ClinicalTrials.gg
TerminatedNCT00420407Updated Jun 18, 2019Results posted

Low Dose Vasopressin in Traumatic Shock

An Early Phase 1 interventional study of normal saline control and vasopressin in Injuries and Shock, Traumatic, sponsored by The University of Texas Health Science Center at San Antonio. Terminated at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-06-18.

Sponsored by The University of Texas Health Science Center at San Antonio · Early Phase 1, Interventional, and Treatment

Why this study was terminated
accrual rate
Phase
Early Phase 1
Study type
Interventional
Enrollment
81
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Hypothesis: We hypothesize that resuscitation regimens which minimize the total volume of resuscitation fluid, while restoring organ perfusion, will lead to lower morbidity and mortality in critically ill patients following trauma.

02

Conditions studied

  • Injuries
  • Shock, Traumatic

Browse trials for

03

In context

Wounds and Injuries

5,085 studies on the registry are indexed under Wounds and Injuries; 849 are open to participants now.

This study's enrollment of 81 is above the median of 52 across 3,261 interventional studies indexed under Wounds and Injuries.

Browse Wounds and Injuries studies →

Lead sponsor

The University of Texas Health Science Center at San Antonio is the lead sponsor of 443 studies on the registry; 88 are open to participants now.

Of its 64 completed or terminated interventional studies of FDA-regulated products, 35 (55%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
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

To be eligible for enrollment in the study, a patient must meet all of the follow criteria at assessment:

  • Patient is a male or female patient presumed to be at least 18 years of age;
  • Patient has a systolic blood pressure \< 90 mmHg;
  • Patient has clinical evidence of acute traumatic injury;
  • Infusion of study drug must start within one hour following SBP (systolic blood pressure) \< 90 mmHg

Exclusion criteria

Exclusion Criteria:

A patient meeting any one of the following criteria at hospital assessment is not eligible for enrollment:

  • Patient is admitted to one of the study hospitals' Emergency Department greater than six hours after injury;
  • Patient has received greater than 4 liters fluid since time of injury;
  • Patient is enrolled in another shock trial;
  • Patient is asystolic or requires CPR (cardiopulmonary resucitation) prior to randomization;
  • Female patient is pregnant by report or suspicion;
  • Patient has known "Do Not Resuscitate" orders or visible/identifiable method of objection to participation (e.g., exclusion bracelet);
05

Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
81 participants (actual)

Study arms

  • Experimental
    I

    Vasopressin

    Drug: vasopressin

  • Placebo comparator
    2

    bolus of NS (normal saline) followed by continuous infusion of NS, no vasopressin added

    Drug: normal saline control

Interventions

  • Drugnormal saline control

    no vasopressin added to bolus or 5 hour continuous infusion

  • vasopressin bolus 4 units followed by continuous infusion 2.4units/hr for 5 hours

06

What researchers measure

Primary outcomes

  1. The Primary Endpoint of This Study Will be Day 30 Mortality.

    Survival of a traumatic injury subject to at least 30 days after admission to the emergency room.

    Time frame: 30 days

Secondary outcomes

  1. Level of Vasopressin After Trauma.

    Level of vasopressin 12 hours after infusion was measured for all subjects in vasopressin arm

    Time frame: 12 hours

07

Results

Posted Apr 16, 2013

Participant flow

recruitment location - Emergency room Feb 2007- Feb 2009

Participant flow — Overall Study
MilestoneNormal SalineVasopressin
Started4140
Completed3734
Not completed46
Withdrew: Lost to follow-up03
Withdrew: Physician decision21
Withdrew: Subject identified as detainee10
Withdrew: Subject identified as jehovah's witness10
Withdrew: Withdrawal by subject02

Outcome measures

PrimaryThe Primary Endpoint of This Study Will be Day 30 Mortality.

Survival of a traumatic injury subject to at least 30 days after admission to the emergency room.

Time frame:
30 days
Reported as:
Number · Participants
The Primary Endpoint of This Study Will be Day 30 Mortality.
ParticipantsNormal SalineVasopressin
The Primary Endpoint of This Study Will be Day 30 Mortality.1113
SecondaryLevel of Vasopressin After Trauma.

Level of vasopressin 12 hours after infusion was measured for all subjects in vasopressin arm

Time frame:
12 hours
Reported as:
Mean · pg/ml
Level of Vasopressin After Trauma.
pg/mlEvaluation of Vasopressin Level Following Trauma
Level of Vasopressin After Trauma.25 ± 37

Adverse events

Collected over Reported Adverse Events (AEs) include events starting on or after Day 0 or before Day 30. Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Normal Saline—19/41 (46.3%)37/41 (90.2%)
Vasopressin—20/40 (50%)35/40 (87.5%)
Most frequent serious events
Showing 10 of 32
Most frequent serious events
EventNormal SalineVasopressin
Multiple Organ FailureGeneral disorders2/414/40
Traumatic Brain Injury (TBI)Nervous system disorders3/414/40
Cardiopulmonary ArrestGeneral disorders4/413/40
PneumoniaRespiratory, thoracic and mediastinal disorders4/413/40
Hemorrhagic ShockGeneral disorders1/413/40
Deep Vein ThrombosisVascular disorders0/413/40
Multisystem TraumaGeneral disorders3/410/40
HypertensonCardiac disorders0/412/40
Cardiac ArrhythmiaCardiac disorders1/412/40
Acute Respiratory Distress Syndrome (ARDS)Respiratory, thoracic and mediastinal disorders1/412/40
Most frequent other events
Showing 10 of 81
Most frequent other events
EventNormal SalineVasopressin
HyperglycemiaEndocrine disorders9/416/40
Skin BreakdownSkin and subcutaneous tissue disorders3/418/40
HypophosphatemiaEndocrine disorders7/412/40
ConstipationGastrointestinal disorders6/415/40
Multiorgan failureGeneral disorders6/413/40
AnemiaBlood and lymphatic system disorders3/415/40
HypocalcemiaEndocrine disorders5/413/40
HypokalemiaEndocrine disorders5/414/40
insomiaNervous system disorders5/411/40
Pleural EffusionsRespiratory, thoracic and mediastinal disorders5/411/40

Baseline characteristics

Vasopressin enrolled 40 and two withdrawn and never received drug (38) Normal saline enrolled 41 and one withdrawn and never received drug (40)

Age, Categorical
Age, Categorical(Participants)Normal SalineVasopressinTotal
<=18 years000
Between 18 and 65 years353570
>=65 years6511
Age, Continuous
Age, Continuous(years)Normal SalineVasopressinTotal
Mean46.3 ± 26.148.1 ± 19.847.1 ± 20.4
Sex: Female, Male
Sex: Female, Male(Participants)Normal SalineVasopressinTotal
Female71118
Male342963
Region of Enrollment
Region of Enrollment(participants)Normal SalineVasopressinTotal
United States414081
08

Study locations

1 site
  • University of Texas Health Science Center at San Antonio
    San Antonio, Texas 78229, United States
09

References and documents

Publications

  • Cohn SM, McCarthy J, Stewart RM, Jonas RB, Dent DL, Michalek JE. Impact of low-dose vasopressin on trauma outcome: prospective randomized study. World J Surg. 2011 Feb;35(2):430-9. doi: 10.1007/s00268-010-0875-8. PubMed 21161222 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 18, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00420407
Responsible party
Sponsor
First posted
Jan 11, 2007
Start date
Feb 2007
Primary completion
Apr 2009
Completion
Feb 2011
Results posted
Apr 16, 2013
Last update
Jun 18, 2019

Study contacts

Stephen M. Cohn, MD
principal investigator · The University of Texas Health Science Center at San Antonio

Oversight

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

Not currently enrolling

This study is terminated, as verified in Apr 2013. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drug tested here: Arginine Vasopressin

Start the discussion