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Analgesic Effect of Escitalopram in Total Knee Arthroplasty (TKA)

This study has been completed.
Lundbeck Foundation
Information provided by (Responsible Party):
Troels Haxholdt Lunn, Hvidovre University Hospital Identifier:
First received: September 7, 2011
Last updated: June 4, 2013
Last verified: June 2013
Pain is a major problem after TKA, especially in patients with high pain catastrophizing. Newer MR-scan studies indicate that Escitalopram may have an immediate cognitive and emotional effect. The investigators therefore investigate the effect of Escitalopram as a perioperative analgesic.

Condition Intervention Phase
Postoperative Pain
Drug: Escitalopram
Drug: Placebo
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Analgesic Effect of Perioperative Escitalopram for Patients With High Preoperative Level of Pain Catastrophising in Total Knee Arthroplasty

Resource links provided by NLM:

Further study details as provided by Hvidovre University Hospital:

Primary Outcome Measures:
  • Pain [ Time Frame: At 24 hour ]
    Pain during walking at 24 hour after surgery

Secondary Outcome Measures:
  • Pain [ Time Frame: 1 week ]
    Pain at rest and during walking the first week after TKA

  • Cumulated pain scores [ Time Frame: 1 week ]
    Cumulated pain scores for pain the first week after TKA

  • Amount of rescue analgesic [ Time Frame: 1 week ]
    Amount of rescue analgesic the first week after TKA

  • Side effects [ Time Frame: 1 week ]
    Side effects the first week after TKA

  • anxiety, depression, and sleep quality [ Time Frame: 1 week ]
    Anxiety, depression, and sleep quality - questionnaire - the first week after TKA

  • Escitalopram level in blood-sample [ Time Frame: 48 hours ]
    Escitalopram level in blood-sample 48 hours after surgery

Enrollment: 120
Study Start Date: September 2011
Study Completion Date: May 2013
Primary Completion Date: April 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: Escitalopram Drug: Escitalopram
Tables with Escitalopram (10 mg), 1 tablet a day for 7 days, starting on the day of surgery
Other Name: Cipralex
Placebo Comparator: Placebo Drug: Placebo
Placebo tablets, 1 tablet a day for 7 days, starting on the day of surgery

Detailed Description:

Pain is a major problem after TKA, especially in patients with high pain catastrophizing. Newer MR-scan studies indicate that Escitalopram may have an immediate cognitive and emotional effect. Patients with high pain catastrophizing are mentally vulnerable and may be sensitive to the effects of Escitalopram.

We therefore investigate the effect of Escitalopram as a perioperative analgesic in this group of patients where the pain problem is pronounced.


Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Primary, unilateral total knee arthroplasty (TKA)
  • Age > 18 > 81
  • Ethnic Danes
  • Score > 20 on Pain Catastrophising Scale

Exclusion Criteria:

  • Medication that causes risk in combination with SSRI (6 month)
  • Treatment for anxiety or depression
  • History of depression or mania
  • Treatment with systemic glucocorticoids (6 month)
  • Treatment with opioids (4 weeks)
  • Alcohol or drug abuse
  • History of malignancy
  • Fertile woman
  • History of epilepsia
  • Treatment with anticoagulants
  • BMI > 40
  • Disease affecting central or peripheral nerve function
  • Dementia
  • History of gastrointestinal bleeding
  • History of hepato- or renal insufficiency
  • Allergy to Escitalopram
  Contacts and Locations
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Please refer to this study by its identifier: NCT01430520

Gentofte Hospital
Gentofte, Hellerup, Denmark, 2900
Regionshospitalet Holstebro
Holstebro, Denmark, 7500
Vejle Sygehus
Vejle, Denmark, 7100
Sponsors and Collaborators
Hvidovre University Hospital
Lundbeck Foundation
Principal Investigator: Torben B Hansen, MD Regionshospitalet Holstebro
Study Director: Henrik Kehlet, MD Rigshospitalet, Denmark
Principal Investigator: Per W Kristensen, MD Vejle Sygehus
Principal Investigator: Søren Solgaard, MD Gentofte Hospital
Principal Investigator: Vibe G Frøkjær, MD Rigshospitalet, Denmark
  More Information

Responsible Party: Troels Haxholdt Lunn, MD, PHD, Hvidovre University Hospital Identifier: NCT01430520     History of Changes
Other Study ID Numbers: THL-04-11
2011-002034-38 ( EudraCT Number )
H-3-2011-055 ( Registry Identifier: Ethics Committee )
Study First Received: September 7, 2011
Last Updated: June 4, 2013

Additional relevant MeSH terms:
Pain, Postoperative
Neurologic Manifestations
Nervous System Diseases
Postoperative Complications
Pathologic Processes
Signs and Symptoms
Serotonin Uptake Inhibitors
Neurotransmitter Uptake Inhibitors
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Serotonin Agents
Physiological Effects of Drugs
Antidepressive Agents, Second-Generation
Antidepressive Agents
Psychotropic Drugs
Antiparkinson Agents
Anti-Dyskinesia Agents
Autonomic Agents
Peripheral Nervous System Agents
Muscarinic Antagonists
Cholinergic Antagonists
Cholinergic Agents
Sensory System Agents processed this record on May 23, 2017