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Post-op Ketamine Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT03865550
Recruitment Status : Unknown
Verified March 2019 by Rothman Institute Orthopaedics.
Recruitment status was:  Active, not recruiting
First Posted : March 7, 2019
Last Update Posted : March 7, 2019
Information provided by (Responsible Party):
Rothman Institute Orthopaedics

Brief Summary:
The purpose of this study is to establish the effect of sub-anesthetic dosing of ketamine with spinal anesthesia during total knee arthroplasty on post-operative pain and narcotic consumption. We hypothesize that sub-anesthetic ketamine will decrease post-operative pain and narcotic consumption and may secondarily lead to shorter lengths of stay, faster rehabilitation, improved postoperative outcomes and patient satisfaction.

Condition or disease Intervention/treatment Phase
Osteo Arthritis Knee Drug: Isotonic saline Drug: Ketamine Injectable Solution Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 75 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Evaluation of Post Operative Pain Following Primary Total Knee Arthroplasty (TKA) With Intraoperative Subanesthetic Ketamine Administration and Spinal Anesthesia
Actual Study Start Date : March 28, 2016
Actual Primary Completion Date : April 27, 2018
Estimated Study Completion Date : April 27, 2019

Resource links provided by the National Library of Medicine

Drug Information available for: Ketamine

Arm Intervention/treatment
Placebo Comparator: Placebo Drug: Isotonic saline

Active Comparator: Ketamine Drug: Ketamine Injectable Solution
Active comparator

Primary Outcome Measures :
  1. Pain as reported on Visual Analog Scale [ Time Frame: Up to 6 weeks post-operatively ]
    VAS pain reported 0-100mm

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult

Inclusion Criteria:

  • 18 - 85 years of age
  • ASA I - IV
  • Undergoing primary unilateral elective total knee arthroplasty with spinal anesthesia

Exclusion Criteria:

  • BMI over 40*
  • Contraindication or allergy to opioid pain medication or ketamine*
  • Daily opioid use for pain control before surgery in excess of systemic morphine equivalent to 10 mg*
  • Ejection fraction (EF) less than 30%
  • Creatinine clearance less than 30 mL/min*
  • History of chronic liver failure
  • Desire for nerve block or general anesthesia
  • Any neurologic or psychiatric disorder (including bipolar disorder, post traumatic stress disorder, schizophrenia)
  • Prior surgery on ipsilateral knee within the last 6 months
  • Alcohol abuse

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03865550

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United States, Pennsylvania
Rothman Institute
Philadelphia, Pennsylvania, United States, 19107
Sponsors and Collaborators
Rothman Institute Orthopaedics
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Responsible Party: Rothman Institute Orthopaedics
ClinicalTrials.gov Identifier: NCT03865550    
Other Study ID Numbers: 2016Levicoff
First Posted: March 7, 2019    Key Record Dates
Last Update Posted: March 7, 2019
Last Verified: March 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Osteoarthritis, Knee
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anesthetics, Dissociative
Anesthetics, Intravenous
Anesthetics, General
Central Nervous System Depressants
Excitatory Amino Acid Antagonists
Excitatory Amino Acid Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action