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CompletedNCT06236113Updated May 21, 2024Results posted

Low Dose Ketamine for Blunt Thoracic Trauma

A Phase 4 interventional study of Ketamine 1 Mg/mL-NaCl 0.9% Intravenous Solution in Blunt Injury of Thorax and Multiple Rib Fractures, Involving Three Ribs, sponsored by North Memorial Health Care. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-05-21.

Sponsored by North Memorial Health Care · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years 3 months after the study started (first participant enrolled Oct 2021, registered Jan 2024).
Phase
Phase 4
Study type
Interventional
Enrollment
50
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The goal of this Randomized controlled double-blinded trial is to compare the addition of a ketamine infusion to placebo, when added to standard care in adult blunt trauma patients with multiple rib fractures. The main question it aims to answer are: • addition of low dose ketamine infusion (LDKI) decreases narcotic use • does LDKI impact pulmonary complications, readmission, or hospital length of stay Participants will receive usual standard of care with up to 48 hours of LDKI or placebo. If there is a comparison group: Researchers will compare infusion of a saline infusion to LDKI to see if LDKI decreases need for narcotic analgesics use.

Read the detailed description

Study Design: Randomized controlled double-blinded trial: Patients will then be randomized into one of two study groups. Both groups will receive a normal saline infusion for 48 hours of therapy. The treatment group will have ketamine added to their saline infusion via blinded pharmacy protocol to receive continuous infusion of ketamine at 0.1mg/kg/hour. The control group will receive only normal saline. Administration will occur via piggyback infusion in accordance with nursing policy.

Setting/Participants:

  • North Memorial Health Hospital: patients on 5-South - Trauma Neuro Intensive Care Unit (TNICU) and 6-West - Trauma Floor
  • 50 people will take part in this study. 25 study subjects will receive an infusion of ketamine and 25 will receive a saline infusion.
  • Patients 18 years of age or older with 3 or more rib fractures admitted to North Memorial Health Hospital will be considered for the study.

Study Interventions and Measures:

  • Ketamine low-dose infusion administered at 0.1 mg/kg/hr for 48 hours as an adjunct to standardized rib fracture management interventions as outlined in facility-approved Guidelines for Rib Fracture Management.
  • The primary study outcome will be amount of narcotic used over the 48-hour study period (expressed as morphine mg equivalents).
  • Secondary outcome measures will include: need for endotracheal intubation or non-invasive positive pressure ventilation, oxygen requirements, daily incentive spirometer values, daily forced vital capacity measurements, and subjective patient pain ratings.
  • Other outcomes measured will be Intensive Care Unit stay, total hospital length of stay, and adverse medication effects.
02

Conditions studied

  • Blunt Injury of Thorax
  • Multiple Rib Fractures, Involving Three Ribs

Keywords

  • Blunt Thoracic Trauma
03

In context

Rib Fractures

131 studies on the registry are indexed under Rib Fractures; 27 are open to participants now.

This study's enrollment of 50 is below the median of 60 across 99 interventional studies indexed under Rib Fractures.

Browse Rib Fractures studies →

Lead sponsor

This is the only study on the registry with North Memorial Health Care as lead sponsor.

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

Inclusion criteria

  • Males or females 18 years of age or older
  • Diagnosis of 3 or more acute rib fractures related to blunt traumatic chest injury.
  • Able to undergo consent procedure and give valid consent, or availability of family member to provide consent for the study

Exclusion criteria

Exclusion Criteria:

  • Age \<18 years
  • Cognitively impaired
  • Pregnant or lactating females.
  • Glasgow Coma Score (GCS) of ≤ 14 at time of admission
  • Evidence of increased intraocular pressure
  • Presence of acute coronary syndrome
  • Diagnosed moderate to severe traumatic brain injury
  • Evidence of uncontrolled intracranial hypertension
  • History of seizures or stroke
  • History of severe psychiatric disorders
  • Allergy to ketamine
  • Currently being treated, prior to admission, with opiate agonist/antagonist therapy
  • Presence of poorly controlled hypertension, cardiac arrhythmias, and/or tachycardia on admission
  • Subjects who, in the opinion of the Investigator, may be inappropriate for study participation.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
50 participants (actual)

Study arms

  • Placebo comparator
    Placebo/Control

    Pharmacist will check randomization schedule. For placebo/control subject they will prepare an infusion bag of saline with no added medication. The Study Drug Bag will be released with a label that includes: Name of Study, Study Subject #, Patient (Pt) Name, Pt Medical record number (MR#), Pt Date of birth (DOB), and INFUSION RATE.

    Drug: Ketamine 1 Mg/mL-NaCl 0.9% Intravenous Solution

  • Experimental
    Low Dose Ketamine Infusion (LDKI)

    Infusion Bag will receive 100 mg of ketamine (Ketamine Infusion Subject). The Study Drug Bag will be released with a label that includes: Name of Study, Study Subject #, Patient Name, Pt MR#, Pt DOB, and INFUSION RATE. (Note: infusion rate is 0.1 mg/kg/hr and concentration of standard ketamine infusion bag is 1 mg/mL. That is, 100 mg of ketamine added to 100 mL saline).

    Drug: Ketamine 1 Mg/mL-NaCl 0.9% Intravenous Solution

Interventions

  • DrugKetamine 1 Mg/mL-NaCl 0.9% Intravenous Solution

    administered at rate of 0.1 mg/kg/hr

    Also known as: Low Dose Ketamine Infusion, Ketamine Drip

06

What researchers measure

Primary outcomes

  1. Milligrams of Morphine Equivalents (MME) Administered

    Standardized method of reporting narcotic analgesic administration by converting opioid narcotics to the equivalent dosage of morphine that would yield same result.

    Time frame: Outcome was evaluated up to a total of 96 hours (from time zero to 48 hours of infusion and up to 48 hrs after infusion stopped.

Secondary outcomes

  1. Pulmonary Complications

    Number of participants that develop pneumonia, require intubation, or non-invasive positive pressure ventilation

    Time frame: Up to 30 days after intervention (administration of study drug)

  2. ICU Admission or Hospital Readmission

    Number of participants that requirie transfer to ICU (e.g., respiratory difficulty, tachycardia, hypotension, altered mental status) or that readmission to hospital after discharge for any reason.

    Time frame: Up to 30 days after intervention (administration of study drug)

07

Results

Posted May 21, 2024

Participant flow

Participant flow — Overall Study
MilestonePlacebo/ControlLow Dose Ketamine Infusion (LDKI)
Started2525
Completed2525
Not completed00

Outcome measures

PrimaryMilligrams of Morphine Equivalents (MME) Administered

Standardized method of reporting narcotic analgesic administration by converting opioid narcotics to the equivalent dosage of morphine that would yield same result.

Time frame:
Outcome was evaluated up to a total of 96 hours (from time zero to 48 hours of infusion and up to 48 hrs after infusion stopped.
Reported as:
Mean · Morphine Milligam Equivalents (MME)
Milligrams of Morphine Equivalents (MME) Administered
Morphine Milligam Equivalents (MME)Placebo/ControlLow Dose Ketamine Infusion (LDKI)
Milligrams of Morphine Equivalents (MME) Administered84.9 ± 31.981.7 ± 32.4
SecondaryPulmonary Complications

Number of participants that develop pneumonia, require intubation, or non-invasive positive pressure ventilation

Time frame:
Up to 30 days after intervention (administration of study drug)
Reported as:
Count of participants · Participants
Pulmonary Complications
ParticipantsPlacebo/ControlLow Dose Ketamine Infusion (LDKI)
Develop pneumonia30
Require non-invasive positive pressure ventilation89
Require intubation11
No pulmonary complications1314
SecondaryICU Admission or Hospital Readmission

Number of participants that requirie transfer to ICU (e.g., respiratory difficulty, tachycardia, hypotension, altered mental status) or that readmission to hospital after discharge for any reason.

Time frame:
Up to 30 days after intervention (administration of study drug)
Reported as:
Count of participants · Participants
ICU Admission or Hospital Readmission
ParticipantsPlacebo/ControlLow Dose Ketamine Infusion (LDKI)
ICU Readmission within 30 days20
Hospital Readmission within 30 days31
No need for hospital or ICU readmission2023

Adverse events

Collected over Adverse events data were specifically analyzed for a time period within 30 days of initiation of study drug infusion.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Placebo/Control0/25 (0%)1/25 (4%)11/25 (44%)
Low Dose Ketamine Infusion (LDKI)0/25 (0%)1/25 (4%)9/25 (36%)
Most frequent serious events
Most frequent serious events
EventPlacebo/ControlLow Dose Ketamine Infusion (LDKI)
Acute Respiratory failureRespiratory, thoracic and mediastinal disorders1/251/25
Most frequent other events
Most frequent other events
EventPlacebo/ControlLow Dose Ketamine Infusion (LDKI)
Non-serious adverse eventsRespiratory, thoracic and mediastinal disorders11/259/25

Baseline characteristics

Adult trauma in-patients with three or more rib fractures. Inclusion criteria were: age \>18 years, known blunt chest trauma with \>three rib fractures, and able to provide informed consent.

Age, Categorical
Age, Categorical(Participants)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
<=18 years000
Between 18 and 65 years131730
>=65 years12820
Age, Continuous
Age, Continuous(years)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
Mean64.8 ± 11.257.6 ± 14.862.8 ± 13.5
Sex: Female, Male
Sex: Female, Male(Participants)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
Female8513
Male172037
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
Count of participants——0
Region of Enrollment
Region of Enrollment(participants)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
United States252550
Average number fractured ribs
Average number fractured ribs(Number of fractured ribs)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
Mean5.7 ± 1.97.1 ± 3.86.3 ± 3.0
Injury Severity Score (ISS)
Injury Severity Score (ISS)(Units on a scale)Placebo/ControlLow Dose Ketamine Infusion (LDKI)Total
Mean11.4 ± 3.215.1 ± 5.113.0 ± 4.5
08

Study locations

1 site
  • North Memorial Health Hospital
    Robbinsdale, Minnesota 55422, United States
09

References and documents

Publications

  • Walters MK, Farhat J, Bischoff J, Foss M, Evans C. Ketamine as an Analgesic Adjuvant in Adult Trauma Intensive Care Unit Patients With Rib Fracture. Ann Pharmacother. 2018 Sep;52(9):849-854. doi: 10.1177/1060028018768451. Epub 2018 Apr 2. PubMed 29607659 ↗

Study documents

  • Protocol and statistical analysis plan · Jan 13, 2021
  • Informed consent form · Nov 12, 2020

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

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 21, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT06236113
Lead sponsor
North Memorial Health Care
Responsible party
Michaela A West (Trauma Research Chair, North Memorial Health Care) — Principal investigator
First posted
Feb 1, 2024
Start date
Oct 1, 2021
Primary completion
Mar 19, 2023
Completion
Jun 26, 2023
Results posted
May 21, 2024
Last update
May 21, 2024

Study contacts

Michaela A West, MD, PhD
study director · North Memorial Health
Joseph Farhat, MD
principal investigator · North Memorial Health

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 May 2024. You cannot join it, but the record below documents what was studied.

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