trial

Good fit: Ideal candidates include injured patients with low blood pressure and high heart rates who are at risk of hemorrhagic shock.

Not a fit: Patients who are not experiencing hemorrhagic shock or have stable vital signs may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce mortality rates in trauma patients suffering from hemorrhagic shock.

How similar studies have performed: Previous studies have indicated that early interventions in trauma care can improve outcomes, suggesting potential success for this novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

Prehospital Phase:

Injured patients at risk of hemorrhagic shock being transported from scene or referral hospital to a participating CAVALIER trial site who meet the following criteria:

1A. Systolic blood pressure ≤ 90mmHg and tachycardia (HR ≥ 108) at scene, at outside hospital, or during anticipated transport to a participating CAVALIER trial site

OR

1B. Systolic blood pressure ≤ 70mmHg at scene, at outside hospital, or during anticipated transport to a participating CAVALIER trial site

Early In-Hospital Phase:

Injured patients at a participating CAVALIER trial site at risk of hemorrhagic shock who meet the following criteria:

1A. Systolic blood pressure ≤ 90mmHg and tachycardia (HR ≥ 108) at scene, at outside hospital, during transport, or in emergency department of a participating CAVALIER trial site

OR

1B. Systolic blood pressure ≤ 70mmHg at scene, at outside hospital, during transport, or in emergency department of a participating CAVALIER trial site

AND

2.Blood/blood component transfusion initiated in prehospital setting or deemed clinically indicated within 60 minutes of arrival at the enrolling trauma center

AND 3. Clinical team deems Operating Room for major hemorrhage control procedure (e.g., laparotomy, thoracotomy, vascular exploration or extremity amputation) indicated within 60 minutes of arrival at the enrolling trauma center

AND

4\. Anticipated admission to intensive care unit (ICU)

Exclusion Criteria:

Prehospital Phase

1. Wearing NO CAVALIER opt-out bracelet
2. Age \> 90 or \< 18 years of age
3. Isolated fall from standing injury mechanism
4. Known prisoner
5. Known pregnancy
6. Traumatic arrest with \> 5 minutes of CPR without return of vital signs
7. Brain matter exposed or penetrating brain injury
8. Isolated drowning or hanging victims
9. Objection to study voiced by subject or family member at the scene or at the trauma center
10. Inability to obtain IV/IO access

Early In-Hospital Phase:

1. Wearing NO CAVALIER opt-out bracelet
2. Age \> 90 or \< 18 years of age
3. Isolated fall from standing injury mechanism
4. Known prisoner
5. Known pregnancy
6. Traumatic arrest with \> 5 minutes of CPR without return of vital signs
7. Brain matter exposed or penetrating brain injury
8. Isolated drowning or hanging victims
9. Objection to study voiced by subject or family member at the scene or at the trauma center
10. Inability to obtain IV access

Where this trial is running

Tucson, Arizona and 13 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions TraumaHemorrhagehemorrhagic shocktraumacalcium gluconatevasopressin
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.