Effects of Low Dose Ketamine Given at Induction of Anesthesia on Postoperative Mood in Patients With Depressive Symptoms

Brief Summary

Ketamine has been shown to have an antidepressant effect when given intravenously in doses of 2mg/kg. Ketamine is used as a standard induction drug during general anesthesia. It is known in this instance to decrease postoperative pain. No one has studied whether or not ketamine when given in doses used during general anesthesia (0.5mg/kg intravenous) has an antidepressant effect on surgical patients who suffer from depression. The study is designed to determine whether or not a small dose of ketamine when given at the induction of anesthesia could have an antidepressant effect on surgical patients with depression.

Intervention / Treatment

  • Drug: Ketamine

Condition or Disease

  • Depression
  • Major Depressive Disorder


Study Design

Study type: Interventional
Status: Terminated
Study results: Has Results
Age: 18 Years to 65 Years   (Adult, Older Adult)
Enrollment: 12 ()
Funded by: Other


Clinical Trial Dates

Start date: Dec 15, 2022
Primary Completion: Sep 16, 2022
Completion Date: Sep 16, 2022
Study First Posted: Apr 21, 2015
Results First Posted: Feb 15, 2018
Last Updated: Feb 15, 2018

Sponsors / Collaborators

Lead Sponsor: N/A
Responsible Party: N/A

Non-pregnant females between the ages of 18-65 who are being admitted for gynecological surgery will be given a bedside Goldberg depression screen as part of their routine preanesthetic assessment. If the patient scores five or above on the Goldberg depression screening, they will be asked if they would like to enroll in the study. Exclusion criteria include uncontrolled hypertension, pregnancy, or allergy to ketamine.

Once the patient is consented they will be randomized to one of two groups. Every patient will receive an antianxiety medication Midazolam and a narcotic fentanyl prior to going to the operating room. Group A will receive ketamine 0.5mg/kg intravenous as part of their induction for general anesthesia. Group B will not receive ketamine as part of their anesthetic. All other induction drugs will be at the discretion of the anesthesiologist performing the anesthetic.

The patients will be seen by a separate anesthesia provider (who is blinded to the group the patient is in) and the results of the depression screening will be added to the patient's data sheet.

The patients will be followed again one week after their surgery either in their hospital room (if still hospitalized) or by phone. They will again be given the Goldberg Depression screen and the data will again be added to their data sheet.

Several times during the study and at its conclusion the data will be matched with the patients group in order to assess for adverse events such as suicidal ideations, nausea and vomiting. If adverse events are noted, the study design will be altered to take into account the adverse events.

Eligibility Criteria

Sex: Female
Minimum Age: 18
Maximum Age: 65

More Details

NCT Number: NCT02422303
Other IDs: HSC20150248H
Study URL: https://ClinicalTrials.gov/show/NCT02422303
Last updated: Jun 17, 2022