Intranasal Ketamine for Acute Traumatic Pain
Intranasal Ketamine for Acute Traumatic Pain in the Emergency Department: A Prospective, Randomized Clinical Trial of Efficacy and Safety
Introduction: Ketamine has been well studied for its efficacy as an analgesic agent. However, intranasal (IN) administration of ketamine has only recently been studied in the emergency setting.
Objective: To elucidate the efficacy and adverse effects of a sub-dissociative dose of IN Ketamine compared to IV and IM morphine.
Methods: A single-center, randomized, prospective, parallel clinical trial of efficacy and safety of IN ketamine compared to IV and IM morphine for analgesia in the emergency department (ED). A convenience sample of 90 patients aged 18-70 experiencing moderate-severe acute traumatic pain (≥80mm on 100mm Visual Analog Scale [VAS]) were randomized to receive either 1.0mg/kg IN ketamine, 0.1mg/kg IV MO or 0.15mg/kg IM MO. Pain relief and adverse effects were recorded for 1 hour post-administration.
Primary Outcomes: The primary outcome was efficacy of IN ketamine compared to IV and IM MO, measured by "time-to-onset" (defined as a ≥15mm pain decrease on VAS), as well as time to and degree of maximal pain reduction.
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 4
Contacts and Locations
Study Locations
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Tel Aviv, Israel
- Tel Aviv Medical Center
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Patients aged 18-70 years, with mild to moderate blunt trauma (sustained in road, workplace and home accidents) causing moderate to severe pain (≥ 80mm score on a 100mm Visual Analog Scale=VAS) were eligible for participation in the study. Inclusion criteria also included a Glasgow Coma Score (GCS) of 15, body weight of 50-110 kg, systolic blood pressure of 90-160 mmHg, heart rate <100 bpm. Patients were also required to have an American Society of Anesthesiologists (ASA) score of 1 or 2, deny head injury, and deny regular use or use of opiates.
Exclusion Criteria:
Any analgesia received within the prior 3 hours, allergic sensitivity to morphine or ketamine, a large meal ingested within the previous hour, pregnancy, deviated nasal septum or trauma to the nose, and a history of a psychiatric condition. Despite evidence that ketamine does not exacerbate intracranial hemorrhage in patients with head trauma, patients with head injury complaining of loss of consciousness, dizziness, vomiting, or nausea were excluded as well.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Experimental: IN Ketamine
A single administration of 1 mg/kg ketamine hydrochloride delivered in an intranasal route using an atomizer
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Delivered intranasally using an atomizer
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Active Comparator: IM Morphine
A single administration of 0.15 mg/kg intramuscular morphine
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Delivered either as an IM injection or a slow IV bolus
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Active Comparator: IV Morphine
A single administration of 0.1 mg/kg slow intravascular bolus of morphine.
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Delivered either as an IM injection or a slow IV bolus
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Effectiveness of intranasal ketamine in decreasing pain intensity [patient assessed - VAS pain score]
Time Frame: 1 hour post administration
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Time to achieve a clinically meaningful pain reduction was defined as the first time-point at which the patient reported 15mm of pain reduction or more.
Maximal pain reduction was defined as the lowest VAS score reported by the patient over the course of follow-up.
Time to maximal pain reduction was defined as the time at which the patient has the lowest VAS score over the course of the hour follow-up.
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1 hour post administration
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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adverse effects [Opiate Related Symptom Distress Scale]
Time Frame: 1 hour post administration
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Adverse effects were recorded at the end of one hour using the 'Opiate Related Symptom Distress Scale' and included measurements of the presence, frequency, intensity and disruptiveness of 12 common opiate side-effects.
Among these were nausea, vomiting, urinary retention, constipation, difficulty concentrating, dizziness, confusion, and others.
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1 hour post administration
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patient satisfaction [Interview]
Time Frame: 1 hour post administration
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patients were asked to provide subjective comments
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1 hour post administration
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Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Pinchas Halpern, MD, Tel Aviv Medical Center
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pain
- Neurologic Manifestations
- Acute Pain
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Anesthetics, Dissociative
- Anesthetics, Intravenous
- Anesthetics, General
- Anesthetics
- Excitatory Amino Acid Antagonists
- Excitatory Amino Acid Agents
- Analgesics, Opioid
- Narcotics
- Ketamine
- Morphine
Other Study ID Numbers
Other Study ID Numbers
- 0312-11-TLV
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
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