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NCT03621085 · ClinicalTrials.gov registry record · Phase 4

Analgesics in the Pre-hospital Setting: Implications on Hemorrhage Tolerance - Ketamine

A Phase 4 study, sponsored by University of Texas Southwestern Medical Center.

Completed
Registry status
Phase 4
Development phase
43
Enrollment target

NCT03621085: Completed Phase 4 study, sponsored by University of Texas Southwestern Medical Center.

NCT03621085 is a Phase 4 study that has completed, run by University of Texas Southwestern Medical Center. The registered enrollment target is 43 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT03621085, a Phase 4 study, has completed, sponsored by University of Texas Southwestern Medical Center.

COMPLETED
Registry status
Phase 4
Development phase
43 participants
Enrollment target

Study Summary

The purpose of this project is to test how ketamine, an analgesics currently employed in the pre-hospital setting by the US Army, alters the capacity to tolerate a hemorrhagic insult in humans.

Primary Outcome

Tolerance to a simulated hemorrhagic challenge will be assessed, for both the placebo and ketamine limbs, by causing progressive central hypovolemia via lower-body negative pressure (LBNP). This progressive lower-body negative pressure challenge will be performed until the onset of syncopal symptoms (defined as: profound bradycardia, a precipitous drop in arterial blood pressure and accompanying narrowing of pulse pressure, a sustained systolic blood pressure less than 80 mmHg, and/or subjective

Interventions

  • OTHER Placebo
  • DRUG Ketamine Hydrochloride

Trial Details

FieldValue
Enrollment Target 43 participants
Start Date 2018-06-01
Est. Completion 2021-06-30
Phase Phase 4

What the finished NCT03621085 record still lists

NCT03621085 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 43 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (92% lower).

The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.

NCT03621085 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT03621085 about?

NCT03621085 is a clinical study titled "Analgesics in the Pre-hospital Setting: Implications on Hemorrhage Tolerance - Ketamine". The purpose of this project is to test how ketamine, an analgesics currently employed in the pre-hospital setting by the US Army, alters the capacity to tolerate a hemorrhagic insult in humans.

What is the current status of trial NCT03621085?

This trial is currently completed. It is a Phase 4 study. The enrollment target is 43 participants. The study started on 2018-06-01. Estimated completion is 2021-06-30.

What interventions are being tested in trial NCT03621085?

The interventions under investigation include: Placebo (OTHER), Ketamine Hydrochloride (DRUG).

Who is sponsoring clinical trial NCT03621085?

This trial is sponsored by University of Texas Southwestern Medical Center, which has 837 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT03621085's enrollment target sits among peer trials

43 1371st of 2000 higher than 621 of 2,000 other Phase 4 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 4 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT03621085, the US trial registry maintained by the National Library of Medicine. NCT03621085 (small enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.