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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00137085
Other study ID # PSI R04-43
Secondary ID
Status Completed
Phase N/A
First received August 26, 2005
Last updated June 13, 2007
Start date September 2004
Est. completion date August 2006

Study information

Verified date April 2006
Source Queen's University
Contact n/a
Is FDA regulated No
Health authority Canada: Health Canada
Study type Interventional

Clinical Trial Summary

We, the investigators at Queen's University, propose to conduct a randomized, double-blind, feasibility trial comparing low-dose ketamine versus fentanyl as adjuncts to Emergency Department procedural sedation with propofol. The outcomes of interest will be safety, with respect to hemodynamic and respiratory adverse effects, as well as efficacy, with respect to adequacy of sedation and analgesia, recovery profiles and patient/physician satisfaction. Our hypothesis, based on a review of existing anesthesia literature, is that low-dose ketamine may be a safer and more efficacious alternative to fentanyl when used as an adjunct to propofol-assisted procedural sedation.


Description:

This initial, single-centre feasibility study will have the following specific objectives:

- Comparison of low-dose ketamine with fentanyl as adjunct to propofol-assisted emergency department procedural sedation, with respect to safety and efficacy parameters;

- Pilot of a blinded emergency department sedation and analgesia protocol, including drug doses, concealment techniques, and data collection tools, to determine the feasibility of a subsequent larger, multi-centre trial;

- Determination of the true incidence of the primary outcome measures in the study population, using the study drug administration doses and protocol, such that an accurate sample size may be estimated for a future, adequately-powered, multi-centre trial;

- Validation of a newly-developed ordered, categorical rating scale for the reporting of respiratory and hemodynamic adverse events occurring during emergency department procedural sedation and analgesia.


Recruitment information / eligibility

Status Completed
Enrollment 124
Est. completion date August 2006
Est. primary completion date
Accepts healthy volunteers No
Gender Both
Age group 14 Years to 65 Years
Eligibility Inclusion Criteria:

- Individuals presenting or referred to the Emergency Department at Kingston General Hospital with a fracture or dislocation requiring manipulation under procedural sedation; or abscess requiring incision and drainage under procedural sedation.

- Ability to provide informed consent according to institutional requirements.

- Ability to comprehend and communicate in English.

Exclusion Criteria:

- Age < 14 or > 65 years

- Any history of significant active cardiac, pulmonary, hepatic or renal disease, as determined by patient history, chart review, or emergency physician.

- American Society of Anesthesiology (ASA) classification greater than class II.

- Body mass > 130 kg.

- A history of physician-diagnosed obstructive sleep apnea.

- Chronic use of opioids including methadone and buprenorphine.

- A self-reported history of recent substance abuse or prior opioid dependence.

- Acute intoxication with drugs or alcohol, based on the judgement of the attending physician.

- A history of psychotic disorders, as reported by subjects or identified on review of the medical records.

- A known history of allergy or sensitivity to any study medication.

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment


Related Conditions & MeSH terms


Intervention

Drug:
ketamine


Locations

Country Name City State
Canada Queen's University Kingston Ontario

Sponsors (2)

Lead Sponsor Collaborator
Queen's University The Physicians' Services Incorporated Foundation

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary The primary outcome of interest in this study will be the incidence and severity of adverse events during procedural sedation, characterized by using an ordered, four-point categorical scale of airway, ventilatory and hemodynamic adverse events.
Secondary The secondary outcome measures of this study will be: the incidence and type of individual adverse events listed in the primary outcome
Secondary the dose of propofol administered during the procedure
Secondary times from study drug administration to: beginning of procedure, end of procedure, recovery of appropriate verbal response, Emergency Department discharge, incidence of any adverse event(s)
Secondary successful completion of the procedure
Secondary the operator’s rating of the sedation
Secondary incidence of any adverse drug reaction
Secondary patient visual analogue scale (VAS) ratings of analgesia, amnesia, and general satisfaction.
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